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315 results about "Salvianolic acid" patented technology

Salvianolic acid B, also known as satanic acid B or lithospermic acid B, is a new generation of the natural antioxidants. It can influence Ca2+ aggregation and endothelial cell NO release of hypoxia/ reoxygenation-induced cell.

Method for preparing salvianolic acid A by catalytically converting salvianolic acid B

The invention discloses a method for preparing salvianolic acid A by catalytically converting salvianolic acid B. The method is characterized in that the converted raw material is a salvia miltiorrhiza aqueous extract (salvianolic acid B=>50%) primarily purified through combined chromatography; the concentration of the raw material salvianolic acid B is 0.5-2%; urea is taken as the catalyst; the mole ratio of urea to the salvianolic acid B is 0.3-0.7; the conversion reaction temperature is 100-125 DEG C; and the reaction time is 3-6 hours. The method has the following beneficial effects: urea is taken as the catalyst, thus greatly shortening the time for which the salvianolic acid B is in easily destroyed state and remarkably increasing the yield of the salvianolic acid A; the primarily purified salvia miltiorrhiza extract is taken as the converted raw material, thus not only removing the metal ions which are not beneficial to conversion but also removing most colloid-like impurities and frontal impurities which are not beneficial to following separation of the salvianolic acid; and the directional conversion rate of the salvianolic acid B to the salvianolic acid A prepared by the method is not less than 10% and even reaches 60%.
Owner:SUZHOU LEINA PHARMA RES DEV +1

Method for extracting salvianolic acid B and hydroxysafflor Yellow A and preparation method of Danhong for injection

The invention discloses an extraction method of salvianolic acid B and hydroxy safflor yellow A as well as a preparation method of danhong for injection, and relates to the extraction method of the salvianolic acid and the hydroxy safflor yellow as well as the preparation method of the danhong preparation. The invention solves the problems that the extraction of the salvianolic acid B and the hydroxy safflor yellow A is not thorough, and the transportation and the storage of the prepared danhong injection are inconvenient. The salvianolic acid B of the invention is extracted according to the following steps: backflow, acidification and adsorption; thus the salvianolic acid B is obtained. The hydroxy safflor yellow A of the invention is extracted according to the following steps: boil out, acidification and adsorption; thus the hydroxy safflor yellow A is obtained. The danhong for injection is extracted according to the following steps: compounding ratio and standing, filtrating and lyophylization; thus the danhong for injection of the invention is obtained. The extraction rate of the salvianolic acid B and the hydroxy safflor yellow A of the invention is high, and the transportation and the storage of the prepared danhong injection are convenient.
Owner:哈药集团中药有限公司

Artificial cultivation method for increasing content of active ingredients in roots, stems and blades of red-rooted sage

The invention discloses an artificial cultivation method for increasing content of an active ingredient in roots, stems and blades of red-rooted sage. In the method disclosed by the invention, a step of spraying a mixed aqueous solution of methyl salicylate and methyl jasmonate is only added on the basis of the original conventional production and planting process, and the sprayed aqueous solution is prepared by adding 0.01-0.25g of chemically pure or industrially pure methyl salicylate and 0.015-0.40g of methyl jasmonate into 100L of water and then stirring. The method is simple to implement, the investment is less, the harvest is great, the total content of salvianolic acid ingredient in a red-rooted sage plant can be greatly increased, specifically, the total content of the salvianolicacid ingredient is increased to about 10% from about 6% and is nearly twice of the original total content of the salvianolic acid ingredient, especially the content of the salvianolic acid ingredientin the stems and blades of the red-rooted sage plant can be greatly increased, specifically, the total content of the salvianolic acid ingredients is increased to about 5% from about 1.6% and is nearly more than four times of the original total content of the salvianolic acid ingredient, thus the stems and blades of the red-rooted sage also have values in development and utilization.
Owner:SICHUAN FENGCHUN PHARMA

Control method for preparing salvianolic acid A

The invention discloses a control method for the preparation of salvianolic acid; in the method, the proper quantity of solvent is added into the salvia drinking piece or the smashed salvia to be used as the menstruum; after the extraction and the solid-liquid separation, the extracted liquid reacts at the high temperature and a high pressure; then the medical liquid is added into the chromatography column; after eluted by water, elute with the eluant; collect the high-purity salvianolic acid A solution; compress the eluant until the eluant has no organic solvent under the reduced pressure or the normal pressure; the alkali is used to adjust the pH value of the acquired solution; the solution is extracted with the chloroform or ether organic solvent; after the organic solvent are extracted, the acetic acid ester and similar organics solvents are added into the water for extraction; the medical liquid is compressed and dried with the acetic acid ester and similar organics solvents and then the salvianolic acid A product of 50 to 84 percent is gotten. Through controlling the content of the salvianolic acid A in the final extracted materials, the performance of the final extracted materials are more stable; and the invention is low in the requirements for the chemical medicine, more universal, and more suitable for the industrialization.
Owner:PHARMA RES INST OF BENCAO TIANYUAN OF BEIJING

