Southernwood total flavone, method for preparing its composition and medicine uses thereof
The technology of total flavonoids and compositions is applied in the field of preparation of total flavonoids of Artemisia annua and compositions thereof, which can solve the problems such as the preparation method and medicinal use of total flavonoids of Artemisia annua, which have not been seen yet, and achieve remarkable pharmacological activity and production cost. Low, process stable effect
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Embodiment 1
[0019] Preparation of total flavonoids of Artemisia annua: take 1 kg of Artemisia annua medicinal material and crush it into 20 mesh coarse powder, add 60% ethanol aqueous solution of 6 times the weight of medicinal material, heat and reflux for extraction twice, each time for 1.5 hours, filter, combine extracts, and decompress Recover the solvent to 1g crude drug / mL. Pass the concentrated solution through the activated D141 macroporous resin column, so that the flavonoids in the liquid are absorbed by the resin column, discard the effluent, wash with distilled water of 3 times the column volume, discard the effluent, and continue to use 95 % ethanol to elute the resin column until the flavonoids adsorbed on it are completely eluted, and the eluate is collected and dried under reduced pressure to obtain 25.3 g of tan powder of total flavonoids of Artemisia annua.
Embodiment 2
[0021] Preparation of the total flavonoids of Artemisia annua: Take 1 kg of the remaining medicinal residues of artemisinin extracted from Artemisia annua, add 8 times the weight of medicinal materials in 70% ethanol aqueous solution, heat and reflux for 3 times, each time for 1.0 hour, filter, combine the extracts, Recover the solvent under reduced pressure to 1 g crude drug / mL. Pass the concentrated solution through the activated D101 macroporous resin column, so that the flavonoids in the liquid are absorbed by the resin column, discard the effluent, rinse with distilled water of 3 times the column volume, discard the effluent, and continue to use 95 % ethanol to elute the resin column until the flavonoid components adsorbed on it are completely eluted, and the eluate is collected and dried under reduced pressure to obtain 23.7 g of yellow-brown total flavonoid powder of Artemisia annua. The D101 macroporous resin described in this example can also be replaced by other non-...
Embodiment 3
[0023] Preparation of total flavonoids of Artemisia annua: take 1 kg of Artemisia annua and crush it into 40-mesh powder, add 60% ethanol 10 times the weight of the medicinal material, ultrasonically extract 3 times, 20 min each time, filter, combine the extracts, and recover the solvent to 1 g under reduced pressure Crude drug / mL. Add 1 / 2 of ethyl acetate to the concentrated solution, shake the two phases fully for extraction, extract 3 times, collect the ethyl acetate solution, dry under reduced pressure to obtain tan powder of total flavonoids of Artemisia annua 12.5g.
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Abstract
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Application Information
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