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Table 4 Batch fermentation

From: Xylose reductase from Pichia stipitis with altered coenzyme preference improves ethanolic xylose fermentation by recombinant Saccharomyces cerevisiae

Strain

Xylose

consumed

(g l-1)

Ethanol

produced

(g l-1)

Yields (g product (g consumed sugars)-1)

   

Ethanol

Xylitola

Glycerol

Biomass

Acetate

Y-PsNative

30.4 ± 2.3

16.7 ± 0.4

0.33 ± 0.02

0.26 ± 0.03

0.095 ± 0.001

0.040 ± 0.001

0.011 ± 0.002

Y-PsK270M

16.8 ± 0.2

14.1 ± 0.3

0.38 ± 0.01

0.09 ± 0.01

0.067 ± 0.000

0.054 ± 0.001

0.013 ± 0.001

Y-PsK270R

46.1 ± 1.3

25.3 ± 0.5

0.38 ± 0.01

0.09 ± 0.01

0.079 ± 0.001

0.050 ± 0.001

0.009 ± 0.000

  1. Xylose consumption, ethanol production and product yields after 117 hours (see Figure 1) anaerobic batch fermentation of 20 g l-1 glucose and 50 g l-1 xylose by strains Y-PsNative, Y-PsK270M and Y-PsK270R.
  2. a (g xylitol (g consumed xylose)-1)