Table 2 In vitro antioxidant properties of L-ascorbic acid (a positive control), aqueous and ethanolic extracts of S. exigua roots
Samples | IC50 (μg/ml) for radical scavenging | ||
|---|---|---|---|
DPPH radical | Superoxide radical | Hydroxyl radical | |
Ethanolic extract | 24.63 ± 1.78 | 129.78 ± 0.65 | 30.58 ± 1.19 |
Aqueous extract | 116.32 ± 4.14 | 184.62 ± 3.13 | 44.04 ± 1.37 |
L-ascorbic acid | 3.99 ± 0.26 | 11.77 ± 0.16 | 4.06 ± 0.95 |