Table 2.
Analysis of variance for the effect of process variables on drying time and moisture diffusivity
| Source | Drying time | Moisture diffusivity | |||||
|---|---|---|---|---|---|---|---|
| df | Sum of square | Mean sum of square | F-ratio | Sum of square | Mean sum of square | F-Ratio | |
| Treatment | 23 | 372487.5 | 16195.11 | 161.95** | 175.44 | 7.632 | 122.05** |
| Main effects | |||||||
| Syrup temperature(A) | 1 | 112.5 | 112.5 | 1.13 | 0.13 | 0.13 | 2.12 |
| Sugar concentration (B) | 2 | 38025 | 19012.5 | 190.13** | 31.82 | 15.91 | 254.59** |
| Drying air temperature(C) | 3 | 290138 | 96712.5 | 967.13** | 132.83 | 44.28 | 708.41** |
| A × B | 2 | 21825 | 10912.5 | 109.13** | 2.65 | 1.32 | 21.19** |
| A × C | 3 | 8437.5 | 2812.5 | 28.13** | 1.57 | 0.52 | 8.362* |
| B × C | 6 | 2475 | 412.5 | 4.13** | 4.41 | 0.73 | 11.75** |
| A × B × C | 6 | 11475 | 1912.5 | 19.13** | 2.03 | 0.34 | 5.42** |
| Error | 48 | 4800 | 100 | 3 | 0.06 | ||
**Significant at p ≤ 0.01, * Significant at p ≤ 0.05 level