Method for extracting and purifying Pinostrobin from medicinal plants, and pharmaceutical preparation and application thereof
A technology for medicinal plants and pharmaceutical preparations, applied in the field of life sciences, can solve the problems of excessive use of toxic solvents and cumbersome operations, and achieve the effects of efficient resource utilization, simple extraction and purification operations, and difficulty in secondary drug resistance.
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Embodiment 1
[0021] Example 1. Preparation of Condominin Extract from the Peel of Hickory Nut
[0022] Take the fresh pecan fleshy peel, put it in a homogenate extractor, add 10 times the amount of ethanol with a concentration of 90%, homogenize twice at a high speed, 1 minute each time, filter the extract, combine the filtrate, concentrate under reduced pressure and recover ethanol (60°C, 0.09Mpa) until the relative density of the extract is 1.12, let it stand still for 20 minutes, remove the supernatant, and obtain the extract whose precipitate is ballocchinin.
Embodiment 2
[0023] Example 2. Preparation of Coneconolin Extract from the Root of Saffron
[0024] Take the dried root, remove impurities, slice, add 5 times the amount of water to soak for 24 hours, then place it in a tissue homogenate extractor, add 15 times the amount of ethanol with a concentration of 90%, and homogenize at high speed for 3 times, Each time for 5 minutes, filter the extract, combine the filtrate, concentrate under reduced pressure and recover ethanol (60°C, 0.09Mpa) until the relative density of the extract is 1.15, let it stand still for 20 minutes, remove the supernatant, and obtain the extract whose precipitate is ballocchinin .
Embodiment 3
[0025] Example 3. Preparation of Condominin Extract from Oxytropis falciparum Whole Herb
[0026] Take fresh Oxytropis falciparum herb, remove impurities, cut into sections, put it in a tissue homogenate extractor, add 12 times the amount of 80% ethanol, homogenize twice at high speed, each time for 2 minutes, filter the extract, Combine the filtrates, concentrate under reduced pressure and recover ethanol (60°C, 0.09Mpa) to the relative density of the extract 1.10, let it stand still for 20 minutes, remove the supernatant, and obtain the extract whose precipitate is ballocchinin.
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