[Retracted] Optimization of Flash Extraction of Akebia trifoliata Seed Oil by the Box-Behnken Response Surface Methodology and Comparison of Oil Yields from Different Origins

Table 2

Box-Behnken response surface method design and results.

Test no.	Liquid-solid ratio (ml/g)	Extraction voltage (V)	Extraction time (s)	Oil yield (%)
1	1	0	-1	19.14
2	0	0	0	19.74
3	1	1	0	19.55
4	-1	0	-1	18.45
5	0	-1	1	18.85
6	1	0	1	19.45
7	0	0	0	19.83
8	0	0	0	19.57
9	0	0	0	19.66
10	0	1	-1	18.74
11	0	-1	-1	18.54
12	0	0	0	19.72
13	1	-1	0	19.43
14	0	1	1	19.02
15	-1	1	0	18.87
16	-1	-1	0	18.73
17	-1	0	1	18.76