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Liang Z, Zhu Y, Leonard W, Fang Z. Recent advances in edible insect processing technologies. Food Res Int 2024; 182:114137. [PMID: 38519159 DOI: 10.1016/j.foodres.2024.114137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 02/06/2024] [Accepted: 02/17/2024] [Indexed: 03/24/2024]
Abstract
Alternative foods have emerged as one of the hot research topics aiming at alleviating food shortage. Insects are one of the alternative foods due to their rich nutrients. Processing is a critical step to develop insect foods, while there is a lack of comprehensive reviews to summarize the main studies. This review aims to demonstrate different processing methods in terms of their impact on insect nutrition and their potential risks. Heat treatments such as boiling and blanching show a negative effect on insect nutrition, but essential to assure food safety. Insects treated by high-pressure hydrostatic technology (HPP) and cold atmospheric pressure plasma (CAPP) can achieve a similar sterilization effect but retain the nutritional and sensory properties. Drying is a practical processing method for industrial insect production, where oven drying serves as a cost-effective method yielding products comparable in quality to freeze-dried ones. In terms of extraction technology, supercritical carbon dioxide and ultrasound-assisted technology can improve the extraction efficiency of proteins and lipids from insects, enhance the production of composite insect-fortified foods, and thus facilitate the development of the insect food industry. To address the widespread negative perceptions and low acceptance towards insect foods among consumers, the primary development direction of the insect food industry may involve creating composite fortified foods and extracting insect-based food components.
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Affiliation(s)
- Zijian Liang
- School of Agriculture, Food and Ecosystem Sciences, Faculty of Science, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Yijin Zhu
- School of Agriculture, Food and Ecosystem Sciences, Faculty of Science, The University of Melbourne, Parkville, VIC 3010, Australia; Institute of Agro-Products Processing, Yunnan Academy of Agricultural Sciences, Kunming 65022, China
| | - William Leonard
- School of Agriculture, Food and Ecosystem Sciences, Faculty of Science, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Zhongxiang Fang
- School of Agriculture, Food and Ecosystem Sciences, Faculty of Science, The University of Melbourne, Parkville, VIC 3010, Australia.
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Riaz K, Iqbal T, Khan S, Usman A, Al-Ghamdi MS, Shami A, El Hadi Mohamed RA, Almadiy AA, Al Galil FMA, Alfuhaid NA, Ahmed N, Alam P. Growth Optimization and Rearing of Mealworm ( Tenebrio molitor L.) as a Sustainable Food Source. Foods 2023; 12:foods12091891. [PMID: 37174429 PMCID: PMC10178433 DOI: 10.3390/foods12091891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 04/26/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023] Open
Abstract
As a sustainable food source for humans, mealworms (Tenebrio molitor) have a great deal of potential, due to the fact that they have a very favorable nutritional profile and a low environmental impact. For meal production, feed formulation and optimization are important. The mealworm Tenebrio molitor (Coleoptera: Tenebrionidae) is the most consumed insect in the world. Mealworms were given a variety of diets, including wheat bran as constant diet supplemented with different levels of Ospor (Bacillus clausii) at 0.002 g, 0.004 g, 0.006 g, and 0.008 g; imutec (Lacticaseibacillus rhamnosus) at 0.2 g. 0.4 g, 0.6 g, and 0.8 g; fungi (Calocybe indica) at 250 g, 500 g, and 750 g; yeast (Saccharomyces cerevisiae) at 50 g, 100 g, and 150 g; and wheat bran (standard diet) were examined in complete randomized design (CRD). Different parameters, i.e., the larval, pupal, and adult weight, size, life span, and nutritional profile of mealworm were studied. When compared with other insect growth promoters, only wheat bran was discovered to be the most efficient. It generated the heaviest and longest larvae at 65.03 mg and 18.32 mm, respectively, as well as pupae weighing 107.55 mg and 19.94 mm, respectively, and adults weighing 87.52 mg and 20.26 mm, respectively. It was also determined that fungi (C. indica) and ospor (B. clausii) promoted faster larval development than yeast (S. cerevisiae) and imutec (L. rhamnosus). Larval mortality was also greater in the imutec (L. rhamnosus) and yeast (S. cerevisiae) diets than the others. No pupal mortality was recorded in all diets. Furthermore, the protein content of Tenebrio. molitor raised on a diet including fungi (C. indica) was the highest at (375 g), with a content of 68.31%, followed by a concentration of (250 g) with a content of 67.84%, and wheat bran (1 kg) (normal diet) with the lowest content at 58.91%. T. molitor larvae fed a diet supplemented with bacterial and fungal had lower fat and ash content than bran-fed T. molitor larvae (standard diet). Wheat bran (normal diet) had the highest fat at 16.11%, and ash at 7.71%. Hence, it is concluded that wheat bran alone or diet containing fungi (C. indica) and ospor (B. clausii) performed better in terms of growth, and these diets and protein content are recommended for the mass rearing of mealworms.
