Table 1 The orthogonal test of four factors at three different levels
Factors | A duration of extraction (hour) | B maceration time(min) | C extract-solvent ratio(times) | D number of extraction(times) |
|---|---|---|---|---|
1 | 1 | 20 | 10 | 1 |
2 | 1.5 | 40 | 15 | 2 |
3 | 2 | 60 | 20 | 3 |
Factors | A duration of extraction (hour) | B maceration time(min) | C extract-solvent ratio(times) | D number of extraction(times) |
|---|---|---|---|---|
1 | 1 | 20 | 10 | 1 |
2 | 1.5 | 40 | 15 | 2 |
3 | 2 | 60 | 20 | 3 |