Application of Dipsacus total saponins in preparation of tocolytic drugs
A technology for total saponins and medicines is applied in the application field of interrupted total saponins in the preparation of tocolytic medicines, and can solve the problems of inability to safely and effectively prevent spontaneous abortion, limitations and side effects.
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[0070] 2.1 Preparation of experimental drugs
[0071] 2.1.1 Preparation of Dipsacus total extract and Dipsacus total saponins
[0072] 3.5 kg of Dipsacus were dried, chopped, processed into granules by a pulverizer, and extracted three times by reflux of 6 times 75% ethanol (2 hours, 1.5hr and 1.5hr respectively). After filtration, the three filtrates were combined, concentrated under reduced pressure by a rotary evaporator to remove ethanol, and concentrated to about 1500 mL alcohol-free Dipsacus ethanol extract. Concentration conditions under reduced pressure: the concentration temperature range is 55°C-60°C, the concentration speed is 70rpm / min, and the vacuum degree is less than 0.1 Mpa.
[0073] The alcohol extract of Dipsacaceae was applied to HP-20 macroporous resin column (Diaion HP-20, Mitsubishi Chemical Co., Ltd., Japan, 100 mm in diameter, 1 m in height), first eluted with double distilled water until it was nearly colorless, and then 8 L of 95% ethanol Carry out...
Embodiment 1
[0236] Example 1: Preparation of Dipsacus total saponins
[0237] 3.5kg of Dipsacus were dried, chopped, processed into granules by a pulverizer, and refluxed and extracted with 6 times (weight / volume ratio) 75% ethanol three times (2 hours, 1.5hr and 1.5hr respectively). After filtration, the three filtrates were combined, concentrated under reduced pressure by a rotary evaporator to remove ethanol, and concentrated to about 1500 mL alcohol-free Dipsacus ethanol extract. Concentration conditions under reduced pressure: the concentration temperature range is 55°C-60°C, the concentration speed is 70 rpm (revolutions per minute), and the vacuum degree is less than 0.1 Mpa.
[0238] The alcohol extract of Dipsacaceae was applied to HP-20 macroporous resin column (Diaion HP-20, Mitsubishi Chemical Co., Ltd., Japan, 100 mm in diameter, 1 m in height), first eluted with double distilled water until it was nearly colorless, and then 8 L of 95% ethanol Carry out elution, collect 95% ...
Embodiment 2
[0240] Embodiment two: the preparation of the total saponins of Radix Dipsaceae
[0241] 3.5kg of Dipsacus were dried, chopped, processed into granules by a pulverizer, and extracted three times by 5 times (weight / volume ratio) 75% ethanol reflux (2 hours, 1.5hr and 1.5hr respectively). After filtration, the three filtrates were combined, concentrated under reduced pressure by a rotary evaporator to remove ethanol, and concentrated to about 1500 mL alcohol-free Dipsacus ethanol extract. Concentration conditions under reduced pressure: the concentration temperature range is 55°C, the concentration speed is 70 rpm (revolutions per minute), and the vacuum degree is less than 0.1 Mpa.
[0242] The alcohol extract of Dipsacaceae was applied to HP-20 macroporous resin column (Diaion HP-20, Mitsubishi Chemical Co., Ltd., Japan, 100 mm in diameter, 1 m in height), first eluted with double distilled water until it was nearly colorless, and then 8 L of 95% ethanol Carry out elution, co...
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