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Affiliation(s)
- Kanwal Riaz
- Department of Entomology, Faculty of Plant Protection, The University of Agriculture, Peshawar 25000, Khyber Pakhtunkhwa, Pakistan
| | - Toheed Iqbal
- Department of Entomology, Faculty of Plant Protection, The University of Agriculture, Peshawar 25000, Khyber Pakhtunkhwa, Pakistan
| | - Sarzamin Khan
- Department of Poultry Science, Faculty of Animal Husbandry and Veterinary Sciences, The University of Agriculture, Peshawar 25000, Khyber Pakhtunkhwa, Pakistan
| | - Amjad Usman
- Department of Entomology, Faculty of Plant Protection, The University of Agriculture, Peshawar 25000, Khyber Pakhtunkhwa, Pakistan
| | - Mariam S Al-Ghamdi
- Department of Biology, Faculty of Applied Sciences, Umm Al-Qura University, Makkah 24381, Saudi Arabia
| | - Ashwag Shami
- Department of Biology, College of Sciences, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Rania Ali El Hadi Mohamed
- Department of Biology, College of Sciences, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Abdulrahman A Almadiy
- Department of Biology, Faculty of Arts and Sciences, Najran University, Najran 1988, Saudi Arabia
| | | | - Nawal Abdulaziz Alfuhaid
- Department of Biology, College of Science and Humanities, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Nazeer Ahmed
- Department of Agriculture, University of Swabi, Anbar, Swabi 23561, Khyber Pakhtunkhwa, Pakistan
| | - Pravej Alam
- Department of Biology, College of Science and Humanities, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
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Transgenerational effects of grandparental and parental diets combine with early-life learning to shape adaptive foraging phenotypes in Amblyseius swirskii. Commun Biol 2022; 5:246. [PMID: 35314761 PMCID: PMC8938427 DOI: 10.1038/s42003-022-03200-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 02/28/2022] [Indexed: 11/08/2022] Open
Abstract
Transgenerational effects abound in animals. While a great deal of research has been dedicated to the effects of maternal stressors such as diet deficiency, social deprivation or predation risk on offspring phenotypes, we have a poor understanding of the adaptive value of transgenerational effects spanning across multiple generations under benign conditions and the relative weight of multigenerational effects. Here we show that grandparental and parental diet experiences combine with personal early-life learning to form adaptive foraging phenotypes in adult plant-inhabiting predatory mites Amblyseius swirskii. Our findings provide insights into transgenerational plasticity caused by persistent versus varying conditions in multiple ancestral generations and show that transgenerational effects may be adaptive in non-matching ancestor and offspring environments. Exposure of grandparental and parental predatory mites to either a pollen diet or spider mite prey influences foraging behaviors and learning in progeny.
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Meshulam-Pascoviche D, David-Birman T, Refael G, Lesmes U. Big opportunities for tiny bugs: Processing effects on the techno-functionality and digestibility of edible insects. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2022.02.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Potentiality of Tenebrio molitor larva-based ingredients for the food industry: A review. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2021.11.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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6
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Liceaga AM. Processing insects for use in the food and feed industry. CURRENT OPINION IN INSECT SCIENCE 2021; 48:32-36. [PMID: 34455091 DOI: 10.1016/j.cois.2021.08.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 08/19/2021] [Accepted: 08/20/2021] [Indexed: 06/13/2023]
Abstract
Although insects are becoming more accepted as potential protein sources for food and feed, the appearance of the insect may be off-putting due to associations of disgust. Edible insects are more likely to be eaten if they are processed into non-recognizable forms. Thus, insects require the use of commercial processing methods that will render the protein suitable for food/feed formulation, while maintaining the safety, nutritional and sensory quality of the final product. Common methods that can be used include lipid extraction, enzymatic proteolysis, commercial thermal processing (e.g. blanching, pasteurization, and commercial sterilization), low-temperature processing (refrigeration and freezing), dehydration, and fermentation technology. Each method has advantages and disadvantages that need to be carefully considered as not all processing methods and/or conditions apply to all edible insects or insect flours. This article provides a brief overview of the most commonly used processing methods applicable for insects destined for food and feed.
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Affiliation(s)
- Andrea M Liceaga
- Protein Chemistry and Bioactive Peptide Laboratory, Department of Food Science, Purdue University, 745 Agriculture Mall Dr., 47907, USA.
