Drop pills of general glycosides of picrorhiza rhizome, and preparation method
A technology of huanglian and glycoside dropping pills, applied in the field of huanglian total glycosides dropping pills and preparation thereof, can solve the problems of rebound, easy to produce explosive jaundice, etc., achieves high bioavailability, is beneficial to labor protection, and low production cost Effect
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Embodiment 1
[0024] Take 1000g of Huhuanglian, add 75% ethanol to reflux and extract twice, each time for 2 hours, combine the extracts, recover ethanol under reduced pressure, refrigerate at 2°C for 24 hours, filter, add water to dilute the filtrate to 500ml, and apply macroporous resin Column, elute respectively with water, 10% ethanol, 60% ethanol, collect the darker part of the color band of 60% ethanol elution part, reclaim ethanol, dilute to 100ml, put on silica gel column, use methanol: trichloromethane (1 :9) eluting, collecting the eluate, recovering the solvent under reduced pressure, and recrystallizing with acetone to obtain pale yellow crystals, which are the total glycosides extract of Coptis chinensis.
[0025] The yield of the total glycosides extract of berberine obtained by the process is not less than 0.5%, and the content is not less than 80% in terms of berberine II.
[0026] Take 50g of the total glycosides extract of Coptis chinensis, add 100g of polyethylene glycol ...
Embodiment 2
[0028] Take 1000g of Huhuanglian, add 80% ethanol to reflux and extract twice, each time for 2 hours, combine the extracts, recover ethanol under reduced pressure, refrigerate at 4°C for 24 hours, filter, add water to dilute the filtrate to 600ml, and apply macroporous resin Column, elute respectively with water, 15% ethanol, 70% ethanol, collect the darker part of the color band of 70% ethanol elution part, reclaim ethanol, dilute to 100ml, go up silica gel column, use methanol: trichloromethane (2 : 8) eluting, collecting the eluate, recovering the solvent under reduced pressure, and recrystallizing with acetone to obtain pale yellow crystals, which are the total glycosides extract of Coptis chinensis.
[0029] The yield of the total glycosides extract of berberine obtained by the process is not less than 0.5%, and the content is not less than 80% in terms of berberine II.
[0030] Take 50g of the total glycosides extract of Coptis chinensis, add 100g of polyethylene glycol ...
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