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Antioxidant activities of the aerial parts and root extracts of Z. spinosa in comparison to the standard, i.e., ascorbic acid: (a) IC50 (μg/mL) values of the 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay; (b) IC50 (μg/mL) values of the hydrogen peroxide (H2O2) scavenging assay. AEE, aqueous ethanol extract; AME, aqueous methanol extract.
