Table 2. RSA in the DPPH assay in RC and vitamin C in various doses.

	% Inhibition DPPH
Concentration a	RC	Vitamin C
1.0	26.82	31.86
2.5	39.43	42.01
5.0	59.71	50.69
10.0	96.54	83.37
20.0	100.00	85.11

^a Unit of used extract and vitamin C were (mg/ml) and (µg/ml) respectively.