Table 3 Effect of aspartate on ABE fermentation performance of C. acetobutylicum ATCC 824
Aspartate (g/L) | Acetone (g/L) | Ethanol (g/L) | Butanol (g/L) | Acetic acid (g/L) | Butyric acid (g/L) | Butanol yield (g/g) | Max OD600 | Glucose consumption (g/L) |
|---|---|---|---|---|---|---|---|---|
0 | 5.90 ± 0.14 | 0.80 ± 0.13 | 11.18 ± 0.21 | 1.54 ± 0.04 | 1.0 ± 0.34 | 0.172 ± 0.002 | 6.9 ± 0.43 | 64.86 ± 0.26 |
1.0 | 5.61 ± 0.55 | 1.85 ± 0.10 | 12.55 ± 0.21 | 1.31 ± 0.04 | 1.21 ± 0.24 | 0.180 ± 0.004 | 7.3 ± 0.32 | 69.75 ± 0.49 |
1.5 | 6.18 ± 0.25 | 2.06 ± 0.33 | 13.24 ± 0.15 | 1.21 ± 0.13 | 0.51 ± 0.05 | 0.187 ± 0.004 | 7.7 ± 0.21 | 70.79 ± 0.52 |
2.0 | 6.26 ± 0.20 | 1.94 ± 0.12 | 13.50 ± 0.04 | 1.07 ± 0.01 | 0.58 ± 0.01 | 0.185 ± 0.004 | 8.1 ± 0.24 | 72.95 ± 1.27 |
2.5 | 6.08 ± 0.17 | 1.53 ± 0.08 | 13.28 ± 0.10 | 1.40 ± 0.06 | 0.91 ± 0.06 | 0.188 ± 0.002 | 7.9 ± 0.14 | 70.54 ± 0.33 |