Table 2
ABTS+ radical scavenging activity of the methanolic extract of C. setidens and its n-hexane-, EtOAc -, n-BuOH -, and H2O -solubleportions
| Conc.(μg/mL) | Inhibition (%) |
| 200 | 100 | 50 | 25 | 12.5 | 6.25 | IC50 (μg/mL) |
| MeOHext. | 98.7±2.71) | 98.2±2.5 | 66.4±2.0 | 37.5±1.6 | 19.4±0.8 | 9.7±0.7 | 31.1±2.1 |
| n-Hexanelayer | 41.2±1.3 | 36.8±1.2 | 22.2±1.3 | 10.4±1.4 | 4.5±1.3 | 3.1±0.5 | >200 |
| EtOAclayer | 93.5±2.5 | 81.6±2.4 | 81.2±1.7 | 47.5±1.9 | 27.3±1.2 | 12.7±0.8 | 69.5±2.6 |
| n-BuOHlayer | 98.2±2.8 | 93.6±2.3 | 66.4±2.0 | 37.5±1.6 | 19.4±0.8 | 9.7±0.7 | 25.0±3.3 |
| H2Olayer | 99.5±2.4 | 97.5±2.3 | 78.1±1.6 | 46.7±1.3 | 21.0±0.8 | 8.4±0.6 | 241.6±4.6 |
| (+)-Catechin2) | 99.9±2.7 | 99.8±2.3 | 94.3±2.4 | 70.3±1.8 | 68.1±1.5 | 36.5±0.8 | 13.8±1.8 |
Inhibitory effects are expressed as the mean±SD of triplicate experiments.
(+)-Catechin was used as a positive control.