Method for preparing cellulose ether by using bast fiber crops, straws and other herbaceous plants as raw materials

A technology of herbal plants and cellulose ethers, applied in the use of microorganisms/enzyme cellulose treatment, non-woody plants/crop pulp, fiber raw material treatment, etc., can solve the problem of low function of degumming strains, imperfect degumming process, and insufficient enzyme activity Advanced problems, to achieve the effect of complete removal of gum, complete enzyme system and high enzyme activity
CN109295784AActive Publication Date: 2019-02-01INST OF BAST FIBER CROPS CHINESE ACADEMY OF AGRI SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
INST OF BAST FIBER CROPS CHINESE ACADEMY OF AGRI SCI
Publication Date
2019-02-01

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Abstract

The invention provides a method for preparing cellulose ether by using bast fiber crops, straws and other herbaceous plants as raw materials. Wherein the degumming method for the bast fiber crops, thestraws and other herbaceous plants comprises the following steps: the fermentation degumming of the bast fiber crop raw materials is carried out by using a composite strain, and the composite straincomprises plant spoilage bacteria with a preservation number of CGMCC14601 and bacillus subtilis with a preservation number of CCTCC M2018483. The method adopts a mixed culture of plant spoilage bacteria PW and bacillus subtilis BSE to together catalyze the degradation of non-cellulose of the bast fiber crops, the straws and other herbaceous plants. The preparation method has the advantages of high enzyme activity, fast reproduction, complete enzyme system, simple process, low labor intensity, uniform degumming, thorough removal of colloid and the like.
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Description

technical field

[0001] The present invention relates to the technical field of natural fibers such as hemp and straw, and more specifically relates to a method for preparing cellulose ether by using herbaceous plants such as hemp and straw as raw materials. Background technique

[0002] Cellulose is the most abundant biopolymer in the world and one of the most valuable natural renewable resources for human beings. Ramie, kenaf, jute, hemp, green hemp, flax, apocynum and other hemp bast parts, hemp leaves such as abaca and sisal, and straws such as wheat and rice contain 40% to 70% of cellulose and 20% to 50% colloid is an important fiber raw material. Colloids mainly include pectin, hemicellulose, lignin, etc. These substances are embedded between cells and in the cell wall. Through the degumming process, the cellulose in the non-cellulose extracted hemp bast can be removed.

[0003] China is the world's largest producer and consumer of cellulose ether, with an average an...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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