Table 4.
Values of coded levels of the 3 tested factors used for the D-optimal design
| Factor | Level | ||
|---|---|---|---|
| −1 | 0 | + 1 | |
| pH (A) | 5.5 | 7 | 8.5 |
| Temperature (B, °C) | 23 | 30 | 37 |
| Inoculum size (C, % v/w) | 5 | 20 | 35 |
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