Table 11.

Enzyme inhibitory properties of tested samples (IC₅₀ (mg /mL)).

Sources of Leaves and Standards	AChE	BChE	Tyrosinase	Amylase
In vitro cultures	1.15 ± 0.04 b	0.95 ± 0.10 c	0.71 ± 0.01 b	1.41 ± 0.01 b
The greenhouse	1.07 ± 0.10 b	1.67 ± 0.11 b	0.71 ± 0.01 b	1.37 ± 0.05 b
Galantamine	0.003 ± 0.001 a	0.007 ± 0.002 a	nt	nt
Kojic acid	nt	nt	0.08 ± 0.001 a	nt
Acarbose	nt	nt	nt	0.68 ± 0.01 a

nt: Not tested. Means ± SDs, followed by the same letters within a column, were not significantly different p < 0.05 by DMRT.