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Effect of varying concentrations of urea (as nitrogen source) on ethanol production by S. cerevisiae F-514 using sugarcane molasses.
| Urea kg/65 m3 | Initial pH | EOH% v/v | RS% | FE% | Final pH | Viable yeast cells ×108 | Yeast yield (g/L) |
|---|---|---|---|---|---|---|---|
| 10 | 4.6 | 7.8 | 3.11 | 70.1 | 4.9 | 2.55 | 10.4 |
| 15 | 4.6 | 8.1 | 2.85 | 72.8 | 5.0 | 2.75 | 10.8 |
| 20 | 4.7 | 8.3 | 2.60 | 74.6 | 5.1 | 2.90 | 11.4 |
| 25 | 4.7 | 8.4 | 2.46 | 75.5 | 5.2 | 2.90 | 11.4 |
| 30 | 4.8 | 8.2 | 2.66 | 73.7 | 5.4 | 2.85 | 11.2 |
