Fig. 3.
ABTS.+ scavenging activity of A. wardii n-BuOH and EtOAc partition (a) and of A. wardii fractions 1–8. Quercetin was used as positive control. Values are expressed as means ± 95% confidence intervals (n=8) of Trolox equivalent antioxidant capacity (TEAC) (concentration of Trolox in mmol/l having the ABTS.+ scavenging activity equal to a 1.0 mg/ml sample solution).