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Table 5 Continuous fermentation

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

Dilution rate
(h-1)
Strain Specific consumption and production rates (g (g biomass)-1 h-1) Yields (g product (g consumed sugars)-1) Carbon balance (%)
   Glucose Xylose Ethanol Ethanol Xylitola Glycerol Biomass  
0.06 Y-PsNative -0.64 ± 0.02 -0.19 ± 0.01 0.31 ± 0.00 0.37 ± 0.02 0.30 ± 0.02 0.09 ± 0.00 0.07 ± 0.00 96 ± 2
  Y-PsK270R -0.52 ± 0.01 -0.22 ± 0.01 0.29 ± 0.01 0.39 ± 0.00 0.12 ± 0.01 0.07 ± 0.01 0.08 ± 0.00 94 ± 1
0.12 Y-PsNative -1.09 ± 0.03 -0.26 ± 0.02 0.50 ± 0.01 0.37 ± 0.02 0.24 ± 0.04 0.09 ± 0.01 0.09 ± 0.00 95 ± 3
  Y-PsK270R -1.04 ± 0.06 -0.28 ± 0.01 0.51 ± 0.03 0.39 ± 0.01 0.05 ± 0.02 0.07 ± 0.01 0.09 ± 0.00 93 ± 1
  1. Specific consumption (negative) and production (positive) rates, product yields and carbon balances in continuous fermentation of strains Y-PsNative and Y-PsK270R under anaerobic conditions at dilution rates of 0.06 h-1 and 0.12 h-1 with 10 g l-1 glucose and 10 g l-1 xylose.
  2. a (g xylitol (g consumed xylose)-1)