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A green extraction and purification process of alginate

A kind of alginate, green technology, applied in the field of green extraction and purification process of alginate

Active Publication Date: 2020-09-11
青岛海之林生物科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the problems existing in the existing production process of alginate, the present invention proposes a green extraction and purification process of alginate, which adopts steam treatment and natural preservative treatment technology to replace the harmful substance formaldehyde treatment technology in the existing process; adopts three-stage filtration Technology to remove impurities such as pigments, endotoxins, and miscellaneous proteins; use alcohol washing to further remove miscellaneous polyphenols

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Steam treatment: put 400kg of dry kelp into steam and carry out high heat treatment for 20 minutes to denature the algae protein, so that the protein can be removed in the following process;

[0038] (2) Natural preservative treatment: Soak the kelp with 10 times of water, add 12.8kg of lysozyme and 19.2kg of lactococcus at the same time, soak for 4 hours, cut into strips of about 10 cm, and use 30 times of kelp Wash in countercurrent with clean water several times until clean;

[0039] (3) Digestion: Add sodium carbonate solution to the chopped kelp for digestion, let it sit for 5 hours at a constant temperature of 50°C, and then break the kelp into viscous sodium alginate mud to make the insoluble alginate in the kelp After being transformed into water-soluble sodium alginate, it dissolves and enters the extract;

[0040] (4) Three-stage filtration: Firstly, the clarified glue solution obtained after floating is firstly filtered with a plate-and-frame filter pres...

Embodiment 2

[0056] (1) Steam treatment: put 200kg of dried macroalgae into steam for high heat treatment for 25 minutes to denature the protein of the algae and facilitate the removal of the protein in the subsequent process;

[0057] (2) Natural preservative treatment: soak and clean the macroalgae with 20 times of water, add 11kg of lysozyme and 9kg of lactococcus at the same time, soak for 4 hours, cut into strips of about 10 cm, and use 30 times of macroalgae Wash in countercurrent with clean water several times until clean;

[0058] (3) Digestion: Add sodium carbonate solution to the chopped macroalgae for digestion, keep it at a constant temperature of 70°C for 3 hours, and then break the macroalgae into a viscous mud to make the insoluble alginate in the macroalgae After being transformed into water-soluble potassium alginate, it dissolves and enters the extract;

[0059] (4) Three-stage filtration: Firstly, the clarified glue solution obtained after floating is firstly filtered w...

Embodiment 3

[0075] (1) steam treatment: put 300kg of dry sargassum into steam and carry out high heat treatment for 25 minutes, so that the protein of the algae is denatured, so that the protein can be removed in the following process;

[0076] (2) Natural preservative treatment: soak and clean Sargassum with 20 times of water, add 16.5kg of lysozyme and 13.5kg of Streptococcus lactis at the same time, soak for 4 hours, cut into strips of about 10 cm, and use Sargassum strips 30 times countercurrent washing with water until clean;

[0077] (3) Digestion: add sodium carbonate solution to the chopped sargassum for digestion, keep it at a constant temperature of 60°C for 4 hours, and then break the sargassum into a viscous mud to make the insoluble alginate in sargassum After being transformed into water-soluble sodium alginate, it dissolves and enters the extract;

[0078] (4) Three-stage filtration: Firstly, the clarified glue solution obtained after floating is firstly filtered with a pl...

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Abstract

The invention provides a green extraction and purification technology of algin, aiming at the problems of an existing algin production technology. A steam treatment and natural preservative treatmenttechnology is used for replacing a harmful substance formaldehyde treatment technology in the existing technology; a three-grade filtering technology is used for removing impurities including pigments, endotoxin, hybrid protein and the like; hybrid polyphenol is further removed by adopting alcohol washing. The algin prepared by the technology has the endotoxin less than or equal to 50EU / g, the hybrid protein less than or equal to 0.2 percent, the hybrid polyphenol less than or equal to 0.1 percent, water insoluble matters less than or equal to 0.1 percent, chloride less than or equal to 0.1 percent, calcium content less than or equal to 1.5 percent and light transmittance greater than or equal to 80 percent, and no formaldehyde.

Description

technical field [0001] The invention belongs to seaweed extraction and processing technology, in particular to a green extraction and purification process of alginate. Background technique [0002] my country is a big country in the development, processing and utilization of seaweed resources, and the seaweed processing industry has become an important field of comprehensive utilization of marine resources in my country. The application of alginate in the field of medicine in China has just developed in recent years, while it has been used in foreign countries for nearly 60 years. At present, with the improvement of the wide application of alginate in medicine, domestic and international approval of sodium alginate for medicine The quality and purity requirements are getting higher and higher. We have learned that foreign customers have strict requirements on heavy metals, endotoxins, miscellaneous proteins, heteropolyphenols, chlorides, calcium content, water-insoluble sub...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B37/04
CPCC08B37/0003C08B37/0084
Inventor 陈宏时慧刘晶营刘兴勇崔冰孙暖暖刘双双陈翔
Owner 青岛海之林生物科技开发有限公司