Table 3.
The reducing abilities of propolis and standards a concentration of 30 μg/mL.
| Antioxidants | Fe3+-Reducing | Cu2+-Reducing | FRAP-Reducing | |||
|---|---|---|---|---|---|---|
| λ700 | r2 | λ700 | r2 | λ700 | r2 | |
| BHA | 1.257 ± 0.088 | 0.9523 | 1.800 ± 0.156 | 0.9742 | 0.884 ± 0.116 | 0.9899 |
| BHT | 2.018 ± 0.029 | 0.9466 | 2.912 ± 0.012 | 0.9969 | 2.089 ± 0.027 | 0.9581 |
| α-Tocopherol | 1.895 ± 0.008 | 0.9402 | 1.139 ± 0.096 | 0.9967 | 1.995 ± 0.016 | 0.9807 |
| Trolox | 1.545 ± 0.019 | 0.9966 | 2.323 ± 0.049 | 0.9980 | 1.755 ± 0.093 | 0.9990 |
| Propolis | 0.894 ± 0.020 | 0.9953 | 0.778 ± 0.054 | 0.9986 | 1.114 ± 0.045 | 0.9970 |