Table 7. Inhibition effects on tyrosinase in the extracts of Metaplexis japonica Makino from leaf and stem

Sample1)	Tyrosinase inhibition (%)
	62.5 μg/mL	125 μg/mL	250 μg/mL	500 μg/mL	1,000 μg/mL
	ALWE	12.71±0.59^b3)	17.87±3.51^b	29.07±4.06^b	32.65±1.23^bc	40.21±1.03^c
ASWE	9.90±0.92^b	11.34±2.13^c	15.95±1.74^cd	24.67±3.94^c	27.56±7.64^d
ALEE	4.47±0.91^c	11.55±2.93^c	12.85±2.93^d	32.99±4.88^bc	57.04±2.10^b
ASEE	13.81±0.92^b	18.35±1.69^b	20.82±2.54^c	37.25±7.93^b	44.67±4.64^c
AsA2)	53.33±4.36^a	73.68±3.78^a	74.98±5.42^a	89.42±2.10^a	100.00±0.00^a

ALWE, Aneilema japonica leaf water extract; ASWE, Aneilema japonica stem water extract; ALEE, Aneilema japonica leaf ethanol extract; ASEE, Aneilema japonica stem ethanol extract.
AsA, ascorbic acid.
All value are expressed as mean±SD of triplicate Determinations. Different superscripts within the column are significantly different at p<0.05 by Duncan‘s multiple range test.