Natural pharmaceutical extractive, and preparation method thereof
A technology of natural medicines and extracts, used in drug combinations, pharmaceutical formulations, antitumor drugs, etc.
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[0031] The first step: preparation of various extracts
[0032] (1) Preparation of Phellodendron radish seed decoction concentrated extract
[0033] According to the compatibility ratio of 1-4:1, take Cortex Phellodendron and Radish Seed, soak in distilled water, heat and decoct, filter with silk cloth, add distilled water to the medicinal residue, soak, decoct and filter in the same way, mix the two filtrates, heat and concentrate, Ultrafiltration membrane filtration, drying under reduced pressure, that is.
[0034] (2) Preparation of Phellodendron Phellodendri Ethyl Acetate Extract
[0035] Phellodendron cortex is crushed, soaked in 95% alcohol for 3 times, combined with ethanol extract, brown extract obtained by distillation under reduced pressure, dispersed in water, extracted with water, diethyl ether and ethyl acetate in sequence, part of ethyl acetate is distilled under reduced pressure, and dried to obtain phellodendron acetic acid ethyl ester extract.
[0036] (3) ...
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