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Microorganisms that co-consume glucose with non-glucose carbohydrates and methods of use

Patent ·
OSTI ID:1823869
Microorganisms that co-consume glucose with non-glucose carbohydrates, such as xylose, and methods of using same. The microorganisms comprise modifications that reduce or ablate the activity of a phosphoenolpyruvate (PEP):carbohydrate phosphotransferase system (PTS) protein or modifications that reduce or ablate the activity of a phosphoglucose isomerase and a GntR. The PTS protein may be selected from an enzyme I (EI), an HPr, an FPr, and an enzyme IIGlc (EIIGlc). Additional modifications include reduction or ablation of the activity of a pyruvate formate lyase, a lactate dehydrogenase, and a fumarate reductase and inclusion of recombinant pyruvate decarboxylase and alcohol dehydrogenase genes. The microorganisms are particularly suited to co-consuming glucose and xylose in media containing these substrates and producing ethanol therefrom.
Research Organization:
Univ. of Wisconsin, Madison, WI (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC02-07ER64494
Assignee:
Wisconsin Alumni Research Foundation (Madison, WI)
Patent Number(s):
10,982,234
Application Number:
16/379,433
OSTI ID:
1823869
Country of Publication:
United States
Language:
English

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