Hypericum extract, its making method and medicinal composition and use for treating diabetes
A technology of St. John's wort and St. John's wort, which is applied in drug combinations, metabolic diseases, and pharmaceutical formulations, and can solve problems such as weakening sleep, increasing anesthetics to induce sleep, and not being suitable for combined use.
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Embodiment 1
[0077] Example 1. Water extract
[0078] Hypericum perforatum L. (Hypericum perforatum L.) whole herb with flowers 100g, heat reflux with 500ml of distilled water, extract three times (500ml / time), extract 1-1.5 hours each time, extract under reduced pressure and concentrate to get water extract 26.0 g, dissolved in 50ml of water, added ethanol until the alcohol content reached 70% (volume ratio), precipitated, filtered, and concentrated the filtrate to dryness to obtain 21.0 g of a yellow powdery solid.
[0079] The filtrate part is separated by macroporous resin column:
[0080] 20.0 g of the filtrate was dissolved in 100 ml of water, added to a 200 g macroporous resin column (AB-8), washed with distilled water until the effluent was colorless, then eluted with ethanol until the effluent was colorless, and the ethanol eluted part was concentrated 4.5g was obtained. The macroporous resin is washed with water until the effluent is alcohol-free (macroporous resin regeneration...
Embodiment 2
[0081] Example 2. Alcoholic extract
[0082] Hypericum perforatum (Hypericum perforatum L.) whole herb 2500g, heat reflux with 95% EtOH, extract three times (7.5 liters of 95% EtOH / time), slowly heat to boiling, extract for 1-2 hours each time, and concentrate the extract under reduced pressure Afterwards, 610.0 g of 95% EtOH extract was obtained, suspended in 1500 ml of water, filtered, and the filtrate was extracted three times with ethyl acetate (1500 ml / time), the extracts were combined, and the solvent was recovered under reduced pressure to obtain 260.0 g of a red powdery solid.
Embodiment 3
[0083] Example 3. Ethyl acetate extract
[0084] Hypericum perforatum (Hypericum perforatum L.) whole herb 1000g, heated to reflux with 5000ml of petroleum ether, extracted three times, 1 hour each time, the extract was concentrated under reduced pressure to obtain 56.0g of petroleum ether extract; 5000 ml of the ester was heated to reflux, extracted three times, each extraction was 1 hour, the extracts were combined, and the solvent was recovered under reduced pressure to obtain 65.0 g of ethyl acetate extraction fraction.
[0085] Ethyl acetate extraction part is separated by macroporous resin:
[0086] 65.0 g of the filtrate was dissolved in 1000 ml of water, filtered, and the filtrate was added to a 1000 g macroporous resin column (S-8), washed with distilled water until the effluent was colorless, then eluted with ethanol until the effluent was colorless, washed with ethanol The part was concentrated to obtain 13.0 g. The macroporous resin is washed with water until the...
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