From: Engineering proton-coupled hexose uptake in Saccharomyces cerevisiae for improved ethanol yield
Strain | IMZ785 | IMS1215 |
---|---|---|
Relevant genotype | HXT5 | HGT1 + FSY1 |
Carbon source | Sucrose | Sucrose |
µmax (h−1) a | 0.28 ± 0.00 | 0.15 ± 0.00 |
Biomass yield (gx ghexose eq −1) | 0.088 ± 0.005 | 0.047 ± 0.000 |
Ethanol yield (mol molhexose eq−1) | 1.51 ± 0.00 | 1.76 ± 0.02 |
qs (mmol gx−1 h−1) | 6.41 ± 0.43 | 11.9 ± 0.23 |
qethanol (mmol gx−1 h−1) | 9.71 ± 0.63 | 20.9 ± 0.19 |
qglycerol (mmol gx−1 h−1) | 0.86 ± 0.08 | 0.85 ± 0.02 |
qCO2 (mmol gx−1 h−1) | 10.1 ± 0.76 | 20.2 ± 0.40 |
Residual sugar (g L−1) | 0.40 ± 0.01 (glucose) 0.56 ± 0.07 (fructose) | 0.70 ± 0.00 (glucose) 4.86 ± 0.10 (fructose) |
Carbon recovery (%) b | 95.8 ± 0.10 | 97.7 ± 0.45 |
Actual dilution rate (h−1) | 0.102 ± 0.001 | 0.102 ± 0.002 |