Flavonoid characterization and in vitro antioxidant activity of Aconitum anthora L. (Ranunculaceae).

In this paper, we report studies on morphological, phytochemical, and biological aspects of a population belonging to Aconitum anthora L. Two compounds, quercetin 3-O-((β-d-glucopyranosyl-(1→3)-(4-O-(E-p-coumaroyl))-α-l -rhamnopyranosyl-(1→6)-β-d-galactopyranoside))-7-O-α-l-r hamnopyranoside (1) and kaempferol 3-O-((β-d-glucopyranosyl-(1→3)-(4-O-(E-p-coumaroyl))-α-l -rhamnopyranosyl-(1→6)-β-d-galactopyranoside))-7-O-α-l-r hamnopyranoside (2), together with two known flavonol glycosides (3-4) were isolated and identified from A. anthora. The antioxidant activity of the four identified flavonoids was screened by three in vitro tests.