Table 4.
Median effective concentration of antiradical activity in methanolic plant extracts expressed in μM QE/g FW for DPPH and in μM TE/g FW.
| DPPH Reduction Method | ABTS Reduction Method | |||
|---|---|---|---|---|
| Test Sample | EC50 (μM QE/g FW) | SD (μM QE/g FW) | EC50 (μM TE/g FW) | SD (μM TE/g FW) |
| Quercus canbyira | 659.75 | 14.54 | 1350.63 | 36.79 |
| Turnera diffusa | 598.17 | 17.17 | 719.78 | 21.85 |
| Leucophyllum frutescens | 280.43 | 4.97 | 266.20 | 5.63 |
| Teucrium bicolor | 267.96 | 10.56 | 426.02 | 11.74 |
| Salvia texana | 251.84 | 8.35 | 253.15 | 8.62 |
| Salvia beateflora | 155.70 | 3.22 | 283.25 | 4.35 |
| Vitis vinifera | 97.24 | 1.18 | 337.92 | 6.11 |
| Jatropha dioica | < 57.36 | < 28.80 | ||