Table 3
Inhibition activity of extracts from Aster scaber on xanthine oxidase

Phenolic concent (μg/mL)	Sample
	Water extracts		Ethanol extracts		Allopurinol
	Uric acid (μg/mL)	Inhibition activity (%)	Uric acid (μg/mL)	Inhibition activity (%)	Uric acid (μg/mL)	Inhibition activity (%)
Control	45.25±0.12¹⁾	-	45.70±0.17	-	45.61±0.24	-
50	4.14±0.26	90.91±0.57^b	35.54±0.31	21.93±0.68^a	10.03±0.22	77.97±0.49^a
100	5.15±0.95	88.69±2.10^ab	23.24±0.40	48.93±0.88^b	9.23±0.40	79.73±0.88^ab
150	6.34±0.50	86.07±1.09^a	16.85±1.29	62.99±2.83^c	7.83±0.52	82.80±1.13^b
200	2.77±0.50	93.92±1.09^c	9.02±0.88	80.19±1.93^d	4.23±0.42	90.72±0.93^c

Mean±SD (n=6), means with different superscript letters within column are significantly different at p<0.05 by Duncan's multiple range tests. Allopurinol was used for control.