Isolation and Identification of Novel Taste-Modulating -Guanosine 5'-Monophosphate Derivatives Generated by Maillard-Type Reactions

Overview

Journal J Agric Food Chem

Specialties Chemistry
Nutritional Sciences

Date 2024 Jun 13

PMID 38869215

Authors

Daniela M Hartl

Oliver Frank

Victoria S Hanel

Vinzenz Heigl

Corinna Dawid

Thomas F Hofmann

Affiliations

Soon will be listed here.

Abstract

Several compounds with taste-modulating properties have been investigated, improving the taste impression without having a pronounced intrinsic taste. The best-known representatives of umami taste-modulating compounds are ribonucleotides and their derivatives. Especially the thio derivatives showed high taste-modulating potential in structure-activity relationship investigations. Therefore, this study focuses on the formation of guanosine 5'-monophosphate derivatives consisting of Maillard-type generated compounds like the aroma-active thiols (2-methyl-3-furanthiol, 3-mercapto-2-pentanone, 2-furfurylthiol) and formaldehyde to gain insights into the potential of combinations of taste and aroma-active compounds. One literature-known (-(furfurylthiomethyl)-guanosine 5'-monophosphate) and three new derivatives (-(2-methyl-1-furylthiomethyl)-guanosine 5'-monophosphate, -((5-hydroxymethyl)-2-methyl-1-furylthiomethyl)-guanosine 5'-monophosphate, -((2-pentanon-1-yl)thiomethyl)-guanosine 5'-monophosphate) were successfully produced using green natural deep eutectic solvents and isolated, and their structures were completely elucidated. Besides the intrinsic taste properties, the kokumi and umami taste-modulating effects of the four derivatives were evaluated via psychophysical investigations, ranging from 19 to 22 μmol/L.

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