Table 3 CBP and SSF parameters of the different xylose-consuming S. cerevisiae strains in corn cob liquors
Corn cob liquor | Potential xylose (g/L) | Strain (inoculum) | Glucosei (g/L) | Xylosei (g/L) | Xylosef (g/L) | Ethanolf (g/L) | Xylitolf (g/L) | Acetic acidi (g/L) | Acetic acidf (g/L) | Yxyol/potential xyl (g/g) | Yet/potential sugar (g/g) |
|---|---|---|---|---|---|---|---|---|---|---|---|
Liquor 29XPot (S0 = 3.67 and LSR = 8 g/g) | 24.2 | ER-X-2P (50 g/L) | 0.392 ± 0.003 | 1.80 ± 0.02 | 0.418 ± 0.016 | 6.51 ± 0.26 | 2.71 ± 0.00 | 1.13 ± 0.02 | 1.88 ± 0.02 | 0.112 ± 0.000 | 0.247 ± 0.010 |
CAT-1-X-2P (50 g/L) | 0.392 ± 0.003 | 1.80 ± 0.02 | 1.77 ± 0.01 | 3.73 ± 0.37 | 3.97 ± 0.37 | 1.13 ± 0.02 | 1.99 ± 0.60 | 0.164 ± 0.015 | 0.142 ± 0.014 | ||
CA11-X-2P (50 g/L) | 0.392 ± 0.003 | 1.80 ± 0.02 | 1.29 ± 0.17 | 4.80 ± 0.58 | 2.35 ± 0.14 | 1.13 ± 0.02 | 1.66 ± 0.09 | 0.0971 ± 0.0059 | 0.182 ± 0.022 | ||
Liquor 32XPot (S0 = 3.99 and LSR = 8 g/g) | 31.6 | ER-X-2P (50 g/L) | 0.293 ± 0.003 | 5.02 ± 0.11 | 2.11 ± 0.28 | 8.15 ± 0.54 | 4.59 ± 0.42 | 1.81 ± 0.00 | 2.17 ± 0.20 | 0.145 ± 0.013 | 0.240 ± 0.016 |
ER-X-2P (100 g/L) | 0.293 ± 0.003 | 5.02 ± 0.11 | 0.873 ± 0.019 | 11.1 ± 0.2 | 4.75 ± 0.13 | 1.81 ± 0.00 | 2.37 ± 0.01 | 0.150 ± 0.004 | 0.328 ± 0.005 | ||
Liquor 54XPot (S0 = 3.78 and LSR = 8 g/g) | 50.7 | ER-X-2P (100 g/L) | 0.487 ± 0.010 | 4.62 ± 0.02 | 14.0 ± 0.8 | 4.23 ± 0.04 | 6.19 ± 0.67 | 2.53 ± 0.01 | 3.91 ± 0.34 | 0.122 ± 0.013 | 0.0778 ± 0.0008 |
Whole slurry (liquor 54XPot with 5% solid loading) | 50.7 + 6.13 | ER-X-2P (100 g/L) | 0.487 ± 0.010 | 4.62 ± 0.02 | 14.4 ± 1.0 | 4.20 ± 0.15 | 6.41 ± 0.21 | 2.53 ± 0.01 | 3.72 ± 0.32 | 0.113 ± 0.004 | 0.0463 ± 0.0017 |
Liquor 32XPot (S0 = 3.99 and LSR = 8 g/g) plus 0.017% (v/v) hemicellulase | 31.6 | ER-2P (100 g/L) | 0.466 ± 0.151 | 5.15 ± 0.19 | 0.976 ± 0.095 | 4.65 ± 0.16 | 0.760 ± 0.022 | 1.90 ± 0.16 | 3.38 ± 0.08 | 0.0240 ± 0.0007 | 0.137 ± 0.005 |
ER-X-2P (100 g/L) | 0.466 ± 0.151 | 5.15 ± 0.19 | 6.55 ± 0.25 | 6.26 ± 0.06 | 5.40 ± 0.08 | 1.90 ± 0.16 | 3.41 ± 0.19 | 0.171 ± 0.003 | 0.184 ± 0.002 | ||
Liquor 32XPot (S0 = 3.99 and LSR = 8 g/g) plus 0.050% (v/v) hemicellulase | ER-2P (100 g/L) | 0.466 ± 0.151 | 5.15 ± 0.19 | 1.02 ± 0.00 | 6.26 ± 0.10 | 0.854 ± 0.125 | 1.90 ± 0.16 | 3.65 ± 0.22 | 0.0270 ± 0.0040 | 0.184 ± 0.003 | |
ER-X-2P (100 g/L) | 0.466 ± 0.151 | 5.15 ± 0.19 | 8.65 ± 0.02 | 6.00 ± 0.16 | 5.01 ± 0.08 | 1.90 ± 0.16 | 3.60 ± 0.24 | 0.159 ± 0.003 | 0.176 ± 0.005 |