Table 3.
Analysis of variance (ANOVA) of responses for total phenolic and total flavonoid experiments.
| Source | Total Phenolics Compound (mg GAE/L) | Total Flavonoids (mg CE/L) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| DF | SS 1 | MS | F-Value | p-Value | SS 1 | MS | F-Value | p-Value | |
| Model | 5 | 627.396 | 125.479 | 180.33 | 0.0000 | 817.695 | 163.539 | 201.73 | 0.0000 |
| Linear | 2 | 323.797 | 161.898 | 232.67 | 0.0000 | 425.301 | 21.265 | 262.31 | 0.0000 |
| X 1 | 1 | 318.069 | 318.069 | 457.11 | 0.0000 | 376.899 | 376.899 | 464.91 | 0.0000 |
| X 2 | 1 | 5.728 | 5.728 | 8.23 | 0.024 | 48.402 | 48.402 | 59.7 | 0.0001 |
| Square | 2 | 163.005 | 81.503 | 117.13 | 0.0000 | 62.525 | 31.262 | 38.56 | 0.0002 |
| X1*X1 | 1 | 71.957 | 71.957 | 103.41 | 0.0000 | 46.037 | 46.037 | 56.79 | 0.0001 |
| X2*X2 | 1 | 133.584 | 133.584 | 191.98 | 0.0000 | 33.873 | 33.873 | 41.78 | 0.0003 |
| 2-Way Interaction | 1 | 140.594 | 140.594 | 202.05 | 0.0000 | 32.987 | 32.987 | 406.9 | 0.0000 |
| X1*X2 | 1 | 140.594 | 140.594 | 202.05 | 0.0000 | 32.987 | 32.987 | 406.9 | 0.0000 |
| Error | 7 | 4.871 | 0.696 | 0.5675 | 0.0811 | ||||
| Lack-of-Fit | 3 | 1.247 | 0.416 | 0.46 | 0.7258 | 0.2894 | 0.0965 | 1.39 | 0.3681 |
| Pure Error | 4 | 3.624 | 0.906 | 0.2781 | 0.0695 | ||||
| Total | 12 | 632.267 | 82.337 | ||||||
| R 2 | 0.9923 | 0.9931 | |||||||
| Adj R2 | 0.9868 | 0.9882 | |||||||
| Pred R2 | 0.9716 | 0.9593 | |||||||
1 Sum of squares; DF: degree of freedom; MD: mean squares *: multiplication. The term is significant at p ≤ 0.05. The term is significant at p ≤ 0.01. The term is significant at p ≤ 0.001.