Table 4 Comparison of fermentation performance of C. acetobutylicum ATCC 824 and recombinant strains
Strains | Acetone (g/L) | Ethanol (g/L) | Butanol (g/L) | Acetic acid (g/L) | Butyric acid (g/L) | Butanol yield (g/g) | Glucose consumption (g/L) |
|---|---|---|---|---|---|---|---|
ATCC 824 | 5.78 ± 0.19 | 0.44 ± 0.07 | 10.41 ± 0.06 | 3.83 ± 0.13 | 1.34 ± 0.05 | 0.167 ± 0.002 | 62.34 ± 1.21 |
824(nadA) | 6.21 ± 0.14 | 1.05 ± 0.14 | 11.42 ± 0.13 | 3.23 ± 0.14 | 1.16 ± 0.21 | 0.170 ± 0.001 | 67.18 ± 0.58 |
824(nadB) | 6.11 ± 0.09 | 0.76 ± 0.11 | 11.39 ± 0.21 | 3.36 ± 0.12 | 1.25 ± 0.15 | 0.171 ± 0.006 | 66.61 ± 1.04 |
824(nadC) | 6.15 ± 0.05 | 0.85 ± 0.05 | 11.82 ± 0.11 | 3.05 ± 0.21 | 1.11 ± 0.12 | 0.176 ± 0.001 | 67.16 ± 0.64 |
824(thiCGE) | 6.71 ± 0.16 | 1.85 ± 0.07 | 13.02 ± 0.15 | 1.80 ± 0.26 | 0.73 ± 0.11 | 0.186 ± 0.001 | 69.88 ± 0.55 |
824(thiCGE–nadC) | 6.97 ± 0.75 | 1.35 ± 0.01 | 13.96 ± 0.11 | 2.46 ± 0.08 | 0.94 ± 0.19 | 0.188 ± 0.001 | 74.23 ± 0.52 |