Table 2.
ABTS+ radical scavenging activity of the methanolic extract of A. asphodeloides and its n-hexane, EtOAc-, n-BuOH-, and H2O-soluble portions
Conc. (mg/mL) | Scavenging activity (%)1) | IC50 (mg/ml) |
1000 | 500 | 250 | 125 | 62.5 | 31.3 |
70% MeOH ext. | 82.2 | 77.3 | 68.7 | 48.6 | 31.1 | 19.9 | 137.3±9.5 |
n-Hexane layer | 55.8 | 44.8 | 33.3 | 26.1 | 14.3 | 9.6 | 704.5±40.1 |
EtOAc layer | 100 | 99.2 | 94.8 | 86.1 | 74.4 | 55.0 | 20.5±1.7 |
n-BuOH layer | 99.3 | 98.9 | 90.4 | 76.9 | 57.7 | 35.6 | 50.7±0.7 |
H2O layer | 55.2 | 40.4 | 26.7 | 15.7 | 8.1 | 4.3 | 800.4±11.2 |
(+)-Catechin2) | 100 | 99.9 | 99.9 | 99.8 | 99.6 | 99.7 | 2.3±0.2 |
Data represent the mean±SD three replications.
positive control.