Cell suitable for fermentation of a mixed sugar composition
AssigneeDsm IP Assets B.V.
InventorsPaul Klaassen, Bianca Elisabeth Maria Gielesen, Gijsberdina Pieternella Van Suylekom, Wilbert Herman Marie Heijne
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Abstract
The present invention relates to a cell suitable for production of one or more fermentation product from a sugar composition comprising glucose, galactose, arabinose and xylose, wherein the cell comprises two to fifteen copies of one or more xylose isomerase gene or two to fifteen copies of one or more xylose reductase and xylitol dehydrogenase, and two to ten copies of araA, araB and araD, genes, wherein these genes are integrated into the cell genome.
Claims16
A transformed Saccharomyces cerevisiae cell suitable for producing ethanol from a sugar composition comprising glucose, galactose, xylose, arabinose and mannose wherein said cell comprises about eight copies of at least one xylose isomerase gene, and from two to four copies of L-arabinose isomerase (araA), L-ribulokinase (araB), and L-ribulose-5-phosphate 4-epimerase (araD) genes, wherein said genes are heteroloqous and are integrated into the cell genome.
Dependencies are inferred from the claim text.