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Antioxidant activity of Urtica urens extracts (ABTS•+, DPPH•).
| Sample | DPPH• scavenging (IC50, μg/mL) | ABTS•+ scavenging (IC50, μg/mL) | DPPH• scavenging (mg TE/g extract) | ABTS•+ scavenging (mg TE/g extract) |
|---|---|---|---|---|
| Ethanol | 245.65 ± 10.2 | 30.88 ± 3.03 | 65.33 ± 10.72 | 560.33 ± 29.45 |
| Aqueous | 142.94 ± 10.54*** | 14.65 ± 1.09*** | 45.67 ± 10.21*** | 350.33 ± 18.73*** |
Values are expressed as mean ± SEM of three independent determinations. ***p < 0.001.
TE: Trolox equivalents; IC: Inhibition Concentration.
