Table 5. Superoxide anion scavenging activity of plant extracts.

Plant extract	% Superoxide anion scavenging activity
AA = 55.07±1.83	Petroleum ether	Ethyl acetate	Methanol	Ethanol (70% v/v)
G.glauca
Flower	14.06±1.44	61.67±1.71	67.51±0.23*	59.75±0.62
Leaf	22.96±2.07	64.52±0.70	72.12±0.53*	63.06±1.42
Stem	22.43±1.50	50.38±1.00	60.45±0.43*	58.37±1.00
D.bulbifera
Bulb	26.88±1.28	57.60±0.81	59.75±0.98*	54.76±1.20

AA = Ascorbic acid; the data is indicated as the mean ± SEM; [n = 3]. Data with asterisk (*) shows significant difference (P<0.05), two-tailed student t-test.