Method for extracting effective compositions from composition of fructus ligustri lucidi and radix astragali through supercritical extraction process and products thereof
A supercritical extraction method and composition technology, which is applied in the direction of medical preparations containing active ingredients, organic active ingredients, plant/algae/fungus/moss ingredients, etc., can solve the problem of affecting product quality and clinical curative effect, and patients take a large amount , extraction rate and purity cannot meet the production and use problems
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Embodiment 1
[0066] Example 1 of the present invention: A method for extracting polysaccharides in the chastity qi composition by supercritical extraction method is as follows: crush Astragalus membranaceus and Ligustrum lucidum to 1.0mm, dry at low temperature, and weigh them in a weight ratio of 2:1 Astragalus powder and Ligustrum lucidum powder, the two are extracted alone or after being mixed; supercritical carbon dioxide is used as the extraction agent, the entrainer is 80% ethanol, the pressure is 40MPa, the temperature is 50°C, and the flow rate of carbon dioxide is controlled at 25L / h. Extract for 3 hours to obtain an extract, evaporate the extract under reduced pressure, and dry in vacuum to obtain a polysaccharide extract.
Embodiment 2
[0067] Example 2 of the present invention: A method for extracting polysaccharides in the chastity qi composition by supercritical extraction method is as follows: crush Astragalus membranaceus and Ligustrum lucidum to 0.3 mm, dry at low temperature, and weigh them in a weight ratio of 2:1 Astragalus powder and Ligustrum lucidum powder are extracted separately or mixed; supercritical carbon dioxide is used as the extraction agent, the entrainer is 60% ethanol, the pressure is 30MPa, the temperature is 40°C, and the flow rate of carbon dioxide is controlled at 10L / h. Extract for 2 hours to obtain an extract, evaporate the extract under reduced pressure, and dry in vacuum to obtain a polysaccharide component extract.
Embodiment 3
[0068] Example 3 of the present invention: A method for extracting polysaccharides in the chastity qi composition by supercritical extraction method is as follows: crush Astragalus membranaceus and Ligustrum lucidum to 2.0 mm, dry at low temperature, and weigh them in a weight ratio of 2:1 Astragalus powder and Ligustrum lucidum powder are extracted separately or after being mixed; supercritical carbon dioxide is used as the extraction agent, the entrainer is 70% ethanol, the pressure is 50MPa, the temperature is 60°C, and the flow rate of carbon dioxide is controlled at 30L / h. Extract for 4 hours to obtain an extract, evaporate the extract under reduced pressure, and dry in vacuum to obtain a polysaccharide extract.
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