Total flavone extract of maniod eibish, its preparation and application
A technology of hollyhock flowers and total flavonoids is applied in the application field of preparing medicines for treating nephritis, can solve problems such as instability, no nephritis disease has been seen, and achieve the effect of reliable curative effect
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Embodiment 1
[0067] Take 1 kg of hollyhock peanut medicinal powder, add 10 times the amount of 80% ethanol and heat and reflux for extraction for 2 hours, extract 3 times in total, combine the extracts, let cool, filter, recover ethanol under reduced pressure until there is no alcohol, and concentrate to 60 ° C for relative Extraction with a density of 1.13; add boiling water equivalent to 5 times the amount of the crude drug, stir in several times to dissolve, filter, add the filtrate to a non-polar D101 macroporous adsorption resin column, wash 6 column volumes with water, and rinse with 10% Ethanol for 2 column volumes, 70% ethanol to AlCl free 3 reaction, collecting 70% ethanol eluate, concentrating the eluate under reduced pressure at a temperature lower than 60°C, and vacuum-drying to obtain the crude product of total flavonoids extract from marshmallow flowers; Ester-ethanol (76.89:38.79 V / V) was extracted under reflux three times, each time for 2 hours, the solvent was recovered, a...
Embodiment 2
[0069] Take 1 kg of hollyhock peanut medicinal powder, add 8 times the amount of 70% ethanol and heat and reflux for extraction for 2 hours, extract 3 times in total, combine the extracts, let cool, filter, recover ethanol under reduced pressure until there is no alcohol, and concentrate to 60°C for relative Extraction with a density of 1.14; add boiling water equivalent to 4 times the amount of the crude drug, stir several times to dissolve, filter, add the filtrate to a weakly polar AB-8 macroporous adsorption resin column, wash 8 column volumes with water, and use 10% ethanol for 2 column volumes, 70% ethanol to AlCl free 3 reaction, collecting 70% ethanol eluate, concentrating the eluate under reduced pressure at a temperature lower than 60°C, and vacuum-drying to obtain the crude product of total flavonoids extract from marshmallow flowers; Ester-ethanol (76.89:38.79 V / V) was extracted under reflux three times, each time for 2 hours, the solvent was recovered, and the pro...
Embodiment 3
[0071] Take 1 kg of hollyhock peanut medicine powder, add 8 times the amount of 60% ethanol and heat and reflux for extraction for 2 hours, extract 3 times in total, combine the extracts, let cool, filter, recover the ethanol under reduced pressure until there is no alcohol, and concentrate to 60 ° C for relative Extraction with a density of 1.16; add boiling water equivalent to 4 times the amount of the crude drug, stir several times to dissolve, filter, add the filtrate to a medium-polarity DM301 macroporous adsorption resin column, wash 5 column volumes with water, and wash with 10% ethanol Elute 1 column volume with 70% ethanol to AlCl free 3 Reaction, collect 70% ethanol eluate, concentrate the eluate under reduced pressure at a temperature lower than 60°C, and dry in vacuum to obtain crude product of total flavonoids extract from marshmallow flowers; use 10 times the amount of ethyl acetate to obtain crude total flavonoids extract - Ethanol (76.89: 38.79 V / V) reflux extr...
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