| Compd. No. | DPPH % inhibition antioxidant ± SD | ||
| 150 μmol∙L−1 | 300 μmol∙L−1 |
| |
| 5a | 52.08 ± 0.05 | 55.50 ± 0.15 |
|
| 5b | 52.20 ± 0.20 | 55.65 ± 0.29 |
|
| 5c | 51.76 ± 0.21 | 53.39 ± 0.11 |
|
| 5d | 51.88 ± 0.15 | 51.78 ± 0.08 |
|
| 5e | 56.01 ± 0.14 | 59.01 ± 0.05 |
|
| 5f | 52.85 ± 0.11 | 60.00 ± 0.01 |
|
| 6a | 56.65 ± 0.25 | 61.77 ± 0.31 |
|
| 6b | 53.25 ± 0.11 | 73.44 ± 0.05 |
|
| 6c | 53.25 ± 0.01 | 55.69 ± 0.05 |
|
| 6d | 60.01 ± 0.01 | 64.66 ± 0.05 |
|
| 6e | 61.33 ± 0.13 | 64.55 ± 0.15 |
|
| 6f | 71.70 ± 0.11 | 64.55 ± 0.15 |
|
| Ascorbic acid | 43.00 | 50.70 |
|