A method for extracting and separating six dihydrotriphenylene alkaloids from Xiaoguoboluohui
A technology of dihydrotriphenanthridine and small fruit bob fallback, applied in the direction of organic chemistry, can solve the problems of complex chemical components, difficult separation of active components, and few separations of high-purity alkaloids, so as to improve resource utilization Utilization, extraction and separation efficiency are high
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[0040] Extraction: fresh small fruits falling back to the stems and leaves (moisture content about 76.33%) are chopped, extracted with 800L 95% ethanol at room temperature for 60h, filtered to obtain the ethanol extract, and the solvent is recovered under reduced pressure at 40°C (the ethanol concentration is about was 72%) to obtain an aqueous solution (about 45 L), and the residue was refluxed at 80° C. for 2 hours to obtain a refluxed extract, which was concentrated under reduced pressure at 60° C. to obtain 3 kg of extract.
[0041] Enrichment: add an equal amount of silica gel (3kg, 100-200 mesh) to the extract, stir, and mix into a powder. First, add about 7.5L of petroleum ether, stir well, and then let it stand for 20min. Collect the supernatant, 50 ℃ for recovery under reduced pressure, and the recovered petroleum ether was extracted again, adding 2.5 L of petroleum ether each time, and extracted for a total of 10 times until the color of the extraction solution was li...
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