Table 4.
Parameter values (means ± SD) of the models (A.6) and (A.7) used for predicting the biphasic growth of Ent. faecium CECT 410 and lactic acid production in the two realkalized fed-batch fermentations.
| Parameter | Fed-batch fermentation I | Fed-batch fermentation II |
|---|---|---|
| μmax1 (h−1) | 0.130 ± 0.0341 | 0.365 ± 0.0653 |
| KN1 (g/L) | 0.050 ± 0.0165 | 0.029 ± 0.0046 |
| Nmin1 (g/L) | 0.346 ± 0.0180 | 0.331 ± 0.0038 |
| μmax2 (h−1) | 0.300 ± 0.0215 | 0.118 ± 0.0108 |
| KN2 (g/L) | 0.0012 ± 0.00001 | 0.020 ± 0.0053 |
| Nmin2 (g/L) | 0.022 ± 0.0018 | 0.035 ± 0.0159 |
| KiLA (g/L) | 0.029 ± 0.0043 | 0.055 ± 0.0064 |
| KiAA (g/L) | NS | NS |
| KiEtOH (g/L) | NS | NS |
| KiB (g/L) | NS | NS |
| RX2 | 0.9977 | 0.9980 |
| RPDMX | 2.5779 | 3.8516 |
| αLA (dimensionless) | 1.371 ± 0.2090 | 0.075 ± 0.0027 |
| βLA (h−1) | 0.013 ± 0.0092 | 0.040 ± 0.0014 |
| RLA2 | 0.9953 | 0.9978 |
| RPDMLA | 3.049 | 8.661 |
Statistically significant coefficients (P < .05) are expressed as means ± standard errors, NS: no significant (P > .05).