Table 1 Quantitative data for the cultivations on glucose, glycerol and a mixture of glucose and glycerol.
Glucose | Glycerol | Glycerol | Glucose + Glycerol | |
|---|---|---|---|---|
0.65 cmol L -1 | 1.5 cmol L -1 | 0.65 cmol L -1 | 0.65 cmol L -1 | |
Growth rate | ||||
μmax (h-1) | 0.24 ± 0.01 | 0.32 ± 0.01 | 0.30 ± 0.01 | 0.38 ± 0.01 |
Oxygen consumption | ||||
Yxo (mol cmol-1) | 0.42 ± 0.04 | 0.44 ± 0.03 | 0.43 ± 0.01 | 0.33 ± 0.01 |
ro (mol gDW-1 h-1) | 0.11 ± 0.01 | 0.14 ± 0.01 | 0.14 ± 0.01 | 0.13 ± 0.01 |
Glycerol uptake | ||||
qglycerol(mol L-1 h-1) | N/A | 0.020 ± 0.001 | 0.019 ± 0.001 | 0.014 ± 0.002 |
Yield coefficients | ||||
Ysx (cmol cmol-1) | 0.69 ± 0.03 | 0.64 ± 0.00 | 0.61 ± 0.01 | 0.76 ± 0.04 |
Ysc (cmol cmol-1) | 0.30 ± 0.01 | 0.17 ± 0.01 | 0.23 ± 0.00 | 0.18 ± 0.01 |
Ysm (cmol cmol-1) | N/A | 0.24 ± 0.00 | 0.17 ± 0.00 | 0.06 ± 0.01 |
Total | 0.99 ± 0.03 | 1.05 ± 0.01 | 1.01 ± 0.01 | 1.00 ± 0.04 |