[Objective]As a kind of functional protein with high proportion in animal body,collagen has a huge market demand that has increased by 10％year-on-year,so that expansion of collagen preparation processes and functional applications has been a hot spot of research at home and abroad. The application and promotion of livestock-derived collagen and its functional peptides are of great significance in solving the problems of massive waste of slaughter by-products and environmental pollution in Xinjiang .[Methods]In this article,the preparation process of livestock-derived collagen and its peptides as well as its application status,was reviewed,the progress of activity mining of hydrolyzed peptides was summarized.[Results]In view of the serious waste and pollution of slaughter by-products of livestock origin,the prospect of promoting the application of collagen or functional peptides as well as the feasibility by industrialization path to solve the problem was analyzed.[Conclusion]It was hoped that the study could show the way for the high-value utilization of slaughter by-products in Xinjiang which were mostly discarded,provide reference for the industrial scale upgrading of collagen,and provide feasible solutions for the production and application of functional hydrolyzed peptides and the extension of the collagen industry chain.
slaughter by-producthigh-value utilizationcollagencollagen active polypeptideextraction and separation
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