Table 3.
Regression model and analysis of variance for SDF yield.
| Source of Variation | Sum of Squares | df | Mean Square | F-Value | p-Value | Significance |
|---|---|---|---|---|---|---|
| Model | 38.36 | 9 | 4.26 | 48.84 | <0.0001 | ** |
| A: Temperature | 0.6903 | 1 | 0.6903 | 7.91 | 0.0261 | * |
| B: Time | 1.79 | 1 | 1.79 | 20.47 | 0.0027 | ** |
| C: Solid-to-liquid ratio | 0.9453 | 1 | 0.9453 | 10.83 | 0.0133 | * |
| AB | 0.0676 | 1 | 0.0676 | 0.7746 | 0.4080 | |
| AC | 0.0020 | 1 | 0.0020 | 0.0232 | 0.8832 | |
| BC | 0.8100 | 1 | 0.8100 | 9.28 | 0.0187 | * |
| A2 | 3.61 | 1 | 3.61 | 41.39 | 0.0004 | ** |
| B2 | 9.71 | 1 | 9.71 | 111.29 | <0.0001 | ** |
| C2 | 17.54 | 1 | 17.54 | 201.04 | <0.0001 | ** |
| Residual | 0.6109 | 7 | 0.0873 | |||
| Lack of Fit | 0.4869 | 3 | 0.1623 | 5.24 | 0.0718 | Not significant |
| Pure Error | 0.1240 | 4 | 0.0310 | |||
| Total | 38.97 | 16 |
Note: ** p < 0.01 (highly significant); * p < 0.05 (significant).