Abstract
The chemical and hydroxyl radical ( OH) scavenging activity changes of ginsenoside Rb 1 (Rb 1) by heat processing were investigated in this study. Rb 1 was changed into 20( S)-Rg 3, 20( R)-Rg 3, Rk 1, and Rg 5 by heat processing through glucosyl elimination and epimerization of carbon-20 by SN1 reaction. The glucosyl moiety, separated from Rb 1, made Maillard reaction product (MRPs) with glycine. The generations of 20(S)-Rg 3 and MRPs were related to the increased OH scavenging activity of Rb 1 by heat processing.
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