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Yang F, Chen W, Dabbour M, Kumah Mintah B, Xu H, Pan J, Dai C, Ma H, He R. Preparation of housefly (Musca domestica) larvae protein hydrolysates: Influence of dual-sweeping-frequency ultrasound-assisted enzymatic hydrolysis on yield, antioxidative activity, functional and structural attributes. Food Chem 2024; 440:138253. [PMID: 38150897 DOI: 10.1016/j.foodchem.2023.138253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 12/08/2023] [Accepted: 12/19/2023] [Indexed: 12/29/2023]
Abstract
Dual-sweeping-frequency ultrasound (DSFU) was utilized in the preparation of polypeptides from housefly (Musca domestica) larvae protein (HLP). Results indicated that ultrasonication (20 ± 2/28 ± 2 kHz, 42 W/L, 25 min) significantly increased peptide yield and DPPH scavenging capacity by 8.25 % and 14.83 %, respectively. Solubility, foaming and emulsification properties of polypeptides were improved by 19.89 %, 33.33 % and 38.74 % over the control; along with notable reduction in particle size and increase in zeta potential. Tertiary structural changes of the sonicated hydrolysates were illustrated by UV and fluorescence spectra. FTIR showed that ultrasonication increased α-helix, β-turn, and random coil by 38.23 %, 46.35 % and 16.36 %, respectively, but decreased β-sheet by 48.03 %, indicating partial unfolding in HLP hydrolysate conformation and reduction in intermolecular interactions. The research results demonstrated that dual-sweeping-frequency ultrasonication has a great prospect in industry application for the purpose of improving enzymolysis efficiency and product quality for housefly larvae protein hydrolysates production.
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Affiliation(s)
- Fan Yang
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Wen Chen
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Mokhtar Dabbour
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Department of Agricultural and Biosystems Engineering, Faculty of Agriculture, Benha University, P.O. Box 13736, Moshtohor, Qaluobia, Egypt
| | - Benjamin Kumah Mintah
- CSIR - Food Research Institute, P.O. Box M20, Accra, Ghana; Department of Agro-Processing Technology and Food Bio-Sciences, CSIR College of Science and Technology (CCST), Accra, Ghana
| | - Haining Xu
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Jiayin Pan
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Chunhua Dai
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Haile Ma
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Ronghai He
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China.
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Dörper A, Berman HM, Gort G, van Harn J, Dicke M, Veldkamp T. Effects of different black soldier fly larvae products on slow-growing broiler performance and carcass characteristics. Poult Sci 2024; 103:103481. [PMID: 38340663 PMCID: PMC10869907 DOI: 10.1016/j.psj.2024.103481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 01/15/2024] [Accepted: 01/16/2024] [Indexed: 02/12/2024] Open
Abstract
Black soldier fly (BSF) larvae have gained significant attention as ingredients for poultry feed to improve value chain circularity and sustainability. Black soldier fly larvae contain bioactive compounds which can potentially improve broiler health and thereby performance. However, the functionality of bioactive compounds likely depends on how larvae are processed prior to feeding and to which extent larvae products are included in the diet. This may explain the variable results reported in literature on broiler performance and carcass characteristics when feeding them different types of BSF larvae products at different inclusion levels. Therefore, the present research aimed to investigate the effects of different BSF larvae products and inclusion levels in diets on performance and carcass characteristics of slow-growing broilers. The experiment started with 1,728 one-day-old slow-growing male broilers (Hubbard JA757). Nine dietary treatments were used, each replicated eight times. One group of broilers was given a control diet. The following BSF larvae products were investigated: live larvae, a combination of BSF larvae meal and oil mimicking the nutritional composition of the live larvae, and BSF larvae meal and oil separately. All insect products were tested at two inclusion levels. All diet programs were nutritionally comparable (isoenergetic and based on balanced levels of digestible essential amino acids). During the 7-wk trial, several performance parameters and carcass characteristics were measured. The results show that comparable or better broiler performance was achieved with the inclusion of BSF larvae products in the diets compared to the control. Based on the feed conversion ratio (FCR), the unprocessed larvae product and the highest inclusion level led to the most favorable results. Carcass characteristics remained unchanged when BSF larvae products were used in the diets compared to the control group, indicating favorable production output. The BSF larvae products investigated seem suitable feed ingredients for broilers at the current levels tested, generating performance benefits.
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Affiliation(s)
- Anna Dörper
- Laboratory of Entomology, Wageningen University & Research, Wageningen, 6700AA, the Netherlands.
| | - Henrieke M Berman
- Laboratory of Entomology, Wageningen University & Research, Wageningen, 6700AA, the Netherlands; Animal Nutrition Group, Wageningen University & Research, Wageningen, 6700AH, the Netherlands
| | - Gerrit Gort
- Biometris, Wageningen University & Research, Wageningen, 6700AA, the Netherlands
| | - Jan van Harn
- Wageningen Livestock Research, Wageningen University & Research, Wageningen, 6700AH, the Netherlands
| | - Marcel Dicke
- Laboratory of Entomology, Wageningen University & Research, Wageningen, 6700AA, the Netherlands
| | - Teun Veldkamp
- Wageningen Livestock Research, Wageningen University & Research, Wageningen, 6700AH, the Netherlands
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Hoon Lee J, Kim YJ, Kim TK, Song KM, Choi YS. Effect of ethanol treatment on the structural, techno-functional, and antioxidant properties of edible insect protein obtained from Tenebrio molitor larvae. Food Chem 2024; 437:137852. [PMID: 37922798 DOI: 10.1016/j.foodchem.2023.137852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 10/11/2023] [Accepted: 10/23/2023] [Indexed: 11/07/2023]
Abstract
Edible insect-derived proteins have attracted considerable attention in the food industry owing to their excellent nutritional and bio-functional activities. Herein, ethanol (20, 40, 60, and 80 %)-treated Tenebrio molitor protein (ETMP) was prepared, and its structural, techno-functional, and antioxidant properties were assessed. As the ethanol concentration increased, the molecular weight of the ETMP decreased, and α-helix content decreased whereas that of β-sheet increased, affecting the secondary structure. Ethanol treatment also resulted in changes in the techno-functional properties of edible insect proteins. ETMP showed significant 2,2'-Azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt radical-scavenging activity (p < 0.05), and its antioxidant activity effectively increased the viability of Vero cells damaged by oxidative stress; 20 % ethanol treatment induced the highest antioxidant activity. In conclusion, our results suggest that appropriate ethanol treatment (20 %) increases the antioxidant activity of edible insect proteins, suggesting their potential in food as an alternative protein resource and functional food with excellent antioxidant activity.
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Affiliation(s)
- Jae Hoon Lee
- Research Group of Food Processing, Korea Food Research Institute, Wanju 55365, Republic of Korea
| | - Yea-Ji Kim
- Research Group of Food Processing, Korea Food Research Institute, Wanju 55365, Republic of Korea
| | - Tae-Kyung Kim
- Research Group of Food Processing, Korea Food Research Institute, Wanju 55365, Republic of Korea
| | - Kyung-Mo Song
- Research Group of Food Processing, Korea Food Research Institute, Wanju 55365, Republic of Korea
| | - Yun-Sang Choi
- Research Group of Food Processing, Korea Food Research Institute, Wanju 55365, Republic of Korea.
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Hosseindoust A, Ha SH, Mun JY, Kim JS. A metanalysis to evaluate the effects of substrate sources on the nutritional performance of black soldier fly larvae: implications for sustainable poultry feed. Poult Sci 2024; 103:103299. [PMID: 38071784 PMCID: PMC10750176 DOI: 10.1016/j.psj.2023.103299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 11/13/2023] [Accepted: 11/14/2023] [Indexed: 12/29/2023] Open
Abstract
This meta-analysis presents an evaluation of substrate sources and their impact on the growth performance of black soldier fly (BSF) larva. The database, compiled from Google Scholar, PubMed, and Science Direct, focuses on data concerning substrate sources, environmental conditions, and the performance parameters of BSF. Seven types of substrates were analyzed, including Feed Waste, Manure, Fruits, Mix, Animal Source, Fermentation Residue, and Food Waste. The Feed Waste group demonstrated the highest DM content, while the highest CP content was found in the Animal Source group. Higher CP and DM content were found in larva meal from Fermentation Residues and Feed Waste diets, respectively. Higher survival rates were observed in BSF larvae fed on Feed Waste, Fermentation Residues, Food Waste, Fruits, Mix, and Manure substrates compared to Vegetable and Animal Source substrates. Fresh larval weight was lower when Manure was used as a feed substrate than in the Animal Source, Feed Waste, and Vegetable substrates. The prepupal Wet Weight was highest in BSF larvae fed on Animal Source, surpassing those fed on Fermentation Residue, Manure, and Vegetable substrates. Substrate CP content exhibited a positive relationship with fresh larva weight, prepupal wet weight, dry larval weight; larval length, mortality until prepupal, protein conversion, feed conversion ratio, food consumption, substrate reduction rate bioconversion ratio, waste reduction index, and efficiency conversion of digested feed in BSF larva. In conclusion, our findings underline that the source and composition of substrates are correlated to the nutritional composition and conversion efficiency of BSF larva meal.
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Affiliation(s)
- Abdolreza Hosseindoust
- Department of Animal Industry Convergence, Kangwon National University, Chuncheon 24341, Korea
| | - Sang Hun Ha
- Department of Animal Industry Convergence, Kangwon National University, Chuncheon 24341, Korea
| | - Jun Young Mun
- Department of Animal Industry Convergence, Kangwon National University, Chuncheon 24341, Korea
| | - Jin Soo Kim
- Department of Animal Industry Convergence, Kangwon National University, Chuncheon 24341, Korea.
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Zhang ZQ, Ren XR, Geng J, Chen SC, Wang QL, Liu CQ, Xiao JH, Huang DW. Identification, characterization and hypolipidemic effect of novel peptides in protein hydrolysate from Protaetia brevitarsis larvae. Food Res Int 2024; 176:113813. [PMID: 38163717 DOI: 10.1016/j.foodres.2023.113813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 11/29/2023] [Accepted: 12/02/2023] [Indexed: 01/03/2024]
Abstract
The proteins were mainly derived from Protaetia brevitarsis larval extracts obtained using two empty intestine methods (traditional static method: TSM or salt immersion stress method: SISM) and extraction solvents (water: W or 50 % water-ethanol: W:E), and the proteins were used as objects to investigate the effect of emptying intestine methods on hypolipidemic peptides. The results revealed that the F-2 fractions of protein hydrolysate had stronger in vitro hypolipidemic activity, with the peptides obtained by SISM possessing a stronger cholesterol micelle solubility inhibition rate, especially in SISM-W:E-P. Moreover, a total of 106 peptides were tentatively identified, among which SISM identified more peptides with an amino acid number < 8. Meanwhile, five novel peptides (YPPFH, YPGFGK, KYPF, SPLPGPR and VPPP) exhibited good hypolipidemic activity in vitro and in vivo, among which YPPFH, VPPP and KYPF had strong inhibitory activities on pancreatic lipase (PL) and cholesteryl esterase (CE), and KYPF, SPLPGPR and VPPP could significantly reduce the TG content in Caenorhabditis elegans. Thus, P. brevitarsis can be developed as a naturally derived hypolipidemic component for the development and application in functional foods.
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Affiliation(s)
- Zong-Qi Zhang
- College of Life Sciences, Nankai University, Tianjin 300071, People's Republic of China
| | - Xin-Rui Ren
- College of Life Sciences, Nankai University, Tianjin 300071, People's Republic of China
| | - Jin Geng
- College of Life Sciences, Nankai University, Tianjin 300071, People's Republic of China
| | - Si-Cong Chen
- College of Life Sciences, Nankai University, Tianjin 300071, People's Republic of China
| | - Qing-Lei Wang
- Hebei Key Laboratory of Soil Entomology, Cangzhou Academy of Agriculture and Forestry Sciences, Cangzhou 061001, People's Republic of China
| | - Chun-Qin Liu
- Hebei Key Laboratory of Soil Entomology, Cangzhou Academy of Agriculture and Forestry Sciences, Cangzhou 061001, People's Republic of China
| | - Jin-Hua Xiao
- College of Life Sciences, Nankai University, Tianjin 300071, People's Republic of China.
| | - Da-Wei Huang
- College of Life Sciences, Nankai University, Tianjin 300071, People's Republic of China.
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Taufek NM, Mohamad Zulkifli NFN, Hamizah AN. Upcycling of food waste generated from the fresh market by utilising black soldier fly larvae: Influence on growth, bioconversion, and nutritional composition. J Environ Manage 2024; 349:119467. [PMID: 37976636 DOI: 10.1016/j.jenvman.2023.119467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 10/19/2023] [Accepted: 10/24/2023] [Indexed: 11/19/2023]
Abstract
Innovative solutions are needed to limit environmental effect and optimise resource use as food waste generation rises worldwide. This study investigates the potential of upcycling food waste from fresh markets using Black Soldier Fly (Hermetia illucens) larvae (BSFL) as a sustainable approach. This study explored four fresh market food waste substrates for BSFL bioconversion: discarded fish waste (FI), slaughtered chicken waste (CHI), vegetable waste (VEG), and a 1:1:1 combination of all three (MIX). Soybean curd residue (SCR) was treated as the control substrate. The effects on larval growth, nutritional content, and waste bioconversion rates were examined. The larvae growth rate was strongly impacted by waste type, with BSF-fed CHI and MIX gaining 18.0 and 16.7 mg/d, respectively, followed by BSF-fed with SCR (12.2 mg/d), FI (8.9 mg/d) and VEG (7.6 mg/d). The waste type did not substantially alter BSFL length. The survival rate of the BSFL fed with the food waste studied ranges from 95 to 98.47%, with SCR being the highest. Our findings indicated that BSFL can effectively convert a variety of fresh market food waste into valuable biomass. CHI waste produced the highest larval biomass and bioconversion rate followed by MIX, SCR, FI and VEG. The different waste stream has a major influence on BSFL biomass nutrition. BSFL nutritional composition is independent of the substrate's nutritional content, indicating no direct correlation between substrate and BSFL biomass nutritional composition. SCR waste produced the highest protein content of BSFL (50.49%), followed by VEG (32.61%), MIX (32.57%), FI (31.03%) and CHI (29.06%). SCR waste also produced BSFL biomass with lowest lipid content (26.55%) compared to other waste which resulted into BSFL with lipid levels ranging from 42.92% to 53.72%. BSFL-fed with SCR is the most suitable to be used as an alternative animal's feed based on the protein and lipid levels, while defatting procedure is necessary for the other waste-fed BSFL to render it suitability as animal feed alternatives. Based on bioconversion rate, BSFL growth, and lipid content, the MIX and CHI waste might be viable substrates for future research.
