Table 1.
Coded and uncoded values of variables and their levels
| Independent variables | Coded levels | −1 | 0 | +1 |
|---|---|---|---|---|
| Sucrose concentration (°B) | A | 50 | 60 | 70 |
| Time (h) | B | 2 | 3 | 4 |
| Temperature(°C) | C | 35 | 45 | 55 |
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