Kansai Paint Company, Ltd.

Toray Industries, Inc.

Tottori University

Bio-polymer Research Co., Ltd.

Amano Pharmaceuticals Co., Ltd.

National University Corporation Tottori University

Hideshi Yanase

Kenji Okamoto

Takahide Takadera

Atsuko Sugiura

Katsushige Yamada

Takayasu Tsuchida

Kenji Sawai

Naoto Tonouchi

Kenji Kawamura

Takahisa Hayashi

Teruhiko Beppu

Fumihiro Yoshinaga

Kyohei Isobe

Sueharu Horinouchi

Tomonari Ogawa

Kinya Kariya

Shigeki Kimura

A method of producing 2,3-butanediol includes the steps of: culturing a microorganism belonging to the genusin a fermentation feedstock containing a carbon source (Step A); and purifying 2,3-butanediol from culture liquid obtained in this step (Step B). In this method, the carbon source contains pentose, and the microorganism belonging to the genushas a capacity to metabolize pentose.

Method of producing 2,3-butanediol

The object is to develop a bacterium capable of fermenting glucose, mannose and xylose simultaneously, which can ferment a saccharified solution of a cellulose-type or lignocellulose-type biomass resource to produce ethanol, and to construct an energy-saving high-efficiency bioethanol conversion process. Thus, disclosed isbacterium which is prepared by integrating a gene encoding a phosphomannose isomerase derived frominto a levansucrase gene located on the chromosome by the double cross-over by means of a homologous recombsination method, and then introducing recombinant DNA prepared by binding a DNA fragment containing genes encoding a xylose isomerase, a xylulokinase, a transaldolase and a transketolase, respectively, all derived fromto a vector. Also disclosed is a method for producing ethanol by continuously fermenting a saccharified solution of a cellulose-type biomass resource in a system on which thebacterium is immobilized.

Bacterium capable of fermenting glucose, mannose and xylose simultaneously, and method for production of bioethanol using the bacterium

This invention provides transformed microorganisms which can produce ethanol from pentose, by introducing pentose metabolizing enzymes into microorganisms belonging to genuswhich cannot utilize pentose.

Pentose-fermentative transformed zymobacter microorganisms

This invention provides transformed microorganisms which can produce ethanol from cellooligosaccharide, by introducing &#x3b2;-glucosidase gene by recombinant DNA method, into microorganisms belonging to genuswhich cannot utilize cellooligosaccharide.

[object Object]

Oligosaccharides having physiological activities are synthesized in vivo in order to, for example, improve intestinal bacterial flora. An enzyme composition comprising an enzyme capable of forming an oligosaccharide having a physiological activity in the living body and a method for forming an oligosaccharide having a physiological activity in the living body are provided.

Enzyme composition and use thereof

Cellulose-producing microorganism transformed with a gene for an enzyme

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Tottori, Japan

Hideshi Yanase