Fig. 3

In vitro antioxidant activity of S. surattense ethanol-extract (SSEE). a DPPH radical scavenging activity of different concentrations (31.25–500 μg/mL) of total ethanol extract of S. surattense and standard antioxidant (Ascorbic acid). b β-carotene linoleic acid method showing β-carotene bleaching rate in presence of SSEE (500 μg/mL), gallic acid, blank control (left panel) and %inhibition of lipid peroxidation by different concentrations of SSEE (31.25–500 μg/mL) and gallic acid (right panel)