L-Arabinose Fermenting Yeast

Min Zhang (Inventor), Eric Knoshaug (Inventor), Mary Franden (Inventor), Pirkko Suominen (Inventor)

Research output: Patent


An L-arabinose utilizing yeast strain is provided for the production of ethanol by introducing and expressing bacterial araA, araB and araD genes. L-arabinose transporters are also introduced into the yeast to enhance the uptake of arabinose. The yeast carries additional genomic mutations enabling it to consume L-arabinose, even as the only carbon source, and to produce ethanol. A yeast strainengineered to metabolize arabinose through a novel pathway is also disclosed. Methods of producing ethanol include utilizing these modified yeast strains.
Original languageAmerican English
Patent number8,372,626 B2
Filing date12/02/13
StatePublished - 2013

Bibliographical note

Assignee: Alliance for Sustainable Energy, LLC (Golden, CO)

NREL Publication Number

  • NREL/PT-5100-62010


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