METHODS FOR REGULATING NITROGEN METABOLISM DURING THE PRODUCTION OF ETHANOL FROM CORN BY METABOLICALLY ENGINEERED YEAST STRAINS
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United States of America
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Oct 31, 2024
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Feb 15, 2024
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Feb 15, 2024
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Abstract
The present invention provides for a mechanism to reduce glycerol production and increase nitrogen utilization and ethanol production of recombinant microorganisms. One aspect of this invention relates to strains of S. cerevisiae with reduced glycerol productivity that get a kinetic benefit from higher nitrogen concentration without sacrificing ethanol yield. A second aspect of the invention relates to—metabolic modifications resulting in altered transport and/or intracellular metabolism of nitrogen sources present in corn mash.
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