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  • Title: Polyphenolic compounds from Geranium pratense and their free radical scavenging activities.
    Author: Akdemir ZS, Tatli II, Saracoğlu I, Ismailoğlu UB, Sahin-Erdemli I, Caliş I.
    Journal: Phytochemistry; 2001 Jan; 56(2):189-93. PubMed ID: 11219813.
    Abstract:
    Two new polyphenolic compounds, myricetin 3-O-(2"-O-galloyl)-beta-D-glucopyranoside and (-)-6-chloroepicatechin, were isolated from the aerial parts of Geranium pratense subsp. finitimum (Woronow) Knuth, along with three known polyphenolic compounds [quercetin 3-O-(2"-O-galloyl)-beta-D-glucopyranoside, quercetin 3-O-(2"-O-galloyl)-beta-D-galactopyranoside, methyl gallate] and tryptophan. Quercetin 3-O-beta-D-glucopyranoside, quercetin 3-O-beta-D-galactopyranoside, quercetin 3-O-(2"-O-galloyl)-beta-D-glucopyranoside and quercetin 3-O-(2"-O-galloyl)-beta-D-galactopyranoside were found to be effective against free radical induced impairment of endothelium-dependent relaxation in isolated rat aorta.
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