Medicine for relieving cough and asthma and preparation method thereof
A technology for relieving cough, relieving asthma and medicine, applied in the field of Chinese patent medicine, can solve the problems of poor quality controllability, large dosage of medicine, mixed active substances and non-active substances, etc., and achieves the effect of excellent medicine effect and reduced dosage.
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Embodiment 1
[0051] 1. Preparation of ephedra total alkaloid extract and bitter almond extract
[0052] 1. Preparation of Ephedra total alkaloid extract:
[0053] 1.1 Take 1000g of ephedra coarse powder, add 4000mL of 95% ethanol solution containing 0.01mol / L hydrochloric acid; 1 g of ephedra coarse powder;
[0054] 1.2 After adjusting the pH value to 12, add sodium chloride to saturation;
[0055] 1.3 Add 2 times the volume of ethyl acetate for extraction, centrifuge at 3000r / min for 20min, statically separate the layers, take the ethyl acetate layer, repeat the extraction 3 times, and combine the ethyl acetate extracts;
[0056] 1.4 Add concentrated hydrochloric acid to adjust the pH to 2;
[0057] 1.5 Recover the solvent under reduced pressure, and dry it in vacuum to obtain the product.
[0058] 2. Preparation of bitter almond extract:
[0059] 2.1 Take 1000g of bitter almond coarse powder, add 4000mL of 95% ethanol, heat and reflux for extraction for 0.5h, first discard the lower...
Embodiment 2
[0093] 1. Preparation of ephedra total alkaloid extract and bitter almond extract
[0094] 1. Preparation of Ephedra total alkaloid extract:
[0095] 1.1 Take 1000g of ephedra coarse powder, add 4000mL of 95% ethanol solution containing 0.001mol / L hydrochloric acid; soak at room temperature for 12h, heat and reflux extraction for 3 times, each time for 1.5h, filter, and concentrate the filtrate under reduced pressure to the equivalent of 1g per mL Ephedra meal;
[0096] 1.2 After adjusting the pH value to 12, add sodium chloride to saturation;
[0097] 1.3 Add 2 times the volume of ethyl acetate for extraction, centrifuge at 3000r / min for 20min, static layer, take the ethyl acetate layer, repeat the extraction 4 times, and combine the ethyl acetate extract;
[0098] 1.4 Add concentrated hydrochloric acid to adjust the pH to 2;
[0099] 1.5 Recover the solvent under reduced pressure, and dry it in vacuum to obtain the product.
[0100] The ephedra total alkaloid extract was...
Embodiment 3
[0113] 1. Preparation of ephedra total alkaloid extract and bitter almond extract
[0114] 1. Preparation of Ephedra total alkaloid extract:
[0115] 1.1 Take 1000g of ephedra coarse powder, add 6000mL of 95% ethanol solution containing 0.01mol / L hydrochloric acid; soak at room temperature for 12h, heat and reflux extraction 3 times, each time for 1.5h, filter, and concentrate the filtrate under reduced pressure to the equivalent of 1g per mL Ephedra meal;
[0116] 1.2 After adjusting the pH value to 12, add sodium chloride to saturation;
[0117] 1.3 Add 4 times the volume of ethyl acetate for extraction, centrifuge at 3000r / min for 20min, static layer, take the ethyl acetate layer, repeat the extraction 3 times, and combine the ethyl acetate extract;
[0118] 1.4 Add concentrated hydrochloric acid to adjust the pH to 2;
[0119] 1.5 Recover the solvent under reduced pressure, and dry it in vacuum to obtain the product.
[0120] The ephedra total alkaloid extract was anal...
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