Table 1 Design and results of enzyme hydrolysis response surface experiments
No. | Coded values | Actual values | DH (%) | ||||
|---|---|---|---|---|---|---|---|
X1 | X2 | X3 | X1: enzyme dosage (%) | X2: pH | X3: temperature (°C) | ||
1 | −1 | 0 | 1 | 2.4 | 8 | 60 | 40.58 |
2 | 1 | 0 | −1 | 3.2 | 8 | 50 | 46.76 |
3 | 0 | 0 | 0 | 2.8 | 8 | 55 | 46.50 |
4 | 0 | 0 | 0 | 2.8 | 8 | 55 | 47.03 |
5 | 0 | 0 | 0 | 2.8 | 8 | 55 | 47.20 |
6 | 0 | 0 | 0 | 2.8 | 8 | 55 | 46.00 |
7 | 0 | −1 | 1 | 2.8 | 7.5 | 60 | 41.52 |
8 | 0 | 0 | 0 | 2.8 | 8 | 55 | 47.02 |
9 | −1 | 1 | 0 | 2.4 | 8.5 | 55 | 47.54 |
10 | 1 | 1 | 0 | 3.2 | 8.5 | 55 | 47.58 |
11 | 0 | −1 | −1 | 2.8 | 7.5 | 50 | 44.11 |
12 | 1 | 0 | 1 | 3.2 | 8 | 60 | 43.35 |
13 | −1 | −1 | 0 | 2.4 | 7.5 | 55 | 41.43 |
14 | 0 | 1 | −1 | 2.8 | 8.5 | 50 | 47.39 |
15 | −1 | 0 | −1 | 2.4 | 8 | 50 | 42.68 |
16 | 0 | 1 | 1 | 2.8 | 8.5 | 60 | 43.44 |
17 | 1 | −1 | 0 | 3.2 | 7.5 | 55 | 46.70 |
