Table 1 Physiological parameters during fed-batch fermentation with S. cerevisiae Ethanol Red
From: A microbubble-sparged yeast propagation–fermentation process for bioethanol production
Propagation gassing type | Fermentation gassing type | Maximum cell number (106 cells mL−1) | Dry cell biomass (g L−1) | Ethanol (g L−1) | Viability (%) |
|---|---|---|---|---|---|
21% O2 RB | Ungassed | 492 ± 141 | 12.9 ± 3.4 | 100 ± 5 | 91 ± 1% |
21% O2 MB | Ungassed | 498 ± 135 | 12.2 ± 0.7 | 96 ± 2 | 88 ± 5% |
21% O2 MB | 1% O2 RB | 641 ± 77 | 14.4 ± 2.3 | 96 ± 3 | 78 ± 4 |
21% O2 MB | 1% O2 MB | 721 ± 85 | 14.8 ± 1.3 | 89 ± 3 | 75 ± 7 |