Table 1 Physiological parameters calculated for control and strain xfpk(BB) in batch and chemostat mode
Strain | Batch | Chemostat | ||
|---|---|---|---|---|
Control | xfpk(BB) | Control | xfpk(BB) | |
µ(max) (h−1) | 0.353 ± 0.008 | 0.266 ± 0.006 | 0.104 ± 0.002 | 0.103 ± 0.003 |
Y(x/s) (gCDW/gGlucose) | 0.135 ± 0.00 | 0.123 ± 0.00 | 0.479 ± 0.01 | 0.409 ± 0.01 |
q(Glucose) (mmol gCDW−1 h−1) | − 14.42 ± 0.36 | − 12.19 ± 0.39 | − 1.18 ± 0.06 | − 1.36 ± 0.03 |
q(EtOH) (mmol gCDW−1 h−1) | 21.46 ± 0.75 | 17.26 ± 0.52 | – | – |
q(Acetate) (mmol gCDW−1 h−1) | 0.61 ± 0.04 | 1.38 ± 0.03 | – | – |
q(Glycerol) (mmol gCDW−1 h−1) | 1.13 ± 0.03 | 0.62 ± 0.04 | – | – |
q(Pyruvate) (mmol gCDW−1 h−1) | 0.13 ± 0.01 | 0.15 ± 0.00 | – | – |
q(Succinate) (mmol gCDW−1 h−1) | 0.02 ± 0.0 | 0.01 ± 0.0 | – | – |
q(CO2) (mmol gCDW−1 h−1) | 30.01 ± 0.32 | 28.16 ± 0.97 | 2.91 ± 0.19 | 3.34 ± 0.09 |
q(Biomass) (mmol gCDW−1 h−1) | 14.37 ± 0.31 | 10.81 ± 0.25 | 4.13 ± 0.31 | 4.07 ± 0.25 |
q(O2) (mmol gCDW−1 h−1) | − 5.49 ± 0.53 | − 7.63 ± 0.76 | − 2.61 ± 0.20 | − 3.35 ± 0.12 |
Carbon balance | 107% ± 2% | 107% ± 2% | 99% ± 3% | 92% ± 1% |