Table 1.
DPPH radical scavenging activity of the methanolic extract of Anemarrhena asphodeloides and its n-hexane, EtOAc-, n-BuOH-, and H₂O-soluble por tions

Conc. (mg/mL)	Scavenging activity (%)1)						IC50 (mg/ml)
	1000	500	250	125	62.5	31.3
	70% MeOH ext.	81.5	61.3	42.1	22.8	11.9		5.4	335.5±7.5
n-Hexane layer	-3)	-	-	-	-	-	>1000
EtOAc layer	87.6	77.0	64.2	48.6	34.4	19.2	134.4±1.4
n-BuOH layer	91.2	82.1	70.9	50.7	32.9	22.4	118.2±4.1
H2O layer	32.2	19.9	8.8	1.1	7.0	-	>1000
(+)-Catechin2)	93.8	93.6	93.4	93.5	88.1	72.2	17.0±1.0

Data represent the mean±SD three replications.
(+)-Catechin was used as a positive control.
Not detected