Compound |  | % inhibition of β-galactosidase activity |
---|---|---|
None (control) | Â | 0 |
Green tea extract | 500 μg/ml | 75.4 ± 9.3* |
 | 250 μg/ml | 66.7 ± 11.2* |
 | 125 μg/ml | 43.6 ± 13.7* |
 | 62.5 μg/ml | 17.3 ± 10.1 |
EGCG | 500 μg/ml | 72.1 ± 9.8* |
 | 250 μg/ml | 61.5 ± 15.7* |
 | 125 μg/ml | 53 ± 9.5* |
 | 62.5 μg/ml | 26.4 ± 12.3 |