Helleborus thibetanus extract, separation method of effective components in Helleborus thibetanus extract and compounds obtained by separation method
A separation method and technology for active ingredients, applied in the separation/purification of carboxylic acid compounds, medical preparations containing active ingredients, separation/purification of hydroxyl compounds, etc. question
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Embodiment 1
[0116] Embodiment 1 of the present invention: the preparation of iron chopsticks extract (see figure 1 ):
[0117] Take iron chopsticks medicinal materials, crush them into coarse powder, extract 3 times with 8 times, 6 times, and 6 times 95% ethanol respectively, each time for 2 hours, to obtain 95% ethanol extract, and set aside; amount, 6 times the amount, and 6 times the amount of 50% ethanol were extracted 3 times, each time for 2 hours, to obtain a 50% ethanol extract; combine all the extracts, concentrate under reduced pressure, recover the solvent, dry at 70°C in vacuum, and then add an appropriate amount of water to disperse , sequentially extracted four times with petroleum ether and ethyl acetate respectively, concentrated the ethyl acetate extract under reduced pressure to obtain the ethyl acetate layer extract, and dried it.
Embodiment 2
[0118] Embodiment 2: the preparation of iron chopsticks extract:
[0119] Take the iron chopsticks medicinal material, crush it into coarse powder, extract twice with 8 times, 7 times, and 6 times the amount of 95% ethanol, each time for 3 hours, to obtain 95% ethanol extract, and set aside; amount, 7 times, 6 times of 50% ethanol extraction twice, 3 hours each time, to obtain 50% ethanol extract; combine all extracts, concentrate under reduced pressure, recover the solvent, vacuum dry, then add appropriate amount of water to disperse, and then use Petroleum ether and ethyl acetate were extracted 5 times each, and the ethyl acetate extract was concentrated under reduced pressure to obtain the ethyl acetate layer extract, which was dried.
Embodiment 3
[0120] Embodiment 3: the preparation of iron chopsticks extract:
[0121] Take iron chopsticks medicinal materials, crush them into coarse powder, extract 4 times with 8 times the amount of 95% ethanol, each time for 1.5 hours, to obtain 95% ethanol extract, and set aside; then extract the dregs with 8 times the amount of 50% ethanol for 4 times , 1.5h each time to obtain 50% ethanol extract; combine all extracts, concentrate under reduced pressure, recover the solvent, dry, then add appropriate amount of water to disperse, successively extract 3 times with petroleum ether and ethyl acetate respectively, and concentrate acetic acid under reduced pressure Ethyl extract, get ethyl acetate layer extract, and dry it.
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