Table 5.
Analysis of variance (ANOVA) test for Box–Behnken design Cellulase.
| Source | DF | Adj SS | Adj MS | F-Value | P-Value |
|---|---|---|---|---|---|
| Model | 14 | 334.134 | 23.867 | 18.78 | 0.000 |
| Linear | 4 | 248.202 | 62.051 | 48.81 | 0.000 |
| A-Moisture content | 1 | 36.192 | 36.192 | 28.47 | 0.000 |
| B-pH | 1 | 0.190 | 0.190 | 0.15 | 0.706 |
| C-Inoculum | 1 | 158.268 | 158.268 | 124.50 | 0.000 |
| D-Time | 1 | 53.552 | 53.552 | 42.13 | 0.000 |
| Square | 4 | 60.931 | 15.233 | 11.98 | 0.000 |
| A∗A | 1 | 2.193 | 2.193 | 1.73 | 0.214 |
| B∗B | 1 | 0.472 | 0.472 | 0.37 | 0.554 |
| C∗C | 1 | 5.057 | 5.057 | 3.98 | 0.069 |
| D∗D | 1 | 33.200 | 33.200 | 26.12 | 0.000 |
| 2-Way Interaction | 6 | 25.001 | 4.167 | 3.28 | 0.038 |
| A∗B | 1 | 2.772 | 2.772 | 2.18 | 0.165 |
| A∗C | 1 | 2.512 | 2.512 | 1.98 | 0.185 |
| A∗D | 1 | 3.098 | 3.098 | 2.44 | 0.144 |
| B∗C | 1 | 2.789 | 2.789 | 2.19 | 0.164 |
| B∗D | 1 | 0.325 | 0.325 | 0.26 | 0.622 |
| C∗D | 1 | 13.506 | 13.506 | 10.62 | 0.007 |
| Error | 12 | 15.254 | 1.271 | ||
| Lack-of-Fit | 10 | 15.117 | 1.512 | 22.00 | 0.044 |
| Pure Error | 2 | 0.137 | 0.069 | ||
| Total | 26 | 349.389 |
| Model Summary | |||
|---|---|---|---|
| S | R-Sq | R-Sq (adj) | R-Sq (pred) |
| 1.12747 | 95.63% | 90.54% | 74.99% |