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Scavenging effects (EC50 μg/mL) of OCE and OWWE on DPPH free radicals.
| OCE | OWWE | Vitamin C | |||
|---|---|---|---|---|---|
| Plain area | Mountainous area | Plain area | Mountainous area | ||
| EC50 (μg/mL) | 168.0 ± 48 | 157.7 ± 34.9 | 32.7 ± 4.5 | 12.1 ± 5.6 | 3.2 ± 0.6 |
Antiradical activity EC50 (μg/mL) was defined as the concentration of extracts necessary to decrease the initial DPPH radical concentration by 50%. Values are means standard deviation (SD) of three measurements (P < 0.05%).
