SSCF | HYBRID | SSCF | HYBRID | Hydrolysis | |
---|---|---|---|---|---|
pH 5.0 | pH 5.0 | pH 5.5 | pH 5.5 | 34°C | |
Hydrolysis performance | |||||
Degree of glucan hydrolysis (%) | 49.4 ± 0.8 | 54.2 ± 0.5 | 50.9 ± 3.8 | 54.0 ± 1.1 | 45.2 ± 0.3 |
Degree of xylan hydrolysis (%) | 35.9 ± 2.7 | 43.0 ± 1.8 | 38.1 ± 5.3 | 43.3 ± 0.5 | 31.1 ± 0.6 |
Fermentation performance | |||||
Ethanol yield (g/g consumed sugars) | 0.42 ± 0.01A | 0.43 ± 0.00 A | 0.40 ± 0.02 A | 0.39 ± 0.02 A | - |
Ethanol yield (% of theoretical) | 81.7 ± 1.9 | 85.0 ± 0.1 | 79.3 ± 4.7 | 76.4 ± 3.5 | - |
Glycerol yield (g/g consumed sugars) | 0.015 ± 0.002 | 0.031 ± 0.004 | 0.028 ± 0.004 | 0.039 ± 0.003 | |
Consumed xylose [%] | 40.2 ± 3.8 | 33.7 ± 9.2 | 78.3 ± 2.0 | 55.8 ± 5.5 | - |
Xylitol production (% of consumed xylose) | 32.0 ± 0.1 | 15.9 ± 0.2 | 25.5 ± 0.2 | 19.2 ± 0.4 | - |
Technical ethanol yield [%] | 40.3 ± 0.7 A | 45.2 ± 1.3 B | 44.4 ± 0.4 B | 42.7 ± 0.8 A B | - |
Calculated carbon recovery * (excluding cell growth) | 0.93 ± 0.01 | 0.94 ± 0.00 | 0.92 ± 0.03 | 0.90 ± 0.02 | 0.96 ± 0.00 |