Table 4.
The BBD design and the responses of the dependent variables.
| Test Number | Time point of L-Met Addition (h) | Glucose Concentration (g/L) | Yeast Concentration (g/L) | 3-Met Concentration (g/L) | |||
|---|---|---|---|---|---|---|---|
| A | Code A | B | Code B | C | Code C | Y | |
| 1 | 6 | 0 | 30 | −1 | 1.2 | 1 | 2.03 |
| 2 | 0 | −1 | 40 | 0 | 1.2 | 1 | 2.30 |
| 3 | 6 | 0 | 40 | 0 | 0.8 | 0 | 2.98 |
| 4 | 6 | 0 | 30 | −1 | 0.4 | −1 | 1.04 |
| 5 | 6 | 0 | 50 | 1 | 1.2 | 1 | 2.49 |
| 6 | 6 | 0 | 40 | 0 | 0.8 | 0 | 2.83 |
| 7 | 6 | 0 | 50 | 1 | 0.4 | −1 | 2.03 |
| 8 | 12 | 1 | 50 | 1 | 0.8 | 0 | 2.07 |
| 9 | 12 | 1 | 40 | 0 | 1.2 | 1 | 1.88 |
| 10 | 6 | 0 | 40 | 0 | 0.8 | 0 | 3.04 |
| 11 | 12 | 1 | 30 | −1 | 0.8 | 0 | 1.61 |
| 12 | 0 | −1 | 30 | −1 | 0.8 | 0 | 2.03 |
| 13 | 0 | −1 | 50 | 1 | 0.8 | 0 | 2.34 |
| 14 | 0 | −1 | 40 | 0 | 0.4 | −1 | 1.84 |
| 15 | 12 | 1 | 40 | 0 | 0.4 | −1 | 1.48 |