Table 3.
Antioxidant activity of LPPC and its metabolites in different assays.
| Compounds | IC 50 (μg/ml) | |
|---|---|---|
| DPPH· | ·OH | |
| LPPC | 9.34 ± 0.16bc | 143.47 ± 3.26b |
| (-)-Epicatechin | 5.43 ± 0.10a | 121.27 ± 1.80a |
| A-type dimer | 5.86 ± 0.14a | 126.57 ± 2.58a |
| A-type trimer | 8.00 ± 0.18b | 122.73 ± 2.35a |
| 3-Hydroxyphenylacetic acid | 82.60 ± 1.95h | 803.47 ± 6.38g |
| 3-Hydroxyphenylpropionic acid | 77.83 ± 0.93g | 841.57 ± 4.45h |
| 4-Hydroxyphenylpropionic acid | 74.63 ± 1.40f | 813.87 ± 5.48g |
| Vanillic acid | 86.06 ± 1.33i | 897.33 ± 9.90i |
| Shikimic acid | 8.96 ± 0.18bc | 186.53 ± 7.56d |
| Caffeic acid | 9.88 ± 0.55c | 161.47 ± 3.31c |
| p-Coumaric acid | 16.53 ± 0.65d | 220.13 ± 4.57e |
| m-Coumaric acid | 21.93 ± 1.25e | 256.43 ± 9.33f |
The means in the same column sharing a different letter were significantly different (P < 0.05) between the groups.