Table 1.
Yeasts species | Oxygen condition | Xylitol (g L−1) | Ethanol (g L−1) | Xylitol yield [Yx/s (g g−1)] | Ethanol yield [Ye/s (g g−1)] | Biomass yield [Yb/s (g g−1)] | Specific xylose consumption [(g g−1cdw h−1)] | Specific ethanol productivity [(g g−1cdw h−1)] |
---|---|---|---|---|---|---|---|---|
S. stipitis
S. passalidarum S. arborariae C. tenuis |
Aerobic | 0.41 ± 0.06 | 8.05 ± 0.91 | 0.01 ± 0.00 | 0.24 ± 0.02 | 0.16 ± 0.04 | 0.30 ± 0.09 | 0.08 ± 0.03 |
0.04 ± 0.00 | 10.06 ± 0.48 | 0.00 ± 0.00 | 0.28 ± 0.02 | 0.33 ± 0.02 | 0.13 ± 0.02 | 0.04 ± 0.01 | ||
0.27 ± 0.08 | 8.65 ± 1.16 | 0.01 ± 0.00 | 0.25 ± 0.02 | 0.31 ± 0.05 | 0.13 ± 0.02 | 0.03 ± 0.01 | ||
8.03 ± 1.48 | 0.00 ± 0.00 | 0.30 ± 0.06 | 0.00 ± 0.00 | 0.43 ± 0.06 | 0.02 ± 0.00 | 0.00 ± 0.00 | ||
S. stipitis
S. passalidarum S. arborariae C. tenuis |
Oxygen- limited |
0.37 ± 0.01 | 16.48 ± 0.83 | 0.01 ± 0.00 | 0.45 ± 0.04 | 0.09 ± 0.02 | 0.29 ± 0.09 | 0.10 ± 0.02 |
0.05 ± 0.02 | 16.36 ± 1.40 | 0.00 ± 0.01 | 0.44 ± 0.04 | 0.13 ± 0.04 | 0.22 ± 0.10 | 0.10 ± 0.05 | ||
1.82 ± 0.66 | 11.47 ± 2.37 | 0.04 ± 0.02 | 0.31 ± 0.02 | 0.15 ± 0.01 | 0.09 ± 0.01 | 0.03 ± 0.01 | ||
15.43 ± 1.90 | 0.00 ± 0.00 | 0.62 ± 0.04 | 0.00 ± 0.00 | 0.14 ± 0.01 | 0.04 ± 0.01 | 0.00 ± 0.00 |
The fermentative capacities were measurement under aerobic and oxygen-limited conditions. The values are calculated considering the exponential growth phase