Extractive of effective part of chloranthus glaber and preparation method thereof
A technology for effective parts and extracts, applied in the field of extracts from effective parts of traditional Chinese medicines, can solve the problems of high implementation difficulty, cumbersome preparation methods, inconvenience in large-scale production and the like
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Embodiment 1
[0060] Grass coral crude powder 5kg, add 10 times the amount of water, decoct 2 times, 2 hours each time, combine the decoction liquid, high-speed centrifugation of the decoction liquid, ultrafiltration of the centrifugation liquid with a polysulfone membrane with a molecular weight cut-off of 200,000, ultrafiltration Adjust the pH value of the filtrate to 1.0, put it on the HPD-100 macroporous adsorption resin column for adsorption, first elute with 2 to 3 times the column volume of water, then elute with 70% ethanol with a pH of 14.0, collect the ethanol eluate, Concentrate under reduced pressure and dry in vacuo to obtain 20.56 g of the effective part extract. In terms of rosmarinic acid, it contains 62.52% of total phenolic acids.
Embodiment 2
[0062] Grass coral crude powder 5kg, add 10 times the amount of water, decoct 2 times, 2 hours each time, combine the decoction liquid, high-speed centrifugation of the decoction liquid, ultrafiltration of the centrifugate with a cellulose acetate membrane with a molecular weight cut-off of 150,000, ultrafiltration Adjust the pH value of the filtrate to 2.0, put it on the HPD-400 macroporous adsorption resin column for adsorption, first elute with 2 to 3 times the column volume of water, then elute with 50% ethanol with a pH of 10.0, collect the ethanol eluate, Concentrate under reduced pressure and dry in vacuum to obtain the effective part extract. In terms of rosmarinic acid, it is 18.25g, which contains 59.11% of total phenolic acids.
Embodiment 3
[0064] Grass coral crude powder 5kg, add 10 times the amount of water, decoct 2 times, 2 hours each time, combine the decoction liquid, high-speed centrifugation of the decoction liquid, ultrafiltration of the centrifugate with a polytetrafluoroethylene membrane with a molecular weight cut-off of 20,000 , adjust the pH value of the ultrafiltrate to 4.0, put it on the HPD-500 macroporous adsorption resin column for adsorption, first elute with 2 to 3 times the column volume of water, then elute with 30% ethanol with a pH of 11.0, and collect the ethanol to elute solution, concentrated under reduced pressure, and dried in vacuum to obtain 16.85 g of the effective part extract. In terms of rosmarinic acid, it contains 58.12% of total phenolic acids.
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