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Preparation process and application of halogenated algal polysaccharide

A technology of seaweed polysaccharide and preparation process, which can be applied in application, climate change adaptation, horticulture and other directions, and can solve the problems of reduced effect, large influence of disinfection power, poor stability and the like

Inactive Publication Date: 2020-10-27
青岛海大生物集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the stability of halogen-based sterilization and disinfection products is poor, and it is easily invalidated by conditions such as temperature, light, and evaporation. Moreover, its disinfection power is greatly affected by dirt, and it needs to be effective under strong acid, and the effect is reduced under alkaline conditions.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1 Preparation of iodized green algae polysaccharide

[0022] Take 10g of water-soluble polysaccharide in Chlorella Enteromorpha, add water and dissolve it into a 10% aqueous solution. Dissolve 1.2g of iodine in 5mL KI solution first, then slowly add it dropwise into the polysaccharide solution, seal it, and stir in a water bath at 40°C for 2 hours to obtain an iodized chlorophyll polysaccharide solution. Then add an appropriate amount of Tween 60 and alginic acid to the reaction solution, and continue to stir for 30 minutes, which is iodized chlorophyll polysaccharide, containing 1.2% of organic iodine;

Embodiment 2

[0023] Example 2 Preparation of Sodium Bromide Alginate

[0024] Take 5g of sodium alginate, add water to prepare a 2% aqueous solution, slowly add 4mL of bromine water dropwise to it while stirring, seal, and stir in a water bath at 50°C for 3.5 hours. Add appropriate amount of glycerin and gelatin to the reaction solution, and continue to stir for 30 minutes to obtain sodium alginate bromide.

Embodiment 4

[0025] Example 4 Application of iodized chlorophyll polysaccharide in white spot disease of prawn

[0026] The iodized chlorophyll polysaccharide prepared in Example 1 is applied to the prevention and treatment of white spot disease of Penaeus vannamei. The breeding area of ​​Penaeus vannamei in the test area is 12 mu, 6 mu per mouth, and the depth of the pond is 1.5m. When the onset occurred in early July 2019, the average body length of the prawns had reached 7.63cm. Add 3g of iodized chlorophyll polysaccharide to the feed. After 3 days of continuous feeding, the white spot disease has been effectively controlled. After that, continue to use it for a week, feed the bait normally, and there is no outbreak of the disease. The vannamei shrimp grows to 12.11cm and survives. The rate is above 75%. It shows that the halogenated seaweed polysaccharide of the present invention has a therapeutic effect on viruses and can promote biological growth.

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Abstract

The invention discloses a preparation process and application of halogenated algal polysaccharide, and belongs to the field of macromolecular organic matters and preparation processes thereof. Halogenmolecules are used as the coordination center of the halogenated algal polysaccharide to form coordination bonds with hydroxyl or carboxyl of the algal polysaccharide. The preparation process of thehalogenated algal polysaccharide comprises the following steps of: (1) carrying out complexing reaction on the algal polysaccharide and the halogen molecules; and (2) stabilizing the halogenated algalpolysaccharide. The halogenated algal polysaccharide is a macromolecular complex, the bacteriostatic and disinfection activity of the halogenated algal polysaccharide is also improved while the stability of the complex is improved, and the algal polysaccharide serving as a natural macromolecular compound also provides marine bioactive nutrient substances for animals and plants, and the application is safer and more efficient; the technology provided by the invention fills up the blank of halogenated algal polysaccharide preparation technology, can be widely applied to the fields of preventionand treatment of crop virus diseases, aquatic product disinfection and infection resistance, and has broad application prospects.

Description

technical field [0001] The present invention relates to a preparation process and application of a halogenated seaweed polysaccharide, in particular to a preparation process for forming a macromolecular complex with a halogen molecule as a coordination center, coordinated with a hydroxyl group or a carboxyl group of a seaweed polysaccharide and its application in crop viruses, The application in the field of disinfection and anti-infection of aquatic product cultivation belongs to the field of macromolecular organic matter and its preparation process. Background technique [0002] Halogen can oxidize the active groups in the bacteria and combine with amino groups to denature proteins, so it has significant bactericidal properties. For example, sodium fluoride has a strong bactericidal effect on fungi and spores, 1-2% iodine tincture is often used for skin disinfection, and iodine glycerin is often used for disinfection of mucous membranes. Common halogen-containing bacteric...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/00A01G13/00A01K61/13A01N43/16A61P1/00A61P7/04A61P31/00A61P31/14A61P31/20A61P37/02A01P1/00
CPCC08B37/00A01K61/13A01G13/00A01N43/16A61P31/20A61P31/00A61P37/02A61P31/14A61P7/04A61P1/00Y02A40/81
Inventor 台文静庄松娟王海华单俊伟高文逸
Owner 青岛海大生物集团股份有限公司
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