Table 1.
Concentration (mg/mL) | Antioxidant Activities (%) | ||
---|---|---|---|
ABTS Radical Scavenging Activity | DPPH Radical Scavenging Activity | Metal Chelating Activity | |
0.125 | 10.44 ± 2.68 * | 3.47 ± 2.49 | 26.00 ± 3.29 * |
0.25 | 13.32 ± 1.25 * | 4.23 ± 1.37 * | 28.56 ± 2.62 * |
0.5 | 18.71 ± 1.47 * | 9.55 ± 1.01 * | 32.49 ± 0.63 * |
1 | 27.27 ± 1.17 * | 16.23 ± 3.60 * | 39.07 ± 2.61 * |
2 | 41.50 ± 1.06 * | 55.00 ± 3.10 * | 52.75 ± 1.76 * |
4 | 67.85 ± 2.16 * | 64.77 ± 1.31 * | 61.10 ± 0.64 * |
Gallic Acid a | 42.50 ± 0.60 * | - | - |
Gallic Acid b | - | 53.99 ± 4.06 * | - |
EDTA c | - | - | 68.49 ± 7.68 * |
* Statistically significant at p < 0.05. a Activity of gallic acid at 12.5 μg/mL. b Activity of gallic acid at 10 μg/mL. c Activity of Ethylenediaminetetraacetic acid (EDTA) at 0.125 mg/mL.