Mutant xylanase, manufacturing method and use therefor, and method for manufacturing saccharified lignocellulose
The invention provides a mutant xylanase, a manufacturing method and use thereof, and a method for manufacturing saccharified lignocellulose. The present invention addresses the following problems: providing an inexpensive, efficient lignocellulose saccharification method using a thermostable xylana...
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Main Authors | , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
13.06.2017
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Subjects | |
Online Access | Get full text |
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Summary: | The invention provides a mutant xylanase, a manufacturing method and use thereof, and a method for manufacturing saccharified lignocellulose. The present invention addresses the following problems: providing an inexpensive, efficient lignocellulose saccharification method using a thermostable xylanase; and providing a mutant xylanase that has a substituted amino-acid residue, exhibits stable activity even under harsh conditions in which enzymes are easily deactivated, and has an initial reaction rate not much less than that of the corresponding wild-type xylanase. A lignocellulose saccharification method that includes bringing a lignocellulose feedstock into contact with a thermostable xylanase; and a mutant xylanase that has a substituted amino-acid residue, has an initial reaction rate at least 70% of that of the corresponding wild-type xylanase, and, after a 24-hour heat treatment at 50 DEG C, exhibits xylanase activity at least 50% of that exhibited before said heat treatment.
本发明提供突变型木聚糖酶、其制造方法及用途、以及木质纤维 |
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Bibliography: | Application Number: CN201710161400 |