TABLE 5.
ANOVA analysis from central composite design with product-to-substrate yield as response: ANOVA analysis indicates a significant (p < 0.05) effect on the product-to-substrate yield for glucose (A), K2HPO4 (B), and the interaction between glucose and K2HPO4 (AB). The R 2 is 0.97.
| Factor | Degrees of freedom | Mean square | F-value | p-value |
|---|---|---|---|---|
| Model | 7 | 0.0090 | 171.93 | < 0.0001 |
| Glucose (A) | 1 | 0.0273 | 524.59 | < 0.0001 |
| K2HPO4 (B) | 1 | 0.0189 | 363.31 | < 0.0001 |
| AB | 1 | 0.0013 | 24.80 | < 0.0001 |
| A2 | 1 | 0.0039 | 74.55 | < 0.0001 |
| B2 | 1 | 0.0095 | 182.82 | < 0.0001 |
| A2B | 1 | 0.0108 | 206.49 | < 0.0001 |
| A2B2 | 1 | 0.0003 | 5.01 | 0.0311 |
| Lack of Fit | 1 | 0.0001 | 2.73 | 0.1067 |