Shendeng 4-decoction target field and preparation method thereof
A technology of effective parts and decoction medicinal materials, applied in the field of medicine, can solve the problems of preparation method and use of effective parts of Sendeng Siwei Decoction, etc.
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Embodiment 1
[0127] Embodiment 1: Preparation of the effective part of Sendeng Siwei Decoction
[0128] Take 1 kg of compound herbal decoction pieces of Sendeng Siwei Tang, reflux extraction with 10L of 70% ethanol twice, extract for 2 hours each time, recover the solvent under reduced pressure to obtain the extract, add a certain volume of water to disperse and dissolve, so that the amount of the medicinal material is the same as that of the dispersed solution The volume ratio is 1:3.5. Through 7.5LAB-8 macroporous adsorption resin, the adsorption flow rate is 2Bv / h, the ratio of resin column diameter to height is 1:10, and 1.5 times the resin volume is eluted with water for impurity removal, the impurity removal flow rate is 4Bv / h, and 50% ethanol is eluted 8 times the volume of the resin, the elution flow rate is 4Bv / h, collect the 50% ethanol eluate, recover the solvent, and dry under reduced pressure, which is the effective part of Sendeng Siwei Decoction.
Embodiment 2
[0129] Embodiment 2: Preparation of the effective part of Sendeng Siwei Decoction
[0130] Take 1 kg of compound herbal decoction pieces of Sendeng Siwei Decoction, add 15 L of 50% ethanol for ultrasonic extraction 3 times, extract for 1.5 hours each time, recover the solvent under reduced pressure to obtain the extract, add a certain volume of water to disperse and dissolve, so that the amount of the medicinal material is the same as that after dispersion The solution volume ratio is 1:5. Through 10L AB-8 macroporous adsorption resin, the adsorption flow rate is 2Bv / h, the diameter-to-height ratio of the resin column is 1:12, and the water is eluted to 2 times the volume of the resin for impurity removal. The impurity removal flow rate is 4Bv / h, and 50% ethanol is eluted 7 times the volume of the resin, the elution flow rate is 4Bv / h, collect the 50% ethanol eluate, recover the solvent, and dry under reduced pressure, which is the effective part of Sendeng Siwei Decoction.
Embodiment 3
[0131] Embodiment 3: Preparation of the effective part of Sendeng Siwei Decoction
[0132] Add 50% methanol to 1 kg of compound medicinal materials of Sendeng Siwei Decoction, and extract by microwave three times, each time for 1 hour, with a solvent dosage of 10 L. Add the extract to a certain volume of distilled water, so that the volume ratio of the amount of medicinal materials to the solution after dispersion is 1 : 8, then centrifuged for 35 minutes at a speed of 4000 revs / min, poured out the supernatant, the precipitate was refluxed 2 times with ethanol as 3BV in terms of crude drug amount, each 1.5 hours, combined the ethanol extract, reclaimed the solvent, The residue is the effective part of Sendeng Siwei Tang.
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