Preparation method and application of effective component of artemisia sieversiana
A kind of technology of effective parts, Artemisia annua, applied in the fields of chemistry and biomedicine
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Embodiment 1
[0018] a. Take 3.5Kg of dried whole Artemisia grandis, crush it, soak it with petroleum ether, a small polar organic solvent, at room temperature for 7 days, filter to remove the medicinal residues, use a rotary evaporator to remove petroleum ether from the filtrate to obtain the low-polarity part of Artemisia grandis ;
[0019] b. Dissolve and disperse 4 g of the dried Artemisia grandis low-polarity part obtained in step a, add 40 mL of water, extract 3 times with n-hexane, 40 mL each time, evaporate the n-hexane part and the water part of the raffinate to dryness respectively, The water part after evaporation was dissolved in acetonitrile, filtered, and the filtrate was evaporated to dryness to obtain the effective part of Artemisia grandis.
Embodiment 2
[0021] a. Take 100g of dried Artemisia grandis, pulverize it, put it in a 2L stoppered flask, put the flask into an ultrasonic extractor, and use a small polar organic solvent, chloroform, for ultrasonic extraction at room temperature for 3 times, 1.5L each time, and the extraction time for each time For 0.5h, combine the extracts, filter, and concentrate to dryness under reduced pressure in a rotary evaporator to obtain the low-polar fraction of Artemisia grandis;
[0022] b. Dissolve and disperse 4 g of the dried Artemisia grandis low-polarity part obtained in step a, add 40 mL of water, extract 3 times with n-hexane, 40 mL each time, evaporate the n-hexane part and the water part of the raffinate to dryness respectively, The water part after evaporation was dissolved in acetonitrile, filtered, and the filtrate was evaporated to dryness to obtain the effective part of Artemisia grandis.
Embodiment 3
[0024] a. Take 100g of dried Artemisia grandis, crush it, put it in a 2L stoppered flask, put the flask into an ultrasonic extractor, and use a small polar organic solvent acetone to ultrasonically extract at room temperature for 3 times, each time 1.5L, each extraction time For 0.5h, the extracts were combined, filtered, the filtrate was distilled under reduced pressure to recover the solvent, and the concentrated solution was collected at the same time to obtain the low-polarity part of Artemisia grandis;
[0025] b. Dissolve and disperse 4 g of the dried Artemisia grandis low-polarity part obtained in step a, add 40 mL of water, extract 3 times with n-hexane, 40 mL each time, evaporate the n-hexane part and the water part of the raffinate to dryness respectively, The water part after evaporation was dissolved in acetonitrile, filtered, and the filtrate was evaporated to dryness to obtain the effective part of Artemisia grandis.
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