Fitoterapia. 2002 Oct; 73(6): 479-83.

Antioxidant activity of methanolic extract of Hypericum triquetrifolium Turra aerial part.

Conforti F, Statti GA, Tundis R, Menichini F, Houghton P.

Dipartimento di Scienze Farmaceutiche, UniversitÃ degli Studi della Calabria, 87036 Rende (CS), Italy. filomena.conforti@unical.itq

The antioxidant activity of the methanol extract of Hypericum triquetrifolium Turra (Hypericaceae) aerial part and of flavonoids isolated therein, I3,II8-biapigenin, quercetin-3-O-galactoside, kaempferol-3-O-glycoside, (-)-epicatechin and hypericin, was evaluated. The IC(50) resulted between 0.062 and 1 mg/ml.Copyright 2002 Elsevier Science B.V.