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7
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Nutritional Properties of Larval Epidermis and Meat of the Edible Insect Clanis bilineata tsingtauica (Lepidoptera: Sphingidae). Foods 2021; 10:foods10122895. [PMID: 34945446 PMCID: PMC8700354 DOI: 10.3390/foods10122895] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 11/16/2021] [Accepted: 11/17/2021] [Indexed: 11/17/2022] Open
Abstract
Insects represent a sustainable, protein-rich food source widely consumed in Asia, Africa, and South America. Eating Clanis bilineata tsingtauica Mell is common in the eastern part of China. A comparative characterization of nutrients in the meat and epidermis of C. bilineata tsingtauica was performed in this study. The results showed this insect to be high in nutrients, particularly in the epidermis where protein total was 71.82%. Sixteen different amino acids were quantified in C. bilineata tsingtauica, and the ratio of essential to nonessential amino acids in the epidermis and meat was 68.14% and 59.27%, respectively. The amino acid composition of C. bilineata tsingtauica is balanced, representing a high-quality protein source. Eight minerals were quantified in C. bilineata tsingtauica, including four macro and four trace elements. Fe in the epidermis and Zn in the meat were abundant at 163.82 and 299.31 μg/g DW, respectively. The presence of phytic acid impacted the absorption of mineral elements in food. We also detected phytic acid in C. bilineata tsingtauica. The molar ratio of phytic acid to zinc (PA/Zn) in C. bilineata tsingtauica was very low (3.28) compared to Glycine max and Cryptotympana atrata, which indicated that mineral utilization was high. In conclusion, this study confirms that C. bilineata tsingtauica is a highly nutritious food source for human consumption, and the results provide a basis for further consumption and industrialization of this edible insect.
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Hermetia illucens fat affects the gastrointestinal tract selected microbial populations, their activity, and the immune status of broiler chickens. ANNALS OF ANIMAL SCIENCE 2021. [DOI: 10.2478/aoas-2021-0071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Abstract
The present study investigated the effect of Hermetia illucens larvae (BSFL) fat, derived using supercritical CO2 extraction and added to broiler chickens’ diets as a partial (50%) or total replacement for commonly used soybean oil, on the gastrointestinal tract (GIT) microbial population, its activity, and selected physiological and immune traits. A total of 576 one-dayold female Ross 308 chicks were randomly assigned to 3 dietary treatments with 16 replicates each. The following treatments were applied: SO – 100% soybean oil, BSFL50 – a mixture of BSFL and soybean oils in a 50:50 ratio, and BSFL100 – 100% BSFL fat. Digesta samples from the crop, jejunum and ceca were collected for further analyses, i.e., pH measurements, fluorescent in situ hybridization, and short-chain fatty acid (SCFA) concentrations. Additionally, the selected plasma biochemical parameters and immunological traits were assessed. In general, the implementation of BSFL fat in broilers’ diets resulted in increased proliferation of potentially pathogenic bacterial populations in the crop, such as Enterobacteriaceae, Bacteroides – Prevotella cluster, and Clostridium perfringens. Furthermore, BSFL100 enhanced microbial activity via total SCFA production and lowered the pH in this segment. However, no detrimental effects were observed in terms of other GIT segments, i.e., the jejunal and cecal microecosystems. The strongest impact on reduction of select components of the microbial population in the cecum was observed with the BSFL50 treatment for potentially pathogenic bacteria such as Enterobacteriaceae, Bacteroides – Prevotella cluster, while commensal populations were also limited, i.e., Bacillus spp., C.
leptum subgroup, and C.
coccoides – Eubacterium
rectale cluster. Additionally, BSFL100 reduced the cholesterol concentration in the blood, while both experimental treatments decreased the ALT level. In conclusion, due to the insufficient release of lauric acid from the BSFL fat in the crop, an adverse shift in the microbiota can be noted. However, a positive suppressive effect on the select components of the cecal microbiota, as well as improvement of liver health suggests implying the BSFL fat in broiler nutrition.
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Tobolková B, Takáč P, Mangová B, Kozánek M. A comparative study of colour characteristics of thermally/non-thermally treated mealworm larvae (Tenebrio molitor) by means of UV/Vis spectroscopy and multivariate analysis. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2021. [DOI: 10.1007/s11694-021-00957-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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10
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Selaledi L, Mabelebele M. The Influence of Drying Methods on the Chemical Composition and Body Color of Yellow Mealworm ( Tenebrio molitor L.). INSECTS 2021; 12:insects12040333. [PMID: 33917808 PMCID: PMC8068098 DOI: 10.3390/insects12040333] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/31/2021] [Accepted: 04/03/2021] [Indexed: 11/16/2022]
Abstract
To preserve the quality of the yellow mealworm, different drying methods are being explored by farmers and processors. However, the energy costs associated with these methods are usually high for smallholder insect-rearing farmers. Thus, the core aim of this study was to investigate different drying procedures and their impact on the chemical composition of yellow mealworm larvae. Yellow mealworms (exposed to sun, oven and freeze drying) were later analyzed for their chemical composition and body color. Crude protein (CP) content of freeze and oven-dried mealworms were similar (p > 0.05), but higher (p < 0.05) than those of the sun-dried samples. The b (yellowness) color of the sun-dried samples scored the lowest value (p < 0.05) in comparison with both oven and freeze-dried samples. The majority of the essential amino acids were higher (p < 0.05) in the sun-dried mealworms than both oven and freeze-dried samples. Similarly, the fat content of sun-dried mealworms was higher (p < 0.05) than if they had been oven or freeze dried. However, SFA (saturated fatty acids), PUFA (polyunsaturated fatty acids) and n-6 fatty acids were similar (p > 0.05) for all drying methods. We, therefore, conclude that sun drying resulted in the same nutritional composition as freeze and oven drying despite the noted color changes. Freeze and oven-drying strategies can be used to formulate mealworm-based feed and food products without noticeable nutritional changes. For the benefit of small-scale insect-rearing farmers, an appropriate drying technology that is affordable and easy to use should be developed considering the needs and experiences of these farmers.
