Table 7.

The results obtained from the CCD design of the experiments.

Run	Factor 1	Factor 2	Factor 3	Yield	Solubility
	A: Pressure (MPa)	B: Temperature (°C)	C: Water content in ethane (%)	(g/g %)	(g G. procumbens/g CO2) × 103
1	24	60	30	12.9	2.4
2	24	70	30	15.9	2.35
3	21	58	20	4.05	0.2
4	18	70	30	6.26	0.1
5	24	60	10	3.73	0.3
6	21	72	20	7.87	0.2
7	25	65	20	12.74	1.0
8	21	65	33	11.8	0.8
9	21	65	20	4.9	0.4
10	18	60	30	2.23	0.5
11	21	65	20	5.61	0.3
12	24	70	10	4.5	0.9
13	18	70	10	2.47	0.3
14	18	60	10	2.35	0.1
15	21	65	7	3.18	0.8
16	17	65	20	2.9	0.5
17	21	65	20	5.8	0.4
18	21	65	20	6.88	0.5
19	21	65	20	6.9	0.6
20	21	65	20	7.5	0.3