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Affiliation(s)
- Norhidayah Mohd Taufek
- Aqua Nutri Biotechnology Laboratory, Institute of Biological Sciences, Faculty of Science, Universiti Malaya, 50603, Kuala Lumpur, Malaysia; Ladang Mini, Institute of Biological Sciences, Faculty of Science, Universiti Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Nor Fatin Najihah Mohamad Zulkifli
- Aqua Nutri Biotechnology Laboratory, Institute of Biological Sciences, Faculty of Science, Universiti Malaya, 50603, Kuala Lumpur, Malaysia; Ladang Mini, Institute of Biological Sciences, Faculty of Science, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Ahmad Nazri Hamizah
- Aqua Nutri Biotechnology Laboratory, Institute of Biological Sciences, Faculty of Science, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
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Chalghaf M, Charradi K, Ksouri R, Alsulami QA, Jaouani A, Keshk SMAS, Hayouni EA. Physicochemical characterization of chitin extracted by different treatment sequences from an edible insect. Int J Biol Macromol 2023; 253:127156. [PMID: 37778575 DOI: 10.1016/j.ijbiomac.2023.127156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 09/23/2023] [Accepted: 09/28/2023] [Indexed: 10/03/2023]
Abstract
Chitin present in the shell of edible insects is a potential source of chitin, lipids, and proteins, and it exerts various biological activities. Thus far, only a few studies have focused on the use of chitin as a source of high-protein-diet oligosaccharides. The use of insect chitin for the production of high-protein-diet oligosaccharides can lessen the reliance on diet crops. Moreover, although chitin composition in Tenebrio molitor larva, pupa, and adult has been extensively investigated, chitin extraction from T. molitor larval whole body and exuvium has received poor attention. The present study compared the effectiveness of two techniques for extracting high-protein-diet chitin oligosaccharide from an edible insect (T. molitor). Two different extraction sequences of chitin from the larval stage (molitor stage larvae) and adult stage (molitor stage adult) of edible T. molitor were investigated. Two processing steps were employed: (a) deproteinization (DEP) and (b) demineralization (DEM) treatments. Differences in the order, conditions, and period of their application resulted in two different chitin extraction procedures. The viscosity, degree of polymerization, and crystallinity index of the chitin extracted using the two procedures were measured, and its chemical components (chitin, ash, protein, fat, and moisture contents) were determined. T. molitor adults and larvae treated sequentially with DEM-DEP demonstrated the greatest yield of approximately 14.62 % ± 0.15 and 6.096 % ± 0.10 %, respectively. By contrast, when treated sequentially with DEP-DEM, the recorded yields were 10.96 % ± 0.18 and 5.31 % ± 0.38, respectively. Differences in the degree of deacetylation between both methods were observed. Additionally, Fourier transform infrared spectroscopy and X-ray diffractometry of the extracted chitin along with a commercial sample revealed consistent chain conformation, mean hydrogen bonding, and crystallinity index. In this way, residues produced by farmed edible insects can be recovered and used as a novel source of chitin.
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Affiliation(s)
- Manel Chalghaf
- Laboratory of Aromatic and Medicinal Plants, Centre of Biotechnology of Borj-Cedria, Tunisia
| | - Khaled Charradi
- Nanomaterials and Systems for Renewable Energy Laboratory, Research and Technology Centre of Energy, Technoparc Borj Cedria, BP 095 Hammam Lif, Tunisia
| | - Riadh Ksouri
- Laboratory of Aromatic and Medicinal Plants, Centre of Biotechnology of Borj-Cedria, Tunisia
| | - Qana A Alsulami
- Chemistry Department, Faculty of Science, King Abdulaziz University, 21589 Jeddah, Saudi Arabia
| | - Atef Jaouani
- University of Tunis El Manar, Laboratory of Bioresources, Environment and Biotechnology (LR22ES04), Higher Institute of Applied Biological Sciences of Tunisia (ISSBAT), 9 Street Zouheir Essafi CP 1006, Tunisia
| | - Sherif M A S Keshk
- University of Tunis El Manar, Laboratory of Bioresources, Environment and Biotechnology (LR22ES04), Higher Institute of Applied Biological Sciences of Tunisia (ISSBAT), 9 Street Zouheir Essafi CP 1006, Tunisia
| | - El Akrem Hayouni
- Laboratory of Aromatic and Medicinal Plants, Centre of Biotechnology of Borj-Cedria, Tunisia.
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Fatima S, Afzal A, Rashid H, Iqbal S, Zafar R, Khalid K, Rauf A, Majeed M, Malik A, Carter CG. Dietary replacement of soybean meal with black soldier fly larvae meal in juvenile Labeo rohita and Catla catla: Effects on growth, nutritional quality, oxidative stress biomarkers and disease resistance. PLoS One 2023; 18:e0294452. [PMID: 37983252 PMCID: PMC10659173 DOI: 10.1371/journal.pone.0294452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 11/01/2023] [Indexed: 11/22/2023] Open
Abstract
This experiment aimed to investigate the effects of partial substitution of crude protein from soybean meal (SBM) with black soldier fly (Hermetia illucens) larvae meal (BSFLM) in juvenile rohu (Labeo rohita) and catla (Catla catla). Four isonitrogenous diets (23% crude protein) were formulated to replace 0% (T0), 40% (T40), 80% (T80) and 100% (T100) crude protein from SBM with BSFLM. Triplicate groups of each species (10 fish per replicate) were fed in an eight week growth experiment. After final sampling (n = 20 fish per dietary group), the remaining fish were exposed to bacterial (Staphylococcus aureus) challenge (0.80 CFU/ml) for 15 days. Rohu fed with BSFLM substituted diets showed significantly higher growth and feed conversion ratio as compared to those in T0. Catla fed with BSFLM substituted diets showed slightly higher growth indices. The growth response of rohu to BSFLM substitution was better than that noted in catla in all groups. The chemical composition, amino acids and fatty acids profile, haematological and biochemical parameters, levels of liver function enzymes measured in T0, T40, T80 and T100 were similar between four dietary groups in both species. However, the maximum value of cholesterol and triglycerides were noted in T100 both in catla and rohu. The values of lauric acid, α-linolenic acid, decosahexanoic acid, n3:n6 fatty acids ratio progressively increased with dietary increase of BSFLM in both species. At end of the growth experiment, the levels of catalase, superoxide dismutase and lysozyme increased linearly with the inclusion of BSFLM in both species while malondialdehyde showed similar values between different groups. However, catalase, and superoxide dismutase increased (T0
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Affiliation(s)
- Shafaq Fatima
- Department of Biological Sciences, Purdue University Fort Wayne, IN, United States of America
| | - Ayesha Afzal
- Department of Zoology, Lahore College for Women University, Jail Road, Lahore, Punjab, Pakistan
| | - Hamna Rashid
- Department of Zoology, Lahore College for Women University, Jail Road, Lahore, Punjab, Pakistan
| | - Saba Iqbal
- Department of Zoology, Lahore College for Women University, Jail Road, Lahore, Punjab, Pakistan
| | - Rosheen Zafar
- Department of Zoology, Lahore College for Women University, Jail Road, Lahore, Punjab, Pakistan
| | - Komal Khalid
- Department of Zoology, Lahore College for Women University, Jail Road, Lahore, Punjab, Pakistan
| | - Ayman Rauf
- Department of Zoology, Lahore College for Women University, Jail Road, Lahore, Punjab, Pakistan
| | - Maryam Majeed
- Department of Zoology, Lahore College for Women University, Jail Road, Lahore, Punjab, Pakistan
| | - Aqsa Malik
- Department of Zoology, Lahore College for Women University, Jail Road, Lahore, Punjab, Pakistan
| | - Chris G. Carter
- Institute for Marine and Antarctic Studies (IMAS), University of Tasmania, Hobart, TAS, Australia
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Grossule V, Fang D, Lavagnolo MC. Treatment of wastewater using Black Soldier Fly larvae: Effect of organic concentration and load. J Environ Manage 2023; 338:117775. [PMID: 36996561 DOI: 10.1016/j.jenvman.2023.117775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 03/11/2023] [Accepted: 03/19/2023] [Indexed: 06/19/2023]
Abstract
Recent studies have investigated the use of Black Soldier Fly (BSF) larvae as a promising biological treatment process for high organic content wastewater (i.a. Leachate from municipal solid waste landfill, food processing effluents), achieving both high treatment efficiency and production of secondary resources from larval biomass (i.a. Proteins and lipids). The present study was aimed at achieving a better understanding of how organic concentration and load might influence treatment performance. Larvae were fed with three artificial wastewaters characterised by same organic substances quality (degree of biodegradability and oxidation of the organic content measured respectively as BOD/COD and TOC/COD ratios) but different organic concentrations. Each type of wastewater was tested at four different loads. Treatment performance was assessed by monitoring both larval growth (in terms of weight variation, mortality and prepupation), and variation of wastewater quality and quantity to determine organic substrate consumption (measured in terms of Total Organic Carbon, TOC). Larval starvation was observed in all tests when TOC concentrations dropped below approx. 1000 mg C/L, which, for the tested wastewater, could be assumed as the limit value for adopting BSF larvae process. Substrate concentration in the feed (mgC/L) influenced larval growth (in terms of maximum wet weight, prepupation and mortality) only when organic load was above 10 mgC/larva: the higher the load, the higher the positive impact of the substrate concentration. On the contrary, the specific substrate consumption rate (vS, mgC/larva/day) appeared not to be influenced by substrate concentration but only by the organic load, with a Michaelis Menten like relationship. Accordingly, substrate load can be assumed as a design parameter for BSF treatment process, while substrate concentration might only influence potential resource recovery from larval biomass.
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Affiliation(s)
- Valentina Grossule
- DICEA, Department of Civil, Architectural and Environmental Engineering, University of Padova. Via Marzolo 9, 35131 Padova, Italy.
| | - Ding Fang
- School of Environment, Tsinghua University, Beijing, 100084, PR China
| | - Maria Cristina Lavagnolo
- DICEA, Department of Civil, Architectural and Environmental Engineering, University of Padova. Via Marzolo 9, 35131 Padova, Italy
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Zhang F, Sun Z, Li X, Kong B, Sun F, Cao C, Chen Q, Zhang H, Liu Q. Ultrasound-assisted alkaline extraction of protein from Tenebrio molitor larvae: Extraction kinetics, physiochemical, and functional traits. Ultrason Sonochem 2023; 95:106379. [PMID: 36965311 PMCID: PMC10060266 DOI: 10.1016/j.ultsonch.2023.106379] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 03/16/2023] [Accepted: 03/18/2023] [Indexed: 06/18/2023]
Abstract
Currently, as a promising alternative protein source, the interest of edible insect protein has been continuously increased. However, the extraction processing had distinct effects on the physicochemical properties and functionalities of this novel and sustainable protein. In this study, Tenebrio molitor larvae protein (TMLP) was extracted via ultrasound (US)-assisted alkaline extraction. The changes of extraction kinetics, physicochemical characteristics, and functional properties of TMLP as a function of US time (10, 20, 30, 40, 50 min) were investigated. The results showed that 30 min US treatment rendered the maximum protein yield (60.04 %) (P < 0.05). Meanwhile, Peleg's model was considered a suitable model to represent the extraction kinetics of TMLP, with a correlation coefficient of 0.9942. Moreover, the protein secondary structure, particle size, and amino acid profiles of TMLP were changed under the US-assisted alkaline extraction process. Additionally, a significant improvement of the functional properties of TMLP extracted with this method was observed compared to traditional alkaline extraction. In conclusion, the present work suggests that US-assisted alkaline extraction could be considered as a potential method to improve the protein yield, quality profiles, and functional properties of TMLP.
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Affiliation(s)
- Fengxue Zhang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Zhigang Sun
- Sharable Platform of Large-Scale Instruments & Equipments, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Xin Li
- Sharable Platform of Large-Scale Instruments & Equipments, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Baohua Kong
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Fangda Sun
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Chuanai Cao
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Qian Chen
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Hongwei Zhang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Qian Liu
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China; Heilongjiang Green Food Science & Research Institute, Harbin, Heilongjiang 150028, China.
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11
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Lievens S, Vervoort E, Bruno D, Van der Donck T, Tettamanti G, Seo JW, Poma G, Covaci A, De Smet J, Van Der Borght M. Ingestion and excretion dynamics of microplastics by black soldier fly larvae and correlation with mouth opening size. Sci Rep 2023; 13:4341. [PMID: 36928596 PMCID: PMC10020535 DOI: 10.1038/s41598-023-31176-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 03/07/2023] [Indexed: 03/18/2023] Open
Abstract
Black soldier fly (BSF) larvae (Hermetia illucens) are voracious feeders that can be reared on food waste streams originating from the food industry and retailers. Because these food waste streams are automatically being unpacked in substantial amounts, they can contain microplastics, potentially jeopardising the larvae's chemical safety when applied as compound feed ingredients. During this study, the dynamics of ingestion and excretion of microplastics by BSF larvae reared on substrates containing different contents (wMP = 0.00, 0.01, 0.10, 0.50, 1.00, 3.00%) of fluorescent blue-labelled microplastics (median size, Dv(50) = 61.5 µm) were monitored. To correlate the particle size with their uptake, larval mouth opening dimensions were measured during the rearing process. In conclusion, it appeared that ingestion of microplastics by BSF larvae depends on initial particle load, mouth size, and consequently also age. The larvae took up between 131 (wMP = 0.01%) and 4866 (wMP = 3.00%) particles leading to bioaccumulation factors (BAF) between 0.12 (wMP = 3.00%) and 1.07 (wMP = 0.01%). Larvae also appeared to excrete the microplastics, lowering the BAFs to values between 0.01 (wMP = 3.00%) and 0.54 (wMP = 0.01%).
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Affiliation(s)
- Siebe Lievens
- Department of Microbial and Molecular Systems, Faculty of Engineering Technology, Research Group for Insect Production and Processing, KU Leuven - Campus Geel, Kleinhoefstraaat 4, 2440, Geel, Belgium
- Department of Pharmaceutical Sciences, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, Toxicological Centre, University of Antwerp - Campus Drie Eiken, Universiteitsplein 1, 2610, Wilrijk, Belgium
| | - Evelynn Vervoort
- Department of Microbial and Molecular Systems, Faculty of Engineering Technology, Research Group for Insect Production and Processing, KU Leuven - Campus Geel, Kleinhoefstraaat 4, 2440, Geel, Belgium
| | - Daniele Bruno
- Department of Biotechnology and Life Sciences, University of Insubria, 21100, Varese, Italy
| | - Tom Van der Donck
- Department of Materials Engineering, Faculty of Engineering Science, KU Leuven - Campus Arenberg, 3001, Leuven, Belgium
| | - Gianluca Tettamanti
- Department of Biotechnology and Life Sciences, University of Insubria, 21100, Varese, Italy
- Interuniversity Center for Studies On Bioinspired Agro-Environmental Technology (BAT Center), University of Napoli Federico II, 80055, Portici, Italy
| | - Jin Won Seo
- Department of Materials Engineering, Faculty of Engineering Science, KU Leuven - Campus Arenberg, 3001, Leuven, Belgium
| | - Giulia Poma
- Department of Pharmaceutical Sciences, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, Toxicological Centre, University of Antwerp - Campus Drie Eiken, Universiteitsplein 1, 2610, Wilrijk, Belgium
| | - Adrian Covaci
- Department of Pharmaceutical Sciences, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, Toxicological Centre, University of Antwerp - Campus Drie Eiken, Universiteitsplein 1, 2610, Wilrijk, Belgium
| | - Jeroen De Smet
- Department of Microbial and Molecular Systems, Faculty of Engineering Technology, Research Group for Insect Production and Processing, KU Leuven - Campus Geel, Kleinhoefstraaat 4, 2440, Geel, Belgium
| | - Mik Van Der Borght
- Department of Microbial and Molecular Systems, Faculty of Engineering Technology, Research Group for Insect Production and Processing, KU Leuven - Campus Geel, Kleinhoefstraaat 4, 2440, Geel, Belgium.
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12
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Zhang F, Yue Q, Li X, Kong B, Sun F, Cao C, Zhang H, Liu Q. Mechanisms underlying the effects of ultrasound-assisted alkaline extraction on the structural properties and in vitro digestibility of Tenebrio molitor larvae protein. Ultrason Sonochem 2023; 94:106335. [PMID: 36821935 PMCID: PMC9982000 DOI: 10.1016/j.ultsonch.2023.106335] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 02/12/2023] [Accepted: 02/13/2023] [Indexed: 05/13/2023]
Abstract
Edible insects have been considered as a sustainable and novel protein source to replace animal-derived proteins. The present study aimed to extract Tenebrio molitor larvae proteins (TMP) using ultrasound-assisted alkaline extraction (UAE). Effects of different UAE times (10, 20, 30, 40, and 50 min) on the structural properties and in vitro digestibility of TMP were comparatively investigated with the traditional alkaline extraction method. The results revealed that ultrasonication could effectively alter the secondary/tertiary structures and thermal stability of TMP during UAE. The molecular unfolding and subsequent aggregation of TMP during UAE were mainly attributed to the formation of disulfide bonds and hydrophobic interactions. Moreover, TMP extracted by UAE had higher in vitro digestibility and digestion kinetics than those extracted without ultrasound, and the intermediate UAE time (30 min) was the optimal ultrasound parameter. However, longer UAE times (40 and 50 min) lowered the digestibility of TMP due to severe protein aggregation. The present work provides a potential strategy for the extraction of TMP with higher nutritional values.
