Preparation method of andrographis paniculata freeze-dried preparation
A freeze-dried preparation, the technology of Chuanxinlian, which is applied in the field of preparation of the freeze-dried preparation of the extract of the traditional Chinese medicine Chuanxinlian, can solve problems such as adverse reactions, affecting clarity, and complex components
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[0006] Example 1: Take 1000 g of Chuanxinlian, add 20 L, 18 L, and 18 L of 60% ethanol to reflux for extraction for 90 minutes, combine the filtrates, and recover the ethanol to make a liquid extract. Then add absolute ethanol to make the alcohol content reach 80%, let the liquid stand for a while, filter, add 1% activated carbon to the filtrate, and stir for 30 minutes. Perform the following operations on the ultra-clean workbench: first filter out activated carbon with sterilized filter paper, and now filter with a sterilized G4 funnel, recover ethanol from the filtrate and concentrate it to 350ml under reduced pressure; add an appropriate amount of solubilizer and mix well , add water for injection to make up to 500ml crude drug content, subpackage 2ml / bottle, add rubber stopper, freeze-dry in a freeze dryer, press cap, label, pack, and get ready.
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