% Relative scavenging activity (RSA) | |||
---|---|---|---|
Concentration (μg/ml) | L-Ascorbic acid | T. catappa L. methanol | T. catappa aqueous extract |
Mean ± SD | Mean ± SD | Mean ± SD | |
 1000 | 91.97 ± 0.11Aa | 82.58 ± 0.17Ab | 81.70 ± 0.39Ac |
 200 | 91.35 ± 0.39Aa | 81.85 ± 0.68Ab | 80.41 ± 0.75Ab |
 40 | 90.01 ± 0.34Ba | 80.96 ± 0.39Bb | 75.17 ± 0.37Bc |
 8 | 44.33 ± 0.12Ca | 38.84 ± 0.70Cb | 39.43 ± 0.60Cb |
 1.6 | 13.24 ± 0.31Da | 7.36 ± 0.24Db | 14.28 ± 0.28Dc |
 0.32 | 10.81 ± 0.32E | 3.42 ± 0.34E | 7.42 ± 0.39E |
 0.0 | 0.00 ± 0 | 0.00 ± 0 | 0.00 ± 0 |
 IC50 | 8.723 | 13.04 | 13.42 |