Construction of Xylitol-Producing Recombinant Saccharomyces cerevisiae

1 Construction of Xylitol-Producing Recombinant Saccharomyces cerevisiae 

FIGURE 18.6 Batch fermentation profiles of Saccharomyces cerevisiae EH13.15 pY2XR at 30°C (Lee et al., 2000). , dry cell mass , glucose A, xylose O, xylitol A, ethanol. 

Wild-type strains of S. cerevisiae have many nonspecific aldose reductases and are able to produce a small amount of xylitol without XR expression. Among several aldose reductases, the GRE3 protein was expressed in recombinant S. cerevisiae, and 

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