Table 6.
Full experimental central composite design with coded and actual level of variables and the response function
| A: CMC g % | B: MgSO4 | Ph | Cellulase activity U/mL | |||||
|---|---|---|---|---|---|---|---|---|
| Run | Actual | Coded | Actual | Coded | Actual | Coded | Actual | Predicted |
| 1 | 0.5 | −1 | 0.05 | −1 | 7 | −1 | 23.6 | 23.88629 |
| 2 | 1.5 | +1 | 0.05 | −1 | 7 | −1 | 24.55 | 26.20009 |
| 3 | 0.5 | −1 | 0.5 | +1 | 7 | −1 | 25.05 | 27.348 |
| 4 | 1.5 | +1 | 0.5 | +1 | 7 | −1 | 24.85 | 26.23679 |
| 5 | 0.5 | −1 | 0.05 | −1 | 10 | +1 | 16.85 | 17.38949 |
| 6 | 1.5 | +1 | 0.05 | −1 | 10 | +1 | 24 | 23.62829 |
| 7 | 0.5 | −1 | 0.5 | +1 | 10 | +1 | 20.55 | 20.8262 |
| 8 | 1.5 | +1 | 0.5 | +1 | 10 | +1 | 22 | 23.63999 |
| 9 | 0.159104 | −α | 0.275 | 0 | 8.5 | 0 | 25.1 | 24.00702 |
| 10 | 1.840896 | +α | 0.275 | 0 | 8.5 | 0 | 29.95 | 28.3188 |
| 11 | 1 | 0 | −0.1034 | –α | 8.5 | 0 | 20.7 | 20.37752 |
| 12 | 1 | 0 | 0.653403 | +α | 8.5 | 0 | 25.7 | 23.2983 |
| 13 | 1 | 0 | 0.275 | 0 | 5.977311 | −α | 29.8 | 27.3863 |
| 14 | 1 | 0 | 0.275 | 0 | 11.02269 | +α | 20.05 | 19.73953 |
| 15 | 1 | 0 | 0.275 | 0 | 8.5 | 0 | 24.3 | 27.31957 |
| 16 | 1 | 0 | 0.275 | 0 | 8.5 | 0 | 29 | 27.31957 |
| 17 | 1 | 0 | 0.275 | 0 | 8.5 | 0 | 28.7 | 27.31957 |
| 18 | 1 | 0 | 0.275 | 0 | 8.5 | 0 | 24.75 | 27.31957 |
| 19 | 1 | 0 | 0.275 | 0 | 8.5 | 0 | 26.9 | 27.31957 |
| 20 | 1 | 0 | 0.275 | 0 | 8.5 | 0 | 29.8 | 27.31957 |