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Affiliation(s)
- Letlhogonolo Selaledi
- Department of Agriculture and Animal Health, College of Agriculture and Environmental Science, University of South Africa, Florida Campus, 28 Pioneer Ave, Florida Park, Roodepoort 1709, South Africa;
- Department of Zoology and Entomology, Mammal Research Institute, Faculty of Natural and Agricultural Sciences, University of Pretoria, Hatfield, Pretoria 0002, South Africa
| | - Monnye Mabelebele
- Department of Agriculture and Animal Health, College of Agriculture and Environmental Science, University of South Africa, Florida Campus, 28 Pioneer Ave, Florida Park, Roodepoort 1709, South Africa;
- Correspondence:
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11
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Khampakool A, Soisungwan S, You S, Park SH. Infrared Assisted Freeze-Drying (IRAFD) to Produce Shelf-Stable Insect Food from Protaetia brevitarsis (White-Spotted Flower Chafer) Larva. Food Sci Anim Resour 2020; 40:813-830. [PMID: 32968732 PMCID: PMC7492168 DOI: 10.5851/kosfa.2020.e60] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 07/28/2020] [Accepted: 07/28/2020] [Indexed: 11/06/2022] Open
Abstract
In this study, the potential of infrared assisted freeze-drying (IRAFD) was
tested for the production of shelf-stable edible insects: Protaetia
brevitarsis larva (larva of white-spotted flower chafer). The IRAFD
system was customized using an infrared lamp, K-type thermocouple, controller,
and data acquisition system. The infrared lamp provided the sublimation energy
for rapid freeze-drying (FD). The IRAFD conditions were continuous IRAFD-5.0
kW/m2 and IRAFD-5.0 kW/m2 at different weight
reduction (WR) (10%, 20%, and 30%). The continuous IRAFD
reduced the drying time to 247 min compared to the 2,833 min duration of FD
(p<0.05). The electrical energy could be reduced by more than 90%
through infrared radiation during FD (p<0.05). The Page model resulted in
the best prediction among the tested drying kinetic models. In terms of quality,
IRAFD showed significantly lower hardness, chewiness, and higher protein levels
than hot air drying and FD (p<0.05). IRAFD better preserved the glutamic
acid (6.30–7.29 g/100 g) and proline (3.84–5.54 g/100 g). The
external product appearance after IRAFD exhibited more air pockets and volume
expansion, which might result in a good consumer appeal. In conclusion, this
study reports the potential of IRAFD in producing shelf-stable and value-added
edible insects.
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Affiliation(s)
- Apinya Khampakool
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, Gangneung 25457, Korea
| | - Salinee Soisungwan
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, Gangneung 25457, Korea
| | - SangGuan You
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, Gangneung 25457, Korea
| | - Sung Hee Park
- Department of Food Science and Technology, Seoul National University of Science and Technology, Seoul 01811, Korea
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Impacts of Killing Process on the Nutrient Content, Product Stability and In Vitro Digestibility of Black Soldier Fly (Hermetia illucens) Larvae Meals. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10176099] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The black soldier fly (BSF, Hermetia illucens) is considered a potential sustainable insect alternative source of protein for animal feed. The quality of a BSF meal is greatly influenced by the killing method and the purpose of this article is to compare the influences of different killing methods. BSFs at the 18-day-old prepupae stage were separated into six different killing methods with three replicates: 1. blending, 2. freezing, 3. CO2 treatment, 4. vacuum, 5. blanching and 6. CO2 plus blanching. After killing, BSF larvae meals were obtained by hot air oven drying and grinding. The chemical composition and in vitro digestibility calculated from sediments were not affected by the killing method, except that blending provided the worst BSF quality for all measured parameters (p < 0.05). The highest quality of BSF was obtained from the heat treatment procedures (blanching and the CO2 plus blanching methods), as they produced lower acidity after killing, total viable counts, browning reaction (enzymatic and non-enzymatic), darkness, moisture, fat acidity, protein and lipid oxidation during storage compared with other killing procedures (p < 0.05). Interestingly, the highest free amino acids in the supernatant after in vitro digestibility of BSF samples was observed with the CO2 plus blanching killing method (p < 0.05), whereas other parameters were similar to those obtained with blanching. The CO2 plus blanching method did not produce clearly different outcomes to blanching; therefore, the selection of one of these techniques over the other should depend on the regulations in each country.
