Toray Industries, Inc.

Shiomi Watanabe

Katsushige Yamada

Hiroyuki Kurihara

Kenji Sawai

Shingo Hiramatsu

Kyohei Isobe

Kazuhiko Ishikawa

Koji Kobayashi

Kyungsu Na

Yasunobu Wada

Yuji Kado

A method produces a chemical product by continuous fermentation including filtering a culture liquid of a microorganism(s) through a separation membrane, retaining unfiltered liquid in, or refluxing unfiltered liquid to, the culture liquid, adding a fermentation feedstock to the culture liquid, and recovering a product in the filtrate, wherein the microorganism(s) is/are a microorganism(s) that undergo(es) catabolite repression, and the fermentation feedstock comprises hexose and pentose.

Method of producing chemical substance

A method for producing a mutant glucosidase includes introducing DNA encoding a secretion signal sequence and DNA encoding Asn-X-Ser or Asn-X-Thr into DNA encoding a glucosidase derived from a thermophile, and introducing the resulting DNA into a eukaryotic microorganism and expressing it as a secretory protein. An enzyme composition contains the mutant glucosidase.

Method for producing glucosidase, enzyme composition, and method for hydrolyzing biomass

Growing community of inventors

Kamakura, Japan

Shiomi Watanabe