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Hăbeanu M, Gheorghe A, Dinita G, Mihalcea T. An In-Depth Insight into the Profile, Mechanisms, Functions, and Transfer of Essential Amino Acids from Mulberry Leaves to Silkworm Bombyx mori L. Pupae and Fish. INSECTS 2024; 15:332. [PMID: 38786888 PMCID: PMC11122254 DOI: 10.3390/insects15050332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 04/25/2024] [Accepted: 05/03/2024] [Indexed: 05/25/2024]
Abstract
The silkworm Bombyx mori, the second most varied group of insects, is a fascinating insect that belongs to the Lepidoptera species. We aimed to deepen our knowledge about the composition and significance of amino acids (AA) from the sericulture chain to fish. AAs are the most prevalent molecules throughout the growth process of silkworms. We described AAs classification, occurrence, metabolism, and functions. Online datasets revealed that the essential AAs (EAA) level in fish meal and silkworm pupae (SWP) is comparable. SWP have a high content of methionine and lysine, which are the principal limiting AAs in fish diets, indicating that SWP have nutritional potential to be added to fish diets. Additionally, an overview of the data analyzed displays that SWP have a higher protein efficiency ratio than fish meal, the classical protein-rich source (>1.19 times), and compared to soybean meal, the second-most preferred source of protein in aquaculture (>2.08 times), indicating that SWP can be considered effective for animal feeding. In this study, we provide an overview of the current knowledge concerning AAs, paying special emphasis to EAAs and explaining, to some extent, certain mechanisms and functions of these compounds, from mulberry leaves to larvae-pupae and fish diets.
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Affiliation(s)
- Mihaela Hăbeanu
- Research Station for Sericulture Baneasa, 013685 Bucharest, Romania; (A.G.); (T.M.)
| | - Anca Gheorghe
- Research Station for Sericulture Baneasa, 013685 Bucharest, Romania; (A.G.); (T.M.)
| | - Georgeta Dinita
- Faculty of Animal Productions Engineering and Management, University of Agronomic Sciences and Veterinary Medicine of Bucharest, 59 Marasti Blvd., District 1, 011464 Bucharest, Romania;
| | - Teodor Mihalcea
- Research Station for Sericulture Baneasa, 013685 Bucharest, Romania; (A.G.); (T.M.)
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Wang Z, Li G, Liu X. Identification of Corn Peptides with Alcohol Dehydrogenase Activating Activity Absorbed by Caco-2 Cell Monolayers. Molecules 2024; 29:1523. [PMID: 38611803 PMCID: PMC11013139 DOI: 10.3390/molecules29071523] [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: 02/27/2024] [Revised: 03/23/2024] [Accepted: 03/26/2024] [Indexed: 04/14/2024] Open
Abstract
Alcohol dehydrogenase (ADH) plays a pivotal role in constraining alcohol metabolism. Assessing the ADH-activating activity in vitro can provide insight into the capacity to accelerate ethanol metabolism in vivo. In this study, ADH-activating peptides were prepared from corn protein meal (CGM) using enzymatic hydrolysis, and these peptides were subsequently identified following simulated gastrointestinal digestion and their absorption through the Caco-2 cell monolayer membrane. The current investigation revealed that corn protein hydrolysate hydrolyzed using alcalase exhibited the highest ADH activation capability, maintaining an ADH activation rate of 52.93 ± 2.07% following simulated gastrointestinal digestion in vitro. After absorption through the Caco-2 cell monolayer membrane, ADH-activating peptides were identified. Among them, SSNCQPF, TGCPVLQ, and QPQQPW were validated to possess strong ADH activation activity, with EC50 values of 1.35 ± 0.22 mM, 2.26 ± 0.16 mM, and 2.73 ± 0.13 mM, respectively. Molecular Docking revealed that the activation of ADH occurred via the formation of a stable complex between the peptide and the active center of ADH by hydrogen bonds and hydrophobic interactions. The results of this study also suggest that corn protein hydrolysate could be a novel functional dietary element that helps protects the liver from damage caused by alcohol and aids in alcohol metabolism.
