Prepn process of tripterygium extractive
A technology of Tripterygium wilfordii and extracts, which is applied in the field of preparation of Chinese herbal medicine extracts, can solve the problems of long extraction time of active ingredients of Tripterygium wilfordii, unfavorable separation work, and low production efficiency, so as to avoid scald accidents, improve the working environment, and occupy The effect of small area
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Embodiment 1
[0012] Stir 420kg of Tripterygium wilfordii medicinal material coarse powder with 80% ethanol to fully moisten the medicinal material, put the moistened medicinal material into the extraction column, seal the extraction column, turn on the vacuum pump to extract the air in the extraction column, and control the vacuum degree at 0.08Mpa , into a proper amount of ethanol to make the medicinal materials just submerged, and then pressurized by compressed air for 10 minutes, the pressure is 0.02Mpa, and then the dynamic countercurrent low-temperature sleeve extraction operation is carried out, and the extraction temperature is 25°C.
[0013] The device used for dynamic countercurrent low temperature jacket extraction is 6 closed series extraction columns. Add 110kg of 80% ethanol to the first extraction column, turn on the circulation pump, let the ethanol pass through the medicinal materials from bottom to top for countercurrent extraction, the required time is 40 minutes, and the ...
Embodiment 2
[0016] The difference between embodiment 2 and embodiment 1 is that the time of pressurization is 30 minutes, the time used for extraction is 50 minutes, the extraction temperature is at 30 ℃, the organic solvent used is methanol, and its total consumption is 840kg. The agent is dichloromethane, and the extraction yield is 12.6‰.
Embodiment 3
[0018] The difference between embodiment 3 and embodiment 1 is that the extraction column used is 12, the amount of medicinal materials added is 840kg, the concentration of ethanol used is 60%, and the total consumption is 1680kg. After each ethanol is added, flow through 11 extraction columns. column, the extraction yield was 11.5‰.
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