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Table 4 Summaries of SSCF performance of engineered yeast consortium

From: An accessory enzymatic system of cellulase for simultaneous saccharification and co-fermentation

Engineered
yeast consortium
Maximum ethanol concentration** (g/l) Theoretical ethanol
yielda (%)
Substrate consumption rate (g/l/h)d Cellulose conversion rateb (%) Hemicellulose conversion ratec (%)
WA1g/ScafI + WA1g/XA + WA1g/Xn 12.88 ± 0.64 84.87 ± 0.26 0.31 ± 0.01 91.21 ± 0.89 55.25 ± 0.37
WA1g/NC + WA1g/XA + WA1g/Xn 12.48 ± 0.74 86.04 ± 0.34 0.30 ± 0.02 90.14 ± 0.71 49.37 ± 0.44
WA1g/NC 11.47 ± 0.70 86.92 ± 0.32 0.27 ± 0.01 86.41 ± 0.59 -
  1. a\({\text{Ethanol}}\,{\text{yield}}\,\left( \% \right) = \frac{{{\text{produced}}\,{\text{ethanol}}\,\left( {\text{g}} \right)}}{{{\text{consumed}}\,{\text{glucose}}\,\left( {\text{g}} \right) \times 0.51 + {\text{consumed}}\,{\text{xylose}}\left( {\text{g}} \right) \times 0.46}} \times 100\%\)
  2. b\({\text{Cellulose}}\,{\text{conversation}}\,{\text{yield}}\left( \% \right) = \frac{{{\text{Cellulose}}_{{\text{s}}} \left( {\text{g}} \right) - {\text{Cellulose}}_{{\text{R}}} \left( {\text{g}} \right)}}{{{\text{Cellulose}}_{{\text{s}}} \left( {\text{g}} \right)}} \times 100\% \,\left( {{\text{Cellulose}}_{{\text{s}}} {\text{:cellulose}}\,{\text{from}}\,{\text{total}}\,{\text{substrate;}}\,{\text{Cellulose}}_{{\text{R}}} {:}\,{\text{cellulose}}\,{\text{from}}\,{\text{fermentation}}\,{\text{residues}}} \right)\)
  3. c\({\text{Hemicellulose}}\,{\text{conversation}}\,{\text{yield}}\left( \% \right) = \frac{{{\text{Hemicellulose}}_{{\text{s}}} \left( {\text{g}} \right) - {\text{Hemicellulose}}_{{\text{R}}} \left( {\text{g}} \right)}}{{{\text{Hemicellulose}}_{{\text{s}}} \left( {\text{g}} \right)}} \times 100\% \,\left( {{\text{Hemicellulose}}_{{\text{s}}} :{\text{hemicellulose}}\,{\text{from}}\,{\text{total}}\,{\text{substrate}};\,{\text{Hemicellulose}}_{{\text{R}}} :{\text{hemicellulose}}\,{\text{from}}\,{\text{fermentation}}\,{\text{residues}}} \right)\)
  4. d\({\text{Substrate}}\,{\text{consumption}}\,{\text{rate}}\,\left( {\text{g/l/h}} \right) = \frac{{{\text{Consumed}}\,{\text{cellulose}} \times 1.1\,\left( {\text{g/l}} \right) - {\text{Consumed}}\,{\text{hemicellulose}} \times 1.136\left( {\text{g/l}} \right)}}{{96\left( {\text{h}} \right)}}\)
  5. **Indicates statistically significant differences between experimental group and control group (T test, p < 0.01)