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Method for removing hemicellulose during cellulose extraction from bran

A technology of hemicellulose and bran, applied in the field of biological resources, can solve the problems of scientific research and technical personnel's health hazards, environmental pollution, easy inactivation of enzymes, etc.

Inactive Publication Date: 2017-10-24
HENAN UNIV OF URBAN CONSTR
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Problems solved by technology

[0003] Existing methods for removing hemicellulose in the process of extracting cellulose from bran mainly include double-enzyme method, enzyme-chemical method, acid method, alkali method, etc., but the specificity of the enzyme determines the high cost of its application, and Enzymes are very easy to inactivate, and the application of acid and alkali methods will bring serious environmental pollution, and there are hidden dangers to the health of scientific research and technical personnel
[0004] For the above problems, no effective solution has been proposed

Method used

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  • Method for removing hemicellulose during cellulose extraction from bran
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  • Method for removing hemicellulose during cellulose extraction from bran

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Embodiment Construction

[0015] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0016] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses a method for removing hemicellulose in the extraction process of cellulose in bran. The method includes the steps of preprocessing bran, adding the processed bran to a sodium hydroxide solution, and removing hemicellulose through ultrasonic waves according to preset technological conditions, wherein the concentration of the sodium hydroxide solution is 4-12%, the preset technological conditions include that the ultrasonic wave output power is 80-160 W, the ultrasonic wave processing temperature is 40-80 DEG C, the ultrasonic wave processing time is 2-10 h, and the material-to-solution ratio is 1:(8-24) g / mL. Hemicellulose can be sufficiently removed, and the environment pollution caused by solvent consumption can be reduced.

Description

technical field [0001] The invention relates to the field of biological resources, in particular to a method for removing hemicellulose in the process of extracting cellulose from bran. Background technique [0002] Cellulose and its derivatives are widely used in energy, environment, medicine, food, chemical industry and machinery. The annual output of wheat bran in my country is more than 20 million tons, and the content of cellulose in bran is very rich. Using bran as raw material to extract cellulose is beneficial to the rational utilization of bran. [0003] Existing methods for removing hemicellulose in the process of extracting cellulose from bran mainly include double-enzyme method, enzyme-chemical method, acid method, alkali method, etc., but the specificity of the enzyme determines the high cost of its application, and Enzymes are very easy to inactivate, and the application of acid and alkali methods will bring serious environmental pollution, and there are hidde...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21C5/00D21C3/26
CPCD21C3/26D21C5/00D21C5/005
Inventor 刘俊红谢慧丽杨红霞张晓亚王锟宇
Owner HENAN UNIV OF URBAN CONSTR
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