Method for increasing contents of tanshinone and salvianolic acid in salvia miltiorrhiza hairy root by using transgene AtMYC2

The invention relates to a method for increasing the contents of tanshinone and salvianolic acid in a salvia miltiorrhiza hairy root by using a transgene AtMYC2, belonging to the technical field of gene engineering. The method comprises the steps of constructing a high-efficiency expression vector of a plant by using an arabidopsis transcription factor AtMYC2, and carrying out genetic transformation on salvia miltiorrhiza leaves to obtain a gene AtMYC2 overexpressed transgenetic salvia miltiorrhiza hairy root; analyzing the expression of AtMYC2 in the transgenetic salvia miltiorrhiza hairy root and related genes in biosynthetic pathways of tanshinone and salvianolic acid through qRT-PCR; measuring the contents of tanshinone and salvianolic acid in the transgenetic salvia miltiorrhiza hairy root by using a high-performance liquid chromatography (HPLC); and measuring the antioxidant activity of tanshinone and salvianolic acid in the transgenetic salvia miltiorrhiza hairy root by using a DPPH free radical scavenging method. The invention provides the method for simultaneously increasing the contents of tanshinone and salvianolic acid in salvia miltiorrhiza hairy root and also provides a novel high-quality raw material for producing tanshinone and salvianolic acid with important clinic demands so as to have the positive promoting significance and application value for relieving the problem that the drug resources of tanshinone and salvianolic acid are short.
Owner:SHANGHAI NORMAL UNIVERSITY

Preparation method of Salvia miltiorrhiza soft capsule

The invention provides a preparation method of a Salvia miltiorrhiza soft capsule, comprising the following steps of: completely mixing Salvia miltiorrhiza extract with glycerine and polyethylene glycol 400 so that liposoluble constituents such as tanshinone II A are dissolved in a liquid substrate so as to achieve certain solubilization and improve the biological availability of liposoluble constituents of Salvia miltiorrhiza. In the preparation process of the Salvia miltiorrhiza soft capsule, a method for preparing Salvia miltiorrhiza water-soluble component extract is provided, a macroporous resin separation technology is adopted, and ethanol solution is concentrated, atomized and dried after elution; in the obtained extract, the total salvianolic acid compounds account for more than 60% of total solid, wherein the content of salvianolic acid compound danshinolic acid B is between 45% and 60%, and the content of danshensu is controlled between 10% and 20%. The content of danshensu is controlled while the yield of salvianolic acids is improved so that the proportion of the main active ingredient danshinolic acid B is obviously improved. The preparation method is safe and efficient, low-toxic and environmentally-friendly, can satisfy the requirement of industrial production, and has wide and practical application value.
Owner:沈阳长秀医药有限公司

Medicinal composition containing general ginsenoside and total salvianolic acid and preparation method thereof

ActiveCN102100737AExpand the scope of medicinal useCardiovascular disorderPlant ingredientsRefluxSolvent
The invention provides a medicinal composition containing general ginsenoside and total salvianolic acid and a preparation method thereof. The preparation method comprises the following steps of: performing heating reflux on ginseng in 60 percent (volume/volume) of aqueous solution of ethanol, after recovering the ethanol, allowing extract to pass through macroporous adsorbent resin, eluting by using water, 20 percent (volume/volume) aqueous solution of ethanol and 60 percent (volume/volume) aqueous solution of ethanol respectively, collecting a part which is eluted by 60 percent (volume/volume) aqueous solution of ethanol, and removing solvent to obtain general ginsenoside extract; leaching root of red-rooted salvia in water by heating, adding the ethanol into the extract until the volume of the ethanol is 80 percent of that of the extract, standing, filtering, after recovering the ethanol, allowing filter liquor to pass through the macroporous adsorbent resin, eluting by using the water and 40 percent (volume/volume) of aqueous solution of ethanol, collecting a part which is eluted by 40 percent (volume/volume) of aqueous solution of ethanol, and removing the solvent to obtain total salvianolic acid extract; and mixing the general ginsenoside extract and the total salvianolic acid extract according to a weight ratio of (0.1-10):(0.1-10).
Owner:PEKING UNIV
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