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Benzertiha A, Kierończyk B, Kołodziejski P, Pruszyńska-Oszmałek E, Rawski M, Józefiak D, Józefiak A. Tenebrio molitor and Zophobas morio full-fat meals as functional feed additives affect broiler chickens' growth performance and immune system traits. Poult Sci 2020; 99:196-206. [PMID: 32416801 PMCID: PMC7587814 DOI: 10.3382/ps/pez450] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 08/23/2019] [Indexed: 11/20/2022] Open
Abstract
This study was conducted to investigate the effect of insect full-fat meals (Tenebrio molitor and Zophobas morio larvae), added "on top" of a complete diet or calculated into diets, on the growth performance, selected blood, and immune system traits of broiler chickens. 1,000 one-day-old female Ross 308 broiler chicks were used in 2 independent experiments. In the first trial, the birds were randomly assigned to 6 treatments, 10 replicate pens per treatment, and 10 birds per pen, i.e., negative control; positive control with salinomycin addition (60 mg/kg diet), and addition of 0.2% and 0.3% of T. molitor and Z. morio full-fat meals "on top". In the second experiment, 4 treatments, 10 replicate pens per treatment, and 10 birds per pen were set, i.e., negative control, positive control with salinomycin addition (60 mg/kg diet), and 0.3% of T. molitor and Z. morio full-fat meals calculated in the diets. In both trials the supplementation of insects increased the BWG (Exp. 1: P = 0.024; Exp. 2: P = 0.046) and FI (Exp. 1: P = 0.022; Exp. 2: P = 0.026), and no negative effect on the FCR was recorded in experiment one (P = 0.514), however in second trial insects addition increased FCR values (P = 0.011). In addition, in the first trial, groups fed insects and PC comparing to NC decreased the IgY (P = 0.045) and IgM, (P < 0.001) levels. In the second experiment, IgM levels were also decreased (P < 0.001) in groups fed insects comparing to NC. Moreover, in first trial the IgM levels were negatively correlated to the BWG (r = -0.4845) and FI (r = -0.4986), with statistically significant values (P < 0.001). In conclusion, the current results confirmed that small amount addition (0.2% and 0.3%) of T. molitor and Z. morio full-fat meals to the diet of broiler chickens can improve growth performance and change selected the immune system traits.
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Affiliation(s)
- A Benzertiha
- Department of Animal Nutrition, Poznań University of Life Sciences, Wołyńska 33, 60-637 Poznań, Poland; HiProMine S.A., Poznańska 8, 62-023 Robakowo, Poland
| | - B Kierończyk
- Department of Animal Nutrition, Poznań University of Life Sciences, Wołyńska 33, 60-637 Poznań, Poland
| | - P Kołodziejski
- Department of Animal Physiology and Biochemistry, Poznań University of Life Sciences, Wołyńska 33, 60-637 Poznań, Poland
| | - E Pruszyńska-Oszmałek
- Department of Animal Physiology and Biochemistry, Poznań University of Life Sciences, Wołyńska 33, 60-637 Poznań, Poland
| | - M Rawski
- Department of Animal Nutrition, Poznań University of Life Sciences, Wołyńska 33, 60-637 Poznań, Poland; Division of Inland Fisheries and Aquaculture, Poznań University of Life Sciences, Wojska Polskiego 71c, 60-625 Poznań, Poland
| | - D Józefiak
- Department of Animal Nutrition, Poznań University of Life Sciences, Wołyńska 33, 60-637 Poznań, Poland; HiProMine S.A., Poznańska 8, 62-023 Robakowo, Poland
| | - A Józefiak
- Department of Preclinical Sciences and Infectious Diseases, Poznań University of Life Sciences, Wołyńska 35, 60-637 Poznań, Poland.
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Cao X, Chen J, Islam MN, Xu W, Zhong S. Effect of Intermittent Microwave Volumetric Heating on Dehydration, Energy Consumption, Antioxidant Substances, and Sensory Qualities of Litchi Fruit during Vacuum Drying. Molecules 2019; 24:molecules24234291. [PMID: 31775311 PMCID: PMC6930454 DOI: 10.3390/molecules24234291] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 11/21/2019] [Accepted: 11/22/2019] [Indexed: 01/27/2023] Open
Abstract
To examine the processing characteristics and high quality of an improved microwave vacuum drying system, litchi fruits were dried using intermittent microwave volumetric heating while microwave vacuum drying at 2 W/g was carried out for comparison; the intermittent microwave heating profiles were set as (1) 5 min drying-on, 5 min drying-off; (2) 5 min drying-on, 10 min drying-off; and (3) 5 min drying-on, 15 min drying-off. Energy consumption during drying was determined, and physicochemical properties such as moisture content, vitamin C, total phenolics, color, and sensory evaluation of dried products were assessed. In microwave vacuum drying, intermittent microwave volumetric heating was found to be energy-efficient (about 32 KJ/g to 45 KJ/g) and saved at least 31% of energy consumption compared with microwave vacuum drying as well as decreasing product browning. In addition, microwave volumetric heating had no substantial effects on sugar and protein contents, while antioxidants were affected significantly (p ≤ 0.05). Moreover, sensory evaluation showed that intermittent microwave-assisted vacuum drying (IMVD) increased the acceptance of the dried product compared with microwave vacuum drying (MVD).
