Table 2 Ethanol yields and concentrations of metabolites obtained after 96 h
SSF mode | WIS | Prefermentation | Xylose consumption1 % | Xylitol %2 (g L-1) | Glycerol g L-1 | Ethanol yield g g-1 | Ethanol yield % of theoretical | Ethanol g L-1 |
|---|---|---|---|---|---|---|---|---|
Batch | 7% | No | 77 | 27 (0.91) | 2.9 | 0.44 | 86 | 32.0 |
Batch | 7% | Yes | 84 | 24 (0.86) | 3.4 | 0.46 | 91 | 33.9 |
Batch | 10% | No | 16 | 27 (0.29) | 3.6 | 0.38 | 75 | 39.6 |
Batch3 | 10% | Yes | 31 | 24 (0.49) | 3.6 | 0.41 | 81 | 43.0 |
Batch3 | 10% | Yes | 42 | 23 (0.68) | 4.8 | 0.41 | 80 | 42.3 |
Fed-batch | 10% | No | 56 | 24 (0.92) | 3.9 | 0.43 | 85 | 45.0 |
Fed-batch | 10% | Yes | 77 | 22 (1.16) | 4.2 | 0.43 | 85 | 45.2 |