Study on Optimal Extraction and Hypoglycemic Effect of Quercetin

Table 2

Box–Behnken experimental design.

Run	Factor A concentration of vitriol	Factor B extraction time (min)	Factor C solid-liquid ratio (g/mL)
1	0.0625	30	1 : 50
2	0.625	20	1 : 100
3	0.1	20	1 : 150
4	0. 025	10	1 : 100
5	0.1	20	1 : 50
6	0.0625	10	1 : 50
7	0.0625	30	1 : 150
8	0.0625	20	1 : 100
9	0.0625	10	1 : 150
10	0.0625	20	1 : 100
11	0.025	20	1 : 150
12	0.025	20	1; 50
13	0.1	30	1 : 100
14	0.0625	20	1 : 100
15	0.01	10	1 : 100
16	0.025	30	1 : 100
17	0.0625	20	1 : 100