Fig. 4.

Anti-oxidative activity and total flavonoid content in the extracts from the petals of Rosa gallica. The anti-oxidative activity of the extracts was verified by DPPH radical scavenging assay (NC, negative control) (A). Vitamin C was used as the positive control. Total flavonoid content in the extracts was measured as described in “Materials and methods” (B). Data are representative of three independent experiments. (**) denote statistical significance (p < 0.001) as compared with controls