Optimization of Extraction Process for Antidiabetic and Antioxidant Activities of Kursi Wufarikun Ziyabit Using Response Surface Methodology and Quantitative Analysis of Main Components

Table 7

Retention time, name, regression equation, contents, and linear range of 12 components in the purified prescription.

Number	(min)	Component	Regression equation		Content (%)	Linear range (μg/mL)
1	2.4	Gallic acid		0.9999	0.15	10.0–70.0
2	10.5	Catechin		0.9999	3.63	20.0–1100.0
3	13.0	Chlorogenic acid		1.0000	0.48	57.5–287.0
4	16.8	Epicatechin		0.9999	0.36	45.0–225.0
5	18.2	Corilagin		1.0000	1.97	130.0–650.0
6	40.9	Ellagic acid		0.9965	0.45	65.0–228.0
7	53.3	Hyperoside		1.0000	1.11	55.0–330.0
8	53.9	Rutin		0.9999	1.11	57.5–345.0
9	54.8	Isoquercitrin		1.0000	0.87	44.0–308.0
10	59.8	Avicularin		0.9995	0.22	30.0–150.0
11	63.9	Quercitrin		0.9998	0.31	30.0–150.0
12	80.9	Quercetin		0.9992	0.51	45.0–225.0