A screening strategy for identifying umami peptides with multiple bioactivities from Stropharia rugosoannulata using in silico approaches and SPR sensing
文献类型： 外文期刊
作者： Li, Jialin 1 ; Liu, Xiaofeng 2 ; Li, Wen 1 ; Wu, Di 1 ; Zhang, Zhong 1 ; Chen, Wanchao 1 ; Yang, Yan 1 ;
作者机构： 1.Shanghai Acad Agr Sci, Natl Engn Res Ctr Edible Fungi, Key Lab Edible Fungi Resources & Utilizat South, Inst Edible Fungi,Minist Agr, Shanghai 201403, Peoples R China
2.Lanzhou Univ Technol, Sch Life Sci & Engn, Lanzhou 730050, Gansu, Peoples R China
3.Shanghai Baixin Biotechnol Co Ltd, Shanghai 201403, Peoples R China
关键词： Umami peptide; Stropharia rugosoannulata; ACE; DPP-IV; Molecular docking; SPR
期刊名称：FOOD CHEMISTRY （ 影响因子：8.8； 五年影响因子：8.6 ）
ISSN： 0308-8146
年卷期： 2024 年 431 卷
页码：
收录情况： SCI
摘要： Umami peptides from natural resources have garnered considerable attention for their potential bioactivities and flavor-enhancing characteristics. In this study, we constructed a database comprising 123 peptides from Stropharia rugosoannulata and screened for umami peptides with both angiotensin I-converting enzyme (ACE) and dipeptidyl peptidase-4 (DPP-IV) inhibitory activities using online prediction tools and molecular docking, and further confirmed by SPR sensing, intelligent sensory and activities test. Five peptides with varying chain lengths were synthesized and by evaluations analyses they exhibited strong umami, with thresholds ranging from 0.105 mmol/L to 0.547 mmol/L. According to the targeted SPR molecular interaction analysis, umami peptides and hT1R3 receptor exhibited a "fast-on/fast-off" binding mode with stronger intensity and persistence than MSG. Furthermore, in vitro experiments revealed that five peptides showed potent ACE and DPP-IV inhibitory activities. Notably, the EAF inhibitory activity was the most significant among the peptides. This comprehensive screening strategy provides a rapid approach for identifying high-sensitivity umami peptides with bioactivities.
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