Process for extracting polygonatum polysaccharides, preparing process for medical preparation and use thereof
A polysaccharide and extraction method technology of Polygonatum japonica is applied in the directions of drug combinations, medical preparations containing active ingredients, pharmaceutical formulations, etc. Active ingredient groups, etc.
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specific Embodiment 1
[0073] Dried Polygonatum 9Kg and cut into small pieces, add 10 times the amount of water, boil and extract for 1 hour, filter the extract, add 10 times more water to the dregs, boil and extract for 1 hour, filter the extract, and combine the two extracts , centrifuged, the supernatant was concentrated under reduced pressure to a relative density of 1.15 (50°C), placed at room temperature, added 95% ethanol to make the alcohol content 80%, stirred and left for 12 hours, separated to get the precipitate , wash with cold distilled water 1.5 times, heat the distilled water to dissolve the precipitate, add 95% ethanol to make the alcohol content 70%, let it stand for 12 hours, separate the precipitate, wash three times with 3 times the amount of 95% ethanol, discard The alcohol washing solution and the precipitate were freeze-dried for 12 hours, then vacuum-dried to dryness at a temperature of 60° C., taken out, and pulverized to obtain 340 g of white powder with a yield of 3.8% and...
specific Embodiment 2
[0074] Dried Polygonatum 10Kg and cut into small pieces, add 10 times the amount of water, boil and extract for 1 hour, filter the extract, add 10 times more water to the dregs, boil and extract for 1 hour, filter the extract, and combine the two extracts , centrifuged, the supernatant was concentrated under reduced pressure to a relative density of 1.15 (50° C.), placed at room temperature, added 95% ethanol to make the alcohol content 80%, left to stand for 12 hours, separated to get the precipitate, Add cold distilled water to wash 1.5 times, dissolve the alcohol precipitate in water, make a 1:10 (alcohol precipitate: water) suspension, and centrifuge to remove the insoluble matter. First use a hollow fiber ultrafiltration column with a relative molecular weight cut-off of 40,000 to remove macromolecular substances such as gums with a relative molecular weight greater than 40,000, the flow rate is 20ml / min, and the pressure is 0.15×106Pa; then use a hollow fiber ultrafiltrat...
specific Embodiment 3
[0075] Capsule preparation: Polygonatum polysaccharide 50g
[0076] Micronized silica gel 50g
[0077] Dextrin 50g
[0078] About 1000 capsules can be made
[0079] Mix the prescription amount of micro-powder silica gel and dextrin, then add it to the prescription amount of polysaccharide, mix well, vacuum dry (vacuum degree 0.08-0.09Mpa), crush, mix well, pack into capsules (No. 2), about 1000 grain. Each capsule weighs 0.15g, and each capsule contains 0.05g Polygonatum polysaccharide.
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