Preparing method for extracting medicinal evodia alkaloid by ultrasound
A technology for Evodia and alkaloids, which is applied in the field of extraction of Evodia alkaloids by ultrasonic technology, can solve the problems of large solvent consumption, complicated operation and the like, and achieves the effects of high production efficiency, short production cycle and not easy to damage.
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[0023] Example 1 Selection of extraction process conditions
[0024] (1) The effect of extraction solvent on the extraction rate of total alkaloids, evodia and evodia inferior
[0025] Experimental method: Take 700 grams of evodia powder crushed through a 10-mesh sieve, put it in an ultrasonic extractor, add different extraction solvents, the weight-volume ratio of the medicinal material to the solvent is 1:15, soak for 30 minutes, ultrasonic frequency 26kHz, extraction temperature 60°C, extraction time 40min, the extract after ultrasonic extraction is filtered by suction or centrifugation, the clear solution is concentrated to obtain a thick paste, and the thick paste is dried under reduced pressure to obtain the total alkaloids of Evodia. The extraction rates of evodialine and evodialine were calculated. Each solvent was tested in 10 batches, and the average value of 10 batches was taken. The results are shown in the table below
[0026]
[0027] The experimental results show ...
Example Embodiment
[0042] Example 2
[0043] Take 700 g of Evodia powder crushed through a 10-mesh sieve and place it in an ultrasonic extractor. The ethanol concentration is 95%, the weight-volume ratio of the medicinal material and the solvent is 1:15, soaked for 30 minutes, the ultrasonic frequency is 26kHz, and the extraction temperature is 60℃. After 40 minutes, the extract after ultrasonic extraction was filtered or centrifuged, and the clear solution was concentrated to obtain a thick paste. The thick paste was dried under reduced pressure to obtain 138.6 g of total alkaloids of evodia, and the yield was 19.8%; the content of evodia was 0.88 %, the extraction rate is 78.9%; the content of evodiaceine is 0.84%, and the extraction rate is 79.9%.
Example Embodiment
[0044] Example 3
[0045] As shown in Example 2, the difference is: the particle size of the Chinese medicinal material in Example 2 is 10 mesh, while the particle size of the Chinese medicinal material in Example 3 is 30 mesh. At this time, the total alkaloids of Evodia edulis is 162.4g, and the yield is 23.2%; The content of evodialine is 0.80%, and the extraction rate is 80.1%; the content of evodialine is 0.73%, and the extraction rate is 81.3%.
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