Table 1.
Summary of low-biomass Clostridium autoethanogenum fermentations.
| Gas | y | F | N | BR | D | BC | Ace | EtOH | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
| (Ar to 100%) | mL /min | rpm | # | day−1 | gDCW /L | ± | g/L | ± | g/L | ± | |
| COa | 60% CO | 50 | 510 | 4 | 1 | 0.47 | 0.02 | 2.12 | 0.18 | 0.63 | 0.05 |
| Syngasa | 50 % CO, 20% CO2, 20% H2 | 50 | 500 | 2 | 1 | 0.48 | 0.04 | 4.35 | 0.12 | 0.61 | 0.06 |
| CO/H2a | 15% CO, 45% H2 | 50 | 650 | 4 | 1 | 0.46 | 0.04 | 0.69 | 0.07 | 4.46 | 0.41 |
| CO/CO2/H2 | 2% CO, 23% CO2, 65% H2 | 30 | 1200 | 2 | 1 | 0.34 | 0.02 | 5.03 | 0.34 | 4.79 | 0.43 |
| CO2/H2 | 23% CO2, 67% H2 | 32 | 500 | 3 | 0.5 | 0.18 | 0.02 | 2.51 | 0.42 | 2.36 | 0.25 |
| CO/CO2/H2 | 2% CO, 23% CO2, 65% H2 | 30 | 800 | 2 | 0.5 | 0.54 | 0.01 | 5.97 | 0.98 | 9.69 | 0.39 |
a
Data from Valgepea et al. (2018).
y, gas compositions; F, gas flowrate; N, stirrer speed; BR, biological replicates; D, dilution rate; BC, biomass concentration; Ace, acetate concentration; EtOH, ethanol concentration; ±, plus/minus standard deviation.