Method for preparing morroniside
A technology of morroniside and cornus officinalis, which is applied in the field of raw drug preparation, can solve problems such as high production and preparation costs, poor stability of morroniside, and hindered use and promotion, and achieve low product cost, small solvent consumption, and shortened heating time Effect
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[0033]1) Take 2 kg of Cornus officinalis, crush it into coarse parts (20 meshes), use 70% methanol (the volume ratio of water to alcohol is 30:70) as solvent, and extract by percolation, the specific method is: put the cornus officinalis in In a sealed container, add the solvent methanol and infiltrate for 2 hours to make the dogwood fully swell, and put it into the percolator with multi-layer gauze at the bottom evenly, and press it with a wooden stick after each installation. Cover the dogwood with gauze and press a heavy object, open the switch of the lower port of the percolator, and then slowly add 70% methanol from the upper part of the percolator, when the liquid starts to flow out from the lower port, turn off the switch and keep the upper liquid level high Leave the drug surface 5 cm away, then cover and place it for 24 hours, open the switch at the lower port, let the percolate flow out slowly, collect 6L percolate, and obtain the extract of Cornus officinalis;
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