Modified yeast consuming L-arabinose
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United States of America Patent
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Apr 8, 2014
Grant Date -
Aug 27, 2009
app pub date -
Dec 1, 2008
filing date -
May 8, 2002
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Abstract
The present invention relates to a method for producing a L-arabinose utilizing yeast strain for the production of ethanol, whereby a yeast strain is modified by introducing and expressing araA gene (L-arabinose isomerase), araB gene (L-ribulokinase D121-N) and araD gene (L-ribulose-5-P 4-epimerase) and carrying additional mutations in its genome or overexpressing a TAL1 (transaldolase) gene, enabling it to consume L-arabinose, to use it as the only carbon source, and to produce ethanol, as well as a method for producing ethanol using such a modified strain.
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