Table 1.

Extraction conditions of different extraction methods in Flos Sophorae Immaturus (FSI).

No.	Flavonoids (Extraction Yield (%))							Method	Solvent	Ratio mL/g	Time	Temperature (°C)	Literature
	Rutin	Nicoti- Florin	Narci- Ssoside	Kaem-Pferol	Isorham-Netin	Querc-Etin	Genistein
1	11.68	1.50	2.39	0.31	0.33	2.76	-	Microwave	deep eutectic solvent	26	20 m	62	Gen Wang, 2018 [15]
2	32.11	-	-	0.06	0.17	6.26	0.002	Microwave	100% methanol	50	80 s	Unclear	Jin-Liang Liu, 2016 [16]
3	20.86	0.43	2.59	-	-	-	-	Ultrasound	82% methanol	56	60 m	Unclear	Zhisheng Xie, 2014 [17]
4	13.38		1.98			0.55		Ultrasound	80% methanol	500:3	30 m	30	Zhisheng Xie, 2014 [21]
5	25.26	-	-	-	-	-	-	Infrared	70% methanol	30	4.8 m	Unclear	Fa-jie Li, 2011 [18]
6	10.28							FIASE	Methanol	25	6 m		ZhibinGan, 2011 [19]
7	23.59							Water bath	1.72 mol/L 1-butyl-3-methylimidazoliumchloride	75	20 m	50	Jianlin Huang, 2010 [25]
8	21.1					0.62		Ultrasound	Methanol	50	30 m	60	Jingjing Xu, 2007 [26]