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A consecutive preparation method for the isolation and purification of paclitaxel from the Taxus Chinensis cell culture was developed in this study. The process involved alkaline Al2O3 chromatography, fractional precipitation, and high‐speed countercurrent chromatography. The original cell culture materials were first extracted with methanol using ultrasound‐assisted extraction, and then the extract...
A method of ultrasonic‐assisted extraction followed by high‐speed countercurrent chromatography was established for the extraction and isolation of three flavonoid glycosides, i.e. rutin, narcissin, and nicotiflorin from Flos Sophorae Immaturus. The effects of ultrasonic‐assisted extraction factors for the main flavonoid compound (rutin) from Flos Sophorae Immaturus were optimized using Box–Behnken...
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