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Antioxidant activities of AMPS in vitro. (A) Reducing power, (B) scavenging ability on 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals, (C) scavenging ability on hydroxyl radicals, and (D) scavenging ability on superoxide anion radicals. The values were reported as means ± SD (n = 10 for each group). Means with the same letter had no significant difference (p < 0.05).
