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In vitro ability of HEAS (1–1000 μg/mL) to scavenge the free radical DPPH. The results are expressed as mean ± SEM of triplicated experiments. Statistical comparison was performed using one-way ANOVA followed by Dunnett's test. ∗∗∗ P < 0.001 versus vehicle group (Veh). AA: ascorbic acid (50 μg/mL).
