Application of total flavonoids from primula sikkmensis hook
A technology of bellflower primrose and total flavonoids, which is applied in the field of medicine to achieve good anti-inflammatory and analgesic effects
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Embodiment 1
[0020] Embodiment 1 The preparation of the total flavonoids of Bellflower Primrose of the present invention
[0021] Take the dried coarse powder of bellflower and primrose, add 20 times the amount of 60% ethanol to soak, heat and reflux for extraction 3 times, each time for 1 hour, filter while hot, combine the filtrate, recover under reduced pressure until there is no alcohol smell, add appropriate amount of distilled water Finally, extract with n-butanol, recover the n-butanol solution under reduced pressure until there is no n-butanol smell, add an appropriate amount of distilled water to dissolve, and after filtration, the pretreated D101 macroporous adsorption resin on the filtrate is first eluted with distilled water until no Ferric chloride reaction and magnesium hydrochloride powder reaction occur, then elute with 30% ethanol, collect the eluent until no ferric chloride reaction and magnesium hydrochloride powder reaction occur, combine the eluent, recover the solvent,...
Embodiment 2
[0023] Example 2 Screening of the preparation method of total flavonoids from Primula bellflower
[0024] 1. Determination method of total flavonoids content
[0025] 1.1 Preparation of reference solution
[0026] Take rutin reference substance 0.01006g, place it in a 50ml volumetric flask, add 60% ethanol to make it up to the mark, and prepare a reference substance solution with a concentration of 0.2012mg / ml for future use.
[0027] 1.2 Preparation of sample solution
[0028] The extract prepared according to each preparation method is transferred to a 100ml volumetric flask, and the volume is fixed to the scale, and 10ml is precisely pipetted from the solution in the 100ml volumetric flask, and the sample solution is obtained by distilling to the volume with 60% ethanol. spare.
[0029] 1.3 Determination of measurement wavelength
[0030] Precisely pipette 7ml of the reference substance solution and 2ml of the test solution, place them in two 25ml volumetric flasks resp...
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