Laccase for processing wood

Abstract

The invention relates to laccase for processing wood, and belongs to the technical field of biological fermentation engineering. Seed thalli of bacillus methylotrophicus HS047 with the preservation number CCTCC M 2015032 are cultivated and are cultivated in a fermentation manner to obtain the laccase for processing the wood. The laccase has the advantages that endophytes completely adaptive to internal environments of plants are used as original strains, so that laccase solution capable of sufficiently realizing laccase activity in environments with pH (potential of hydrogen) values of 4.5-6.5 can be prepared, and foundations can be laid for implementing and promoting biological processing of wood materials; the laccase can be efficiently used for processing the wood, and certain driving and promoting effects for driving application of the laccase to wood processing, pulping and papermaking can be realized.

Description

Technical field:

[0001] The invention relates to a laccase used for wood processing and belongs to the technical field of biological fermentation engineering. Background technique:

[0002] Ligninase refers to the general term for a class of enzymes that can decompose lignin. Laccase is a very important type of ligninase. It is mainly used for lignin removal and Treatment of waste and hazardous substances in environmental governance. Lignin is the second largest biomass material after cellulose in nature, and it plays a role in supporting the mechanical properties of cells in the cell wall. The useful cellulose and hemicellulose are mostly removed by physical and chemical methods. Biological enzyme is a mild and non-polluting method for effectively removing lignin. During the process of using biological enzyme to remove lignin, it will not cause any damage to chemical substances such as cellulose and hemicellulose. However, wood materials not only have their own special c...