Table 3.
Antioxidant (DPPH) and total reducing power of A. rosea extracts
| Extract | DPPH Inhibition (%) | IC₅₀ (µg/mL) | FRAP (µmol Fe²⁺/g) | Relative Reducing Power (%) |
|---|---|---|---|---|
| Vitamin C | 90.0 ± 0.1 | 15.6 ± 0.8 µM | 350.2 ± 17.5 | 100.0 |
| n-Butanol | 90.0 ± 2.5 | 18.5 ± 1.1 | 270.5 ± 12.0 | 77.3 |
| Essential Oil | 82.0 ± 0.4 | 19.8 ± 0.9 | 300.1 ± 15.0 | 85.7 |
| Ethyl Acetate | 80.0 ± 3.0 | 19.1 ± 1.0 | 200.3 ± 10.5 | 57.2 |
| Methanol | 52.0 ± 3.3 | 45.3 ± 2.5 | 275.0 ± 13.0 | 78.5 |
| Chloroform | 48.0 ± 2.8 | 38.1 ± 1.8 | 150.0 ± 8.0 | 42.8 |
| n-Hexane | 22.0 ± 1.3 | > 100 | 80.0 ± 5.5 | 22.8 |