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.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Chemistry, Pharmaceutical / methods
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Chromatography, High Pressure Liquid
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Electron Spin Resonance Spectroscopy
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Free Radical Scavengers / pharmacology
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Ginsenosides / chemistry*
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Glucose / chemistry
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Glycine / chemistry
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Hot Temperature
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Hydroxyl Radical*
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Light
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Maillard Reaction
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Models, Chemical
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Panax / chemistry
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Plant Extracts / chemistry*
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Superoxides
Substances
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Free Radical Scavengers
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Ginsenosides
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Plant Extracts
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Superoxides
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Hydroxyl Radical
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ginsenoside Rb1
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Glucose
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Glycine