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US 9,540,663 B2Granted
Xylose-fermenting microorganism
AssigneeSuntory Holdings Limited
InventorHaruyo Hatanaka
Life of this patent
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Abstract
The object of the present invention is to provide a microorganism capable of maintaining its xylose fermentation ability over a long period of time. The present invention also provides a microorganism deficient in the function of expressing NAD kinase gene and/or FPS1 gene, a method for preparing the above microorganism and a method for producing ethanol using the above microorganism.
Claims9
A yeast deficient in the function of expressing an NAD kinase gene, which is transformed with at least one of a xylose reductase gene, a xylitol dehydrogenase gene, and a xylulose kinase gene.
Dependencies are inferred from the claim text.