Preparation method and detection method of Stauntonia chinensis DC injection
A detection method and the technology of wild papaya are applied in the field of traditional Chinese medicine to achieve the effects of exclusive detection method, improved safety and reduced total saponin content
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Embodiment 1
[0043] Embodiment 1, wild papaya injection
[0044] Take 2500g of wild papaya, add water and decoct three times. Combine the decoctions for 2 hours each time, filter, concentrate the filtrate to 1000ml under reduced pressure, add 5000ml of ethanol, stir well, refrigerate for 24 hours, let it settle, filter, recover the ethanol from the filtrate under reduced pressure, add water to 500ml; use 6mol / L hydrochloric acid solution to adjust the pH value to 2.0, heat in a water bath at 80°C for 4 hours, refrigerate for 24 hours, let it settle, filter, adjust the pH value of the filtrate to neutral with 20% sodium hydroxide, concentrate under reduced pressure to form a thick paste , add 8 times the amount of ethanol, stir well, refrigerate for 24 hours, place to precipitate, filter, and recover ethanol from the filtrate under reduced pressure; add 500ml of water for injection, adjust the pH value to 7.5 with 8% sodium hydroxide solution, add 10g poly Sorbitate 80 and benzyl alcohol ...
Embodiment 2
[0051] Embodiment 2, wild papaya injection
[0052] Take 2500g of wild papaya, add water and decoct three times. Combine the decoctions for 2 hours each time, filter, concentrate the filtrate to 1000ml under reduced pressure, add 5000ml of ethanol, stir well, refrigerate for 24 hours, let it settle, filter, recover the ethanol from the filtrate under reduced pressure, add water to 500ml; use 6mol / Adjust the pH value to 2.0 with L hydrochloric acid solution, heat in a 60°C water bath for 4 hours, refrigerate for 24 hours, let it settle, filter, adjust the pH value of the filtrate to neutral with 20% sodium hydroxide, concentrate under reduced pressure to form a thick paste , add 8 times the amount of ethanol, stir well, refrigerate for 24 hours, place to precipitate, filter, and recover ethanol from the filtrate under reduced pressure; add 500ml of water for injection, adjust the pH value to 7.5 with 8% sodium hydroxide solution, add 10g poly Sorbitate 80 and benzyl alcohol 1...
Embodiment 3
[0054] Embodiment 3, wild papaya injection
[0055] Take 2500g of wild papaya, add water and decoct three times. Combine the decoctions for 2 hours each time, filter, concentrate the filtrate to 1000ml under reduced pressure, add 5000ml of ethanol, stir well, refrigerate for 24 hours, let it settle, filter, recover the ethanol from the filtrate under reduced pressure, add water to 500ml; use 6mol / L hydrochloric acid solution to adjust the pH value to 2.0, heat in a water bath at 70°C for 4 hours, refrigerate for 24 hours, let it settle, filter, adjust the pH value of the filtrate to neutral with 20% sodium hydroxide, concentrate under reduced pressure to form a thick paste , add 8 times the amount of ethanol, stir well, refrigerate for 24 hours, place to precipitate, filter, and recover ethanol from the filtrate under reduced pressure; add 500ml of water for injection, adjust the pH value to 7.5 with 8% sodium hydroxide solution, add 10g poly Sorbitate 80 and benzyl alcohol ...
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