Selaginella uncinata extraction, its preparation method and application
A technology of green cloud grass and extract, applied in the field of traditional Chinese medicine, can solve problems such as virus infection
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Embodiment 1
[0037] (1) Grinding 4.2 kg of the dried whole herb of Cuiyuncao, extracting 2 times with 60% ethanol Soxhlet with 8 times the weight of Cuiyuncao, each time for 1 hour, the extraction temperature is 55°C, and the extracts are combined;
[0038] (2) remove insoluble matter by filtration, dry under reduced pressure, obtain 856g of the first extract of Cuiyuncao;
[0039] (3) Get 800g of the first extract of Cuiyuncao and carry out macroporous resin open column chromatography, elute with 30% ethanol aqueous solution to obtain 500g of Cuiyuncao non-flavonoid extract, use 95% ethanol The aqueous solution was eluted to obtain 250 g of Cuiyuncao total flavonoids extract.
Embodiment 2
[0041] (1) Grinding 2.0 kg of the dried whole herb of Cuiyuncao, leaching and extracting with 20% methanol 9 times the weight of Cuiyuncao 3 times, each time for 4 hours, the extraction temperature is 25°C, and the extracts are combined;
[0042] (2) remove insoluble matter by filtration, dry under reduced pressure, obtain 382g of the first extract of Cuiyuncao;
[0043] (3) Get 330g of the first extract of Cuiyuncao and carry out macroporous resin open column chromatography, elute with 30% ethanol aqueous solution to obtain 210g of Cuiyuncao non-flavonoid extract, use 95% ethanol The aqueous solution was eluted to obtain 93 g of the total flavonoids extract of Cuiyuncao.
Embodiment 3
[0045] (1) Grinding 2.0 kg of the dried whole herb of Cuiyuncao, extracting 6 times with hydrothermal reflux of 10 times the weight of Cuiyuncao, 5 hours each time, the extraction temperature is 95°C, and the extracts are combined;
[0046] (2) remove insolubles by filtration, and dry under reduced pressure to obtain 446 g of the initial extract of Cuiyuncao;
[0047] (3) Get 400g of the first extract of Cuiyuncao and carry out macroporous resin open column chromatography, elute with 30% ethanol aqueous solution to obtain 262g of Cuiyuncao non-flavonoid extract, use 95% ethanol The aqueous solution was eluted to obtain 105 g of the total flavonoids extract of Cuiyuncao.
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