Table 3.
Growth characteristics of strain A12 on different sugars
| Substrate | Structure | Mean μmax (h−1) ± SD | Maximum rate sugar of consumption (mmol C/gX/h) | Mean concn (mM) ± SD of fermentation end products at 24 h |
Mean % carbon routed through the mixed acid pathway at 24 h (%) ± SDa | Estimated maintenance energy coefficientb (mmol C/gX/h) | |||
|---|---|---|---|---|---|---|---|---|---|
| Lactate | Formate | Acetate | Ethanol | ||||||
| Glucose | C6H12O6 | 0.53 ± 0.01 | 128.4 ± 32.1 | 79.9 ± 1.9 | 7.8 ± 1.3 | 4.3 ± 0.9 | 8.3 ± 0.7 | 7.3 ± 0.1 | 24.9 |
| Fructose | C6H12O6 | 0.17 ± 0.00 | 44.6 ± 0.2 | 86.6 ± 0.8 | 6.3 ± 0.6 | 3.9 ± 0.1 | 7.1 ± 0.2 | 6.0 ± 0.0 | 37.0 |
| Galactose | C6H12O6 | 0.18 ± 0.00 | 34.7 ± 2.7 | 59.2 ± 5.7 | 15.4 ± 0.8 | 12.4 ± 0.6 | 14.5 ± 2.1 | 18.5 ± 2.2 | 32.0 |
| Arabinose | C5H10O5 | 0.28 ± 0.01 | 73.6 ± 0.3 | 52.0 ± 0.6 | 10.6 ± 0.9 | 36.7 ± 0.6 | 15.3 ± 1.2 | 33.31 ± 0.5 | 19.4 |
| Raffinose | C18H32O16 | 0.46 ± 0.01 | 163.6 ± 27.9 | 52.2 ± 2.7 | 10.4 ± 4.0 | 7.6 ± 2.0 | 12.4 ± 3.0 | 16.1 ± 0.0 | 5.7 |
a
Calculated according to the following formula: 3([acetate] + [ethanol])/{6[lactate] + 3([acetate] + [ethanol])}.
b
Determined as described in Materials and Methods.