Preparation method for traditional Chinese medicinal pubescent holly root injection
A technology of holly holly and injection, which is applied in the direction of pharmaceutical formulations, medical preparations containing active ingredients, drug delivery, etc., and can solve problems such as unstable quality and poor clarity
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Embodiment 1
[0009] Take 1000g of holly holly, after net selection and washing, add water and decoct three times, the first time for 2 hours, the second and third times for 1 hour each, combine, ultrafiltration (molecular weight cut-off is 30000~50000), and the ultrafiltrate is concentrated under reduced pressure to The relative density is 1.15~1.18 (50°C), combined, add ethanol to make the alcohol content reach 70%, stir evenly, store in refrigerator for 24 hours, filter, recover ethanol from the filtrate under reduced pressure, let cool to room temperature, add water for injection to relative density The density is 1.05, stir evenly, adjust the pH value to 2.5 with hydrochloric acid solution, let it stand for precipitation, filter, adjust the pH value of the filtrate to 6.0 with sodium hydroxide solution, keep it refrigerated for 12 hours, filter, and concentrate the filtrate to a relative density under reduced pressure About 1.20~1.23 (50°C), add ethanol to make the alcohol content reach...
Embodiment 2
[0011] Take 1000g of holly holly, after cleaning and washing, add water and decoct three times, the first time for 3 hours, the second and third times for 1.5 hours each, combine, ultrafiltration (molecular weight cut-off is 30000~50000), and the ultrafiltrate is concentrated under reduced pressure to The relative density is 1.15~1.18 (50°C), combined, add ethanol to make the alcohol content reach 70%, stir evenly, keep in refrigerator for 48 hours, filter, recover ethanol from the filtrate under reduced pressure, let cool to room temperature, add water for injection to relative density The density is 1.08, stir evenly, adjust the pH value to 2 with 10% hydrochloric acid solution, let it stand for precipitation, filter, adjust the pH value of the filtrate to 6.5 with 20% sodium hydroxide solution, place it in refrigeration for 12 hours, filter, and decompress the filtrate Concentrate to a relative density of about 1.20-1.23 (50°C), add ethanol to make the alcohol content reach ...
Embodiment 3
[0013] Get 500kg of holly holly, after cleaning and washing, add water and decoct three times, for the first time for 2 hours, for the second and third times for 1 hour respectively, combine, ultrafilter (molecular weight cut-off is 30000~50000), and the ultrafiltrate is concentrated under reduced pressure to The relative density is 1.15~1.18 (50°C), combined, add ethanol to make the alcohol content reach 70%, stir evenly, keep in refrigerator for 48 hours, filter, recover ethanol from the filtrate under reduced pressure, let cool to room temperature, add water for injection to relative density The density is 1.05, stir evenly, adjust the pH value to 2 with 10% hydrochloric acid solution, let it stand for precipitation, filter, adjust the pH value of the filtrate to 6.0 with 20% sodium hydroxide solution, place it in refrigeration for 12 hours, filter, and decompress the filtrate Concentrate to a relative density of about 1.20-1.23 (50°C), add ethanol to make the alcohol conten...
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