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

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

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)
WT^a	0.523 ± 0.054	0.029 ± 0.010	0.009 ± 0.001	0.022 ± 0.001
cat8Δ^b	0.780 ± 0.083	0.034 ± 0.002	0.012 ± 0.001	0.026 ± 0.001
BEP^c	9.620 ± 0.102	0.300 ± 0.011	0.082 ± 0.002	0.169 ± 0.007
BEP cat8Δ^c	12.51 ± 0.134	0.340 ± 0.015	0.091 ± 0.003	0.205 ± 0.009

^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
^b 48 h of fermentation
^c 72 h of fermentation

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