Table 3.
Antioxidant activity of methanol extract and essential oil of Clausena excavata, Clausena harmandiana and Murraya koenigii.
| Plant Extracts | Antioxidant Activity | ||
|---|---|---|---|
| DPPH Free Radical Scavenging (IC50, ug/mL) | ABTS Cation Free Radical Scavenging (mg GAE/g extract) | Ferric Reducing Antioxidant Power (mg GAE/g extract) | |
| C. excavata methanol extract | 904.53 ± 3.23c | 88.65 ± 0.71b | 16.48 ± 0.72d |
| C. excavata essential oil | 2059.29 ± 83.13d | 12.27 ± 0.1.75d | 5.07 ± 0.17e |
| C. harmandiana methanol extract | 2037.66 ± 39.23d | 80.11 ± 1.01c | 19.07 ± 0.55c |
| C. harmandiana essential oil | 2865.26 ± 8.22e | 12.83 ± 1.04d | 5.37 ± 0.32e |
| M. koenigii methanol extract | 95.54 ± 3.46a | 118.12 ± 1.01a | 48.15 ± 1.21a |
| M. koenigii essential oil | 167.74 ± 6.97b | 79.52 ± 1.01c | 28.22 ± 0.94b |
Average ± standard deviations from three replicates. Different letters in the same column are considered significantly different according to Duncan’s multiple comparison test (p < 0.05).