Table 1 Fermentation performance of time to consume all glucose (Time), growth rate, as well as ethanol titer, yield, and productivity of the wild-type Z. mobilis ZM4 and mutant strains 3.5M and 3.6M in RMG5 at pH 3.8 and pH 6.2
Condition and Strain | Glucose used (g/L) | Time (h) | Growth rate (h−1) | Titer (g/L) | Yield (%) | Productivity (g/L/h) |
|---|---|---|---|---|---|---|
pH 3.8 | ||||||
 ZM4 | 44.95 ± 0.12 | 22 | 0.14 ± 0.01 | 21.74 ± 0.43 | 94.55 ± 1.89 | 0.99 ± 0.02 |
 3.5M | 44.91 ± 0.01 | 18 | 0.23 ± 0.01 | 21.62 ± 0.14 | 94.13 ± 0.64 | 1.20 ± 0.01 |
 3.6M | 44.98 ± 0.00 | 13 | 0.35 ± 0.01 | 21.22 ± 0.28 | 92.24 ± 1.22 | 1.63 ± 0.02 |
pH 6.2 | ||||||
 ZM4 | 44.91 ± 0.11 | 10 | 0.49 ± 0.007 | 20.21 ± 1.33 | 87.99 ± 5.88 | 2.02 ± 0.13 |
 3.5M | 44.97 ± 0.00 | 12 | 0.39 ± 0.005 | 20.05 ± 0.82 | 87.19 ± 3.56 | 1.67 ± 0.07 |
 3.6M | 44.95 ± 0.00 | 10 | 0.49 ± 0.01 | 20.24 ± 0.36 | 90.00 ± 1.20 | 2.02 ± 0.04 |