Protein hydrolysates in animal nutrition:Industrial production, bioactive peptides,and functional significance

查看全文 作　　者：Yongqing [1]Hou;Zhenlong [2]Wu;Zhaolai [2]Dai;Genhu [3]Wang;Guoyao [1,2,4]Wu

机构地区：[1]Hubei Key Laboratory of Animal Nutrition and Feed Science, Hubei Collaborative innovation Center for Animal Nutrition and Feed Safety, Wuhan Polytechnic University, Wuhan 430023, China;[2]College of Animal Science and Technology, China Agricultural University, Beijing, China;[3]Research and Development Division, Shanghai Gentech Industries Group, Shanghai, China 201015;[4]Department of Animal Science, Texas A&M University, College Station. TX. USA 77843

出　　处：《Journal of Animal Science and Biotechnology》索引2017年第8卷第3期,共13页

基　　金：supported by the National Natural Science Foundation of China(31572416,31372319,31330075 and 31110103909);Hubei Provincial Key Project for Scientific and Technical Innovation(2014ABA022);Hubei Hundred Talent program,Natural Science Foundation of Hubei Province(2013CFA097);Agriculture and Food Research Initiative Competitive Grants(2014-67015-21770 and 2015-67015-23276)from the USDA National Institute of Food and Agriculture;Texas A&M Agri Life Research(H-8200) 摘　　要：Recent years have witnessed growing interest in the role of peptides in animal nutrition. Chemical, enzymatic, or microbial hydrolysis of proteins in animal by-products or plant-source feedstuffs before feeding is an attractive means of generating high-quality small or large peptides that have both nutritional and physiological or regulatory functions in livestock, poultry and fish. These peptides may also be formed from ingested proteins in the gastrointestinal tract, but the types of resultant peptides can vary greatly with the physiological conditions of the animals and the composition of the diets. In the small intestine, large peptides are hydrolyzed to small peptides,which are absorbed into enterocytes faster than free amino acids(AAs) to provide a more balanced pattern of AAs in the blood circulation. Some peptides of plant or animal sources also have antimicrobial, antioxidant,antihypertensive, and immunomodulatory activities. Those peptides which confer biological functions beyond their nutritional value are called bioactive peptides. They are usually 2–20 AA residues in length but may consist of >20AA residues. Inclusion of some(e.g. 2–8%) animal-protein hydrolysates(e.g., porcine intestine, porcine mucosa,salmon viscera, or poultry tissue hydrolysates) or soybean protein hydrolysates in practical corn-and soybean mealbased diets can ensure desirable rates of growth performance and feed efficiency in weanling pigs, young calves,post-hatching poultry, and fish. Thus, protein hydrolysates hold promise in optimizing the nutrition of domestic and companion animals, as well as their health(particularly gut health) and well-being. 关键词：蛋白质水解物生物活性肽动物营养工业生产大豆蛋白水解物生理调节功能免疫调节活性肠道健康

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Protein hydrolysates in animal nutrition:Industrial production, bioactive peptides,and functional significance

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