Table 6.
Components of the desirability function applied to obtain a balanced optimum for H2 production.
| Predictor/Response Variable | Goal | Lower Limit | Upper Limit | Importance | Best Solution | Desirability |
|---|---|---|---|---|---|---|
| Cellulose (g/L) | Within range | 10 | 50 | 3 | 25.33 | 0.95 |
| Yeast extract (g/L) | Within range | 1 | 2 | 3 | 1.94 | 0.95 |
| Magnesium chloride (g/L) | Within range | 1 | 2 | 3 | 1.75 | 0.95 |
| Concentration (mmol H2/L culture) | Maximize | 12.71 | 55 | 5 | 52.82 | 0.95 |
| Substrate specific yield (mol H2/mol glucose) | Within range | 0.98 | 1.31 | 3 | 1.24 | 0.95 |
| Specific productivity (mmol H2/(g·protein·h) | Within range | 3.91 | 6.79 | 3 | 6.4 | 0.95 |