Chinese medicine active component composition and its preparing method and use
The technology of a composition and traditional Chinese medicine is applied in the application field of medicines or health care products for preventing and treating cardiovascular and cerebrovascular diseases, and can solve the problems of low phenolic acid content in extracts, unspecified phenolic acid content, large difference in proportions, and the like. The effect of high content of active ingredients, stable product quality and stable quality
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Embodiment 1
[0087] Embodiment 1: the preparation method of salvianolic acid A and salvianolic acid B and composition thereof (respectively extracting and mixing method)
[0088] The specific process steps are as follows
[0089] 1. Extraction: Take Danshen decoction pieces, add 10 times the amount of 20% ethanol, soak at room temperature for 3 hours, then heat to 80-100°C for reflux extraction for 1.5 hours, separate the first extract, add 8 times the amount of 50% ethanol, and heat Reflux extraction at 80-100°C for 1 hour, and separate the second extract. The two extracts were combined, and the solid impurities in the extract were removed by filtration.
[0090] 2. Precipitation: Concentrate the extract under reduced pressure to a relative density of 1.05 to 1.10. After cooling, add deionized water 8 times the amount of medicinal materials, refrigerate, let stand, take the supernatant, and concentrate under reduced pressure to obtain a concentrate.
[0091] 3. Separation and purificati...
Embodiment 2
[0101] Embodiment 2: the preparation method of salvianolic acid A and salvianolic acid B and composition thereof, (simultaneous extraction method)
[0102] Other parts of the method are the same as in Example 1, and the column chromatography separation and purification process is different, and the column chromatography separation and purification method is as follows:
[0103] The pre-treated AB-8 macroporous adsorption resin column on the concentrated solution, the ratio of the sample on the column to the amount of resin is 1:8 (W:W), first eluted with deionized water for 20 column bed volumes to remove impurities, and then Elute 20 column bed volumes with 20% ethanol aqueous solution to remove impurities, then elute salvianolic acid B and salvianolic acid A with about 70% ethanol aqueous solution, and monitor salvianolic acid B in the eluent with TLC during the elution process and the content changes of salvianolic acid A, combined with HPLC monitoring, until the two are co...
Embodiment 3
[0104] Embodiment 3: the selection of pH in the preparation technology of sodium salt derivative
[0105] Take 100 g of the salvianolic acid A and B raw materials obtained in the above-mentioned Example 1, dissolve them in 500 ml of water, add 0.01 to 0.5 N sodium bicarbonate solution to adjust the pH to 6, 7, 8, 9, 10, 12, and 14 respectively, and fully After stirring, centrifuge to remove insoluble matter, concentrate the solution under reduced pressure, add ethanol to the alcohol concentration of 80%, let it stand still, filter the precipitate, and dry under reduced pressure to obtain the sodium salt of salvianolic acid A plus B, calculate the weight, and measure the salvia miltiorrhiza The contents of phenolic acid A sodium salt and salvianolic acid B sodium salt are shown in Table 1.
[0106] pH
[0107] The data in Table 1 shows that the influence of pH in the preparation process of salvianolic acid A+B sodium salt derivatives is very important: pH10, the conte...
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