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IC50 in (μg/mL) for 4–7 compared to ascorbic and acarbose, respectively, as standard drugs against DPPH radical (blue column) and α-amylase enzyme (orange column), respectively. Data analyzed by one way ANOVA followed by LSD test and expressed as mean ± SEM from five observations; stars represent change as compared to control; ** indicates p < 0.01 and * shows p < 0.05.
