Table 1.

Experimental program and results for SFE-CO₂ of Lepidium apetalum seed oil.

No.	A	B	C	D	Pressure	Temperature	Time	Flow	Extraction
	Pressure	Temperature	Time	Flow rate	MPa	°C	min	rate L/h	yield (%)
1	0	0	0	0	25	60	90	25	29.92
2	1	−1	1	1	30	50	120	30	32.58
3	1	−1	1	−1	30	50	120	20	31.17
4	1	−1	−1	1	30	50	60	30	29.47
5	0	0	0	−2	25	60	90	15	28.09
6	1	1	−1	1	30	70	60	30	30.53
7	1	1	1	−1	30	70	120	20	34.42
8	−1	−1	−1	−1	20	50	60	20	25.01
9	−1	1	−1	−1	20	50	60	20	15.21
10	0	−2	0	0	25	60	60	30	30.11
11	−1	−1	1	−1	20	50	90	20	28
12	0	0	−2	0	25	60	30	25	25.13
13	0	0	0	0	25	60	90	25	31.97
14	0	0	0	0	25	60	90	25	33.06
15	0	0	0	0	25	60	90	25	29.52
16	−1	1	1	−1	20	70	120	20	27.07
17	−1	1	1	1	20	70	120	30	27.54
18	−1	−1	−1	1	20	50	60	30	28.33
19	2	0	0	0	35	60	90	25	30.32
20	0	0	0	0	20	60	90	25	33.05
21	−2	0	0	0	15	60	90	25	11.79
22	1	1	1	1	30	70	120	30	35.56
23	−1	1	−1	1	20	70	60	30	17.44
24	0	0	0	2	25	60	90	35	30.66
25	0	2	0	0	25	80	90	25	31.82
26	0	0	2	0	25	60	150	25	30.18
27	1	−1	−1	−1	30	50	60	20	31.06
28	0	0	0	0	25	60	90	25	31.98
29	1	1	−1	−1	30	70	60	20	30.73
30	−1	−1	1	1	20	50	120	30	28.15