Table 4. Inhibitory effects of fraction extracts from P. persica twigs and its solvent-soluble portions against α-glucosidase

Samples	Inhibition activity (%)					IC50 values (μg/mL)
	500 μg/mL	250 μg/mL	125 μg/mL	62.5 μg/mL	31.3 μg/mL
Hot water	81.9±0.122)c3)	81.4±0.17c	61.0±0.16c	34.9±0.15c	19.0±0.14c	97.0±9.8c
n-Hexane layer	24.7±0.16e	14.8±0.14f	8.3±0.16f	4.4±0.17f	1.0±0.12f	>500
EtOAc layer	99.3±0.17a	95.2±0.13b	85.5±0.14a	64.6±0.18a	42.7±0.16a	38.2±1.6e
n-BuOH layer	99.1±0.16a	96.1±0.14a	84.1±0.13b	61.3±0.12b	35.1±0.18b	47.0±0.8d
H2O layer	60.4±0.18d	44.2±0.12e	24.6±0.14e	13.1±0.16e	10.2±0.16e	337.5±18.7a
Acarbose1)	91.9±0.16b	70.1±0.16d	49.5±0.13d	30.4±0.18d	16.4±0.14d	122.2±7.6b

Acarbose was used as a positive control substance.
Mean±SD (n=3).
^a-fValues with different superscript letters in the column are significantly different (p<0.05).