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Journal of Engineering
/
2014
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Article
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Tab 2
/
Research Article
Application of
Full Factorial Design in Optimization of Solvent-Free Microwave Extraction of Ginger Essential Oil
Table 2
The 2
3
factorials design including the corresponding responses.
Run
Code variables
Oil yield
(%)
(extraction time)
(microwave power)
(sample type)
1
−1
−1
−1
0.10
2
1
−1
−1
0.26
3
−1
1
−1
0.14
4
1
1
−1
0.35
5
−1
−1
1
0.22
6
1
−1
1
0.20
7
−1
1
1
0.28
8
1
1
1
0.44
9
−1
−1
−1
0.12
10
1
−1
−1
0.25
11
−1
1
−1
0.14
12
1
1
−1
0.32
13
−1
−1
1
0.24
14
1
−1
1
0.17
15
−1
1
1
0.31
16
1
1
1
0.46