Table 1.
Independent variables and their levels for the 25 factorial experimental design.
| Factor | Name | Units | Coded levels | |
|---|---|---|---|---|
| −1 | +1 | |||
| A | Maltose | % | 0.1 | 0.5 |
| B | NaH2PO4 | % | 0.01 | 0.1 |
| C | Beef extract | % | 0.05 | 0.25 |
| D | pH | 7.0 | 8.0 | |
| E | Moisture | % | 60 | 100 |
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