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Preparation method of astragalus polysaccharide selenide

A technology of astragalus polysaccharide and selenization, which is applied in the field of preparation of selenized astragalus polysaccharide, can solve the problems of low utilization rate of selenized astragalus polysaccharide and low selenium content, and achieve the effects of saving production time, increasing the rate of selenium content, and saving costs

Inactive Publication Date: 2010-02-24
HANGZHOU WONDERFUL BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, the utilization rate and selenium content of selenized astragalus polysaccharides prepared in actual production are low. How to improve the production efficiency of selenized astragalus polysaccharides and simultaneously improve its bioavailability is a major problem in the current production of astragalus polysaccharides.

Method used

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  • Preparation method of astragalus polysaccharide selenide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Selenization of astragalus polysaccharide

[0026] (1) Experimental materials

[0027] (1) Selenium-containing reagent-SeOCl with acid chloride structure 2 (Selenium content is 4%, entrusted to Rongda Pharmaceutical Chemicals to prepare);

[0028] (2) Astragalus polysaccharide II;

[0029] (3) Magnetic stirrer;

[0030] (4) Centrifuge;

[0031] (5) dehydrated pyridine;

[0032] (6) Dehydration device;

[0033] (7) dehydrated alcohol;

[0034] (8) Material dialysis bag (Vising product);

[0035] (2) Test method

[0036] (1) Synthesis of a selenium-containing reagent-SeOCl with an acid chloride structure 2 (Completed by Hangzhou Rongda Pharmaceutical Co., Ltd., containing 4% selenium);

[0037] (2) Astragalus polysaccharide selenization: see figure 1 , add astragalus polysaccharide II to the dehydrated pyridine, stir with a magnetic stirrer, stir for 20min, try to make it evenly distributed in the pyridine, and then drop the selenium-containing reagent-SeOCl th...

Embodiment 2

[0056] Selenization of astragalus polysaccharide

[0057] (1) Experimental materials

[0058] (1) Selenium-containing reagent-SeOCl with acid chloride structure 2 (Selenium content is 4%, entrusted to Rongda Pharmaceutical Chemicals to prepare);

[0059] (2) Astragalus polysaccharide II;

[0060] (3) Magnetic stirrer;

[0061] (4) Centrifuge;

[0062] (5) dehydrated pyridine;

[0063] (6) Dehydration device;

[0064] (7) dehydrated alcohol;

[0065] (8) Material dialysis bag (Vising product);

[0066] (2) Test method

[0067] (1) Synthesis of a selenium-containing reagent-SeOCl with an acid chloride structure 2 (Completed by Hangzhou Rongda Pharmaceutical Co., Ltd., containing 4% selenium);

[0068] (2) Astragalus polysaccharide selenization: see figure 1 , add astragalus polysaccharide II to the dehydrated pyridine, stir with a magnetic stirrer, stir for 20min, try to make it evenly distributed in the pyridine, and then drop the selenium-containing reagent-SeOCl thre...

Embodiment 3

[0087] Selenization of astragalus polysaccharide

[0088] (1) Experimental materials

[0089] (1) Selenium-containing reagent-SeOCl with acid chloride structure 2 (Selenium content is 4%, entrusted to Rongda Pharmaceutical Chemicals to prepare);

[0090] (2) Astragalus polysaccharide II;

[0091] (3) Magnetic stirrer;

[0092] (4) Centrifuge;

[0093] (5) dehydrated pyridine;

[0094] (6) Dehydration device;

[0095] (7) dehydrated alcohol;

[0096] (8) Material dialysis bag (Vising product);

[0097] (2) Test method

[0098] (1) Synthesis of a selenium-containing reagent-SeOCl with an acid chloride structure 2 (Completed by Hangzhou Rongda Pharmaceutical Co., Ltd., containing 4% selenium);

[0099] (2) Astragalus polysaccharide selenization: see figure 1 , add astragalus polysaccharide II to the dehydrated pyridine, stir with a magnetic stirrer, stir for 20min, try to make it evenly distributed in the pyridine, and then drop the selenium-containing reagent-SeOCl th...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/00
Inventor 姜礼辉刘韶娜邹晓庭陈伟东
Owner HANGZHOU WONDERFUL BIOTECH
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