The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 10, 2018
Filed:
Jan. 03, 2017
Mitsui Chemicals, Inc., Tokyo, JP;
Meiji Seika Pharma Co., Ltd., Tokyo, JP;
Hisaaki Yanai, Mobara, JP;
Hiroki Tamai, Ichihara, JP;
Masami Osabe, Chiba, JP;
Fumikazu Yokoyama, Yokohama, JP;
Kaoru Okakura, Odawara, JP;
Atsushi Inoue, Odawara, JP;
MITSUI CHEMICALS, INC., Tokyo, JP;
MEIJI SEIKA PHARMA CO., LTD., Tokyo, JP;
Abstract
What is aimed at is provision of an inexpensive and efficient saccharification method for lignocellulose using a thermostable xylanase and provision of a mutant xylanase that has a substitute amino acid residue, and that exhibits stable activity even under severe conditions in which enzymes easily inactivate, and that provides an initial rate of reaction not significantly reduced as compared to a wild-type xylanase corresponding to the mutant xylanase. Provided is a method of producing a saccharified product of lignocellulose, including contacting a lignocellulosic raw material with a thermostable xylanase, and a mutant xylanase that provides an initial rate of reaction that is at least 70% of that provided by a wild-type xylanase corresponding thereto, that has a xylanase activity after heat treatment at 50° C. for 24 hours that is at least 50% of its xylanase activity before the heat treatment, and that has a substitute amino acid residue.