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Affiliation(s)
- Fengxue Zhang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Qiang Yue
- Heilongjiang Open University, Harbin, Heilongjiang 150080, China
| | - Xin Li
- Sharable Platform of Large-Scale Instruments & Equipments, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Baohua Kong
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Fangda Sun
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Chuanai Cao
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Hongwei Zhang
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Qian Liu
- College of Food Science, Northeast Agricultural University, Harbin, Heilongjiang 150030, China; Heilongjiang Green Food Science & Research Institute, Harbin, Heilongjiang 150028, China.
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Xian C, Lai D, Liu J, Li S, Cao J, Chen K, Liang D, Fu N, Wang Y, Xiao M. Protein-enriched extracts from housefly (Musca domestica) maggots alleviates atherosclerosis in apolipoprotein E-deficient mice by promoting bile acid production and consequent cholesterol consumption. Arch Insect Biochem Physiol 2022; 111:e21951. [PMID: 35791048 DOI: 10.1002/arch.21951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 06/23/2022] [Accepted: 06/27/2022] [Indexed: 06/15/2023]
Abstract
Currently, atherosclerosis control is important to prevent future heart attacks or strokes. Protein-enriched extract (PE) from housefly maggots (Musca domestica) can inhibit the development of atherosclerosis partially through its antioxidant effects. Whether PE exerts other anti-atherosclerosis functions remains unclear. Here, PE was found to simultaneously promote cholesterol metabolism effects in apolipoprotein E knockout (ApoE-/- ) mice. Bile acid synthesis plays a key role in regulating cholesterol homeostasis in atherosclerosis. Whether PE alleviates atherosclerosis by promoting bile acid production and consequent cholesterol consumption was further explored. First, 8-week-old male ApoE-/- mice were recruited and fed on a cholesterol-enriched diet. After 8 weeks, these mice were divided into three groups and received gavage administration of PE, simvastatin, and saline for another 8 weeks. Atherosclerosis severity was then assessed. Real-time quantitative polymerase chain reaction and western blot were employed to determine the expression of hepatic ATP-binding cassette transporter A1 (ABCA1), liver X receptor α (LXRα), and peroxisome proliferator-activated receptor-γ (PPAR-γ). Serum levels of high-density lipoprotein-cholesterol (HDL), low-density lipoprotein-cholesterol (LDL), and total cholesterol (TC) were determined by enzyme-linked immunoassay. Results revealed that PE reversed the formation of atherosclerotic lesion; increased the expression of PPAR-γ, LXRα, and ABCA1; increased the amount of bile flow and total bile acid; reduced the serum level of LDL and TC; and increased the level of HDL. In conclusion, enhancement on bile acid production and consequent cholesterol consumption may partially contribute to the anti-atherosclerotic effects of PE. The reversal of PPARγ-LXRα-ABCA1 signaling pathway may be involved in this process.
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Affiliation(s)
- Cuiling Xian
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Disheng Lai
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Jiaming Liu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Shixin Li
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Junlin Cao
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Kengyu Chen
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Dajun Liang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Nanlin Fu
- Department of Traditional Chinese Medicine, The Second Affiliated Hospital of Guangdong Pharmaceutical University, Yunfu, Guangdong, China
| | - Yan Wang
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
| | - Mingzhu Xiao
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
- Key Laboratory of Pharmaceutical Bioactive Substances, Guangdong Pharmaceutical University, Guangzhou, Guangdong, China
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14
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Ceccotti C, Bruno D, Tettamanti G, Branduardi P, Bertacchi S, Labra M, Rimoldi S, Terova G. New value from food and industrial wastes - Bioaccumulation of omega-3 fatty acids from an oleaginous microbial biomass paired with a brewery by-product using black soldier fly (Hermetia illucens) larvae. Waste Manag 2022; 143:95-104. [PMID: 35240451 DOI: 10.1016/j.wasman.2022.02.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 02/21/2022] [Accepted: 02/23/2022] [Indexed: 06/14/2023]
Abstract
Research on bioconversion based on insects is intensifying as it addresses the problem of reducing and reusing food and industrial waste. To reach this goal, we need to find more means of pairing waste to insects. With this goal, brewers' spent grains (BSG) - a food waste of the brewing industry - paired with the oleaginous biomass of the thraustochytrid Schizochytrium limacinum cultivated on crude glycerol - a major waste of biodiesel production - were successfully used to grow Hermetia illucens larvae. Combining BSG and S. limacinum in the diet in an attempt to design the lipid profile of H. illucens larvae to contain a higher percentage of omega-3 fatty acids is novel. Insect larvae were grown on three different substrates: i) standard diet for Diptera (SD), ii) BSG, and iii) BSG + 10% S. limacinum biomass. The larvae and substrates were analyzed for fatty acid composition and larval growth was measured until 25% of insects reached the prepupal stage. Our data showed that including omega-3-rich S. limacinum biomass in the BSG substrate promoted an increase in larval weight compared to larvae fed on SD or BSG substrates. Furthermore, it was possible, albeit in a limited way, to incorporate omega-3 fatty acids, principally docosahexaenoic acid (DHA) from BSG + S. limacinum substrate containing 20% of DHA into the larval fat (7% DHA). However, H. illucens with this level of DHA may not be suitable if the aim is to get larvae with high omega-3 lipids to feed carnivorous fish.
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Affiliation(s)
- Chiara Ceccotti
- Department of Biotechnology and Life Sciences, University of Insubria, Via J.H. Dunant, 3, 21100 Varese, Italy
| | - Daniele Bruno
- Department of Biotechnology and Life Sciences, University of Insubria, Via J.H. Dunant, 3, 21100 Varese, Italy
| | - Gianluca Tettamanti
- Department of Biotechnology and Life Sciences, University of Insubria, Via J.H. Dunant, 3, 21100 Varese, Italy; BAT Center - Interuniversity Center for Studies on Bioinspired Agro-Environmental Technology, University of Napoli "Federico II", 80055 Portici, NA, Italy
| | - Paola Branduardi
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, Italy
| | - Stefano Bertacchi
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, Italy
| | - Massimo Labra
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, Italy
| | - Simona Rimoldi
- Department of Biotechnology and Life Sciences, University of Insubria, Via J.H. Dunant, 3, 21100 Varese, Italy
| | - Genciana Terova
- Department of Biotechnology and Life Sciences, University of Insubria, Via J.H. Dunant, 3, 21100 Varese, Italy.
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Dhara K, Chukwuka AV, Saha S, Saha NC, Faggio C. Effects of short-term selenium exposure on respiratory activity and proximate body composition of early-life stages of Catla catla, Labeo rohita and Cirrhinus mrigala. Environ Toxicol Pharmacol 2022; 90:103805. [PMID: 34974167 DOI: 10.1016/j.etap.2021.103805] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 12/25/2021] [Accepted: 12/28/2021] [Indexed: 06/14/2023]
Abstract
Metal exposure impairs respiration, increases metabolic demand, and reduces energy storage/fitness in aquatic species. Respiratory impairment and energy storage was examined in acute selenium-exposed Indian major carps, Catla catla, Labeo rohita and Cirrhinus mrigala fry and were correlated with exposure concentrations. Toxicity effects were determined in a renewal bioassay using 96 h lethal selenium concentrations. Species sensitivity distribution (SSD) was also used to derive predicted no-effect concentrations, toxicity exposure ratios, for selenium exposures to early-life fish stages. Mortality was proportional with increasing concentrations. Oxygen consumption and lipid content compared to moisture and ash and of all protein content in tissues of C. catla and C. mrigala indicates that lowered oxygen consumption is directly predictive of lowered lipid content and selenium-induced hypoxia impacts the energy/nutritional status of the early-life stage of carp. This cross-taxa comparison will have major implications for advancing impact assessment and allow better targeting of species for conservation measures.
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Affiliation(s)
- Kishore Dhara
- Freshwater Fisheries Research & Training Centre, Directorate of Fisheries, Govt. of West Bengal, Kulia, Kalyani, Nadia 741 235, West Bengal, India
| | - Azubuike V Chukwuka
- National Environmental Standards and Regulations Enforcement Agency (NESREA), Osogbo, Osun State, Nigeria
| | - Shubhajit Saha
- Department of Zoology, Sundarban Hazi Desarat College, Pathankhali, South 24 Parganas 743611, West Bengal, India
| | - Nimai Chandra Saha
- Fishery and Ecotoxicology Research Laboratory, Department of Zoology, University of Burdwan, Purba Barddhaman, West Bengal, India
| | - Caterina Faggio
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy.
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16
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Zhang X, Shang Y, Ren L, Qu H, Zhu G, Guo Y. A Study of Cuticular Hydrocarbons of All Life Stages in Sarcophaga peregrina (Diptera: Sarcophagidae). J Med Entomol 2022; 59:108-119. [PMID: 34668022 DOI: 10.1093/jme/tjab172] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Indexed: 02/05/2023]
Abstract
Sarcophaga peregrina (Robineau-Desvoidy, 1830), a synanthropic flesh fly species found in different parts of the world, is of medical and forensic importance. Traditional methods of inferring developmental age rely on the life stage of insects and morphological changes. However, once the larvae reach the pupal and adult stage, morphological changes would become barely visible, so that the classic method would be invalid. Here, we studied the cuticular hydrocarbon profile of S. peregrina of the whole life cycle from larval stage to adult stage by GC-MS. Sixty-three compounds with carbon chain length ranging from 8 to 36 were detected, which could be categorized into four classes: n-alkanes, branched alkanes, alkenes, and unknowns. As developmental increased, branched alkanes dominant, and the content of high-molecular-weight hydrocarbons is variable, especially for 2-methyl C19, DiMethyl C21, docosane (C22), and tricosane (C23). This study shows that the composition of CHC could be used to determine the developmental age of S. peregrina and aid in postmortem interval estimations in forensic science.
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Affiliation(s)
- Xiangyan Zhang
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
| | - Yanjie Shang
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
| | - Lipin Ren
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
| | - Hongke Qu
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medicine Sciences, Central South University, Changsha, Hunan, China
| | - Guanghui Zhu
- Department of Forensic Medicine, Shantou University Medical College, Shantou, China
| | - Yadong Guo
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
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Lee SH, Goo TW, Yun EY. Allomyrina dichotoma larval extract has protective effects against gut permeability of dextran sulfate sodium-fed Drosophila by E-cadherin and armadillo. J Ethnopharmacol 2021; 279:113786. [PMID: 33421598 DOI: 10.1016/j.jep.2021.113786] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 12/28/2020] [Accepted: 01/05/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Larvae of the rhinoceros beetle (Allomyrina dichotoma) (ADL) are used ethnopharmacologically to treat gut-related disorders in Korea and China since 1596 and are also approved as a safe novel food with high nutritional value. AIM OF THE STUDY We investigated the protective effects of ADL extract against leaky gut disease using a Drosophila model and sought to elucidate the underlying biological mechanisms. MATERIALS AND METHODS We examined the protective effects of ADL extract (2 mg/mL) against the leaky gut disease using a dextran sulfate sodium (DSS)-induced leaky gut Drosophila melanogaster model. RESULTS We found that oral administration of ADL extracts significantly increase the survival rate of DSS-fed Drosophila. Under conditions of DSS-induced gut damage, ADL extract reduced gut cell apoptosis and gut permeability, resulting in the maintenance of gut tissue homeostasis. Furthermore, we observed that oral administration of ADL extract can induce high levels of E-cadherin gene expression and also restored the original membrane localization of DSS-disrupted E-cadherin contiguous with the armadillo. CONCLUSION We concluded that ADL extract plays an important role in maintaining gut homeostasis through the up-regulation of E-cadherin and that it may have a protective effect against leaky gut syndrome.
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Affiliation(s)
- Seung Hun Lee
- Department of Integrative Biological Sciences and Industry, Sejong University, Seoul, 05006, South Korea
| | - Tae-Won Goo
- Department of Biochemistry, School of Medicine, Dongguk University, Gyeongju, Kyeongbuk, 38066, South Korea
| | - Eun-Young Yun
- Department of Integrative Biological Sciences and Industry, Sejong University, Seoul, 05006, South Korea.
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18
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Šolínová V, Sázelová P, Mášová A, Jiráček J, Kašička V. Application of Capillary and Free-Flow Zone Electrophoresis for Analysis and Purification of Antimicrobial β-Alanyl-Tyrosine from Hemolymph of Fleshfly Neobellieria bullata. Molecules 2021; 26:molecules26185636. [PMID: 34577107 PMCID: PMC8469924 DOI: 10.3390/molecules26185636] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/14/2021] [Accepted: 09/15/2021] [Indexed: 11/21/2022] Open
Abstract
The problem of a growing resistance of bacteria and other microorganisms to conventional antibiotics gave rise to a search for new potent antimicrobial agents. Insect antimicrobial peptides (AMPs) seem to be promising novel potential anti-infective therapeutics. The dipeptide β-alanyl-tyrosine (β-Ala-Tyr) is one of the endogenous insect toxins exhibiting antibacterial activity against both Gram-negative and Gram-positive bacteria. Prior to testing its other antimicrobial activities, it has to be prepared in a pure form. In this study, we have developed a capillary zone electrophoresis (CZE) method for analysis of β-Ala-Tyr isolated from the extract of the hemolymph of larvae of the fleshfly Neobellieria bullata by reversed-phase high-performance liquid chromatography (RP-HPLC). Based on our previously described correlation between CZE and free-flow zone electrophoresis (FFZE), analytical CZE separation of β-Ala-Tyr and its admixtures have been converted into preparative purification of β-Ala-Tyr by FFZE with preparative capacity of 45.5 mg per hour. The high purity degree of the β-Ala-Tyr obtained by FFZE fractionation was confirmed by its subsequent CZE analysis.
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Mohamed H, Marusich E, Afanasev Y, Leonov S. Fatty Acids-Enriched Fractions of Hermetia illucens (Black Soldier Fly) Larvae Fat Can Combat MDR Pathogenic Fish Bacteria Aeromonas spp. Int J Mol Sci 2021; 22:ijms22168829. [PMID: 34445533 PMCID: PMC8396364 DOI: 10.3390/ijms22168829] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 08/03/2021] [Accepted: 08/11/2021] [Indexed: 11/29/2022] Open
Abstract
Aeromonas spp. cause many diseases in aquaculture habitats. Hermetia illucens (Hi) larvae were used as feed-in aquacultures and in eradicating pathogenic fish bacteria. In the present study, we applied consecutive extractions of the same biomass of BSFL fat using the acidic water–methanol solution. The major constituents of the sequential extracts (SEs) were free fatty acids (FFAs), and fatty acids derivatives as identified by gas chromatography spectrometry (GC-MS). Our improved procedure enabled gradual enrichment in the unsaturated fatty acids (USFAs) content in our SEs. The present study aimed to compare the composition and antimicrobial properties of SEs. Among actual fish pathogens, A. hydrophila and A. salmonicida demonstrated multiple drug resistance (MDR) against different recommended standard antibiotics: A. salmonicida was resistant to six, while A. hydrophila was resistant to four antibiotics from ten used in the present study. For the first time, we demonstrated the high dose-dependent antibacterial activity of each SE against Aeromonas spp., especially MDR A. salmonicida. The bacteriostatic and bactericidal (MIC/MBC) activity of SEs was significantly enhanced through the sequential extractions. The third sequential extract (AWME3) possessed the highest activity against Aeromonas spp.: inhibition zone diameters were in the range (21.47 ± 0.14–20.83 ± 0.22 mm) at a concentration of 40 mg/mL, MIC values ranged between 0.09 and 0.38 mg/mL for A. hydrophila and A. salmonicida, respectively. AWME3 MBC values recorded 0.19 and 0.38 mg/mL, while MIC50 values were 0.065 ± 0.004 and 0.22 ± 0.005 mg/mL against A. hydrophila and A. salmonicida, respectively. Thus, the larvae fat from Hermitia illucens may serve as an excellent reservoir of bioactive molecules with good capacity to eradicate the multidrug-resistant bacteria, having promising potential for practical application in the aquaculture field.
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Affiliation(s)
- Heakal Mohamed
- Moscow Institute of Physics and Technology, School of Biological and Medical Physics, 141700 Dolgoprudny, Russia; (H.M.); (Y.A.)
| | - Elena Marusich
- Moscow Institute of Physics and Technology, School of Biological and Medical Physics, 141700 Dolgoprudny, Russia; (H.M.); (Y.A.)
