Table 5.

The cell viability of different components on HepG2 cells.

Samples	Cell survival rate (%)a
	30 μg/mL	60 μg/mL	120 μg/mL
Crude ethanol extract	109.24 ± 2.89	108.33 ± 3.81	111.41 ± 2.82
Crude flavonoid extract	104.91 ± 3.49	105.25 ± 4.10	104.38 ± 5.38
Quercetin-3-O-robinobioside (1)	99.48 ± 5.87	108.56 ± 6.03	110.89 ± 2.50
Rutin (2)	97.62 ± 6.31	91.67 ± 7.12	98.81 ± 5.66
Quercetin-3-O-β-D-glucoside (3)	109.20 ± 2.90	118.32 ± 3.81	111.42 ± 2.82
Kaempferol-3-O-robinobioside (4)	97.81 ± 6.19	102.03 ± 4.39	103.68 ± 2.72
Kaempferol-3-O-rutinoside (5)	108.32 ± 6.29	108.10 ± 10.72	104.41 ± 4.03
Metformin	100.16 ± 3.53	102.63 ± 3.53	100.24 ± 3.24
Blank controlb	100