Patent ID: 9394554
Filing Date: 2016-07-19
CPC Classification: A21D,A23K,C11D,C12N,C12P,C12Y,C13K,Y02E,Y02P

Claim Text:
1. A method of producing a saccharified product of lignocellulose, the method comprising contacting a lignocellulosic raw material with a thermostable xylanase, the thermostable xylanase comprising the following amino acid residues substitution in the amino acid sequence of SEQ ID NO: 1: a leucine residue substituted for an asparagine residue at position 29; an arginine residue substituted for a lysine residue at position 58; an amino acid residue, other than a tyrosine residue, substituted for a tyrosine residue at position 27; and an amino acid residue, other than an asparagine residue, substituted for an asparagine residue at position 44, or the thermostable xylanase comprising 1 to 10 amino acid residues substitution in the amino acid sequence of SEQ ID NO: 1 in addition of the following amino acid residues substitutions: a leucine residue substituted for an asparagine residue at position 29, an arginine residue substituted for a lysine residue at position 58, a phenylalanine residue substituted for a tyrosine residue at position 27, and a serine residue substituted for an asparagine residue at position 44.