Table 1 Final concentrations, global yields and maximal specific rates obtained during aerobic fed-batch cultivations
Biomass | Ethanol | Glycerol | Acetate | Succinate | Pyruvate | |||
|---|---|---|---|---|---|---|---|---|
Final concentration | FB G C G | g L -1 | 13.2 ± 0.3 | 126.8 ± 0.6 | 4.96 ± 0.02 | 5.28 ± 0.04 | 0.53 ± 0.01 | 0.36 ± 0.01 |
FB GO C GO | g L -1 | 22.9 ± 0.5 | 116.2 ± 1.1 | 4.21 ± 0.05 | 5.1 ± 0.1 | 0.71 ± 0.03 | 0.37 ± 0.06 | |
Difference | % | 73 | -8 | -15 | 3 | 34 | 3 | |
Yield | FB G C G | g g -1 | 0.174 ± 0.005 | 0.432 ± 0.008 | 0.0142 ± 0.0012 | 0.0158 ± 0.0006 | 0.0027 ± 0.0006 | 0.0013 ± 0.0003 |
FB GO C GO | g g -1 | 0.234 ± 0.012 | 0.40 ± 0.01 | 0.015 ± 0.002 | 0.0171 ± 0.0004 | 0.0045 ± 0.0002 | 0.0013 ± 0.0002 | |
Difference | % | 35 | -7 | 6 | 8 | 67 | 0 | |
Maximal specific rate | FB G C G | g g -1 L -1 | 0.35 ± 0.01 | 1.31 ± 0.05 | 0.074 ± 0.008 | 0.034 ± 0.004 | 0.007 ± 0.002 | 0.013 ± 0.004 |
FB GO C GO | g g -1 L -1 | 0.38 ± 0.03 | 0.43 ± 0.03 | 0.045 ± 0.008 | 0.047 ± 0.002 | 0.015 ± 0.003 | 0.017 ± 0.004 | |
Difference | % | 8 | -67 | -39 | 38 | 114 | 30 | |