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Affiliation(s)
- Xiaohuang Cao
- College of Food and Technology, Guangdong Ocean University, Zhanjiang 524000, China; (X.C.); (J.C.)
| | - Jianping Chen
- College of Food and Technology, Guangdong Ocean University, Zhanjiang 524000, China; (X.C.); (J.C.)
| | - Md. Nahidul Islam
- Department of Food Science, Aarhus University, Kirstinebjergvej 10, DK-5792 Aarslev, Denmark;
| | - Wanxiu Xu
- College of engineering, Zhejiang Normal University, Jinhua 321004, China
- Correspondence: (W.X.); (S.Z.); Tel.: +86-(0)579-8228-8685 (W.X.); +86-188-2669-9336 (S.Z.)
| | - Saiyi Zhong
- College of Food and Technology, Guangdong Ocean University, Zhanjiang 524000, China; (X.C.); (J.C.)
- Correspondence: (W.X.); (S.Z.); Tel.: +86-(0)579-8228-8685 (W.X.); +86-188-2669-9336 (S.Z.)
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15
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Cao X, Islam MN, Zhong S, Pan X, Song M, Shang F, Nie H, Xu W, Duan Z. Drying kinetics, antioxidants, and physicochemical properties of litchi fruits by ultrasound-assisted hot air-drying. J Food Biochem 2019; 44:e13073. [PMID: 31637748 DOI: 10.1111/jfbc.13073] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 08/11/2019] [Accepted: 09/17/2019] [Indexed: 11/29/2022]
Abstract
To obtain better qualities of litchi fruits, fruit pulps were subjected to ultrasonic treatment (UT) followed by drying. Samples were subjected to UT at 3 W/g for 10 min with distilled or ice water and compared with non-UT dried samples. After drying, vitamin C, total phenolic content, color, texture, nutrition, microbial load, drying kinetics, and shelf life were assessed. Results suggest that shear stress plus increasing heat reduced drying time by about 50%, and retained 70% vitamin C and 60% total phenolic content. UT led to about 75% of vitamin C and 70% total phenolic content through inhibition of ultrasonic heat. No significant differences were found in redness, yellowness, and hardness. Inhibition of ultrasound heat resulted in about 27% glucose, 22% fructose, 17% sucrose, and prolonged storage time. Inhibition of increasing ultrasound heat allows low drying cost and high product quality of litchi fruit in air-drying. PRACTICAL APPLICATIONS: UT promotes drying efficiency and preserves product quality. However, this treatment triggers the loss of antioxidants and sugars of litchi fruits when water temperature arises in the treatment. Additional use of ice crystals can offset the thermal effect of the UT; this mechanism reduces the diffusion and loss of nutrients from the material to the solution. This strategy is simple and feasible to improve the drying rate and to retain the content of antioxidants, and further improve the flavor and storage quality of dried litchi fruits.
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Affiliation(s)
- Xiaohuang Cao
- Guangdong Provincial Science and Technology Innovation Center for Subtropical Fruit and Vegetable Processing, Guangdong Ocean University, Zhanjiang, China.,Guangxi Talent Highland of Preservation and Deep Processing Research in Fruit and Vegetable, Hezhou University, Hezhou, China
| | | | - Saiyi Zhong
- Guangdong Provincial Science and Technology Innovation Center for Subtropical Fruit and Vegetable Processing, Guangdong Ocean University, Zhanjiang, China
| | - Xinxiang Pan
- Guangdong Provincial Science and Technology Innovation Center for Subtropical Fruit and Vegetable Processing, Guangdong Ocean University, Zhanjiang, China
| | - Mubo Song
- Guangxi Talent Highland of Preservation and Deep Processing Research in Fruit and Vegetable, Hezhou University, Hezhou, China
| | - Feifei Shang
- Guangxi Talent Highland of Preservation and Deep Processing Research in Fruit and Vegetable, Hezhou University, Hezhou, China
| | - Hui Nie
- Guangxi Talent Highland of Preservation and Deep Processing Research in Fruit and Vegetable, Hezhou University, Hezhou, China
| | - Wanxiu Xu
- College of Food and Technology, Zhejiang Normal University, Jinhua, China
| | - Zhenhua Duan
- Guangxi Talent Highland of Preservation and Deep Processing Research in Fruit and Vegetable, Hezhou University, Hezhou, China
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16
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Melis R, Braca A, Sanna R, Spada S, Mulas G, Fadda ML, Sassu MM, Serra G, Anedda R. Metabolic response of yellow mealworm larvae to two alternative rearing substrates. Metabolomics 2019; 15:113. [PMID: 31422484 DOI: 10.1007/s11306-019-1578-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 08/10/2019] [Indexed: 02/03/2023]
Abstract
INTRODUCTION Mass insect rearing is becoming increasingly pursued by food and feed industry due to its high sustainability and low environmental impact. Yellow mealworm larvae (Tenebrio molitor) are conventionally reared on wheat bran (WB), but alternative substrates, such as several by-products of the agri-food industry, have shown good prospects for insect rearing. OBJECTIVES The objective of this study was to investigate on the metabolic and nutritional response of yellow mealworm larvae to dried brewer's spent grains (BSG) and WB used as rearing substrates. METHODS Proximate, fibre and fatty acid compositions of durum WB and dried BSG were first characterized. Mealworm larvae were fed either WB (WB-L) or BSG (BSG-L) in a trial reproducing a scale rearing condition. Feed efficiency parameters together with proximate and FA composition were determined. Metabolic pathways affected by the dietary treatments were evaluated by means of a targeted metabolomics approach. Proton nuclear magnetic resonance (1H NMR) spectra were acquired on lipid and polar extracts of WB-L and BSG-L and then coupled to multivariate data analysis. Absolute quantitative 1H NMR data were carried out on selected metabolites. RESULTS BSG-L exhibited better feed conversion ratio and efficiency in conversion of ingested food (P < 0.05) and almost half fat content (P < 0.001) than WB-L. BSG-L also showed higher ω-3 and ω-6 poliunsaturated fatty acids (P < 0.001) and lower content of monounsaturated fatty acids (P < 0.001) than WB-L. BSG-L mobilized body fat towards methylamine accumulation and led to enhanced trehalose catabolism. CONCLUSIONS Our findings are useful to gain knowledge on the metabolic features that finally affect growth and body composition in reared yellow mealworm larvae.
