Flavan-3-ols and flavonoids from Potentilla anserina
1995
Kombal, R. | Glasl, H. (Muenster Univ. (Germany). Inst. fuer Pharmazeutische Biologie und Phytochemie)
Roots/rhizomes and aerial parts of Potentilla anserina L. (Rosaceae) contain two flavan-3-ols: (+)-catechin and (+)-gallocatechin. The flavonol glycosides and glucuronides isolated from the herb were kaempferol 3-O-beta-D-glucoside, kaempferol 3-O-beta-D-(6"-O-(E)-p-coumaroyl)glucopyranoside, quercetin 3-O-beta-D-glucoside, quercetin 3-O-beta-D-xyloside, quercetin 3-O-alpha-L-rhamnoside, quercetin sambubioside, quercetin 3-O-beta-D-glucuronide, isorhamnetin 3-O-beta-D-glucuronide, myricetin 3-O-alpha-L-rhamnoside, and myricetin 3-O-beta-D-glucuronide. Herbacetin 8-methyl ether-3-O-beta-D-sophoroside (8-methoxykaempferol 3-sophoroside) was identified in the flowers. The 6"-methyl ester of quercetin 3-O-beta-D-galacturonide, which may be an artifact, was isolated from the herb. The total flavonoid content calculated as quercetin-3-O-beta-D-glucuronide was 1% in the lyophilized herb used in this study and 0.5% in a commercial drug, meeting DAC standards.
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