Table 2. Range of variation of the independent factors used in the central composite design.
Variable | Code | Level of variation | ||||
---|---|---|---|---|---|---|
|
||||||
−1.68 | −1 | 0 | 1 | 1.68 | ||
JAP (g/L) | A | 53.2 | 60.0 | 70.0 | 80.0 | 86.8 |
Peptone (g/L) | B | 9.9 | 15.0 | 22.5 | 30.0 | 35.1 |
Solution volume (mL) | C | 33.2 | 40.0 | 50.0 | 60.0 | 66.8 |