Antioxidant activity and phenolic content in methanol crude extracts from three Lamiaceae grown in southwesternAlgeria

Nacéra Belmek

Abstract

The present study estimated in vitro antioxidant activities of methanolic extracts of some Algerianmedicinal plants (Saccocalyx satureioïdes, Teucrium polium and Salvia verbenaca) (Lamiaceae) using Folin–Ciocalteu, ferric-reducing/antioxidant power (FRAP) and 2,2- diphenyl-1-picrylhydrazyl (DPPH) radical-scavenging assays. The results showed that methanolic extract of Teucrium polium with a total content of polyphenols (3.81 GAE/g) and an IC50of 5.70μg/mLwas more antioxidant. In power reduction, the antioxidant activity of T.poliumand S.satureioïdes extract’s, at all the concentrations were average compared to controls used (BHA, BHT).