Fresh radix notoginseng extract, preparation method and medicinal prescription of fresh radix notoginseng extract
A technology of extract and Panax notoginseng, which is applied in the field of medicine, can solve the problems of great differences in the types and contents of the active ingredients of Panax notoginseng saponins, and achieve the effect of less impurities, light color and increased content
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Embodiment 1
[0059] 1) Take 200kg of fresh Panax notoginseng reed head, crush it into coarse powder particles of 6-10mm, extract with 6 times the amount of 80% ethanol under heat reflux for 6 hours, recover the ethanol until it has no alcohol smell, add water to dilute to 0.20g crude drug / ml, mix Evenly, precipitate for 12 hours, centrifuge to remove impurities, and filter. The filtrate is adsorbed by D101 macroporous resin at a flow rate of 1.2BV / H, then quickly rinsed with purified water of 1 times the volume of the resin, passed through the column to remove impurities, discarded the water, and washed with 4 times the volume of 70% ethanol The collected solution was eluted and deliquified at a flow rate of 2 BV / h until no saponin was detected by TLC. Then the eluent is decolorized by passing the eluent through the D941 resin at a flow rate of 6 liters / min, adding 2 times the amount of 70-80% ethanol to rinse the resin column at the same flow rate, combining the initial flow liquid and th...
Embodiment 2
[0075] Take 200kg of fresh Panax notoginseng main root, cut into thin slices with a thickness of 1-3mm, extract with 7 times the amount of 80% ethanol under hot reflux for 8 hours, recover the ethanol until it has no alcohol smell, add water to dilute to 0.25g crude drug / ml, mix well, and precipitate for 15 hours, centrifuge to remove impurities, and filter. The filtrate is adsorbed by D101 macroporous resin at a flow rate of 1.3BV / H, then quickly rinsed with purified water of 2 times the volume of the resin, passed through the column to remove impurities, discarded the water, and used 75% ethanol solution 4 times The collected solution was eluted at a flow rate of 3BV / h until no saponin was detected by TLC. Then pass the eluent through the D941 resin at a flow rate of 7.5 liters / min for decolorization, add 2 times the amount of 75% ethanol to rinse the resin column at the same flow rate, combine the initial flow and eluent until no saponin flows out as detected by TLC Then a...
Embodiment 3
[0079] Take 200kg of fresh Panax notoginseng main root, cut into thin slices with a thickness of 1-3mm, extract with 8 times the amount of 95% ethanol under heat reflux for 10 hours, recover the ethanol until it has no alcohol smell, add water to dilute to 0.30g crude drug / ml, mix well, and precipitate for 18 hours, centrifuge to remove impurities, and filter. The filtrate is adsorbed by D101 macroporous resin at a flow rate of 1.4BV / H, then passes through the column with purified water 3 times the volume of the resin to remove impurities, and the flow rate is 4BV / h. The collected solution was eluted at a flow rate of 4 BV / h in multiple volumes until no saponin was detected by TLC. Then the eluent is decolorized by passing the eluent through the D941 resin at a flow rate of 9 liters / min, adding 3 times the amount of 70-80% ethanol to rinse the resin column at the same flow rate, and combining the initial flow and eluent until TLC detects no Until the saponin flows out; then a...
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