- Correspondence: (E.M.); (S.L.); Tel.: +7-965-247-1982 (E.M.); +7-915-055-5643 (S.L.)
| | - Yuriy Afanasev
- Moscow Institute of Physics and Technology, School of Biological and Medical Physics, 141700 Dolgoprudny, Russia; (H.M.); (Y.A.)
| | - Sergey Leonov
- Moscow Institute of Physics and Technology, School of Biological and Medical Physics, 141700 Dolgoprudny, Russia; (H.M.); (Y.A.)
- Institute of Cell Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia
- Correspondence: (E.M.); (S.L.); Tel.: +7-965-247-1982 (E.M.); +7-915-055-5643 (S.L.)
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20
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He W, Li S, He K, Sun F, Mu L, Li Q, Yi J, He Z, Liu Z, Wu X. Identification of potential allergens in larva, pupa, moth, silk, slough and feces of domestic silkworm (Bombyx mori). Food Chem 2021; 362:130231. [PMID: 34237653 DOI: 10.1016/j.foodchem.2021.130231] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 05/23/2021] [Accepted: 05/26/2021] [Indexed: 11/18/2022]
Abstract
The silkworm (Bombyx mori) is an important economic insect that can be used as food in many countries in Asia. However, silkworms and their metabolites are an important source of allergens, which can induce severe allergic reactions. So far, there are no systematic studies on the potential allergens in silkworm and its metabolites. These studies have important guiding significance for the prevention, diagnosis, and treatment of silkworm allergy. The aim of this study was to identify the potential allergens from larva, pupa, moth, silk, slough and feces of silkworm and analyze the sequence homology of silkworm allergens with other allergens identified in the Allergenonline database. We have found 45 potential allergens in silkworm. The results of the homology comparison suggested that silkworm allergens likely cross-react with those of Dermatophagoides farinae, Aedes aegypti, Tyrophagus putrescentiae, Triticum aestivum and Malassezia furfur.
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Affiliation(s)
- Weiyi He
- Department of Respirology & Allergy. Third Affiliated Hospital of Shenzhen University, Shenzhen 518020, Guangdong Province, PR China; School of Public Health, Health Science Center, Shenzhen University, Shenzhen 518060, Guangdong Province, PR China
| | - Shuiming Li
- College of Life Science, Shenzhen University, Shenzhen 518060, Guangdong Province, PR China
| | - Kan He
- School of Public Health, Health Science Center, Shenzhen University, Shenzhen 518060, Guangdong Province, PR China
| | - Fan Sun
- School of Public Health, Health Science Center, Shenzhen University, Shenzhen 518060, Guangdong Province, PR China
| | - Lixia Mu
- Sericulture and Agro-Processing Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510610, Guangdong Province, PR China
| | - Qingrong Li
- Sericulture and Agro-Processing Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510610, Guangdong Province, PR China
| | - Jiang Yi
- School of Public Health, Health Science Center, Shenzhen University, Shenzhen 518060, Guangdong Province, PR China
| | - Zhendan He
- School of Public Health, Health Science Center, Shenzhen University, Shenzhen 518060, Guangdong Province, PR China
| | - Zhigang Liu
- Department of Respirology & Allergy. Third Affiliated Hospital of Shenzhen University, Shenzhen 518020, Guangdong Province, PR China; School of Public Health, Health Science Center, Shenzhen University, Shenzhen 518060, Guangdong Province, PR China.
| | - Xuli Wu
- School of Public Health, Health Science Center, Shenzhen University, Shenzhen 518060, Guangdong Province, PR China.
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21
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Żołnierczyk AK, Szumny A. Sensory and Chemical Characteristic of Two Insect Species: Tenebrio molitor and Zophobas morio Larvae Affected by Roasting Processes. Molecules 2021; 26:molecules26092697. [PMID: 34064526 PMCID: PMC8124484 DOI: 10.3390/molecules26092697] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 05/01/2021] [Accepted: 05/02/2021] [Indexed: 11/16/2022] Open
Abstract
The volatile compounds from insects (Tenebrio molitor and Zophobas morio larvae) roasted at 160, 180, or 200 °C and fed with potato starch or blue corn flour were isolated by solid-phase microextraction (SPME), and identified by gas chromatography–mass spectrometry (GC-MS). In the tested material, 48 volatile compounds were determined. Among them, eight are pyrazines, aroma compounds that are formed in food products during thermal processing due to the Maillard reaction. Eleven of the identified compounds influenced the roast, bread, fat, and burnt aromas that are characteristic for traditional baked dishes (meat, potatoes, bread). Most of them are carbonyl compounds and pyrazines. To confirm the contribution of the most important odorants identified, their odor potential activity values (OAVs) and %OAV were calculated. The highest value was noted for isobuthylpyrazine, responsible for roast aroma (%OAV > 90% for samples roasted at lower temperatures), and 2,5-dimethylpyrazine, responsible for burnt aroma (%OAV > 20% for samples roasted at the highest temperature). According to the study, the type of feed did not significantly affect the results of the sensory analysis of roasted insects. The decisive influence was the roasting temperature. The highest scores were achieved for Tenebrio molitor larvae heat-treated at 160 °C.
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22
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Opatovsky I, Vitenberg T, Jonas-Levi A, Gutman R. Does Consumption of Baker's Yeast (Saccharomyces cerevisiae) by Black Soldier Fly (Diptera: Stratiomyidae) Larvae Affect Their Fatty Acid Composition? J Insect Sci 2021; 21:5. [PMID: 33974082 PMCID: PMC8355454 DOI: 10.1093/jisesa/ieab031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Indexed: 06/12/2023]
Abstract
Fatty acids are important compounds for insects, but the requirements for essential fatty acids may differ between insect species. Most of the fatty acids are acquired through the insect's diet; therefore, supplementing the diet with baker's yeast (Saccharomyces cerevisiae Meyen ex E.C. Hansen), which produces unsaturated fatty acids, was predicted to affect the fatty acid composition of the insect. The tested insect was the black soldier fly (BSF) (Hermetia illucens L.), that is used as a source of protein and fat in feed. Therefore, there is importance for BSF larvae (BSFL) nutritional composition, especially the unsaturated fatty acids content, which is one of the nutritional limitations for mammalian diets. The dominant fatty acids of the tested BSFL were the saturated fatty acids: lauric, myristic, and palmitic acids, as found in other BSF studies. Oleic acid (c18:1) and linoleic acid (C18:2) were the abundant unsaturated fatty acids in the BSFL. The proportion of linoleic acid was higher in the substrate with the supplemental yeast; however, this did not affect its proportion in the larvae. The higher proportion of linoleic acid may have been exploited as a source for production of saturated lauric acid. Therefore, providing unsaturated fatty acids to the substrate through supplemental baker's yeast is not the most efficient way to increase the proportion of unsaturated fatty acids in the larvae.
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Affiliation(s)
- Itai Opatovsky
- Laboratory of Insect Nutrition and metabolism, The Department of Nutrition and Natural Products, MIGAL - Galilee Research Centre, Kiryat Shmona, Israel
- Department of Animal Science, Faculty of Sciences and Technology, Tel-Hai College, Upper Galilee, Israel
| | - Tzach Vitenberg
- Laboratory of Insect Nutrition and metabolism, The Department of Nutrition and Natural Products, MIGAL - Galilee Research Centre, Kiryat Shmona, Israel
| | - Adi Jonas-Levi
- Department of Food Sciences, Tel-Hai College, Upper Galilee, Israel
| | - Roee Gutman
- Department of Animal Science, Faculty of Sciences and Technology, Tel-Hai College, Upper Galilee, Israel
- Laboratory of Integrative Physiology (LIP), The Department of Nutrition and Natural Products, MIGAL - Galilee Research Centre, Kiryat Shmona, Israel
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23
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Brown CT, Yahn JM, Karasov WH. Warmer temperature increases toxicokinetic elimination of PCBs and PBDEs in Northern leopard frog larvae (Lithobates pipiens). Aquat Toxicol 2021; 234:105806. [PMID: 33819675 DOI: 10.1016/j.aquatox.2021.105806] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 03/03/2021] [Accepted: 03/05/2021] [Indexed: 05/14/2023]
Abstract
We studied the temperature dependence of accumulation and elimination of two polychlorinated biphenyls (PCBs; PCB-70 and PCB-126) and a commercial mixture of congeners of polybrominated diphenyl ethers (PBDEs; DE-71™)) in Northern leopard frog (Lithobates pipiens) tadpoles. We reared tadpoles at 18, 23, or 27 °C for 5.3 or up to 13.6 weeks (longer at cooler temperature where development is slower) on diets containing the toxicants, each at several different toxicant concentrations, and compared tissue concentrations as a function of food concentration and rearing temperature. Following > 1 month of accumulation, tissue concentrations of all three toxicants in exposed tadpoles were linearly related to dietary concentrations as expected for first order kinetics, with no significant effect of rearing temperature.We also raised free-swimming L. pipiens tadpoles for 14 days on foods containing either toxicant at 18 or 27 °C during an accumulation phase, and then during depuration (declining toxicant) phase of 14 days we provided food without toxicants and measured the decline of toxicants in tadpole tissue. All the congeners were eliminated faster at warmer rearing temperature, as expected. Using Arrhenius' equation, we calculated that the apparent activation energy for elimination of both PCB congeners by tadpoles was 1.21 eV (95% confidence interval 0.6-1.8 eV). We discuss how this value was within the range of estimates for metabolic reactions generally (range 0.2 - 1.2 eV), which might include metabolic pathways for biotransformation and elimination of PCBs. Furthermore, we discuss how the lack of an effect of rearing temperature on tadpole near-steady-state tissue residue levels suggests that faster elimination at the warmer temperature was balanced by faster uptake, which is plausible considering the similar temperature sensitivities (i.e., activation energies) of all these processes. Although interactions between toxicants and temperature can be complex and likely toxicant-dependent, it is plausible that patterns observed in tadpoles might apply to other aquatic organisms. Published data on depuration in 11 fish species eliminating 8 other organic toxicants indicated that they also had similar apparent activation energy for elimination (0.82 ± 0.12 eV; 95% confidence interval 0.56 - 1.08 eV), even though none of those studied toxicants were PCBs or PBDEs. Additional research on toxicant-temperature interactions can help improve our ability to predict toxicant bioaccumulation in warming climate scenarios.
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Affiliation(s)
- Cherry T Brown
- Department of Forest and Wildlife Ecology, University of Wisconsin-Madison, Madison, WI 53706, United States
| | - Jeremiah M Yahn
- Department of Integrative Biology, University of Wisconsin-Madison, Madison, WI 53706, United States
| | - William H Karasov
- Department of Forest and Wildlife Ecology, University of Wisconsin-Madison, Madison, WI 53706, United States.
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24
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Vilharva KN, Leite DF, dos Santos HF, Antunes KÁ, da Rocha PDS, Campos JF, Almeida CV, Macedo MLR, Silva DB, Ramalho de Oliveira CF, dos Santos EL, de Picoli Souza K. Rhynchophorus palmarum (Linnaeus, 1758) (Coleoptera: Curculionidae): Guarani-Kaiowá indigenous knowledge and pharmacological activities. PLoS One 2021; 16:e0249919. [PMID: 33914744 PMCID: PMC8084164 DOI: 10.1371/journal.pone.0249919] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 03/28/2021] [Indexed: 01/22/2023] Open
Abstract
Zootherapy is a traditional secular practice among the Guarani-Kaiowá indigenous ethnic group living in Mato Grosso do Sul, Brazil. My people use the oil extracted from larvae of the snout beetle Rhynchophorus palmarum (Linnaeus, 1758) to treat and heal skin wounds and respiratory diseases. Based on this ethnopharmacological knowledge, the chemical composition and antioxidant, antimicrobial, and healing properties of R. palmarum larvae oil (RPLO) were investigated, as well as possible toxic effects, through in vitro and in vivo assays. The chemical composition of the RPLO was determined using gas chromatography coupled with mass spectrometry. The antioxidant activity of RPLO was investigated through the direct 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assay, and the antimicrobial activity was evaluated against Gram-positive and Gram-negative bacteria that are pathogenic to humans. The healing properties of RPLO were investigated by performing a cell migration assay using human lung fibroblasts (MRC-5), and the toxicity was analyzed, in vivo, using a Caenorhabditis elegans model and MRC-5 cells, in vitro. RPLO contains 52.2% saturated fatty acids and 47.4% unsaturated fatty acids, with palmitic acid (42.7%) and oleic acid (40%) representing its major components, respectively. RPLO possesses direct antioxidant activity, with a half-maximal inhibitory concentration (IC50) of 46.15 mg.ml-1. The antimicrobial activity of RPLO was not observed at a concentration of 1% (v/v). RPLO did not alter the viability of MRC-5 cells and did not exert toxic effects on C. elegans. Furthermore, MRC-5 cells incubated with 0.5% RPLO showed a higher rate of cell migration than that of the control group, supporting its healing properties. Taken together, RPLO possesses direct antioxidant activity and the potential to aid in the healing process and is not toxic toward in vitro and in vivo models, corroborating the safe use of the oil in traditional Guarani-Kaiowá medicine.
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Affiliation(s)
- Kellen Natalice Vilharva
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism, Federal University of Grande Dourados, Dourados, Brazil
| | - Daniel Ferreira Leite
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism, Federal University of Grande Dourados, Dourados, Brazil
| | - Helder Freitas dos Santos
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism, Federal University of Grande Dourados, Dourados, Brazil
| | - Katia Ávila Antunes
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism, Federal University of Grande Dourados, Dourados, Brazil
| | - Paola dos Santos da Rocha
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism, Federal University of Grande Dourados, Dourados, Brazil
| | - Jaqueline Ferreira Campos
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism, Federal University of Grande Dourados, Dourados, Brazil
| | - Claudiane Vilharroel Almeida
- Protein Purification Laboratory and its Biological Functions, Federal University of Mato Grosso do Sul, Campo Grande, Brazil
| | - Maria Lígia Rodrigues Macedo
- Protein Purification Laboratory and its Biological Functions, Federal University of Mato Grosso do Sul, Campo Grande, Brazil
| | - Denise Brentan Silva
- Laboratory of Natural Products and Mass Spectrometry, Federal University of Mato Grosso do Sul, Campo Grande, Brazil
| | - Caio Fernando Ramalho de Oliveira
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism, Federal University of Grande Dourados, Dourados, Brazil
- Protein Purification Laboratory and its Biological Functions, Federal University of Mato Grosso do Sul, Campo Grande, Brazil
| | - Edson Lucas dos Santos
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism, Federal University of Grande Dourados, Dourados, Brazil
| | - Kely de Picoli Souza
- Research Group on Biotechnology and Bioprospecting Applied to Metabolism, Federal University of Grande Dourados, Dourados, Brazil
- * E-mail:
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25
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Abdel-Latif HMR, Abdel-Tawwab M, Khalil RH, Metwally AA, Shakweer MS, Ghetas HA, Khallaf MA. Black soldier fly (Hermetia illucens) larvae meal in diets of European seabass: Effects on antioxidative capacity, non-specific immunity, transcriptomic responses, and resistance to the challenge with Vibrio alginolyticus. Fish Shellfish Immunol 2021; 111:111-118. [PMID: 33508473 DOI: 10.1016/j.fsi.2021.01.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 01/18/2021] [Accepted: 01/21/2021] [Indexed: 06/12/2023]
Abstract
Black soldier fly larvae meal (BSFLM) has been successfully demonstrated as a promising fish meal (FM) replacer in diets of several fish species including European seabass (Dicentrarchus labrax). However, its impacts on antioxidant capacity, and immune responses of treated fish are still poorly understood. A 60-day feeding trial was carried out to evaluate the effects of partial substitution of FM with different levels of dry BSFLM on the antioxidative status, non-specific immunity, transcriptomic responses, and resistance of European seabass to the challenge with Vibrio alginolyticus. Four isoproteic (45%) and isolipidic diets were formulated by replacing 0.0%, 25%, 35%, and 50% of the dietary FM. Each diet was randomly assigned to four fish groups (in triplicates) (initial mean body weight, 12.1 ± 0.21 g) (20 fish per aquarium) (n = 240). Fish were fed three times daily to the apparent satiation. At the end of the feeding trial, serum antioxidant biomarkers such as malondialdehyde levels, and catalase, superoxide dismutase, and glutathione peroxidase enzyme activities were significantly increased in all BSFLM groups in a dose-dependent manner compared to the control group (P < 0.05). The non-specific immune indices, including phagocytic activity, phagocytic index, serum lysozyme and respiratory burst activities were significantly elevated in BSFLM groups compared to those in the control group (P < 0.05). Significant upregulation of the mRNA expression levels of hepatic heat shock protein 70, interleukin-1beta and interleukin-10 genes were observed in all BSFLM groups compared to the control group (P < 0.05). Additionally, after the challenge with V. alginolyticus, the relative percent of survival was significantly elevated in fish groups fed on diets containing graded levels of BSFLM over the control group (P < 0.05). Conclusively, the present study suggests the potential efficacy of partial replacement of dietary FM protein for up to 50% by BSFLM without negative effects on fish health with possible potentiation of the antioxidative status, and the immune responses of the European seabass.
