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.