Table 3.
The antioxidant activities of extract MUSC 14 at different antioxidant assay.
| Concentration (mg/mL) | Antioxidant activities (%) | ||
|---|---|---|---|
| DPPH radical scavenging activity (%) | ABTS radical scavenging activity (%) | Metal chelating activity (%) | |
| 0.125 | 2.74 ± 1.40∗ | 5.40 ± 0.36∗ | 22.86 ± 0.60∗ |
| 0.25 | 2.38 ± 1.80∗ | 5.76 ± 0.89∗ | 20.94 ± 2.54∗ |
| 0.5 | 7.16 ± 1.58∗ | 9.23 ± 0.66∗ | 23.57 ± 1.39∗ |
| 1 | 11.88 ± 2.92∗ | 15.29 ± 1.27∗ | 30.83 ± 1.72∗ |
| 2 | 28.14 ± 2.80∗ | 28.36 ± 4.72∗ | 37.70 ± 2.03∗ |
| 4 | 24.71 ± 2.22∗ | 62.71 ± 3.30∗ | 55.82 ± 2.35∗ |
| Gallic acida | 53.99 ± 4.06∗ | — | — |
| Gallic acidb | — | 42.50 ± 0.60∗ | — |
| EDTAc | — | — | 68.49 ± 7.68∗ |
∗Statistically significant at p < 0.05. aActivity of gallic acid at 10 μg/mL. bActivity of gallic acid at 12.5 μg/mL. cActivity of EDTA at 0.125 mg/mL.