Table 1.
Antioxidant activities of polyphenols-rich extracts from A. borbonica were measured by DPPH assay. Ascorbic acid was used as a positive control. The IC50 values were obtained by plotting the percentage of free radical-quenching activity against the logarithm of the different concentrations, ranging from 40 to 2.3 g/L (plant dried powder) for aqueous and acetonic extracts. The results were expressed in g/L. Data are the mean ± SD of three independent experiments.
| IC50 (g/L) | ||
|---|---|---|
| Ascorbic Acid | Acetonic Extract | Aqueous Extract |
| 2.8 ± 0.1 | 3.1 ± 0.3 | 3.3 ± 0.3 |