Table 2.
Results of DPPH scavenging activity, Ferric Reducing Antioxidant Power (FRAP), and β-Carotene Bleaching assay (BCB) of A. glabra samples.
| Samples | DPPH (mgTE/g) | FRAP (mgTE/g) | BCB %AA |
|---|---|---|---|
| Ag EtOH | 28.17 ± 2.32 a | 73.58 ± 0.71 a | 26.70 ± 0.61 a |
| AgH | nc | 18.79 ± 0.66 b | 22.50 ± 0.65 b |
| AgC | 5.94 ± 0.27 b | 15.45 ± 0.44 b | 22.18 ± 1.54 b |
| AgEA | 240.33 ± 10.73 c | 410.29 ± 5.69 c | 34.93 ± 1.37 c |
| AgB | 224.91 ± 4.84 d | 318.57 ± 2.77 d | 21.68 ± 0.57 b |
| AgW | 43.12 ± 1.23 e | 95.33 ± 3.86 e | nc |
Samples are crude ethanol extract (Ag EtOH), n-hexane fraction (AgH), chloroform fraction (AgC), ethyl acetate fraction (AgEA), n-butanol fraction (AgB), and water fraction (AgW). Data are expressed as means ± standard deviation from three experiments; mg TE/g = mg of Trolox Equivalents per gram of dried sample; % AA = percentage of Antioxidant Activity at initial sample concentration of 1 mg/mL; different superscripts in the same row indicate significant difference (p < 0.05); nc = not calculable.