Use of polygonin for preparing product for resisting dementia
A technology of polydipside and product, which is applied in the fields of medicine and food technology, can solve the problems of poor sales growth, undiscovered polydipside, restricting market development, etc., and achieves the effect of significant social benefits.
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[0371] (1) preparation method of Polygonum cuspidatum extract polydatin
[0372] In order to further illustrate the method for extracting polydatin from Polygonum cuspidatum extract, the following examples are used to illustrate.
[0373] For example, the preparation method of the said Polygonum cuspidatum extract of the present invention can be:
[0374] (1) Extraction: grind the medicinal material of Polygonum cuspidatum into coarse powder as usual, extract by percolation with 10-95% ethanol, and collect the percolation liquid of 5-30 times the volume of the medicinal material, which is the extract.
[0375] Or: thermally extract the pulverized Polygonum cuspidatum medicinal material with 20-95% ethanol as usual, and the volume volume of the solvent medium is about 4-8 times that of the crude drug for the first time; About 4 to 12 times of the crude drug; get the extract; filter and concentrate the extract, centrifuge or filter the concentrate;
[0376] (2) Separation and ...
Embodiment 1
[0388] Embodiment 1, preparation method one of polydatin
[0389] 10Kg of traditional Chinese medicine Polygonum cuspidatum purchased from Shanghai Medicinal Materials Company was extracted three times by percolation with 60% acetone, concentrated and evaporated to remove acetone, precipitated, and filtered to remove most of the fat-soluble substances. After the remaining part is concentrated to an appropriate volume, add water to precipitate part of the fat-soluble substances. After concentration to a small volume, it is subjected to MCIgel CHP20P column chromatography in several times. or ethanol) for elution, the eluents were combined, recovered until there was no alcohol smell, placed for crystallization, and polydatin was obtained. Chemical property analysis and spectral analysis (mainly UV spectrum, infrared spectrum, mass spectrum, hydrogen nuclear magnetic resonance spectrum and carbon spectrum) determine the structure. And then eluted with 80%~100% methanol to remove...
Embodiment 2
[0390] Embodiment 2, preparation method two of polydatin
[0391] 10Kg of traditional Chinese medicine Polygonum cuspidatum purchased from Shanghai Medicinal Materials Company was extracted three times by percolation with 60% acetone, concentrated and evaporated to remove acetone, precipitated, and filtered to remove most of the fat-soluble substances. After the remaining part is concentrated to an appropriate volume, water is added to precipitate part of the fat-soluble substances. After concentration to a small volume, the polyamide column chromatography is applied to the polyamide column, firstly eluted with water, and then eluted with 10-60% methanol (or ethanol) , and the eluents were combined, recovered until there was no alcohol smell, placed for crystallization, and polydatin was obtained. Chemical property analysis and spectral analysis (mainly UV spectrum, infrared spectrum, mass spectrum, hydrogen nuclear magnetic resonance spectrum and carbon spectrum) determine th...
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