Traditional Chinese medicine extract
A technology of extracts and natural medicines, applied in drug combinations, antineoplastic drugs, pharmaceutical formulations, etc., to achieve increased inhibitory effects, obvious synergistic effects, and good synergistic effects
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[0034] The first step: preparation of various extracts
[0035] (1) Preparation of concentrated extract of Alisma yam decocted in water
[0036] According to the compatibility ratio of 1:1 or 1-4:1, take Alisma and yam, soak in 10 times the amount of distilled water for 1 hour, heat and decoct on an electric stove with asbestos net for 1 hour, filter with silk cloth, save the filtrate, and recycle the drug residue. Add 6 times of distilled water, soak, decoct, and filter in the same way, mix the two filtrates, heat and concentrate to a small volume, filter with an ultrafiltration membrane, and dry under reduced pressure at 70°C for 36 hours in a vacuum drying oven to obtain a brown-yellow powder.
[0037] (2) Preparation of Alisalpine alcohol B acetate
[0038] Alisma coarse powder was percolated with 80% ethanol, and the ethanol was recovered to 10%, and the obtained oily extract was applied to a silica gel column, and after elution with a volume ratio of 10:1 petroleum ethe...
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