Zymomonas with improved arabinose utilization

Details Zymomonas with improved arabinose utilization Zymomonas with improved arabinose utilization

C - Chemistry, Metallurgy

12

N

C12N 1/21 (2006.01) C12N 15/00 (2006.01) C12P 7/06 (2006.01) C12N 15/31 (2006.01) C12N 15/63 (2006.01)

Patent

CA 2761968

Several strains of arabinose-utilizing Zymomonas were engineered to express an arabinose-proton symporter which was found to provide the strains with improved ability to utilize arabinose. These strains have improved ethanol production in media containing arabinose, either as the sole carbon source or as one sugar in a mixture of sugars.

Selon l'invention, plusieurs souches de Zymomonas utilisant de l'arabinose ont été modifiées par génie génétique pour exprimer un symporteur arabinose-proton qui a été trouvé conférer aux souches une capacité améliorée pour utiliser l'arabinose. Ces souches ont une production d'éthanol améliorée dans des milieux contenant de l'arabinose, soit en tant que source de carbone unique, soit en tant que sucre dans un mélange de sucres.

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