Preparation method of Astragalus polysaccharide-iron
The invention provides a preparation method of Astragalus polysaccharide-iron. The method comprises the following steps: 1, extracting and purifying Astragalus polysaccharides; and 2, preparing Astragalus polysaccharide-iron: dissolving the purified Astragalus polysaccharides obtained in step 1, sod...
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| creator | LIANG ZHUMIN PANG GUANLONG DENG ZHENGYU LI JUNCHENG ZHOU ZHENBING |
| description | The invention provides a preparation method of Astragalus polysaccharide-iron. The method comprises the following steps: 1, extracting and purifying Astragalus polysaccharides; and 2, preparing Astragalus polysaccharide-iron: dissolving the purified Astragalus polysaccharides obtained in step 1, sodium tartrate and sodium carbonate in distilled water according to a weight ratio of 15:3:5, adding an iron salt solution with the weight 0.8-0.9 times the weight of the pure Astragalus polysaccharides to obtain a solution A, allowing the solution A to go through an exchange column loaded with basic ion exchange resin at a flow velocity of 3-8BV/h, reacting for 0.5-1h, cooling the obtained reaction product, filtering resin, flushing the surface of the resin with deionized water 3-5 times, carrying out alcohol precipitation with ethanol with the concentration of 75-85%, and drying the obtained precipitate at 50-70DEG C to obtain the Astragalus polysaccharide-iron. An ion exchange resin technology is adopted to cataly |
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The method comprises the following steps: 1, extracting and purifying Astragalus polysaccharides; and 2, preparing Astragalus polysaccharide-iron: dissolving the purified Astragalus polysaccharides obtained in step 1, sodium tartrate and sodium carbonate in distilled water according to a weight ratio of 15:3:5, adding an iron salt solution with the weight 0.8-0.9 times the weight of the pure Astragalus polysaccharides to obtain a solution A, allowing the solution A to go through an exchange column loaded with basic ion exchange resin at a flow velocity of 3-8BV/h, reacting for 0.5-1h, cooling the obtained reaction product, filtering resin, flushing the surface of the resin with deionized water 3-5 times, carrying out alcohol precipitation with ethanol with the concentration of 75-85%, and drying the obtained precipitate at 50-70DEG C to obtain the Astragalus polysaccharide-iron. 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The method comprises the following steps: 1, extracting and purifying Astragalus polysaccharides; and 2, preparing Astragalus polysaccharide-iron: dissolving the purified Astragalus polysaccharides obtained in step 1, sodium tartrate and sodium carbonate in distilled water according to a weight ratio of 15:3:5, adding an iron salt solution with the weight 0.8-0.9 times the weight of the pure Astragalus polysaccharides to obtain a solution A, allowing the solution A to go through an exchange column loaded with basic ion exchange resin at a flow velocity of 3-8BV/h, reacting for 0.5-1h, cooling the obtained reaction product, filtering resin, flushing the surface of the resin with deionized water 3-5 times, carrying out alcohol precipitation with ethanol with the concentration of 75-85%, and drying the obtained precipitate at 50-70DEG C to obtain the Astragalus polysaccharide-iron. 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The method comprises the following steps: 1, extracting and purifying Astragalus polysaccharides; and 2, preparing Astragalus polysaccharide-iron: dissolving the purified Astragalus polysaccharides obtained in step 1, sodium tartrate and sodium carbonate in distilled water according to a weight ratio of 15:3:5, adding an iron salt solution with the weight 0.8-0.9 times the weight of the pure Astragalus polysaccharides to obtain a solution A, allowing the solution A to go through an exchange column loaded with basic ion exchange resin at a flow velocity of 3-8BV/h, reacting for 0.5-1h, cooling the obtained reaction product, filtering resin, flushing the surface of the resin with deionized water 3-5 times, carrying out alcohol precipitation with ethanol with the concentration of 75-85%, and drying the obtained precipitate at 50-70DEG C to obtain the Astragalus polysaccharide-iron. An ion exchange resin technology is adopted to cataly</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY COMPOSITIONS BASED THEREON DERIVATIVES THEREOF HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS POLYSACCHARIDES PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS THEIR PREPARATION OR CHEMICAL WORKING-UP |
| title | Preparation method of Astragalus polysaccharide-iron |
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