Table 6.
Independent variables and their levels for Box-Behnken design of hydrolysis reaction.
| Independent Variables | Symbol | Variable Levels | ||
|---|---|---|---|---|
| −1 | 0 | 1 | ||
| pH | X1 | 4.5 | 5.0 | 5.5 |
| Temperature (°C) | X2 | 40 | 50 | 60 |
| Enzyme quantity (mg) | X3 | 25 | 50 | 75 |
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