Figure 1.

Antioxidant activities of AE (aqueous extract), AE-D (aqueous extract from decoction) and ME (methanol extract): (A) total antioxidant capacity; (B) reducing power; (C) ferrous chelating; (D) copper chelating; (E) hydroxyl radical scavenging; and (F) superoxide radical scavenging. Letters a,b,c,d represent the presence of significant difference between different concentration of the same extract as determined using one-way analyses of variance (ANOVA) followed by the Student’s t-test (p < 0.05).