Table 3.
In vitro DPPH scavenging activities of methanolic extracts of C. volkensii, V. lasiopus, and A. hockii.
| DPPH scavenging activity (% inhibition) | ||||
|---|---|---|---|---|
| Concentration in mg/ml | Treatments | |||
| L-ascorbic acid | C. volkensii | V. lasiopus | A. hockii | |
| 0.0625 | 46.81 ± 0.46eA | 33.16 ± 0.60eD | 36.44 ± 0.75eC | 39.38 ± 0.30cB |
| 0.125 | 62.18 ± 0.18dA | 36.10 ± 0.75dD | 44.73 ± 1.73dC | 53.37 ± 1.30bcB |
| 0.25 | 73.06 ± 1.03cA | 51.64 ± 0.46cC | 50.60 ± 0.17cD | 66.67 ± 1.05abB |
| 0.5 | 81.35 ± 0.30bA | 61.31 ± 0.75bC | 70.47 ± 1.79bB | 70.47 ± 1.79bB |
| 1 | 87.22 ± 0.75aA | 67.36 ± 0.30aD | 76.86 ± 0.96aC | 82.73 ± 0.62aB |
|
| ||||
| IC 50 | 0.06 | 0.25 | 0.24 | 0.12 |
The values are expressed as mean ± SEM. Values with the same uppercase superscript letter within the same row and those with the same lowercase subscript letter within the same column are not significantly different (P > 0.05, one-way ANOVA followed by Tukey's test).