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Insight into the enhancement and mechanism of saltiness perception by salty peptides from bovine bone

文献类型： 外文期刊

作者： Wang, Haiyan 1 ; Lu, Wenjing 1 ; Chen, Di 1 ; Dang, Yali 3 ; Chen, Xuan 1 ; Gou, Zhongjun 5 ; Wang, Yongjun 6 ; Zhang, Cen 1 ; Xiao, Chaogeng 1 ;

作者机构： 1.Zhejiang Acad Agr Sci, Food Sci Inst, State Key Lab Managing Biot & Chem Threats Qual &, Hangzhou 310021, Peoples R China

2.Zhejiang Agr & Forestry Univ, Coll Food & Hlth, Hangzhou 311300, Peoples R China

3.Ningbo Univ, Coll Food & Pharmaceut Sci, State Key Lab Managing Biot & Chem Threats Qual &, Ningbo 315211, Peoples R China

4.Zhejiang Dingwei Food Co Ltd, Wenzhou 325207, Peoples R China

5.Juhui Food Technol Co Ltd, Chongqing 400713, Peoples R China

6.Zhejiang Yanzhoufu Food Co Ltd, Hangzhou 311600, Peoples R China

关键词： Salty peptides; TMC4; Sodium reduction; Stevens' law; Molecular dynamics simulation

期刊名称：FOOD CHEMISTRY （ 影响因子：9.8； 五年影响因子：9.7 ）

ISSN： 0308-8146

年卷期： 2025 年 463 卷

页码：

收录情况： SCI

摘要： Food-derived salty peptides have been considered promising substitutes for sodium salt. In this work, three novel salty dipeptides Asp-Pro (DP), Asp-Arg (DR), and Arg-Glu (RE) were identified from bovine bone hydrolysates. The salt reduction rates were 76.85 %, 77.28 %, and 73.72 % by the three peptides (2 mg/mL) in a NaCl concentration of 0.203 g/100 mL, respectively. According to Stevens' law, a non-linear relationship between saltiness intensity and concentration was quantified, showing a slower increase in the sensory intensity perception compared with the changes in physical concentration (beta < 1). In molecular detail, electrostatic energy and van der Waals energy were the main energetic contributions to forming stable complexes. The binding of salty peptides to TMC4 was driven by hydrogen bonding and salt bridge, and the main binding sites were Glu319, Ala579, and Thr581. These results could provide new insight into the salt-enhancing property and interaction mechanism of salty peptides as novel sodium substitutes.

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