Table 1.
Total phenol (TPC) and flavonoid (TFC) contents, antioxidant capacity (IC50 of DPPH scavenging activity), and hydrogen peroxide production activity for T. indica fractions
| Fractions | Extraction yield (g DW) | TPC (mg GAE. gDW−1) | TFC (mg RE. gDW−1) | F/P | IC50 (mg.gDW−1) | μmol H2O2 (g DW−1) |
|---|---|---|---|---|---|---|
| Dichloromethane | 5.0 | 49 ± 1.6 | 31 ± 4.0 | 0.64 | 165 ± 11 | 8.7± 0.27 |
| Ethyl acetate | 9.84 | 122 ± 1.6 | 23 ± 2.0 | 0.19 | 45 ± 3.0 | 29.2 ± 2.9 |
| n-butanol | 30.9 | 378 ± 11.7 | 83 ± 6.0 | 0.22 | 2.1 ± 0.08 | 77.5 ± 4.6 |
TPC (total phenolic content) was expressed as milligram of gallic acid equivalent per gram of extract dry weight (mg GAE. gDW−1)
TFC (total flavonoid content) was expressed as milligram of rutin equivalent per gram of extract dry weight (mg RE. gDW−1)
F/P flavonoid/phenol ratio
The values represent the mean ± SD of three independent experiments
*Highly significant value p< 0.001