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Affiliation(s)
- Zhe Wang
- College of Food Engineering, Harbin University of Commerce, Harbin 150076, China;
- Key Laboratory of Corn Deep Processing Theory and Technology of Heilongjiang Province, College of Food and Bioengineering, Qiqihar University, Qiqihar 161006, China;
| | - Guanlong Li
- Key Laboratory of Corn Deep Processing Theory and Technology of Heilongjiang Province, College of Food and Bioengineering, Qiqihar University, Qiqihar 161006, China;
| | - Xiaolan Liu
- College of Food Engineering, Harbin University of Commerce, Harbin 150076, China;
- Key Laboratory of Corn Deep Processing Theory and Technology of Heilongjiang Province, College of Food and Bioengineering, Qiqihar University, Qiqihar 161006, China;
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Li Z, Li Y, Zhao Y, Wang G, Liu R, Li Y, Aftab Q, Sun Z, Zhong Q. Effects of the kinetic pattern of dietary glucose release on nitrogen utilization, the portal amino acid profile, and nutrient transporter expression in intestinal enterocytes in piglets. J Anim Sci Biotechnol 2024; 15:49. [PMID: 38500230 PMCID: PMC10946174 DOI: 10.1186/s40104-024-01000-z] [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: 11/07/2023] [Accepted: 01/17/2024] [Indexed: 03/20/2024] Open
Abstract
BACKGROUND Promoting the synchronization of glucose and amino acid release in the digestive tract of pigs could effectively improve dietary nitrogen utilization. The rational allocation of dietary starch sources and the exploration of appropriate dietary glucose release kinetics may promote the dynamic balance of dietary glucose and amino acid supplies. However, research on the effects of diets with different glucose release kinetic profiles on amino acid absorption and portal amino acid appearance in piglets is limited. This study aimed to investigate the effects of the kinetic pattern of dietary glucose release on nitrogen utilization, the portal amino acid profile, and nutrient transporter expression in intestinal enterocytes in piglets. METHODS Sixty-four barrows (15.00 ± 1.12 kg) were randomly allotted to 4 groups and fed diets formulated with starch from corn, corn/barley, corn/sorghum, or corn/cassava combinations (diets were coded A, B, C, or D respectively). Protein retention, the concentrations of portal amino acid and glucose, and the relative expression of amino acid and glucose transporter mRNAs were investigated. In vitro digestion was used to compare the dietary glucose release profiles. RESULTS Four piglet diets with different glucose release kinetics were constructed by adjusting starch sources. The in vivo appearance dynamics of portal glucose were consistent with those of in vitro dietary glucose release kinetics. Total nitrogen excretion was reduced in the piglets in group B, while apparent nitrogen digestibility and nitrogen retention increased (P < 0.05). Regardless of the time (2 h or 4 h after morning feeding), the portal total free amino acids content and contents of some individual amino acids (Thr, Glu, Gly, Ala, and Ile) of the piglets in group B were significantly higher than those in groups A, C, and D (P < 0.05). Cluster analysis showed that different glucose release kinetic patterns resulted in different portal amino acid patterns in piglets, which decreased gradually with the extension of feeding time. The portal His/Phe, Pro/Glu, Leu/Val, Lys/Met, Tyr/Ile and Ala/Gly appeared higher similarity among the diet treatments. In the anterior jejunum, the glucose transporter SGLT1 was significantly positively correlated with the amino acid transporters B0AT1, EAAC1, and CAT1. CONCLUSIONS Rational allocation of starch resources could regulate dietary glucose release kinetics. In the present study, group B (corn/barley) diet exhibited a better glucose release kinetic pattern than the other groups, which could affect the portal amino acid contents and patterns by regulating the expression of amino acid transporters in the small intestine, thereby promoting nitrogen deposition in the body, and improving the utilization efficiency of dietary nitrogen.
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Affiliation(s)
- Zexi Li
- Jilin Province Key Laboratory of Animal Nutrition and Feed Science, College of Animal Science and Technology, Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, 2888 Xincheng Street, Changchun City, Jilin Province, People's Republic of China
| | - Yunfei Li
- Jilin Province Key Laboratory of Animal Nutrition and Feed Science, College of Animal Science and Technology, Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, 2888 Xincheng Street, Changchun City, Jilin Province, People's Republic of China
| | - Yufei Zhao
- Jilin Province Key Laboratory of Animal Nutrition and Feed Science, College of Animal Science and Technology, Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, 2888 Xincheng Street, Changchun City, Jilin Province, People's Republic of China
| | - Guifu Wang
- Jilin Province Key Laboratory of Animal Nutrition and Feed Science, College of Animal Science and Technology, Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, 2888 Xincheng Street, Changchun City, Jilin Province, People's Republic of China
| | - Rujie Liu
- Jilin Province Key Laboratory of Animal Nutrition and Feed Science, College of Animal Science and Technology, Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, 2888 Xincheng Street, Changchun City, Jilin Province, People's Republic of China
| | - Yue Li
- Dongfeng County Sika Deer Industry Development Service Center, Dongfeng County, Liaoyuan City, Jilin Province, China
| | - Qamar Aftab
- Jilin Province Key Laboratory of Animal Nutrition and Feed Science, College of Animal Science and Technology, Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, 2888 Xincheng Street, Changchun City, Jilin Province, People's Republic of China
| | - Zewei Sun
- Jilin Province Key Laboratory of Animal Nutrition and Feed Science, College of Animal Science and Technology, Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, 2888 Xincheng Street, Changchun City, Jilin Province, People's Republic of China.
