Table 2.

Effect of green tea extract and EGCG on β-galactosidase activity of S. moorei

Compound		% inhibition of β-galactosidase activity
None (control)		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

*Significantly different at P < 0.01 compared to control.