Table 5.

The results of varying experiment design.

Run	X1	X2	X3	Y
	Extract Temperature (°C)	Solid–Liquid Ratio (g/mL)	IL Concentration (mmol/L)	Yield of TBFs (mg/g)
1	60	12	0.6	14.66
2	60	10	0.8	13.94
3	60	14	0.8	14.61
4	50	12	0.8	18.22
5	50	12	0.8	18.51
6	50	14	0.6	16.57
7	40	12	1.0	13.62
8	40	10	0.8	15.18
9	50	12	0.8	18.25
10	50	14	1.0	13.56
11	50	12	0.8	18.41
12	50	10	1.0	12.89
13	50	10	0.6	16.20
14	40	12	0.6	17.51
15	60	12	1.0	13.28
16	50	12	0.8	18.53
17	40	14	0.8	15.88