Table 2.
ANOVA for response surface regression model for total yield of target molecules (mg/g) from green tea leaf extracts.
| Source | DF | SS | MS | F Value | Prob > F | Contribution (%) | Conclusion |
|---|---|---|---|---|---|---|---|
| Regression model | 6 | 13,574 | 2262.3 | 13.5449 | 0.0003 | Very significant | |
| X1-Temperature (°C) | 1 | 65.38 | 468.32 | 2.804 | 0.125 | 5 | Not significant |
| X2-Modifier (%) | 1 | 3416.8 | 1092.2 | 6.5391 | 0.0285 | 12 | Significant |
| X3-H2O (%) | 1 | 7716.5 | 3873.1 | 23.1893 | 0.0007 | 42 | Very significant |
| X12 | 1 | 579.65 | 433.5 | 2.5955 | 0.1382 | 5 | Not significant |
| X22 | 1 | 616.39 | 528.33 | 3.1633 | 0.1057 | 6 | Not significant |
| X32 | 1 | 1179.1 | 1179.1 | 7.0595 | 0.024 | 13 | Significant |
| Residuals | 10 | 1670.2 | 167.02 | 18 | |||
| Total | 16 | 15,244 | |||||
| Degrees of freedom |
Sum of squares | Mean square |