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Affiliation(s)
- Hany M R Abdel-Latif
- Department of Poultry and Fish Diseases, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt.
| | - Mohsen Abdel-Tawwab
- Department of Fish Biology and Ecology, Central Laboratory for Aquaculture Research, Agriculture Research Center, Abbassa, Abo-Hammad, Sharqia, 44662, Egypt
| | - Riad H Khalil
- Department of Poultry and Fish Diseases, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt
| | | | - Medhat S Shakweer
- Department of Internal Medicine, Infectious and Fish Diseases, Faculty of Veterinary Medicine, Mansoura University, Egypt
| | - Hanan A Ghetas
- Department of Aquatic Animal Medicine and Management, Faculty of Veterinary Medicine, University of Sadat City, Egypt
| | - Mohamed A Khallaf
- Department of Aquatic Animal Medicine and Management, Faculty of Veterinary Medicine, University of Sadat City, Egypt
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26
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Ouyang C, Li Y, Rees TW, Liao X, Jia J, Chen Y, Zhang X, Ji L, Chao H. Supramolecular Assembly of An Organoplatinum(II) Complex with Ratiometric Dual Emission for Two-Photon Bioimaging. Angew Chem Int Ed Engl 2021; 60:4150-4157. [PMID: 33174359 DOI: 10.1002/anie.202014043] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Indexed: 12/18/2022]
Abstract
The organoplatinum(II) complex [Pt(C^N^N)(Cl)] (C^N^N=5,6-diphenyl-2,2'-bipyridine, Pt1) can assemble into nanoaggregates via π-π stacking and complementary hydrogen bonds, rather than Pt-Pt interactions. Pt1 exhibits ratiometric dual emission, including rare blue emission (λem =445 nm) and assembly-induced yellow emission (λem =573 nm), under one- and two-photon excitation. Pt1 displays blue emission in cells with an intact membrane due to its low cellular uptake. In cells where the membrane is disrupted, uptake of the complex is increased and at higher concentrations yellow emission is observed. The ratio of yellow to blue emission shows a linear relationship to the loss of cell membrane integrity. Pt1 is, to our knowledge, the first example of an assembly-induced two-photon ratiometric dual emission organoplatinum complex. The excellent and unique characteristics of the complex enabled its use for the tracking of cell apoptosis, necrosis, and the inflammation process in zebrafish.
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Affiliation(s)
- Cheng Ouyang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Yongguang Li
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Thomas W Rees
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Xinxing Liao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Jianhua Jia
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Yu Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Xiting Zhang
- Department of Chemistry, University of Hong Kong, Pokfulam Road, Hong Kong S.A.R., P. R. China
| | - Liangnian Ji
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Hui Chao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
- MOE Key Laboratory of Theoretical Organic Chemistry and Functional Molecule, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 400201, P. R. China
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27
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Kumar V, Fawole FJ, Romano N, Hossain MS, Labh SN, Overturf K, Small BC. Insect (black soldier fly, Hermetia illucens) meal supplementation prevents the soybean meal-induced intestinal enteritis in rainbow trout and health benefits of using insect oil. Fish Shellfish Immunol 2021; 109:116-124. [PMID: 33352339 DOI: 10.1016/j.fsi.2020.12.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 12/14/2020] [Accepted: 12/15/2020] [Indexed: 06/12/2023]
Abstract
Black solider fly larvae (BSFL) and their oils (BSFLO) are receiving increasing attention as sustainable ingredients in fish feeds, but mostly as replacements to marine sources. There were two aims to this study; in exp. 1, soybean meal (SBM)-based diets were formulated to contain BSFL as supplements at 0 (SBM), 8 (SBM + BSFLlow) or 16% (SBM + BSFLhigh) with a control diet being fishmeal-based (FM). In exp. 2, diets included only fish oil (FO), soybean oil (SBO), BSFLO or BSFLO + bile acid (BA), and all lipid sources were added at 16%. Both experiments were run at the same time and fed to rainbow trout (32 g) with each treatment being triplicated. After 10 weeks the fish were sampled for liver and distal intestine histology, expression of genes responsible for inflammation in the intestine and kidneys, and serum peroxidase and lysozyme activities. In exp. 1, supplementations of BSFL effectively prevented SBM-induced intestinal enteritis, down-regulated intestinal prostaglandin and interferon regulatory factor 1 (IRF-1), while the SBM + BSFLhigh diet significantly increased serum lysozyme activity. In exp. 2, BSFLO caused no histomorphological change to the liver or intestine, but kidney interluekin-8, tumor necrosis factor and IRF-1 were significantly upregulated along with significantly higher serum peroxidase activity. The inclusion of BA in the BSFLO diets significantly upregulated intestinal prostaglandin gene expression. Overall, BSFL supplementations of 8 or 16% prevented SBM-induced intestinal enteritis based on histological observations, which was supported by a down-regulation in pro-inflammatory genes and enhanced innate immunity. Meanwhile, the use of BSFLO showed some immunological benefits. Therefore, these sustainable resources are recommended in the diets of rainbow trout, especially when using elevated levels of plant-based proteins.
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Affiliation(s)
- Vikas Kumar
- Hagerman Fish Culture Experiment Station, Aquaculture Research Institute, University of Idaho, Hagerman, ID, USA; Department of Animal, Veterinary and Food Sciences, Aquaculture Research Institute, University of Idaho, Moscow, ID, USA.
| | - Femi J Fawole
- Hagerman Fish Culture Experiment Station, Aquaculture Research Institute, University of Idaho, Hagerman, ID, USA; Department of Aquaculture and Fisheries, University of Ilorin, Ilorin, Nigeria
| | - Nicholas Romano
- Aquaculture & Fisheries Department, University of Arkansas at Pine Bluff, Arkansas, USA
| | - Md Sakhawat Hossain
- Hagerman Fish Culture Experiment Station, Aquaculture Research Institute, University of Idaho, Hagerman, ID, USA
| | - Shyam N Labh
- Hagerman Fish Culture Experiment Station, Aquaculture Research Institute, University of Idaho, Hagerman, ID, USA
| | - Ken Overturf
- United States Department of Agriculture, Agricultural Research Service, Hagerman Fish Culture Experiment Station, Hagerman, ID, USA
| | - Brian C Small
- Hagerman Fish Culture Experiment Station, Aquaculture Research Institute, University of Idaho, Hagerman, ID, USA
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28
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Abstract
Anisakis simplex s.s. is a parasitic nematode that causes anisakiasis in humans. L3 stage larvae, which are present in many fish species and cephalopods all over the globe, might be consumed and develop occasionally into the L4 stage but cannot reproduce. Anisakiasis is an emerging health problem and economic concern. In recent years, proteomic methods have gained greater acceptance among scientists involved in parasitology and food science. According to that, here, we present tandem mass tag (TMT)-based shotgun proteomics to define differences in proteomic composition between L3 and L4 development stages of A. simplex s.s.
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Affiliation(s)
- Robert Stryiński
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland.
| | - Jesús Mateos
- Department of Food Technology, Institute of Marine Research (IIM), Spanish National Research Council (CSIC), Vigo, Spain
| | - Elżbieta Łopieńska-Biernat
- Department of Biochemistry, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Mónica Carrera
- Department of Food Technology, Institute of Marine Research (IIM), Spanish National Research Council (CSIC), Vigo, Spain
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29
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Foysal MJ, Fotedar R, Siddik MAB, Chaklader MR, Tay A. Lactobacillus plantarum in black soldier fly (Hermetica illucens) meal modulates gut health and immunity of freshwater crayfish (Cherax cainii). Fish Shellfish Immunol 2021; 108:42-52. [PMID: 33232807 DOI: 10.1016/j.fsi.2020.11.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 11/12/2020] [Accepted: 11/18/2020] [Indexed: 06/11/2023]
Abstract
Probiotic supplements are being used to improve the growth and immune performance of aquaculture species over the last couple of decades. In recent times, black soldier fly (BSF) is considered as one of the promising sources of alternative protein to fishmeal protein in aqua-diets. Since the freshwater crayfish, marron (Cherax cainii), a Western Australian's native and iconic freshwater crayfish species, grows fairly slow under commercial farming environment, this study was aimed to investigate the supplemental effect of BSF and BSF with probiotic bacteria Lactobacillus plantarum (BSFLP) on overall health and immune performance of marron after 56 days of feeding under laboratory conditions. The post-trial data revealed insignificant influences of any diets on growth performance, however, both BSF and BSFLP based diets significantly improved some haemolymph parameters and gut health of marron. High throughput sequence data revealed that both BSF and BSFLP diets significantly improved the diversity of microbial communities including some beneficial bacteria for crustaceans in the hindgut of marron. Further analysis showed that both BSF and BSFLP diets upregulated the expression of some genes in the gut tissue and haemocytes associated with the innate immune response of marron at 48 h post injection. The up-regulation of some immune genes in BSFLP diet group was found significantly linked to OTU abundance for Lactobacillus. The findings of this study could be helpful for improving overall health status of marron.
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Affiliation(s)
- Md Javed Foysal
- School of Molecular and Life Sciences, Curtin University, Bentley, WA, Australia; Department of Genetic Engineering and Biotechnology, Shahjalal University of Science and Technology, Sylhet, Bangladesh.
| | - Ravi Fotedar
- School of Molecular and Life Sciences, Curtin University, Bentley, WA, Australia
| | - Muhammad A B Siddik
- Department of Fisheries Biology and Genetics, Patuakhali Science and Technology University, Patuakhali, Bangladesh
| | - Md Reaz Chaklader
- School of Molecular and Life Sciences, Curtin University, Bentley, WA, Australia
| | - Alfred Tay
- Helicobacter Research Laboratory, Marshall Centre for Infectious Disease Research and Training, School of Biomedical Sciences, University of Western Australia, Perth, WA, Australia
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Silva LB, de Souza RG, da Silva SR, Feitosa ADC, Lopes EC, Lima SBP, Dourado LRB, Pavan BE. Development of Tenebrio molitor (Coleoptera: Tenebrionidae) on Poultry Litter-Based Diets: Effect on Chemical Composition of Larvae. J Insect Sci 2021; 21:7. [PMID: 33480430 PMCID: PMC7820700 DOI: 10.1093/jisesa/ieaa145] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Indexed: 05/20/2023]
Abstract
In order to investigate a low-cost and sustainable food source, the present study evaluated the use of poultry litter for rearing Tenebrio molitor Linnaeus, 1758 (Coleoptera: Tenebrionidae). The experiment was performed with five diets containing increasing levels of poultry litter (0, 25, 50, 75, and 100%) replacing the control diet and five replicates with 50 larvae per sample unit. Larval growth and development were evaluated and the chemical compositions of diet and T. molitor larvae were determined. Larval development and reproduction efficiency of T. molitor were similar in all treatments. The sole use of poultry litter to feed T. molitor reduced the crude protein of flour by only 8%. Including 50% or more poultry litter in the standard diet is the best-suited formulation for larvae production and incorporation of minerals in the larvae. Mealworm can be grown successfully on diets composed by poultry litter, the diet did not affect survival, growth, and development; however, studies spanning several insect generations should be performed to determine the effects of diet composition on adult fecundity. The knowledge acquired using poultry litter to feed T. molitor will be useful to carry out new research, in addition to evidencing the possibility of low-cost mass rearing of these larvae.
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Affiliation(s)
- Luciana Barboza Silva
- Department of Agricultural Sciences, Federal University of Piauí, Bom Jesus, Piauí, Brazil
| | - Reneton Gomes de Souza
- Department of Agricultural Sciences, Federal University of Piauí, Bom Jesus, Piauí, Brazil
| | | | | | - Elainy Cristina Lopes
- Department of Agricultural Sciences, Federal University of Piauí, Bom Jesus, Piauí, Brazil
| | | | | | - Bruno Ettore Pavan
- Departamento de Fitotecnia, Universidade Estadual Paulista, Ilha Solteira, São Paulo, Brazil
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Cao X, Wang Y, Rogers J, Hartson S, Kanost MR, Jiang H. Changes in composition and levels of hemolymph proteins during metamorphosis of Manduca sexta. Insect Biochem Mol Biol 2020; 127:103489. [PMID: 33096211 PMCID: PMC7704632 DOI: 10.1016/j.ibmb.2020.103489] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/08/2020] [Accepted: 10/10/2020] [Indexed: 06/11/2023]
Abstract
The tobacco hornworm, Manduca sexta, is a lepidopteran model species widely used to study insect biochemical processes. Some of its larval hemolymph proteins are well studied, and a detailed proteomic analysis of larval plasma proteins became available in 2016, revealing features such as correlation with transcriptome data, formation of immune complexes, and constitution of an immune signaling system in hemolymph. It is unclear how the composition of these proteins may change in other developmental stages. In this paper, we report the proteomes of cell-free hemolymph from prepupae, pupae on day 4 and day 13, and young adults. Of the 1824 proteins identified, 907 have a signal peptide and 410 are related to immunity. Drastic changes in abundance of the storage proteins, lipophorins and vitellogenin, for instance, reflect physiological differences among prepupae, pupae, and adults. Considerably more proteins lacking signal peptide are present in the late pupae, suggesting that plasma contains relatively low concentrations of intracellular components released from remodeling tissues during metamorphosis. The defense proteins detected include 43 serine proteases and 11 serine protease homologs. Some of these proteins are members of the extracellular immune signaling network found in feeding larvae, and others may play additional roles and hence confer new features in the later life stages. In summary, the proteins and their levels revealed in this study, together with their transcriptome data, are expected to stimulate focused explorations of humoral immunity and other physiological systems in wandering larvae, pupae, and adults of M. sexta and shed light upon functional and comparative genomic research in other holometabolous insects.
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Affiliation(s)
- Xiaolong Cao
- Department of Entomology and Plant Pathology, Oklahoma State University, Stillwater, OK, 74078, USA
| | - Yang Wang
- Department of Entomology and Plant Pathology, Oklahoma State University, Stillwater, OK, 74078, USA
| | - Janet Rogers
- Department of Biochemistry and Molecular Biology, Oklahoma State University, Stillwater, OK, 74078, USA
| | - Steve Hartson
- Department of Biochemistry and Molecular Biology, Oklahoma State University, Stillwater, OK, 74078, USA
| | - Michael R Kanost
- Department of Biochemistry and Molecular Biophysics, Kansas State University, Manhattan, KS, 66506, USA
| | - Haobo Jiang
- Department of Entomology and Plant Pathology, Oklahoma State University, Stillwater, OK, 74078, USA.