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Affiliation(s)
- Riccardo Melis
- Porto Conte Ricerche S. r. l, S.P. 55 Porto Conte - Capo Caccia, Km 8.400, Loc. Tramariglio, Alghero, SS, Italy
| | - Angela Braca
- Porto Conte Ricerche S. r. l, S.P. 55 Porto Conte - Capo Caccia, Km 8.400, Loc. Tramariglio, Alghero, SS, Italy
| | - Roberta Sanna
- Porto Conte Ricerche S. r. l, S.P. 55 Porto Conte - Capo Caccia, Km 8.400, Loc. Tramariglio, Alghero, SS, Italy
| | - Simona Spada
- Porto Conte Ricerche S. r. l, S.P. 55 Porto Conte - Capo Caccia, Km 8.400, Loc. Tramariglio, Alghero, SS, Italy
| | - Gilberto Mulas
- Porto Conte Ricerche S. r. l, S.P. 55 Porto Conte - Capo Caccia, Km 8.400, Loc. Tramariglio, Alghero, SS, Italy
| | - Maria Leonarda Fadda
- CNR - Research Institute on Terrestrial Ecosystems, Traversa la Crucca, 3 Li punti, Sassari, SS, Italy
| | - Maria Maddalena Sassu
- CNR - Institute for the Animal Production System in the Mediterranean Environment, Traversa la Crucca, 3 Li punti, Sassari, SS, Italy
| | - Giuseppe Serra
- CNR - Institute of Biometeorology, Traversa la Crucca, 3 Li punti, Sassari, SS, Italy
| | - Roberto Anedda
- Porto Conte Ricerche S. r. l, S.P. 55 Porto Conte - Capo Caccia, Km 8.400, Loc. Tramariglio, Alghero, SS, Italy.
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17
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Melgar‐Lalanne G, Hernández‐Álvarez A, Salinas‐Castro A. Edible Insects Processing: Traditional and Innovative Technologies. Compr Rev Food Sci Food Saf 2019; 18:1166-1191. [DOI: 10.1111/1541-4337.12463] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 05/12/2019] [Accepted: 05/15/2019] [Indexed: 01/01/2023]
Affiliation(s)
- Guiomar Melgar‐Lalanne
- Author Melgar‐Lalane is with Inst. de Ciencias BásicasUniv. Veracruzana Av. Dr. Luis Castelazo Ayala s/n. Col Industrial Ánimas 91192 Xalapa Veracruz Mexico
| | | | - Alejandro Salinas‐Castro
- Author Salinas‐Castro is with Dirección General de InvestigacionesAv. Dr. Luis Castelazo Ayala s/n. Col Industrial Ánimas 91192 Xalapa Veracruz Mexico
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18
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Larouche J, Deschamps MH, Saucier L, Lebeuf Y, Doyen A, Vandenberg GW. Effects of Killing Methods on Lipid Oxidation, Colour and Microbial Load of Black Soldier Fly ( Hermetia illucens) Larvae. Animals (Basel) 2019; 9:E182. [PMID: 31010069 PMCID: PMC6523926 DOI: 10.3390/ani9040182] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 04/13/2019] [Accepted: 04/15/2019] [Indexed: 11/30/2022] Open
Abstract
Black soldier fly (BSF) larvae represent a promising alternative ingredient for animal feed. Post-production processing can, however, affect their quality. This project aimed to optimize larval killing by comparing the effects on the nutritional and microbiological quality of 10 methods, i.e., blanching (B = 40 s), desiccation (D = 60 °C, 30 min), freezing (F20 = -20 °C, 1 h; F40 = -40 °C, 1 h; N = liquid nitrogen, 40 s), high hydrostatic pressure (HHP = 3 min, 600 MPa), grinding (G = 2 min) and asphyxiation (CO2 = 120 h; N2 = 144 h; vacuum conditioning, V = 120 h). Some methods affected the pH (B, asphyxiation), total moisture (B, asphyxiation and D) and ash contents (B, p < 0.001). The lipid content (asphyxiation) and their oxidation levels (B, asphyxiation and D) were also affected (p < 0.001). Killing methods altered the larvae colour during freeze-drying and in the final product. Blanching appears to be the most appropriate strategy since it minimizes lipid oxidation (primary = 4.6 ± 0.7 mg cumen hydroperoxide (CHP) equivalents/kg; secondary = 1.0 ± 0.1 mg malondialdehyde/kg), reduces microbial contamination and initiates dehydration (water content = 78.1 ± 1.0%). We propose herein, an optimized protocol to kill BSF that meet the Canadian regulatory requirements of the insect production and processing industry.
