Quantitative determination of kokumi compounds, γ-glutamyl peptides, in Korean traditional fermented foods, and by LC-MS/MS.

Food Sci Biotechnol

Department of Bio and Fermentation Convergence Technology, Kookmin University, Seoul, 02707 Republic of Korea.

Published: October 2021

Unlabelled: Recent studies have shown that γ-glutamyl peptides (GGPs) are recognized by the calcium-sensing receptor and induce kokumi taste. The contents of GGP have been reported in some fermented foods such as cheese and Japanese soy sauce but not in and which are representative Korean fermented-soybean products. In this study, the qualitative and quantitative analyses of GGPs in several and were carried out by LC-MS/MS using 11 synthetic GGPs as reference compounds. The total GGP contents ranged from 92 to 620 μg/mL for and from 203 to 387 μg/g for , respectively. Interestingly, the levels of GGPs were not related to manufacturing types of traditional and industrial products. These data provide a basis for the taste of and which was expressed abstractly as mouthful and long-lasting taste.

Supplementary Information: The online version contains supplementary material available at 10.1007/s10068-021-00993-x.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8581093PMC
http://dx.doi.org/10.1007/s10068-021-00993-xDOI Listing

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