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Park SJ, Pandey G, Castro-Vargas C, Oakeshott JG, Taylor PW, Mendez V. Cuticular Chemistry of the Queensland Fruit Fly Bactrocera tryoni (Froggatt). Molecules 2020; 25:E4185. [PMID: 32932681 PMCID: PMC7571174 DOI: 10.3390/molecules25184185] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 08/26/2020] [Accepted: 09/10/2020] [Indexed: 01/01/2023] Open
Abstract
The cuticular layer of the insect exoskeleton contains diverse compounds that serve important biological functions, including the maintenance of homeostasis by protecting against water loss, protection from injury, pathogens and insecticides, and communication. Bactrocera tryoni (Froggatt) is the most destructive pest of fruit production in Australia, yet there are no published accounts of this species' cuticular chemistry. We here provide a comprehensive description of B. tryoni cuticular chemistry. We used gas chromatography-mass spectrometry to identify and characterize compounds in hexane extracts of B. tryoni adults reared from larvae in naturally infested fruits. The compounds found included spiroacetals, aliphatic amides, saturated/unsaturated and methyl branched C12 to C20 chain esters and C29 to C33 normal and methyl-branched alkanes. The spiroacetals and esters were found to be specific to mature females, while the amides were found in both sexes. Normal and methyl-branched alkanes were qualitatively the same in all age and sex groups but some of the alkanes differed in amounts (as estimated from internal standard-normalized peak areas) between mature males and females, as well as between mature and immature flies. This study provides essential foundations for studies investigating the functions of cuticular chemistry in this economically important species.
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Affiliation(s)
- Soo J. Park
- Applied BioSciences, Macquarie University, North Ryde, NSW 2109, Australia; (G.P.); (C.C.-V.); (J.G.O.); (P.W.T.); (V.M.)
- Australian Research Council Centre for Fruit Fly Biosecurity Innovation, Macquarie University, North Ryde, NSW 2109, Australia
| | - Gunjan Pandey
- Applied BioSciences, Macquarie University, North Ryde, NSW 2109, Australia; (G.P.); (C.C.-V.); (J.G.O.); (P.W.T.); (V.M.)
- Commonwealth Scientific and Industrial Research Organisation Land and Water, Black Mountain, Acton, ACT 2601, Australia
| | - Cynthia Castro-Vargas
- Applied BioSciences, Macquarie University, North Ryde, NSW 2109, Australia; (G.P.); (C.C.-V.); (J.G.O.); (P.W.T.); (V.M.)
- Commonwealth Scientific and Industrial Research Organisation Land and Water, Black Mountain, Acton, ACT 2601, Australia
| | - John G. Oakeshott
- Applied BioSciences, Macquarie University, North Ryde, NSW 2109, Australia; (G.P.); (C.C.-V.); (J.G.O.); (P.W.T.); (V.M.)
- Commonwealth Scientific and Industrial Research Organisation Land and Water, Black Mountain, Acton, ACT 2601, Australia
| | - Phillip W. Taylor
- Applied BioSciences, Macquarie University, North Ryde, NSW 2109, Australia; (G.P.); (C.C.-V.); (J.G.O.); (P.W.T.); (V.M.)
- Australian Research Council Centre for Fruit Fly Biosecurity Innovation, Macquarie University, North Ryde, NSW 2109, Australia
| | - Vivian Mendez
- Applied BioSciences, Macquarie University, North Ryde, NSW 2109, Australia; (G.P.); (C.C.-V.); (J.G.O.); (P.W.T.); (V.M.)
- Australian Research Council Centre for Fruit Fly Biosecurity Innovation, Macquarie University, North Ryde, NSW 2109, Australia
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Wu C, Yu X, Wang B, Liu J, Meng F, Zhao Y, Xiong L, Yang N, Li Y, Li Z. Synthesis, Insecticidal Evaluation, and 3D-QASR of Novel Anthranilic Diamide Derivatives Containing N-Arylpyrrole as Potential Ryanodine Receptor Activators. J Agric Food Chem 2020; 68:9319-9328. [PMID: 32786854 DOI: 10.1021/acs.jafc.0c04157] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
To cope with the global food shortage and insect pest, there is an urgent need to discover new pesticides with novel modes of actions. Ryanodine receptor (RyR) insecticides showed great promise in integrated pest management. Herein, we report the synthesis of novel anthranilic diamide derivatives incorporating pyrrole moieties targeting at insect RyRs. The structures were confirmed by 1H NMR, 13C NMR, 19F NMR, and high-resolution mass spectrometry. The preliminary bioassay results indicated that most of the title compounds showed good to excellent insecticidal activities against the oriental armyworm (Mythimna separata) and diamondback moth (Plutella xylostella). For the oriental armyworm, Ij displayed the same level of larvicidal activity as the positive control chlorantraniliprole, with an LC50 value of 0.21 mg/L. For the diamondback moth, In, Io, Ip, and Iq exhibited higher insecticidal activities than chlorantraniliprole. In particular, In had 50% larvicidal activity at 0.00001 mg/L. The calcium imaging technique was applied to study the effect of Ij, In, and Ip on the intracellular calcium ion concentration ([Ca2+]i) in central neurons isolated from the oriental armyworm. The results indicated that the tested compounds, such as chlorantraniliprole, could activate the insect RyRs. Furthermore, comparative molecular field analysis and density functional theory calculations were carried out to study the structure-activity relationship.
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Affiliation(s)
- Changchun Wu
- State Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Xiaobo Yu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Baolei Wang
- State Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Jingbo Liu
- State Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Fanfei Meng
- State Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Yangyang Zhao
- State Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Lixia Xiong
- State Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Na Yang
- State Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Yuxin Li
- State Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha 410125, China
| | - Zhengming Li
- State Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
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Altmann BA, Wigger R, Ciulu M, Mörlein D. The effect of insect or microalga alternative protein feeds on broiler meat quality. J Sci Food Agric 2020; 100:4292-4302. [PMID: 32378214 DOI: 10.1002/jsfa.10473] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 03/26/2020] [Accepted: 05/07/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND In order to combat environmental and food security concerns associated with the increasing demand for soymeal related to increasing meat consumption, this study determines the chicken meat quality derived when soymeal is substituted for either partially de-fatted Hermetia illucens larval meal or spirulina (Arthrospira platensis) in broiler diets. Physicochemical parameters, sensory traits, and fatty acid composition of the meat are investigated, as well as an experiment to evaluate the impact of highly oxygenated atmosphere versus vacuum-bag packaging on shelf life was conducted. RESULTS Hermetia illucens did not compromise quality; meat was slightly more yellow (higher b*), had a slightly decreased pH, and was less adhesive during chewing compared to the soy-fed control. Furthermore, Hermetia illucens resulted in higher saturated fatty acids proportions in thigh meat. Spirulina resulted in redder (higher a*) and more yellow (higher b*) meat with a slightly increased umami and chicken flavour. Spirulina-fed chicken meat had higher lipid oxidation levels compared to the control after being packaged in a highly oxygenated atmosphere; although, differences between the spirulina-fed and control fatty acid composition in thigh meat were minor. CONCLUSION Both alternative protein feeds show potential to replace soymeal in broiler diets; however, they do result in moderately altered products.
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Affiliation(s)
- Brianne A Altmann
- Department of Animal Sciences, University of Göttingen, Goettingen, Germany
| | - Ruth Wigger
- Department of Animal Sciences, University of Göttingen, Goettingen, Germany
| | - Marco Ciulu
- Department of Animal Sciences, University of Göttingen, Goettingen, Germany
| | - Daniel Mörlein
- Department of Animal Sciences, University of Göttingen, Goettingen, Germany
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Görres CM, Kammann C. First field estimation of greenhouse gas release from European soil-dwelling Scarabaeidae larvae targeting the genus Melolontha. PLoS One 2020; 15:e0238057. [PMID: 32845917 PMCID: PMC7449402 DOI: 10.1371/journal.pone.0238057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 08/08/2020] [Indexed: 11/24/2022] Open
Abstract
Arthropods are a major soil fauna group, and have the potential to substantially influence the spatial and temporal variability of soil greenhouse gas (GHG) sinks and sources. The overall effect of soil-inhabiting arthropods on soil GHG fluxes still remains poorly quantified since the majority of the available data comes from laboratory experiments, is often controversial, and has been limited to a few species. The main objective of this study was to provide first insights into field-level carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) release of soil-inhabiting larvae of the Scarabaeidae family. Larvae of the genus Melolontha were excavated at various sites in west-central and southern Germany, covering a wide range of different larval developmental stages, larval activity levels, and vegetation types. Excavated larvae were immediately incubated in the field to measure their GHG production. Gaseous carbon release of individual larvae showed a large inter- and intra-site variability which was strongly correlated to larval biomass. This correlation persisted when upscaling individual CO2 and CH4 production to the plot scale. Field release estimates for Melolontha spp. were subsequently upscaled to the European level to derive the first regional GHG release estimates for members of the Scarabaeidae family. Estimates ranged between 10.42 and 409.53 kt CO2 yr-1, and 0.01 and 1.36 kt CH4 yr-1. Larval N2O release was only sporadically observed and not upscaled. For one site, a comparison of field- and laboratory-based GHG production measurements was conducted to assess potential biases introduced by transferring Scarabaeidae larvae to artificial environments. Release strength and variability of captive larvae decreased significantly within two weeks and the correlation between larval biomass and gaseous carbon production disappeared, highlighting the importance of field measurements. Overall, our data show that Scarabaeidae larvae can be significant soil GHG sources and should not be neglected in soil GHG flux research.
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Affiliation(s)
- Carolyn-Monika Görres
- Department of Applied Ecology, Hochschule Geisenheim University, Geisenheim, Germany
- Department of Soil Science and Plant Nutrition, Hochschule Geisenheim University, Geisenheim, Germany
- * E-mail:
| | - Claudia Kammann
- Department of Applied Ecology, Hochschule Geisenheim University, Geisenheim, Germany
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Kochanowski M, Różycki M, Dąbrowska J, Bełcik A, Karamon J, Sroka J, Cencek T. Proteomic and Bioinformatic Investigations of Heat-Treated Anisakis simplex Third-Stage Larvae. Biomolecules 2020; 10:E1066. [PMID: 32708775 PMCID: PMC7407331 DOI: 10.3390/biom10071066] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 07/10/2020] [Accepted: 07/13/2020] [Indexed: 02/08/2023] Open
Abstract
Anisakis simplex third-stage larvae are the main source of hidden allergens in marine fish products. Some Anisakis allergens are thermostable and, even highly processed, could cause hypersensitivity reactions. However, Anisakis proteome has not been studied under autoclaving conditions of 121 °C for 60 min, which is an important process in the food industry. The aim of the study was the identification and characterization of allergens, potential allergens, and other proteins of heat-treated A. simplex larvae. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) was used to identify 470 proteins, including allergens-Ani s 1, Ani s 2, Ani s 3, Ani s 4, Ani s 5-and 13 potential allergens that were mainly homologs of Anisakis spp., Ascaris spp., and Acari allergens. Ani s 2, Ani s 3, Ani s 5, and three possible allergens were found among the top 25 most abundant proteins. The computational analysis allowed us to detect allergen epitopes, assign protein families, and domains as well as to annotate the localization of proteins. The predicted 3D models of proteins revealed similarities between potential allergens and homologous allergens. Despite the partial degradation of heated A. simplex antigens, their immunoreactivity with anti-A. simplex IgG antibodies was confirmed using a Western blot. In conclusion, identified epitopes of allergenic peptides highlighted that the occurrence of Anisakis proteins in thermally processed fish products could be a potential allergic hazard. Further studies are necessary to confirm the IgE immunoreactivity and thermostability of identified proteins.
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Affiliation(s)
- Maciej Kochanowski
- Department of Parasitology and Invasive Diseases, National Veterinary Research Institute, Partyzantów Avenue 57, 24-100 Puławy, Poland; (M.R.); (J.D.); (A.B.); (J.K.); (J.S.); (T.C.)
| | | | | | | | | | | | - Tomasz Cencek
- Department of Parasitology and Invasive Diseases, National Veterinary Research Institute, Partyzantów Avenue 57, 24-100 Puławy, Poland; (M.R.); (J.D.); (A.B.); (J.K.); (J.S.); (T.C.)
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Hadj Saadoun J, Montevecchi G, Zanasi L, Bortolini S, Macavei LI, Masino F, Maistrello L, Antonelli A. Lipid profile and growth of black soldier flies (Hermetia illucens, Stratiomyidae) reared on by-products from different food chains. J Sci Food Agric 2020; 100:3648-3657. [PMID: 32239772 DOI: 10.1002/jsfa.10397] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 03/10/2020] [Accepted: 04/02/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND The total amount of bio-waste produced annually in the EU by the food and beverage chains is estimated at 37 billion kg. The use of insects for the valorization of by-products from these value chains may represent a sustainable solution. This study aimed to investigate the by-products obtained from different food chains and used for the rearing of black soldier fly (BSF) prepupae, and to evaluate the content and profile of the lipid extracted from the prepupae and outline its possible applications. The substrates used in this experiment were: (i) industrial by-products (brewery spent grains, cows' milk whey, grape stalks, and tomato peels and seeds) and (ii) by-products from retailers (bread dough, fish scraps, and spent coffee ground). Fat extracted from prepupae using an adjusted Folch method was used for total lipid content and fatty acid profile. RESULTS The best larval performances were obtained from beer (0.22 gweight per prepupa), tomato (0.19 gweight per prepupa), and cheese (0.14 gweight per prepupa) food-chain by-products. The extremely different compositions of the substrates were reflected in the differentiated lipid profile of the BSF prepupae and in the range of ratios between unsaturated and saturated fatty acids, which varied from 0.37 for cows' milk whey to 1.34 for tomato peels and seeds. CONCLUSION The lipids, proteins, and chitin extracted from prepupae are high-value bio-based products that could be used in the feed / food industry or for the development of innovative biomaterials, such as biodiesel. These results suggest that food-chain by-products are the best candidates for insect-bioconversion purposes. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Jasmine Hadj Saadoun
- Department of Food and Drug, University of Parma, Parma, Italy
- Department of Life Sciences (Agro-Food Science Area), BIOGEST - SITEIA Interdepartmental Centre, University of Modena and Reggio Emilia, Reggio Emilia, Italy
| | - Giuseppe Montevecchi
- Department of Life Sciences (Agro-Food Science Area), BIOGEST - SITEIA Interdepartmental Centre, University of Modena and Reggio Emilia, Reggio Emilia, Italy
| | - Luca Zanasi
- Department of Life Sciences (Agro-Food Science Area), BIOGEST - SITEIA Interdepartmental Centre, University of Modena and Reggio Emilia, Reggio Emilia, Italy
| | - Sara Bortolini
- Department of Life Sciences (Agro-Food Science Area), BIOGEST - SITEIA Interdepartmental Centre, University of Modena and Reggio Emilia, Reggio Emilia, Italy
- Faculty of Science and Technology, Free University of Bozen-Bolzano, Bolzano, Italy
| | - Laura Ioana Macavei
- Department of Life Sciences (Agro-Food Science Area), BIOGEST - SITEIA Interdepartmental Centre, University of Modena and Reggio Emilia, Reggio Emilia, Italy
| | - Francesca Masino
- Department of Life Sciences (Agro-Food Science Area), BIOGEST - SITEIA Interdepartmental Centre, University of Modena and Reggio Emilia, Reggio Emilia, Italy
| | - Lara Maistrello
- Department of Life Sciences (Agro-Food Science Area), BIOGEST - SITEIA Interdepartmental Centre, University of Modena and Reggio Emilia, Reggio Emilia, Italy
| | - Andrea Antonelli
- Department of Life Sciences (Agro-Food Science Area), BIOGEST - SITEIA Interdepartmental Centre, University of Modena and Reggio Emilia, Reggio Emilia, Italy
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Ujszegi J, Vajna B, Móricz ÁM, Krüzselyi D, Korponai K, Krett G, Hettyey A. Relationships Between Chemical Defenses of Common Toad (Bufo bufo) Tadpoles and Bacterial Community Structure of their Natural Aquatic Habitat. J Chem Ecol 2020; 46:534-543. [PMID: 32468489 PMCID: PMC7332479 DOI: 10.1007/s10886-020-01184-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 03/10/2020] [Accepted: 05/15/2020] [Indexed: 12/02/2022]
Abstract
Many organisms synthesize secondary metabolites against natural enemies. However, to which environmental factors the production of these metabolites is adjusted to is poorly investigated in animals, especially so in vertebrates. Bufadienolides are steroidal compounds that are present in a wide range of plants and animals and, if present in large quantities, can provide protection against natural enemies, such as pathogens. In a correlative study involving 16 natural populations we investigated how variation in bufadienolide content of larval common toads (Bufo bufo) is associated with the bacterial community structure of their aquatic environment. We also evaluated pond size, macrovegetation cover, and the abundance of predators, conspecifics and other larval amphibians. We measured toxin content of tadpoles using HPLC-MS and determined the number of bufadienolide compounds (NBC) and the total quantity of bufadienolides (TBQ). AICc-based model selection revealed strong relationships of NBC and TBQ with bacterial community structure of the aquatic habitat as well as with the presence of conspecific tadpoles. The observed relationships may have arisen due to adaptation to local bacterial communities, phenotypic plasticity, differential biotransformation of toxin compounds by different bacterial communities, or a combination of these processes. Bacterial groups that contribute to among-population variation in toxin content remain to be pinpointed, but our study suggesting that toxin production may be influenced by the bacterial community of the environment represents an important step towards understanding the ecological and evolutionary processes leading to microbiota-mediated variation in skin toxin profiles of aquatic vertebrates.
