Table 3.
List of carbonates tested on C. beijerinckii and their corresponding effects on ABE production
| Treatment (2 g/liter) | Mean product concn (g/liter) ± SDa |
|||
|---|---|---|---|---|
| Acetone | Ethanol | Butanol | Total ABE | |
| Control | 3.01A ± 0.92 | 0.12A ± 0.08 | 11.47A ± 0.96 | 14.6A ± 1.1 |
| Na2CO3 | 3.91AB ± 0.28 | 0.16A ± 0.05 | 12.03A ± 0.38 | 16.1B ± 0.49 |
| K2CO3 | 3.4A ± 0.19 | 0.18A ± 0.03 | 12.48AB ± 0.09 | 16.06B ± 0.3 |
| (NH4)2CO3 | 4.75B ± 0.22 | 0.31B ± 0.11 | 13.43BC ± 0.26 | 18.49C ± 0.52 |
| NaHCO3 | 4.76B ± 0.38 | 0.29B ± 0.01 | 13.8C ± 0.22 | 18.85C ± 0.61 |
| NH4HCO3 | 4.58B ± 0.31 | 0.29B ± 0.09 | 13.34C ± 0.37 | 18.21C ± 0.66 |
| CaCO3 | 7.66C ± 0.81 | 0.33B ± 0.07 | 15.5D ± 0.83 | 23.49D ± 1.2 |
a
Means with same superscript letters are not significantly different.