Belladonna extract and preparation method thereof
The technology of belladonna extract and pH value, which is applied in the field of medicine, can solve the problems of increasing production cost, not green and environmental protection, waste of resources and the like, and achieves the effects of good drug efficacy, broad economic benefits and simple operation.
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Embodiment 1
[0030] The preparation method of belladonna extract is as follows:
[0031] 1) Weigh 1 kg of belladonna coarse powder, use ethanol with a mass percentage concentration of 85% as a solvent, first soak belladonna coarse powder with ethanol for 48 hours, and stir constantly to improve uniformity; then use 1-3ml / min speed Slowly percolate until the scopolamine alkaloids are gradually and completely leached out to obtain the initial eluent and collect it. The ethanol is recovered from the initial eluent at 60°C under reduced pressure. After cooling to room temperature, filter and evaporate the obtained filtrate to obtain the first thick paste ;
[0032]2) After the filtration operation, the remaining residue, that is, "chlorophyll" waste, is first diluted with water to obtain a liquid medicine, and then the dilute sulfuric acid solution is added while stirring continuously and its pH value is checked. When the pH value is acidic, the neutralization operation can be stopped , let i...
Embodiment 2
[0035] The preparation method of belladonna extract is as follows:
[0036] 1) Weigh 1 kg of belladonna coarse powder, use ethanol with a mass percentage concentration of 88% as a solvent, soak the belladonna coarse powder with ethanol for 48 hours, and keep stirring to improve the uniformity; then with a speed of 1-3ml / min Slowly percolate, after the scopolamine alkaloids are gradually leached out, the first eluent is obtained and collected, and the ethanol is recovered from the initial eluent at 60°C under reduced pressure, cooled to room temperature, filtered and the obtained filtrate is evaporated and concentrated at 70°C , add 10 times the mass of ethanol, stir evenly and percolate slowly at a rate of 1-3ml / min, obtain the filtrate and collect it, recover the ethanol under reduced pressure at 60°C, cool to room temperature, filter and obtain The filtrate was evaporated and concentrated at 70°C to obtain the first thick paste;
[0037] 2) After the filtration operation, t...
Embodiment 3
[0040] The preparation method of belladonna extract is as follows:
[0041] 1) Weigh 1 kg of belladonna coarse powder, use ethanol with a mass percentage concentration of 87% as a solvent, first soak belladonna coarse powder with ethanol for 48 hours, and keep stirring to improve uniformity; then use 1-3ml / min speed Slowly percolate, after the scopolamine alkaloids are gradually leached out, the first eluent is obtained and collected, and the ethanol is recovered from the initial eluent at 60°C under reduced pressure, cooled to room temperature, filtered and the obtained filtrate is evaporated and concentrated at 60°C , add 10 times the mass of ethanol, stir evenly and percolate slowly at a rate of 1-3ml / min, obtain the filtrate and collect it, recover the ethanol from the filtrate at 60°C under reduced pressure, cool to room temperature, and then add ethanol solvent After repeated percolation once in this way, finally filter and evaporate and concentrate the obtained filtrate...
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