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Affiliation(s)
- János Ujszegi
- Lendület Evolutionary Ecology Research Group, Plant Protection Institute, Centre for Agricultural Research, Herman Ottó út 15, Budapest, 1022, Hungary.
| | - Balázs Vajna
- Department of Microbiology, Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest, 1117, Hungary
| | - Ágnes M Móricz
- Department of Pathophysiology, Plant Protection Institute, Centre for Agricultural Research, Herman Ottó út 15, Budapest, 1022, Hungary
| | - Dániel Krüzselyi
- Department of Pathophysiology, Plant Protection Institute, Centre for Agricultural Research, Herman Ottó út 15, Budapest, 1022, Hungary
| | - Kristóf Korponai
- Department of Microbiology, Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest, 1117, Hungary
| | - Gergely Krett
- Department of Microbiology, Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest, 1117, Hungary
- Danube Research Institute, Centre for Ecological Research, Karolina út 29, Budapest, 1113, Hungary
| | - Attila Hettyey
- Lendület Evolutionary Ecology Research Group, Plant Protection Institute, Centre for Agricultural Research, Herman Ottó út 15, Budapest, 1022, Hungary
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Miranda MRA, Uchôa AF, Ferreira SR, Ventury KE, Costa EP, Carmo PRL, Machado OLT, Fernandes KVS, Amancio Oliveira AE. Chemical Modifications of Vicilins Interfere with Chitin-Binding Affinity and Toxicity to Callosobruchus maculatus (Coleoptera: Chrysomelidae) Insect: A Combined In Vitro and In Silico Analysis. J Agric Food Chem 2020; 68:5596-5605. [PMID: 32343573 DOI: 10.1021/acs.jafc.9b08034] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Vicilins are related to cowpea seed resistance toward Callosobruchus maculatus due to their ability to bind to chitinous structures lining larval midgut. However, this binding mechanism is not fully understood. Here, we identified chitin binding sites and investigated how in vitro and in silico chemical modifications interfere with vicilin chitin binding and insect toxicity. In vitro assays showed that unmodified vicilin strongly binds to chitin matrices, mainly with acetylated chitin. Chemical modifications of specific amino acids (tryptophan, lysine, tyrosine), as well as glutaraldehyde cross-linking, decreased the evaluated parameters. In silico analyses identified at least one chitin binding site in vicilin monomer, the region between Arg208 and Lys216, which bears the sequence REGIRELMK and forms an α helix, exposed in the 3D structure. In silico modifications of Lys223 (acetylated at its terminal nitrogen) and Trp316 (iodinated to 7-iodine-L-tryptophan or oxidized to β-oxy-indolylalanine) decreased vicilin chitin binding affinity. Glucose, sucrose, and N-acetylglucosamine also interfered with vicilin chitin binding affinity.
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Affiliation(s)
- Maria Raquel A Miranda
- Departamento de Bioquímica, Centro de Ciências, Universidade Federal do Ceará (UFC), Fortaleza Ceará 60440554, Brazil
| | - Adriana F Uchôa
- Departamento de Biologia Celular e Genética, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte 59072970, Brazil
| | - Sarah R Ferreira
- Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), Campos dos Goytacazes, Rio de Janeiro 28013-602, Brazil
| | - Kayan E Ventury
- Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), Campos dos Goytacazes, Rio de Janeiro 28013-602, Brazil
| | - Evenilton P Costa
- Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), Campos dos Goytacazes, Rio de Janeiro 28013-602, Brazil
| | - Paulo R Leitão Carmo
- NUPEN, Universidade Federal do Rio de Janeiro (UFRJ) Macaé, Rio de Janeiro 27965-045, Brazil
| | - Olga L T Machado
- Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), Campos dos Goytacazes, Rio de Janeiro 28013-602, Brazil
| | - Katia V S Fernandes
- Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), Campos dos Goytacazes, Rio de Janeiro 28013-602, Brazil
| | - Antonia Elenir Amancio Oliveira
- Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), Campos dos Goytacazes, Rio de Janeiro 28013-602, Brazil
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Boykin KL, Carter RT, Butler-Perez K, Buck CQ, Peters JW, Rockwell KE, Mitchell MA. Digestibility of black soldier fly larvae (Hermetia illucens) fed to leopard geckos (Eublepharis macularius). PLoS One 2020; 15:e0232496. [PMID: 32392254 PMCID: PMC7213736 DOI: 10.1371/journal.pone.0232496] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 04/15/2020] [Indexed: 01/22/2023] Open
Abstract
Black soldier fly (BSF) larvae have been marketed as an excellent choice for providing calcium to reptiles without the need of dusting or gut loading. However, previous studies have indicated that they have limited calcium digestibility and are deficient in fat soluble vitamins (A, D3, and E). In this feeding and digestibility trial, 24 adult male leopard geckos were fed one of three diets for 4 months: 1) whole, vitamin A gut loaded larvae; 2) needle pierced, vitamin A gut loaded larvae; or 3) whole, non-gut loaded larvae. Fecal output from the geckos was collected daily and apparent digestibility was calculated for dry matter, protein, fat, and minerals. There were no differences in digestibility coefficients among groups. Most nutrients were well digested by the leopard geckos when compared to previous studies, with the exception of calcium (digestibility co-efficient 43%), as the calcium-rich exoskeleton usually remained intact after passage through the GI tract. Biochemistry profiles revealed possible deficits occurring over time for calcium, sodium, and total protein. In regards to vitamin A digestibility, plasma and liver vitamin A concentrations were significantly higher in the supplemented groups (plasma- gut loaded groups: 33.38 ± 7.11 ng/ml, control group: 25.8 ± 6.72 ng/ml, t = 1.906, p = 0.04; liver- gut loaded groups: 28.67 ± 18.90 μg/g, control group: 14.13 ± 7.41 μg/g, t = 1.951, p = 0.03). While leopard geckos are able to digest most of the nutrients provided by BSF larvae, including those that have been gut loaded, more research needs to be performed to assess whether or not they provide adequate calcium in their non-supplemented form.
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Affiliation(s)
- Kimberly L. Boykin
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, United States of America
| | - Renee T. Carter
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, United States of America
| | - Karina Butler-Perez
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, United States of America
| | - Cameron Q. Buck
- College of Veterinary Medicine, Tuskegee University, Tuskegee, AL, United States of America
| | - Jordan W. Peters
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, United States of America
| | - Kelly E. Rockwell
- Berkeley Dog and Cat Hospital, Berkeley, CA, United States of America
| | - Mark A. Mitchell
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, United States of America
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Nono JK, Lutz MB, Brehm K. Expansion of Host Regulatory T Cells by Secreted Products of the Tapeworm Echinococcus multilocularis. Front Immunol 2020; 11:798. [PMID: 32457746 PMCID: PMC7225322 DOI: 10.3389/fimmu.2020.00798] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 04/07/2020] [Indexed: 01/15/2023] Open
Abstract
Background Alveolar echinococcosis (AE), caused by the metacestode larval stage of the fox-tapeworm Echinococcus multilocularis, is a chronic zoonosis associated with significant modulation of the host immune response. A role of regulatory T-cells (Treg) in generating an immunosuppressive environment around the metacestode during chronic disease has been reported, but the molecular mechanisms of Treg induction by E. multilocularis, particularly parasite immunoregulatory factors involved, remain elusive so far. Methodology/Principal Findings We herein demonstrate that excretory/secretory (E/S) products of the E. multilocularis metacestode promote the formation of Foxp3+ Treg from CD4+ T-cells in vitro in a TGF-β-dependent manner, given that this effect was abrogated by treatment with antibody to mammalian TGF-β. We also show that host T-cells secrete elevated levels of the immunosuppressive cytokine IL-10 in response to metacestode E/S products. Within the E/S fraction of the metacestode we identified an E. multilocularis activin A homolog (EmACT) that displays significant similarities to mammalian Transforming Growth Factor-β (TGF-β/activin subfamily members. EmACT obtained from heterologous expression failed to directly induce Treg expansion from naïve T cells but required addition of recombinant host TGF-β to promote CD4+ Foxp3+ Treg conversion in vitro. Furthermore, like in the case of metacestode E/S products, EmACT-treated CD4+ T-cells secreted higher levels of IL-10. These observations suggest a contribution of EmACT to in vitro expansion of Foxp3+ Treg by the E. multilocularis metacestode. Using infection experiments we show that intraperitoneally injected metacestode tissue expands host Foxp3+ Treg, confirming the expansion of this cell type in vivo during parasite establishment. Conclusion/Significance In conclusion, we herein demonstrate that E. multilocularis larvae secrete factors that induce the secretion of IL-10 by T-cells and contribute to the expansion of TGF-b-driven Foxp3+ Treg, a cell type that has been reported crucial for generating a tolerogenic environment to support parasite establishment and proliferation. Among the E/S factors of the parasite we identified a factor with structural and functional homologies to mammalian activin A which might play an important role in these activities.
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Affiliation(s)
- Justin Komguep Nono
- Institute of Hygiene and Microbiology, University of Würzburg, Würzburg, Germany
- Division of Immunology, Health Science Faculty, University of Cape Town, Cape Town, South Africa
- The Medical Research Centre, Institute of Medical Research and Medicinal Plant Studies, Ministry of Scientific Research and Innovation, Yaounde, Cameroon
| | - Manfred B. Lutz
- Institute of Virology and Immunobiology, University of Würzburg, Würzburg, Germany
| | - Klaus Brehm
- Institute of Hygiene and Microbiology, University of Würzburg, Würzburg, Germany
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Wang S, Zhang C, Chen W, Ren L, Ling J, Shang Y, Guo Y. Effects of Methamphetamine on the Development and Its Determination in Aldrichina grahami (Diptera: Calliphoridae). J Med Entomol 2020; 57:691-696. [PMID: 31819957 DOI: 10.1093/jme/tjz239] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Indexed: 06/10/2023]
Abstract
Age determination of necrophagous flies serves as an important tool for postmortem interval (PMI) estimation in forensic investigations. Drugs or toxins in cadavers may alter the developmental time of larvae, and lead to deviation in PMI estimation. Methamphetamine (MA), as one of the most abused psychostimulant drugs in Asia and North America, is often involved in forensic entomotoxicological cases. This study investigated the effects of MA (0, 45, 90, and 180 ng/mg) on the developmental rate, morphology, and survival of Aldrichina grahami (Aldrich, 1930). The results showed that 1) the developmental time to reach the pupal instar was statistically slower for the larvae reared on rabbit mince containing MA than for the control; 2) the mean length of the larvae exposed to MA concentrations was longer than those of the control; 3) the mean weight of the pupae exposed to the highest concentration of MA was significantly lighter than those of the control; 4) the GC-MS method can detect the content of MA in A. grahami immatures and empty puparia (EP).
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Affiliation(s)
- Shiwen Wang
- Department of Forensic Science, School of Basic Medical Sciences, Xinjiang Medical University, Ürümqi, China
| | - Changquan Zhang
- Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Sciences, Central South University, Changsha, China
| | - Wei Chen
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha, China
| | - Lipin Ren
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha, China
| | - Jiang Ling
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha, China
| | - Yanjie Shang
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha, China
| | - Yadong Guo
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha, China
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Liu T, Guo X, Bu Y, Zhou Y, Duan Y, Yang Q. Structural and biochemical insights into an insect gut-specific chitinase with antifungal activity. Insect Biochem Mol Biol 2020; 119:103326. [PMID: 31968227 DOI: 10.1016/j.ibmb.2020.103326] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 01/08/2020] [Accepted: 01/16/2020] [Indexed: 06/10/2023]
Abstract
The antifungal activity of insect chitinase has rarely been studied. Here, we show that chitinase ChtIV, which is specifically expressed in the midgut of Asian corn borer (Ostrinia furnacalis), has antifungal activity toward phytopathogenic fungi. ChtIV exhibited high stability and mycelial hydrolytic activity in the extreme midgut environment, which has a pH of 10 and is rich in proteases. Hyper-N-glycosylation and reduced electrostatic interactions ensure the stability of ChtIV in the midgut. The structural characteristics of ChtIV are similar to two plant antifungal chitinases but distinct from an insect chitinase for cuticular chitin degradation in both the substrate-binding cleft and auxiliary binding motif. Since the phytopathogenic fungi are those that frequently invade corn, ChtIV may play a role in insect immune system and become a potential pesticide target. The crystal structures of ChtIV and its complexes with penta-N-acetylchitopentaose (a substrate) and allosamidin (an inhibitor) were obtained, which may facilitate rational design of ChtIV inhibitors as agrichemicals.
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Affiliation(s)
- Tian Liu
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China
| | - Xiaoguang Guo
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China
| | - Yunfei Bu
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China
| | - Yong Zhou
- School of Software, Dalian University of Technology, Dalian, 116024, China
| | - Yanwei Duan
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China
| | - Qing Yang
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China; State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
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Farouj Y, Karahanoglu FI, Van De Ville D. Deconvolution of Sustained Neural Activity From Large-Scale Calcium Imaging Data. IEEE Trans Med Imaging 2020; 39:1094-1103. [PMID: 31545714 DOI: 10.1109/tmi.2019.2942765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Recent technological advances in light-sheet microscopy make it possible to perform whole-brain functional imaging at the cellular level with the use of Ca2+ indicators. The outstanding spatial extent and resolution of this type of data open unique opportunities for understanding the complex organization of neuronal circuits across the brain. However, the analysis of this data remains challenging because the observed variations in fluorescence are, in fact, noisy indirect measures of the neuronal activity. Moreover, measuring over large field-of-view negatively impact temporal resolution and signal-to-noise ratio, which further impedes conventional spike inference. Here we argue that meaningful information can be extracted from large-scale functional imaging data by deconvolving with the calcium response and by modeling moments of sustained neuronal activity instead of individual spikes. Specifically, we characterize the calcium response by a linear system of which the inverse is a differential operator. This operator is then included in a regularization term promoting sparsity of activity transients through generalized total variation. Our results illustrate the numerical performance of the algorithm on simulated signals; i.e., we show the firing rate phase transition at which our model outperforms spike inference. Finally, we apply the proposed algorithm to experimental data from zebrafish larvæ. In particular, we show that, when applied to a specific group of neurons, the algorithm retrieves neural activation that matches the locomotor behavior unknown to the method.
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Soler-Jiménez LC, Hernández-Núñez E, Velázquez-Abunader I, Centeno-Chalé A, Vidal-Martínez VM. Polycyclic aromatic hydrocarbons in the cestode Oncomegas wageneri parasite of Mexican flounder Cyclopsetta chittendeni. Parasitol Res 2020; 119:903-913. [PMID: 32008065 PMCID: PMC7075845 DOI: 10.1007/s00436-019-06597-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 12/29/2019] [Indexed: 12/21/2022]
Abstract
The concentrations of polycyclic aromatic hydrocarbon metabolites (PAHm) and their bioconcentration factors (BCF) were determined in the larval stages of the cestode Oncomegas wageneri, recovered from the intestine of the Mexican flounder Cyclopsetta chittendeni, in the southern Gulf of Mexico. The PAHm concentrations in O. wageneri were measured using fixed-wavelength fluorescence spectrometry and compared with PAHm concentrations in host bile. Oncomegas wageneri PAHm concentrations were markedly higher than those in host tissues. The highest BCF values were obtained for 1-hydroxypyrene (OHP) and benzo(a)pyrene (BaP). Using a General Linear Model, a significant negative relationship was found between O. wageneri PAHm concentrations (as response variable) and the number of O. wageneri and oil well proximity. Low BCF values and PAHm concentrations in C. chittendeni correlated positively with O. wageneri PAHm concentrations. In contrast, high BCF values for PAHm concentrations in C. chittendeni had a negative association with O. wageneri PAHm concentrations. This study provides the first evidence of the presence of PAHm in intestinal larval cestodes of marine flatfishes, demonstrating levels of PAHm that were higher than levels in their hosts.
