Table 2 Sugar consumption and product formation profiles in the Hungate tube experiment
Parameters of sugar consumption, product formation, and growth during 15 h of cultivation | ||||
|---|---|---|---|---|
Strains | Max. sugar consumption rate (g/L/h) | Rate of production (g/L/h) | ||
Glucose (Time interval) | Xylose (Time interval) | Cells | Ethanol | |
E. coli B | 0.24 ± 0.01 (3–6 h) | No consumption | 0.06 ± 0.00 | 0.08 ± 0.00 |
E. coli B ΔptsG | 0.02 ± 0.00 (3–15 h) | 0.21 ± 0.02 (3–6 h) | 0.07 ± 0.00 | 0.05 ± 0.00 |
SSK42 | 0.42 ± 0.01 (3–6 h) | 0.44 ± 0.03 (6–9 h) | 0.12 ± 0.00 | 0.56 ± 0.00 |
SCD00 | 0.30 ± 0.02 (6–9 h) | 0.27 ± 0.03 (9–12 h) | 0.05 ± 0.01 | 0.19 ± 0.02 |
SCD78 | 0.22 ± 0.00 (6–9 h) | 0.17 ± 0.01 (3–6 h) | 0.06 ± 0.01 | 0.24 ± 0.00 |