Production and use of yeast having increased cellulose hydrolysis ability
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United States of America Patent
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Nov 5, 2013
Grant Date -
Jul 28, 2011
app pub date -
Sep 16, 2009
filing date -
Sep 17, 2008
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Abstract
The present invention provides a method for producing an yeast having an increased cellulose hydrolysis ability. The method includes the step of introducing increased integration copy numbers of both a gene for an enzyme capable of hydrolyzing crystalline cellulose and a gene for an enzyme capable of hydrolyzing noncrystalline cellulose into a noncellulolytic yeast to give a transformed yeast. The yeast having an increased cellulose hydrolysis ability can be suitably used for ethanol production from cellulose-based materials.
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