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Affiliation(s)
- Lilia C Soler-Jiménez
- Laboratorios de Parasitología y Pesquerías, Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV-IPN) Unidad Mérida, Carretera Antigua a Progreso Km. 6, Cordemex, C.P. 97310, Mérida, Yucatán, Mexico
| | - Emanuel Hernández-Núñez
- Laboratorios de Parasitología y Pesquerías, Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV-IPN) Unidad Mérida, Carretera Antigua a Progreso Km. 6, Cordemex, C.P. 97310, Mérida, Yucatán, Mexico
| | - Iván Velázquez-Abunader
- Laboratorios de Parasitología y Pesquerías, Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV-IPN) Unidad Mérida, Carretera Antigua a Progreso Km. 6, Cordemex, C.P. 97310, Mérida, Yucatán, Mexico
| | - Arturo Centeno-Chalé
- Laboratorios de Parasitología y Pesquerías, Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV-IPN) Unidad Mérida, Carretera Antigua a Progreso Km. 6, Cordemex, C.P. 97310, Mérida, Yucatán, Mexico
| | - Víctor M Vidal-Martínez
- Laboratorios de Parasitología y Pesquerías, Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV-IPN) Unidad Mérida, Carretera Antigua a Progreso Km. 6, Cordemex, C.P. 97310, Mérida, Yucatán, Mexico.
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Xia S, Wang J, Zhang Y, Whisman N, Bi J, Steenwinkel TE, Wan S, Medford J, Tajiri M, Luck RL, Werner T, Liu H. Ratiometric fluorescent probes based on through-bond energy transfer of cyanine donors to near-infrared hemicyanine acceptors for mitochondrial pH detection and monitoring of mitophagy. J Mater Chem B 2020; 8:1603-1615. [PMID: 32055810 PMCID: PMC7058096 DOI: 10.1039/c9tb02302j] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Two ratiometric near-infrared fluorescent probes have been developed to selectively detect mitochondrial pH changes based on highly efficient through-bond energy transfer (TBET) from cyanine donors to near-infrared hemicyanine acceptors. The probes consist of identical cyanine donors connected to different hemicyanine acceptors with a spirolactam ring structure linked via a biphenyl linkage. At neutral or basic pH, the probes display only fluorescence of the cyanine donors when they are excited at 520 nm. However, acidic pH conditions trigger spirolactam ring opening, leading to increased π-conjugation of the hemicyanine acceptors, resulting in new near-infrared fluorescence peaks at 740 nm and 780 nm for probes A and B, respectively. This results in ratiometric fluorescence responses of the probes to pH changes indicated by decreases of the donor fluorescence and increases of the acceptor fluorescence under donor excitation at 520 nm due to a highly efficient TBET from the donors to the acceptors. The probes only show cyanine donor fluorescence in alkaline-pH mitochondria. However, the probes show moderate fluorescence decreases of the cyanine donor and considerable fluorescence increases of hemicyanine acceptors during the mitophagy process induced by nutrient starvation or under drug treatment. The probes display rapid, selective, and sensitive responses to pH changes over metal ions, good membrane penetration, good photostability, large pseudo-Stokes shifts, low cytotoxicity, mitochondria-targeting, and mitophagy-tracking capabilities.
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Affiliation(s)
- Shuai Xia
- Department of Chemistry, Michigan Technological University, Houghton, MI 49931, USA.
| | - Jianbo Wang
- Department of Chemistry, Michigan Technological University, Houghton, MI 49931, USA. and College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China.
| | - Yibin Zhang
- Department of Chemistry, Michigan Technological University, Houghton, MI 49931, USA.
| | - Nick Whisman
- Department of Chemistry, Michigan Technological University, Houghton, MI 49931, USA.
| | - Jianheng Bi
- Department of Chemistry, Michigan Technological University, Houghton, MI 49931, USA.
| | - Tessa E Steenwinkel
- Department of Biological Sciences, Michigan Technological University, Houghton, MI 49931, USA.
| | - Shulin Wan
- Department of Chemistry, Michigan Technological University, Houghton, MI 49931, USA.
| | - Jerry Medford
- Department of Chemistry, Michigan Technological University, Houghton, MI 49931, USA.
| | - Momoko Tajiri
- Department of Chemistry, Michigan Technological University, Houghton, MI 49931, USA.
| | - Rudy L Luck
- Department of Chemistry, Michigan Technological University, Houghton, MI 49931, USA.
| | - Thomas Werner
- Department of Biological Sciences, Michigan Technological University, Houghton, MI 49931, USA.
| | - Haiying Liu
- Department of Chemistry, Michigan Technological University, Houghton, MI 49931, USA.
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Wang T, Shen Q, Feng W, Wang C, Yang F. Aqueous ethyl acetate as a novel solvent for the degreasing of black soldier fly (Hermetia illucens L.) larvae: degreasing rate, nutritional value evaluation of the degreased meal, and thermal properties. J Sci Food Agric 2020; 100:1204-1212. [PMID: 31696521 DOI: 10.1002/jsfa.10131] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 10/18/2019] [Accepted: 11/01/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND The aim of this study was to select appropriate low-toxicity degreasing solvents to degrease black soldier fly (BSF, Hermetia illucens L.) larvae to prepare high-quality protein. Aqueous ethyl acetate was chosen as the solvent to extract BSF protein, and traditional solvents, such as petroleum ether, n-hexane, and isopropanol, were chosen as controls. RESULTS The meal degreased by aqueous ethyl acetate (the volume ratio of ethyl acetate to water is 90 to 10, EA + W10) shows a high degreasing rate (29.04%), crude protein content (562.3 g kg-1 ), essential amino acid index (EAAI, 95.57), and digestible indispensable amino acid score (DIAAS, 85). The digestibility of the degreased meal samples in the simulated in vitro intestine can reach 76.52%. Thermodynamic analysis and the apparent morphology of the protein fragments showed that the meal degreased by EA + W10 exhibited thermodynamic stability, which suggests that using aqueous ethyl acetate as the degreasing solvent did not affect the nutritional value of the degreased meal. CONCLUSION The results suggest that aqueous ethyl acetate (EA + W10) can be used as a novel solvent in the degreasing of BSF larvae meal to prepare high-quality protein with high EAAI and DIAAS and good digestibility. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Tielin Wang
- School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan, China
- School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan, China
- Key Laboratory of Novel and Green Chemical Technology of Hubei Province, Wuhan Institute of Technology, Wuhan, China
| | - Qiao Shen
- School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan, China
| | - Weiliang Feng
- School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan, China
- School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan, China
- Key Laboratory of Novel and Green Chemical Technology of Hubei Province, Wuhan Institute of Technology, Wuhan, China
| | - Cunwen Wang
- School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan, China
- School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan, China
- Key Laboratory of Novel and Green Chemical Technology of Hubei Province, Wuhan Institute of Technology, Wuhan, China
| | - Fang Yang
- School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan, China
- Key Laboratory of Novel and Green Chemical Technology of Hubei Province, Wuhan Institute of Technology, Wuhan, China
- Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, Wuhan, China
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Bruni L, Belghit I, Lock EJ, Secci G, Taiti C, Parisi G. Total replacement of dietary fish meal with black soldier fly (Hermetia illucens) larvae does not impair physical, chemical or volatile composition of farmed Atlantic salmon (Salmo salar L.). J Sci Food Agric 2020; 100:1038-1047. [PMID: 31650558 DOI: 10.1002/jsfa.10108] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 10/12/2019] [Accepted: 10/15/2019] [Indexed: 05/24/2023]
Abstract
BACKGROUND The aquafeed sector has been replacing conventional dietary ingredients with more economic and eco-friendly ingredients. Insects embody a promising alternative as a result of being highly nutritious and showing traits leading to a circular bioeconomy. Atlantic salmon (Salmo salar L.) at the sea-water stage were fed diets with a partial or complete substitution of fishmeal with meal of Hermetia illucens larvae reared on a media containing Ascophyllum nodosum mixed with organic wastes (60:40). The present study aimed to assess the quality of fillets by characterizing its physico-chemical traits with conventional and innovative methods, such as the proton transfer reaction-time of flight-mass spectrometer technique, allowing the analysis of samples at room temperature. Finally, steamed fillets underwent a consumer test to investigate the liking of consumers and their intention of re-consumption. RESULTS The main findings showed that a complete dietary substitution of fishmeal with H. illucens larvae meal did not impair the physico-chemical quality of A. salmon fillets. Notably, neutral n-3 polyunsaturated fatty acids (PUFA) slightly but significantly increased in the fillets of A. salmon fed H. illucens, also as a result of the additional fish oil present in the diets containing insect. The volatile organic profile was not altered by the different diets. The consumer-liking test revealed that Italian consumers appreciated the tested salmon irrespective of the administered feed. CONCLUSION Tailoring the insect fatty acid profile by rearing the larvae on a PUFA-rich substrate, coupled with a dietary modulation of the oily source, can successfully maintain or even increase the cardioprotective characteristics of fillets. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Leonardo Bruni
- Department of Agriculture, Food, Environment and Forestry, University of Florence, Florence, Italy
| | | | | | - Giulia Secci
- Department of Agriculture, Food, Environment and Forestry, University of Florence, Florence, Italy
| | - Cosimo Taiti
- Department of Agriculture, Food, Environment and Forestry, University of Florence, Florence, Italy
| | - Giuliana Parisi
- Department of Agriculture, Food, Environment and Forestry, University of Florence, Florence, Italy
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Mwaniki Z, Shoveller AK, Huber LA, Kiarie EG. Complete replacement of soybean meal with defatted black soldier fly larvae meal in Shaver White hens feeding program (28-43 wks of age): impact on egg production, egg quality, organ weight, and apparent retention of components. Poult Sci 2020; 99:959-965. [PMID: 32036987 PMCID: PMC7587673 DOI: 10.1016/j.psj.2019.10.032] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 10/03/2019] [Accepted: 10/09/2019] [Indexed: 11/16/2022] Open
Abstract
Effects of total replacement of soybean meal (SBM) with defatted black soldier fly larvae meal (BSFLM) on egg production and quality, organ weight, and apparent retention (AR) of components were investigated in Shaver White hens from 28 to 43 wk of age. A total of 108 birds, (6 birds/cage) were assigned to three diets (6 replicates/diet). Diets were control corn-SBM diet and two additional diets made with the addition of either 10 or 15% BSFLM. Diets met or exceeded breeder specifications, contained TiO2 as an indigestible marker, and were prepared in pellet form. Birds had free access to feed and water throughout the experiment. Hen-day egg production (HDEP) was monitored daily. Feed intake (FI) and body weight (BW) were monitored in 4-wk intervals. All eggs laid on the sixth day of wks 31, 35, 39, and 43 were used for egg weight (EW), Haugh units (HU), yolk color (YC), shell breaking strength (SBS), and shell thickness (ST). Excreta samples were collected for 3 consecutive days on wk 33 for AR and two birds/cage were necropsied at the end. There were no (P > 0.05) diet effects on HDEP, FI, and HU. Inclusion of BSFLM linearly decreased (P < 0.05) egg mass and feed conversion ratio (FCR) and quadratically increased (P < 0.05) BW. There was no (P > 0.05) interaction between diet and sampling time point on egg quality parameters. Inclusion of BSFLM increased SBF and YC linearly (P < 0.05) and ST quadratically (P = 0.028). Inclusion of BSFLM quadratically (P ≤ 0.01) reduced empty ceca weight and increased liver weight and had no effect (P > 0.05) on gizzard, small intestine, and pancreas weights. Feeding BSFLM linearly (P = 0.001) and quadratically (P = 0.007) increased apparent metabolizable energy (AME). Data showed that defatted BSFLM resulted in deeper orange yolks and improved eggshell quality; however, unfavorable FCR linked to lighter eggs as well as heavier birds and liver warrants further investigations.
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Affiliation(s)
- Zipporah Mwaniki
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1 Canada
| | - Anna K Shoveller
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1 Canada
| | - Lee-Anne Huber
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1 Canada
| | - Elijah G Kiarie
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1 Canada.
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50
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Hirsch R, Wiesner J, Marker A, Pfeifer Y, Bauer A, Hammann PE, Vilcinskas A. Profiling antimicrobial peptides from the medical maggot Lucilia sericata as potential antibiotics for MDR Gram-negative bacteria. J Antimicrob Chemother 2020; 74:96-107. [PMID: 30272195 PMCID: PMC6322280 DOI: 10.1093/jac/dky386] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 08/24/2018] [Indexed: 12/16/2022] Open
Abstract
Background The ability of MDR Gram-negative bacteria to evade even antibiotics of last resort is a severe global challenge. The development pipeline for conventional antibiotics cannot address this issue, but antimicrobial peptides (AMPs) offer an alternative solution. Objectives Two insect-derived AMPs (LS-sarcotoxin and LS-stomoxyn) were profiled to assess their suitability for systemic application in humans. Methods The peptides were tested against an extended panel of 114 clinical MDR Gram-negative bacterial isolates followed by time–kill analysis, interaction studies and assays to determine the likelihood of emerging resistance. In further in vitro studies we addressed cytotoxicity, cardiotoxicity and off-target interactions. In addition, an in vivo tolerability and pharmacokinetic study in mice was performed. Results LS-sarcotoxin and LS-stomoxyn showed potent and selective activity against Gram-negative bacteria and no cross-resistance with carbapenems, fluoroquinolones or aminoglycosides. Peptide concentrations of 4 or 8 mg/L inhibited 90% of the clinical MDR isolates of Escherichia coli, Enterobacter cloacae, Acinetobacter baumannii and Salmonella enterica isolates tested. The ‘all-d’ homologues of the peptides displayed markedly reduced activity, indicating a chiral target. Pharmacological profiling revealed a good in vitro therapeutic index, no cytotoxicity or cardiotoxicity, an inconspicuous broad-panel off-target profile, and no acute toxicity in mice at 10 mg/kg. In mouse pharmacokinetic experiments LS-sarcotoxin and LS-stomoxyn plasma levels above the lower limit of quantification (1 and 0.25 mg/mL, respectively) were detected after 5 and 15 min, respectively. Conclusions LS-sarcotoxin and LS-stomoxyn are suitable as lead candidates for the development of novel antibiotics; however, their pharmacokinetic properties need to be improved for systemic administration.
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Affiliation(s)
- Rolf Hirsch
- Fraunhofer Institute for Molecular Biology and Applied Ecology, Department of Bioresources, Gießen, Germany
- Present address: Evotec International GmbH, Hamburg, Germany
| | - Jochen Wiesner
- Fraunhofer Institute for Molecular Biology and Applied Ecology, Department of Bioresources, Gießen, Germany
| | - Alexander Marker
- Sanofi-Aventis Deutschland GmbH, Industriepark Höchst, Frankfurt, Germany
| | - Yvonne Pfeifer
- Department 1 – Infectious Diseases, Robert Koch Institute, Wernigerode, Germany
| | - Armin Bauer
- Sanofi-Aventis Deutschland GmbH, Industriepark Höchst, Frankfurt, Germany
| | - Peter E Hammann
- Sanofi-Aventis Deutschland GmbH, Industriepark Höchst, Frankfurt, Germany
- Present address: Evotec International GmbH, Hamburg, Germany
| | - Andreas Vilcinskas
- Fraunhofer Institute for Molecular Biology and Applied Ecology, Department of Bioresources, Gießen, Germany
- Institute for Insect Biotechnology, Justus Liebig University of Gießen, Gießen, Germany
- Corresponding author. Tel: +49 641 99 39500; E-mail: orcid.org/0000-0001-8276-4968
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