HIGHLY EFFICIENT ETHANOL-FERMENTATIVE BACTERIA

An object of the present invention is to obtain fermentative yeast having highly efficient ethanol production without introducing a foreign gene. A further object is to obtain a fermentative yeast that is resistant to proliferation inhibitors such as organic acids, which prevent the proliferation of...

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Main Authors TSUKAGOSHI, Norihiko, TSUCHIDA, Yoshiki, KURIHARA, Ikumi, AOYAGI, Akihiko
Format Patent
LanguageEnglish
French
German
Published 23.05.2018
Subjects
BEER
BIOCHEMISTRY
CHEMISTRY
COMPOSITIONS THEREOF
CULTURE MEDIA
ENZYMOLOGY
FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE
METALLURGY
MICROBIOLOGY
MICROORGANISMS OR ENZYMES
MUTATION OR GENETIC ENGINEERING
PROCESSES USING MICROORGANISMS
PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS
SPIRITS
VINEGAR
WINE
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Summary:An object of the present invention is to obtain fermentative yeast having highly efficient ethanol production without introducing a foreign gene. A further object is to obtain a fermentative yeast that is resistant to proliferation inhibitors such as organic acids, which prevent the proliferation of the fermentative yeast. Meyerozyma guilliermondii that can produce ethanol effectively from pentose and hexose was isolated by breeding. Moreover, resistance was imparted to the fermentative yeast by introducing transaldolase and alcohol dehydrogenase genes derived from Meyerozyma guilliermondii into the fermentative yeast.
Bibliography:Application Number: EP20140907540