Table 1.
Antioxidant activity of the extracted compounds at 100 μM.
| Compounds | ABTS (%) | DPPH (%) | Chelating (%) | Reducing Power (OD 700) |
|---|---|---|---|---|
| Liriodenine (1) | 12.9 | na | 3.4 | 0.105 |
| Lysicamine (2) | 6.4 | 24.7 | 7.8 | 0.302 |
| (−)-Anonaine (3) | 14.2 | na | 1.7 | 0.128 |
| (−)-Asimilobine (4) | 12.4 | 3.9 | 5.2 | 0.109 |
| (−)-Caaverine (5) | na | na | 7.8 | 0.225 |
| (−)-N-Methylasimilobine (6) | 23.5 | na | 6.9 | 0.116 |
| (−)-Nuciferine (7) | 2.8 | 9.1 | 11.3 | 0.110 |
| (−)-Nornuciferine (8) | 5.6 | 16.9 | 7.8 | 0.075 |
| (−)-Roemerine (9) | 1.8 | na | 1.7 | 0.090 |
| 7-Hydroxydehydronuciferine (10) | 5.3 | na | na | 0.120 |
| Cepharadione B (11) | 3.2 | 5.0 | 7.5 | 0.135 |
| β-Sitostenone (12) | na | 1.3 | na | - |
| Phenophytin-A (14) | 6.8 | 1.2 | 10.4 | - |
| Aristophyll-C (15) | na | 1.3 | 6.9 | - |
| MeOH extract | 35.6 | 40.2 | 13.3 | - |
| Vitamin C | 97 | 100 | - | - |
| EDTA | - | - | 26.8 | - |
| BHA | - | - | - | 0.603 |
Data in the table are means ± S.D. of n = 3; -: no testing; na: not active.