| abstract |
The present invention relates to the field of methods for obtaining ethanol-producing yeast strains, of yeast strains thus produced, and of the industrial production of ethanol from said strains. More especially, the present invention describes, in most general terms, a method for preparing yeasts from Saccharomyces cerevisiae strains by means of the integration, into the genome of the yeast, of at least one gene encoding xylose isomerase and of at least one gene encoding xylitol dehydrogenase. The strain of the invention is of use for producing ethanol from a medium comprising at least one pentose, preferably xylose or a xylose and arabinose mixture. |