The Bioaccessibility of Yak Bone Collagen Hydrolysates: Focus on Analyzing the Variation Regular of Peptides and Free Amino Acids
文献类型: 外文期刊
作者: Guo, Zitao 1 ; Yang, Yuliang 1 ; Hu, Bo 3 ; Zhu, Lingyu 1 ; Liu, Chunyu 1 ; Li, Moying 1 ; Gu, Zhenghua 1 ; Xin, Yu 1 ; Guo, Zhongpeng 1 ; Sun, Haiyan 4 ; Guan, Yanming 5 ; Zhang, Liang 1 ;
作者机构: 1.Jiangnan Univ, Natl Engn Res Ctr Cereal Fermentat & Food Biomfg, Wuxi 214122, Peoples R China
2.Jiangnan Univ, Jiangsu Prov Res Ctr Bioact Prod Proc Technol, Wuxi 214122, Peoples R China
3.Jiangnan Univ, Natl Engn Res Ctr Funct Food, Wuxi 214122, Peoples R China
4.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Hainan Key Lab Trop Microbe Resources, Haikou 571101, Peoples R China
5.Food & Fermentat Ind Co Ltd, China Natl Res Inst, Beijing 100015, Peoples R China
关键词: yak bone collagen hydrolysates; bioaccessibility; simulated gastrointestinal digestion and absorption; bioactive peptide; free amino acids
期刊名称:FOODS ( 影响因子:5.2; 五年影响因子:5.5 )
ISSN:
年卷期: 2023 年 12 卷 5 期
页码:
收录情况: SCI
摘要: The lack of a bioaccessibility test for yak bone collagen hydrolysates (YBCH) limits their development as functional foods. In this study, simulated gastrointestinal digestion (SD) and absorption (SA) models were utilized to evaluate the bioaccessibility of YBCH for the first time. The variation in peptides and free amino acids was primarily characterized. There was no significant alteration in the concentration of peptides during the SD. The transport rate of peptides through the Caco-2 cell monolayers was 22.14 +/- 1.58%. Finally, a total of 440 peptides were identified, more than 75% of them with lengths ranging from 7 to 15. The peptide identification indicated that about 77% of the peptides in the beginning sample still existed after the SD, and about 76% of the peptides in the digested YBCH could be observed after the SA. These results suggested that most peptides in the YBCH resist gastrointestinal digestion and absorption. After the in silico prediction, seven typical bioavailable bioactive peptides were screened out and they exhibited multi-type bioactivities in vitro. This is the first study to characterize the changes in peptides and amino acids in the YBCH during gastrointestinal digestion and absorption, and provides a foundation for analyzing the mechanism of YBCH's bioactivities.
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