Table 3: Total antioxidant, peroxide scavenging, and superoxide scavenging activities of various Conyza extracts.

TreatmentAntioxidant activity a,bPeroxide scavenging activity (%)aSuperoxide scavenging activity (%)a

I 91.3 ± 1.4 67.3 ± 3.165.0 ± 3.5
II132.7 ± 2.2 49.7 ± 2.096.7 ± 4.7
III 4.7 ± 0.9 42.0 ± 1.884.0 ± 4.6
IV 67.7 ± 2.1 45.7 ± 4.081.0 ± 5.2
V 1.3 ± 0.1 28.7 ± 2.262.0 ± 5.5
Trolox192.3 ± 3.5 32.3 ± 2.961.7 ± 3.7

The data are expressed as means ± SEM; n = 3.
bThe activity is expressed as equivalent of trolox (μg trolox/g extract).