Post-extraction method of curdlan

An extraction method and fermentation liquid technology, which is applied in the field of post-extraction of curdlan gum, can solve the problems of high production cost and large safety hazard, and achieve the effects of low production cost, safe production cost and volume reduction

Active Publication Date: 2012-04-11
HEBEI HENBO BIO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The traditional extraction process of curdlan adopts the extraction process of adding organic solvents, and the process steps are filtration, primary solvent extraction, filtration, secondary solvent extract

Method used

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Examples

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the examples, but not as a limitation to the present invention. The scope of protection of the present invention is based on the content recorded in the claims, and any equivalent technical means made according to the description shall not depart from the present invention. scope of protection.

[0031] The post-extraction method of curdlan gum comprises the following processing steps:

[0032] A. Enzyme treatment of fermentation broth

[0033] The fermentation broth was first heated to 45°C, and 150 ppm of lysozyme and acid protease were added respectively, and kept for 4 hours;

[0034] B. Membrane treatment

[0035] Concentrate the fermented liquid after enzyme treatment with a membrane, so that the solid content of the fermented liquid reaches 11% after concentration;

[0036] C. The first dissolution and sedimentation filtration

[0037] Add sodium hydroxide solution or potassium hydr...

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Abstract

The invention belongs to post-extraction of microbial polysaccharide, and in particular relates to a post-extraction method of curdlan. The method comprises the following process steps: fermentation broth enzyme treatment, membrane treatment, first dissolution, sedimentation and filtration, secondary dissolution, sedimentation and filtration, drying and the like. By using the method of the invention, the technical defects in the prior art that high production cost is high because of the adoption of alcohol extraction and large potential safety hazard exists in the production process are solved. The post-extraction method of the invention can be used for effectively removing thallus and impurities and has the advantages of rapid extraction schedule, small influence on material quality, safe production and low cost.

Description

technical field [0001] The invention belongs to post-extraction of microbial polysaccharides, in particular to a post-extraction method of curdlan gum. Background technique [0002] Curdlan gum is a new type of microbial exopolysaccharide. Because the polysaccharide has the unique property of forming a gel under heating conditions, it is also called thermal gel. The English name is Curdian. It can be widely used in food, medicine and other industries. . The traditional extraction process of curdlan adopts the extraction process of adding organic solvents, and the process steps are filtration, primary solvent extraction, filtration, secondary solvent extraction, filtration, drying and other steps. The above-mentioned prior art has the production cost of using organic solvent extraction High, technical defects with great potential safety hazards in the production process. Contents of the invention [0003] The purpose of the present invention is to provide a post-extractio...

Claims

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Application Information

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IPC IPC(8): C08B37/00
Inventor 张禹张国佩张少华贾敬敏脱勇国
Owner HEBEI HENBO BIO TECH
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