Table 4 Observed and estimated values of Box–Benhnken response surface design
No. | C (%) | B (mL/g) | D | Y (%) | Estimated value (%) |
|---|---|---|---|---|---|
1 | 1 | 1 | 0 | 12.66 | 12.60 |
2 | 0 | 0 | 1 | 13.02 | 12.65 |
4 | −1 | −1 | 0 | 10.58 | 10.69 |
5 | 1 | 1 | 0 | 11.95 | 11.84 |
6 | 0 | 0 | 0 | 13.92 | 14.13 |
7 | 0 | 0 | 0 | 13.38 | 14.13 |
8 | −1 | −1 | 0 | 12.05 | 12.10 |
9 | 1 | 1 | −1 | 12.96 | 12.69 |
10 | 1 | 1 | 1 | 12.44 | 12.87 |
11 | 0 | 0 | 0 | 14.44 | 14.13 |
12 | 0 | 0 | 0 | 14.14 | 14.13 |
13 | 0 | 0 | 1 | 13.85 | 13.53 |
14 | −1 | −1 | −1 | 12.09 | 11.67 |
15 | 0 | 0 | −1 | 14.79 | 14.13 |
16 | 0 | 1 | −1 | 12.22 | 12.60 |
17 | 0 | −1 | −1 | 12.50 | 12.82 |