Extract and Reference Compound 10 µgml-1 100 µgml-1 1000 µgml-1 IC50 µgml-1
C. columellaris 23 ± 0.00 45 ± 0.002 68 ± 0.001 70
Ascorbic acid 58 ± 0.00 85 ± 0.001 96 ± 0.00 10
Data are presented as triplicate of the mean ± S.E.M
Table 2: Percentage Inhibitions and IC50 of the DPPH Free Radical Scavenging of the Recovered Leaf Secondary Oil Extract of C. columellaris.