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Table 4 Main parameters of xylose fermentation at 45 °C by the O. polymorpha strains tested

From: Transcriptional activator Cat8 is involved in regulation of xylose alcoholic fermentation in the thermotolerant yeast Ogataea (Hansenula) polymorpha

Strain Ethanol (g/L) Ethanol yield (g/g consumed xylose) Rate of ethanol synthesis (g/g biomass/h) Productivity of ethanol synthesis (g/L/h)
WTa 0.523 ± 0.054 0.029 ± 0.010 0.009 ± 0.001 0.022 ± 0.001
cat8Δb 0.780 ± 0.083 0.034 ± 0.002 0.012 ± 0.001 0.026 ± 0.001
BEPc 9.620 ± 0.102 0.300 ± 0.011 0.082 ± 0.002 0.169 ± 0.007
BEP cat8Δc 12.51 ± 0.134 0.340 ± 0.015 0.091 ± 0.003 0.205 ± 0.009
  1. a Data of ethanol yield and ethanol (g/L) are represented on YNB medium supplemented with 9% of xylose on the first day (24 h) of fermentation
  2. b 48 h of fermentation
  3. c 72 h of fermentation