Non-recombinant saccharomyces strains that grow on xylose

Non-recombinant saccharomyces strains that grow on xylose

  • CN 1,977,042 B
  • Filed: 06/08/2005
  • Issued: 03/19/2014
  • Est. Priority Date: 06/08/2004
  • Status: Active Grant
First Claim
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1. produce a method for Saccharomyces cerevisiae cell colony, described cell mass physical efficiency is utilized wood sugar growth velocity growth with every 48 hour at least one generation as growth sole carbon source, and the method comprises the following steps:

  • (a) provide the non-recombinant yeast cell of yeast belong genetic diversity colony;

    (b) culturing yeast cell under the condition that allows to use non-recombination method to carry out DNA combination between yeast cell;

    (c) by containing on wood sugar substratum or middle culturing yeast cell screen or select yeast cell, the non-recombinant yeast cell of the yeast cell formation genetic diversity colony of wherein screen or select;

    With(d) with institute'"'"'s cell repeating step (b) of screen or selecting and (c), until yeast cell colony has obtained the ability of utilizing wood sugar to grow with the growth velocity in every 48 hour at least one generation as growth sole carbon source.

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