Method for extracting flavonoid glycoside compounds from dried fruits of sinopodophyllum hexandrum and application of flavonoid glycoside compounds
A technology of flavonoid glycosides and compounds, applied in the field of medicine, can solve the problems of no patents or literature reports on biological activity, and achieve the effects of significant economic and social benefits, abundant raw materials, and easy preparation methods.
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Embodiment 1
[0021] A method for extracting flavonoid glycosides from Lotus japonicus according to the present invention, using 9 kg of lotus japonicus medicinal material as raw material, heating and refluxing 3 times with 18 L of ethanol with a volume ratio of 95%, the extraction temperature is 95°C, and the extraction time is After 1.5 hours, ethanol was recovered under reduced pressure to obtain extract-like ethanol extract, which was suspended in 3.2L of distilled water, and extracted 3 times with petroleum ether, dichloromethane, ethyl acetate, and n-butanol successively, 3.2L each time, The time is 1.5 hours; the ethyl acetate extraction part is preliminarily separated by silica gel column chromatography, and the volume ratio is 100:0, 100:5, 100:7, 100:10, 100:30, 100:50, 100:70 , 100:100, 100:200, 0:100 petroleum ether-acetone mixed solvent system for gradient elution, each gradient uses 13L eluent, and the flow rate is 15mLmin -1 , every 500ml volume is a fraction, collect 260 fra...
Embodiment 2
[0023]A method for extracting flavonoid glycosides from Lotus japonicus according to the present invention, using 6 kg of lotus japonicus medicinal material as raw material, heating and refluxing 3 times with 30 L of ethanol with a volume ratio of 75%, the extraction temperature is 90° C., and the extraction time is For 2 hours, ethanol was recovered under reduced pressure to obtain extract-like ethanol extract, which was suspended in 2L of distilled water, and extracted three times with petroleum ether, dichloromethane, ethyl acetate, and n-butanol in sequence, 2L each time, for 2 hours; Preliminary separation of ethyl acetate extraction parts by silica gel column chromatography, followed by volume ratios of 100:0, 100:5, 100:7, 100:10, 100:30, 100:50, 100:70, 100 :100, 100:200, 0:100 petroleum ether-acetone mixed solvent system for gradient elution, each gradient uses 9.1L eluent, the flow rate is 10 mLmin -1 , each volume of 350ml is a fraction, collect 260 fractions, and e...
Embodiment 3
[0025] A method for extracting flavonoid glycosides from Lotus japonicus according to the present invention, using 8 kg of lotus japonicus medicinal material as raw material, heating and refluxing 3 times with 24 L of ethanol with a volume ratio of 85%, the extraction temperature is 92° C., and the extraction time each time is After 1.5 hours, ethanol was recovered under reduced pressure to obtain extract-like ethanol extract, which was suspended in 2.8L of distilled water, and then extracted three times with petroleum ether, dichloromethane, ethyl acetate, and n-butanol, each time 2.8L, The time is 1.5 hours; the ethyl acetate extraction part is preliminarily separated by silica gel column chromatography, and the volume ratio is 100:0, 100:5, 100:7, 100:10, 100:30, 100:50, 100:70 , 100:100, 100:200, 0:100 petroleum ether-acetone mixed solvent system for gradient elution, each gradient uses 11.7L eluent, and the flow rate is 13 mLmin -1 , each 450ml volume is a fraction, colle...
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