| | - Qingzhen Zhong
- Jilin Province Key Laboratory of Animal Nutrition and Feed Science, College of Animal Science and Technology, Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, 2888 Xincheng Street, Changchun City, Jilin Province, People's Republic of China.
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Chang YB, Kim H, Lee SK, Kim HJ, Jeong AH, Suh HJ, Ahn Y. Characteristics and Absorption Rate of Whey Protein Hydrolysates Prepared Using Flavourzyme after Treatment with Alcalase and Protamex. Molecules 2023; 28:7969. [PMID: 38138458 PMCID: PMC10745520 DOI: 10.3390/molecules28247969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/28/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023] Open
Abstract
The purpose of this study was to evaluate the physicochemical properties of whey protein hydrolysate and determine changes in absorption rate due to enzymatic hydrolysis. The molecular weight distribution analysis of whey protein concentrate (WPC) and low-molecule whey protein hydrolysate (LMWPH) using the Superdex G-75 column revealed that LMWPH is composed of peptides smaller than those in WPC. Fourier-transform infrared spectroscopy indicated differences in peak positions between WPC and LMWPH, suggesting hydrolysis-mediated changes in secondary structures. Moreover, LMWPH exhibited higher thermal stability and faster intestinal permeation than WPC. Additionally, oral LMWPH administration increased serum protein content at 20 min, whereas WPC gradually increased serum protein content after 40 min. Although the total amount of WPC and LMWPH absorption was similar, LMWPH absorption rate was higher. Collectively, LMWPH, a hydrolysate of WPC, has distinct physicochemical properties and enhanced absorptive characteristics. Taken together, LMWPH is composed of low-molecular-weight peptides with low antigenicity and has improved absorption compared to WPC. Therefore, LMWPH can be used as a protein source with high bioavailability in the development of functional materials.
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Affiliation(s)
- Yeok Boo Chang
- Department of Integrated Biomedical and Life Science, Graduate School, Korea University, Seoul 02841, Republic of Korea; (Y.B.C.); (H.K.)
- Transdisciplinary Major in Learning Health Systems, Department of Healthcare Sciences, Graduate School, Korea University, Seoul 02841, Republic of Korea
| | - Hyeongyeong Kim
- Department of Integrated Biomedical and Life Science, Graduate School, Korea University, Seoul 02841, Republic of Korea; (Y.B.C.); (H.K.)
- Transdisciplinary Major in Learning Health Systems, Department of Healthcare Sciences, Graduate School, Korea University, Seoul 02841, Republic of Korea
| | - Se Kyung Lee
- Department of Integrated Biomedical and Life Science, Graduate School, Korea University, Seoul 02841, Republic of Korea; (Y.B.C.); (H.K.)
- Transdisciplinary Major in Learning Health Systems, Department of Healthcare Sciences, Graduate School, Korea University, Seoul 02841, Republic of Korea
| | - Hye-Jin Kim
- R&D Group, Maeil Health Nutrition Co., Ltd., Pyeongtaek 17714, Republic of Korea; (H.-J.K.); (A.-H.J.)
| | - A-Hyun Jeong
- R&D Group, Maeil Health Nutrition Co., Ltd., Pyeongtaek 17714, Republic of Korea; (H.-J.K.); (A.-H.J.)
| | - Hyung Joo Suh
- Department of Integrated Biomedical and Life Science, Graduate School, Korea University, Seoul 02841, Republic of Korea; (Y.B.C.); (H.K.)
- Transdisciplinary Major in Learning Health Systems, Department of Healthcare Sciences, Graduate School, Korea University, Seoul 02841, Republic of Korea
| | - Yejin Ahn
- Department of Integrated Biomedical and Life Science, Graduate School, Korea University, Seoul 02841, Republic of Korea; (Y.B.C.); (H.K.)
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