Selaginella uncinata extract as well as preparation method and application thereof
An extract, the technology of Cuiyuncao, applied in the field of Cuiyuncao extract, can solve the problems of poor enrichment selectivity and complex components of phenolic components
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Embodiment 1
[0033] Cuiyun herb 1000g, dried, crushed into coarse powder, decocted with water to extract 4 times, 1 hour each time, filtered, combined filtrate, concentrated filtrate under reduced pressure, added 95% ethanol to the concentrated solution to make the alcohol content of the liquid 45 %, stand at room temperature for 12 hours, centrifuge, take the supernatant, concentrate under reduced pressure to no alcohol, the polyamide adsorption resin that has been treated on the concentrated solution is first eluted with lower than water until the color of the eluent becomes light, Use 40% ethanol instead for elution until the phenolic acid reaction is negative, combine and collect the 40% ethanol eluted part, concentrate under reduced pressure, and dry to obtain 8.7g of Cuiyuncao extract. The total phenolic acid content in the extract is 51.7%.
Embodiment 2
[0035] Cuiyun herbal medicine 1000g, dried, crushed into coarse powder, extracted twice with 70% ethanol aqueous solution, 3 hours each time, filtered, combined filtrate, concentrated filtrate under reduced pressure, added 95% ethanol to the concentrated solution to make the alcohol content of the liquid 75%, stand at room temperature for 24 hours, filter, take the filtrate, concentrate under reduced pressure to no alcohol, and the polyamide adsorption resin that has been treated on the concentrated solution is first eluted with 15% ethanol aqueous solution until the color of the eluent becomes light , use 70% ethanol instead to elute until the phenolic acid reaction is negative, combine and collect 70% ethanol eluted parts, concentrate under reduced pressure, and dry to obtain 10.5g of Cuiyuncao extract, the total phenolic acid content in the extract was 58.9%.
Embodiment 3
[0037] Cuiyun herbal medicine is dried, crushed into coarse powder, extracted 3 times with 40% ethanol aqueous solution, 2 hours each time, filtered, combined filtrate, concentrated filtrate under reduced pressure, added 95% ethanol to the concentrated solution to make the alcohol content of the liquid 60% , stand still at room temperature for 12 hours, centrifuge, take the supernatant, concentrate under reduced pressure until there is no alcohol, and the polyamide adsorption resin that has been treated on the concentrated solution is first eluted with an aqueous ethanol solution lower than 10% until the color of the eluent is Lighten, use 60% ethanol instead to elute until the phenolic acid reaction is negative, combine and collect 60% ethanol eluted parts, concentrate under reduced pressure, and dry to obtain 8.6g of Cuiyuncao extract, the total phenols in the extract The acid content is 64.1%.
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