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MPE and MSE possess radical scavenging activity. The antioxidant activity of MPE and MSE was evaluated by DPPH (1,1-diphenyl-2-picrylhydrazyl) radical scavenging assay. Different concentrations of MPE and MSE (25–200 µg/mL) were added on ethanol DPPH• solution and absorbance of each concentration was measured at 517 nm by spectrophotometer. The bar graphs represent the mean of three independent experiments ± SD. ** p < 0.01 and *** p < 0.001 with respect to the only vehicle control.
