In vitro antioxidant activity of Coleus barbatus (Andr.) Benth (False Boldo) and Peumus boldus (Molina) (Boldo of Chile): a comparative study
Rev. farm. bioquim. Univ. Säo Paulo; 34 (1), 1998
A comparative assay was made between crude ethanolic extracts of Peumus boldus and Coleus barbatus in order to evaluate their relative in vitro antioxidant capacities. The antioxidant activity of boldine was employed as standard. The Q½ (concentration necessary to decrease 50 percent of the spontaneous ...