Preparation method of radix bupleuri and Radix Scutellariae granules
A granule and Chaihuang technology, applied in the field of preparation of Chaihuang granules, can solve the problems of easy destruction of baicalin extraction, loss of Chaihu volatile oil, etc., and achieve the effects of improving extraction rate, enhancing curative effect and increasing content.
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Embodiment 1
[0024] A preparation method of chaihuang granules, comprising the steps of:
[0025] 1) Extraction of active ingredients of Bupleuri and embedding in volatile oil: take 2500g of Bupleurum decoction pieces, wash them, add them to CO 2 In the supercritical extractor, ethanol is used as an entrainer, and the volume percentage of the entrainer in the total extraction solvent is 4%, the extraction pressure is 15MPa, the temperature is 30°C, and the CO 2 Flow rate 1m1 / g crude drug min, extraction time 30min, get Bupleurum volatile oil and extraction residue, add water to decoct the residue once, add 10 times the amount of water to decoct for 3 hours, filter, and concentrate the filtrate into a clear paste with a relative density of 1.10 , add ethanol to the clear paste under stirring until the alcohol content is 60%, let it stand for more than 12 hours, filter and concentrate to obtain Bupleurum extract; embed the volatile oil with β-cyclodextrin to form a capsule The compound was ...
Embodiment 2
[0031] A preparation method of chaihuang granules, comprising the steps of:
[0032] 1) Extraction of active ingredients of Bupleuri and embedding in volatile oil: Take 2500g of Bupleurum decoction pieces, wash them, add them to CO 2 In the supercritical extractor, ethanol is used as an entrainer, and the volume percentage of the entrainer in the total extraction solvent is 6%, the extraction pressure is 30MPa, the temperature is 50°C, and CO 2The flow rate is 3m1 / g crude drug min, the extraction time is 50min, and the volatile oil and extraction residue of Bupleurum chinensis are obtained. The residue is decocted once with 10 times the amount of water and decocted for 3 hours, filtered, and the filtrate is concentrated into a clear paste with a relative density of 1.20 , add ethanol to the clear paste under stirring until the alcohol content is 60%, let it stand for more than 12 hours, filter and concentrate to obtain Bupleurum extract; embed the volatile oil with β-cyclodext...
Embodiment 3
[0038] A preparation method of chaihuang granules, comprising the steps of:
[0039] 1) Extraction of active ingredients of Bupleuri and embedding in volatile oil: take 2500g of Bupleurum decoction pieces, wash them, add them to CO 2 In the supercritical extractor, ethanol is used as an entrainer, and the volume percentage of the entrainer in the total extraction solvent is 5%, the extraction pressure is 22MPa, the temperature is 40°C, and CO 2 The flow rate is 2m1 / g crude drug min, the extraction time is 40min, and the volatile oil and extraction residue of Bupleurum bupleuri are obtained. The residue is decocted once with water, and decocted with 10 times the amount of water for 3 hours, filtered, and the filtrate is concentrated into a clear paste with a relative density of 1.15 , add ethanol to the clear paste under stirring until the alcohol content is 60%, let it stand for more than 12 hours, filter and concentrate to obtain Bupleurum extract; embed the volatile oil with...
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