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Affiliation(s)
- Jennifer Larouche
- Département des Sciences Animales, Pavillon Paul-Comtois Université Laval, Quebec, QC G1V 0A6, Canada.
| | - Marie-Hélène Deschamps
- Département des Sciences Animales, Pavillon Paul-Comtois Université Laval, Quebec, QC G1V 0A6, Canada.
| | - Linda Saucier
- Département des Sciences Animales, Pavillon Paul-Comtois Université Laval, Quebec, QC G1V 0A6, Canada.
| | - Yolaine Lebeuf
- Département des Sciences Animales, Pavillon Paul-Comtois Université Laval, Quebec, QC G1V 0A6, Canada.
| | - Alain Doyen
- Département des Sciences des Aliments, Pavillon Paul-Comtois Université Laval, Quebec, QC G1V 0A6, Canada.
| | - Grant W Vandenberg
- Département des Sciences Animales, Pavillon Paul-Comtois Université Laval, Quebec, QC G1V 0A6, Canada.
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19
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Kröncke N, Grebenteuch S, Keil C, Demtröder S, Kroh L, Thünemann AF, Benning R, Haase H. Effect of Different Drying Methods on Nutrient Quality of the Yellow Mealworm ( Tenebrio molitor L.). INSECTS 2019; 10:insects10040084. [PMID: 30934687 PMCID: PMC6523706 DOI: 10.3390/insects10040084] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 03/19/2019] [Accepted: 03/22/2019] [Indexed: 11/29/2022]
Abstract
Yellow mealworm (Tenebrio molitor L.) represents a sustainable source of proteins and fatty acids for feed and food. Industrial production of mealworms necessitates optimized processing techniques, where drying as the first postharvest procedure is of utmost importance for the quality of the final product. This study examines the nutritional quality of mealworm larvae processed by rack oven drying, vacuum drying or freeze drying, respectively. Proximate composition and fatty acid profile were comparable between the dried larvae. In contrast, larvae color impressions and volatile compound profiles were very much dependent on processing procedure. High-temperature rack oven drying caused pronounced darkening with rather low content of volatiles, pointing toward the progress of Maillard reaction. On the other hand, vacuum drying or freeze drying led to enrichment of volatile Maillard reaction and lipid oxidation intermediates, whose actual sensory relevance needs to be clarified in the future. Beyond sensory and visual importance drying intermediates have to be considered with regard to their metal ion chelating ability; in particular for essential trace elements such as Zn2+. This study found comparable total zinc contents for the differently dried mealworm samples. However, dried larvae, in particular after rack oven drying, had only low zinc accessibility, which was between 20% and 40%. Therefore, bioaccessibility rather than total zinc has to be considered when their contribution to meeting the nutritional requirements for zinc in humans and animals is evaluated.
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Affiliation(s)
- Nina Kröncke
- Institute of Food Technology and Bioprocess Engineering, University of Applied Sciences Bremerhaven, An der Karlstadt 8, 27568 Bremerhaven, Germany.
| | - Sandra Grebenteuch
- Department Food Chemistry and Analytics, Institute of Food Technology and Food Chemistry, TU Berlin, Gustav-Meyer-Allee 25, 13355 Berlin, Germany.
| | - Claudia Keil
- Department Food Chemistry and Toxicology, Institute of Food Technology and Food Chemistry, TU Berlin, Gustav-Meyer-Allee 25, 13355 Berlin, Germany.
| | - Sebastian Demtröder
- Department Food Chemistry and Analytics, Institute of Food Technology and Food Chemistry, TU Berlin, Gustav-Meyer-Allee 25, 13355 Berlin, Germany.
| | - Lothar Kroh
- Department Food Chemistry and Toxicology, Institute of Food Technology and Food Chemistry, TU Berlin, Gustav-Meyer-Allee 25, 13355 Berlin, Germany.
| | - Andreas F Thünemann
- Federal Institute for Materials Research and Testing (BAM), Unter den Eichen 87, 12205 Berlin, Germany.
| | - Rainer Benning
- Institute of Food Technology and Bioprocess Engineering, University of Applied Sciences Bremerhaven, An der Karlstadt 8, 27568 Bremerhaven, Germany.
| | - Hajo Haase
- Department Food Chemistry and Toxicology, Institute of Food Technology and Food Chemistry, TU Berlin, Gustav-Meyer-Allee 25, 13355 Berlin, Germany.
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