Table 3.
Parameter ranges and identified optimal parameter values for the improved model (experiments #1 to #7 were used for model setup).
| Parameter | Description | Unit | Min | Max | Optimal | 90% CI |
|---|---|---|---|---|---|---|
| death rate constant | h-1 | 0 | 0.01 | 5.44 × 10-4 | 6.2 × 10-5 | |
| maximum specific growth rate | h-1 | 0 | 10 | 0.162 | 0.17 | |
| maximum specific growth rate ammonium | h-1 | 0 | 10 | 0.578 | 0.48 | |
| maximum specific growth rate phosphate | h-1 | 0 | 10 | 2.1 × 10-5 | 0.37 | |
| Sucrose saturation constant | g L-1 | 0 | 100 | 72.53 | 73.4 | |
| Sucrose inhibition constant | g L-1 | 0 | 100 | 100.0 | 73.3 | |
| Ammonium saturation constant | g L-1 | 0 | 1 | 0.221 | 0.22 | |
| Ammonium inhibition constant | g L-1 | 0 | 1 | 0.221 | 0.065 | |
| Nitrate saturation constant | g L-1 | 0 | 5 | 0.835 | 0.25 | |
| Nitrate inhibition constant | g L-1 | 0 | 5 | 1.0 | 0.06 | |
| Fructose saturation constant | g L-1 | 0 | 30 | 1.108 | 0.71 | |
| Fructose inhibition constant | g L-1 | 0 | 30 | 1.404 | 0.51 | |
| .. | Glucose saturation constant | g L-1 | 0 | 30 | 18.0 | 17.1 |
| Glucose inhibition constant | g L-1 | 0 | 30 | 18.0 | 12.0 | |
| Sucrose hydrolysis constant | h-1 | 0 | 1 | 0.396 | 0.24 | |
| Ammonium consumption rate | h-1 | 0 | 1 | 6.9 × 10-3 | 1.9 × 10-3 | |
| Nitrate consumption rate | h-1 | 0 | 1 | 1.71 × 10-2 | 2.7 × 10-2 | |
| Fructose consumption rate | h-1 | 0 | 1 | 8.34 × 10-2 | 2.9 × 10-2 | |
| Glucose consumption rate | h-1 | 0 | 1 | 0.273 | 0.26 | |
| Phosphate consumption rate | h-1 | 0 | 1 | 2.68 × 10-2 | 3.2 × 10-3 |