Method for preparing greater celandine extract with anticancer action
A celandine and extract technology, which can be used in medical preparations containing active ingredients, anti-inflammatory agents, organic chemistry, etc., can solve the problem of small analgesic effects, small adverse reactions, limited clinical application, and poor treatment for cancer pain patients. and other problems, to achieve the exact effect of curative effect
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Embodiment 1
[0016] The preparation of embodiment 1 celandine extract
[0017] Get 3500g of celandine, cut into 0.5cm sections, add 10 times the amount of 75% ethanol, heat and reflux extraction 4 times, each time for 1.5 hours, combine the alcohol extracts, recover ethanol under reduced pressure and concentrate to a relative density of 1.12, use Adjust the pH value of 1mol / L phosphoric acid solution to 3.5, refrigerate at 5°C for 72 hours, filter, adjust the pH value of the filtrate to 11 with 30% sodium hydroxide solution, extract 5 times with an equal amount of chloroform, combine the chloroform solution, and recover the chloroform, The residue was vacuum-dried to obtain the obtained product.
Embodiment 2
[0018] Example 2 Preparation of Celandine Extract Powder Injection
[0019] Embodiment 1 celandine extract 8 grams
[0020] Mannitol 25g
[0021] Take the celandine extract of Example 1, put it in a suitable container, add about 800ml of water for injection, adjust the pH value to 3.2 with 1.2mol / L phosphoric acid solution, filter, add mannitol to the filtrate and stir evenly, then add water for injection to 1000ml , mixed evenly, filtered with a 0.22um microporous membrane, and the filtrate was filled in vials under sterile conditions, partially plugged with butyl rubber stoppers, packed into plates, and freeze-dried. After the freeze-drying is finished, stoppering and capping are ready.
Embodiment 3
[0022] Example 3 Preparation of Celandine Extract Injection
[0023] Embodiment 1 Celandine extract 14g
[0024] Tween-80 10ml
[0026] Benzyl alcohol 8ml
[0027] Add water for injection to 1000ml.
[0028] Get the celandine extract of Example 1, add 800ml of water for injection, stir to dissolve, adjust the pH value to 3.5 with 1mol / L phosphoric acid solution, filter, add Tween-80, benzyl alcohol, sodium chloride to the filtrate, mix Evenly, filter with a microporous membrane, add water for injection to 1000ml, fill and sterilize, to obtain.
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