Natural drug extract
A technology of natural medicines and extracts, applied in the direction of drug combination, antineoplastic drugs, pharmaceutical formulations, etc.
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[0035] The first step: preparation of various extracts
[0036] (1) Preparation of concentrated extract of Andrographis lilac decoction
[0037] Take andrographis paniculata and cloves according to the compatibility ratio of 1:1, soak in distilled water, heat and decoct, filter with silk cloth, add distilled water to the dregs, soak, decoct, and filter in the same way, mix the two filtrates, heat and concentrate, and use an ultrafiltration membrane Filter, dry under reduced pressure, that is.
[0038] (2) Preparation of andrographolide
[0039] Take Andrographis paniculata powder, pre-treat with enzymatic hydrolysis, soak in ethanol, filter, recover ethanol, get extract, wash with petroleum ether, remove chlorophyll, extract the water layer with chloroform overnight, divide into water layer, chloroform layer and middle layer, The precipitate in the middle layer is recrystallized with ethanol to obtain that product.
[0040] (3) Preparation of clove ethanol extract
[0041]...
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