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Chemical studies of the antioxidant mechanism of stilbene glucose from polygonum multiflorum thunb:radical reaction products of stilbene glucosides with DPPH

LV Li-shuang

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Abstract

Stilbene glycoside (SG) was isolated from Polygonum multiflorum Thunb, and then its antioxidant mechanism was studied. Products of reaction of SG with DPPH were isolated and detected by LC-MS and NMR in order to have a better understand antioxidation mechanisms. The dimer of SG was the major product. It was indicated that C4′-OH of phenyl is more active than H-abstraction.

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What this paper is about

Stilbene glycoside (SG) was isolated from Polygonum multiflorum Thunb, and then its antioxidant mechanism was studied. Products of reaction of SG with DPPH were isolated and detected by LC-MS and NMR in order to have a better understand antioxidation mechanisms. The dimer of SG was the major product. It was indicated that C4′-OH of phenyl is more active than H-abstraction.

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Available abstract

Stilbene glycoside (SG) was isolated from Polygonum multiflorum Thunb, and then its antioxidant mechanism was studied. Products of reaction of SG with DPPH were isolated and detected by LC-MS and NMR in order to have a better understand antioxidation mechanisms. The dimer of SG was the major product. It was indicated that C4′-OH of phenyl is more active than H-abstraction.

Key concepts: Polygonum, Chemistry, DPPH, Antioxidant, Dimer, Organic chemistry, Glycoside, Traditional medicine

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Chemical studies of the antioxidant mechanism of stilbene glucose from polygonum multiflorum thunb:radical reaction products of stilbene glucosides with DPPH — Research Paper | ScholarLens