Concentrations (µg mL−1) | DPPH scavenging activity (% ± SD) | Total antioxidant capacity (% ± SD) | Metal chelating activity (% ± SD) | |
---|---|---|---|---|
Ascorbic acid | 25 | 77.36 ± 0.008* | 76.50 ± 0.059* | – |
50 | 79.43 ± 0.020* | 77.92 ± 0.053* | – | |
EDTA | 10 | – | – | 97.55 ± 0.016* |
Arbutus andrachne methanol extract | 10 | 52.13 ± 0.012* | 19.29 ± 0.291 | 44.52 ± 0.072 |
25 | 69.08 ± 0.002* | 30.33 ± 0.041 | 45.19 ± 0.047 | |
50 | 82.24 ± 0.008* | 46.77 ± 0.231 | 48.02 ± 0.051 | |
75 | 83.71 ± 0.004* | 65.57 ± 0.145* | 51.80 ± 0.142* | |
100 | 84.21 ± 0.011* | 77.68 ± 0.141* | 51.63 ± 0.144* | |
150 | 84.38 ± 0.010* | 81.30 ± 0.235* | 55.32 ± 0.055* | |
Euphorbia rigida methanol extract | 10 | 32.40 ± 0.004 | 24.87 ± 0.112 | 38.43 ± 0.031 |
25 | 34.21 ± 0.001 | 36.98 ± 0.058 | 42.31 ± 0.070 | |
50 | 55.75 ± 0.001* | 52.33 ± 0.064* | 45.18 ± 0.017 | |
75 | 69.08 ± 0.009* | 59.27 ± 0.072* | 48.19 ± 0.043 | |
100 | 78.13 ± 0.004* | 66.18 ± 0.126* | 49.60 ± 0.072 | |
150 | 82.40 ± 0.006* | 67.40 ± 0.129* | 51.44 ± 0.023* |