Preparation method of astragalus polysaccharide selenide

Abstract

The invention provides a preparation method of astragalus polysaccharide selenide, which comprises the following steps: adding astragalus polysaccharide II in dehydrated pyridine, and then adding a selenium-containing reagent SeOCl2; washing the mixture with anhydrous ethanol, depositing and centrifugating, and drying the mixture by vacuum refrigeration; and finally, obtaining light pink powderedastragalus polysaccharide selenide. The preparation method of the invention can increase the content of the organic selenium in the astragalus polysaccharide selenide; the prepared astragalus polysaccharide selenide has high biological availability; and the preparation method shortens the production time, improves the production efficiency and is economical and safe.

Description

technical field

[0001] The invention belongs to the technical field of synthesis technology, and relates to a preparation method of selenized astragalus polysaccharide. Background technique

[0002] Astragalus is a commonly used traditional Chinese medicine. Modern studies have proved that Astragalus can regulate the body's immunity. Studies have found that Astragalus is not only an immune enhancer, a good medicine with bactericidal and antiviral effects, but also a feed additive for livestock and poultry that can promote growth and improve growth efficiency. The main ingredient in this is astragalus polysaccharide, which has the following effects:

[0003] 1. It can significantly promote the growth of livestock and poultry and improve the utilization rate of feed

[0004] 2. Participate in immune regulation and improve immune function;

[0005] 3. It can replace antibiotics and reduce the residues of antibiotics in livestock and poultry

[0006] 4. It is a biological add...

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