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142 results about "Hyodeoxycholic acid" patented technology

Hyodeoxycholic acid, also known as 3α,6α-Dihydroxy-5β-cholan-24-oic acid or HDCA, is a secondary bile acid, one of the metabolic byproducts of intestinal bacteria. It differs from deoxycholic acid in that the 6α-hydroxyl is in the 12 position in the former. The 6α-hydroxyl group makes HDCA a hydrophilic acid, a property it shares with hyocholic acid. HDCA is present in mammalian species in different proportions. It is the main acid constituent of hog bile, and for this reason it was used industrially as precursor for steroid synthesis before total synthesis became practical.

Method for preparing chenodeoxycholic acid

The invention relates to a method of distilling the chenodeoxychoilc acid from the offcuts which be gained by distilling the bilirubin from the bile of the pig. With the offcuts of the alkali saponification, the deposit is treated with the oxidation treatment by means of the hydrogen peroxide, the filtrate is treated by the dilute sulfuric acid and decolored by means of the active carbon and solved, crystaled using the ethyl acetate again and again; the coordinate production of the hyodeoxycholic acid is purified, the mother liquor is concentrated to the cream and melted using the alkali and have the salifying treatment with the chloride of barium, so the cholate is formed, the cholate is treated to take off barium when the cholate suspending the aqueous solution containing the sodium carbonate, then it is acidificated with the dilute sulfuric acid and is separated ,deposited and dried to gain the crude chenodeoxycholic acid which is decolored using the active carbon and is melted, rimed and dried using the ethyl acetate. Then the finished production of the chenodeoxycholic acid form.The whole technics has some merits of the abundant material, the amity of the environment, the safety and innocuity, producing many outputs from the single stuff and easy to the mass production. The invention is used for distilling the chenodeoxycholic acid.
Owner:CHANGDE YUNGANG BIOTECHNOLOGY CO LTD

Preparation method of high-purity hyodeoxycholic acid

The invention discloses a preparation method of high-purity hyodeoxycholic acid. The preparation method comprises the steps: weighing raw materials, adding strong alkaline and water, saponifying at the temperature of 95-100 DEG C for 16-24h, cooling to room temperature, standing, siphoning to remove a supernatant liquid, adding water into paste in the lower layer, stirring for dissolving the paste, adding strong acid to acidize until a congo red test paper turns to be blue, adding ethyl acetate, stirring for extracting for 20-50min, standing for layering, removing a water phase, adding water into the ethyl acetate to wash until the pH value of the water phase is equal to 6-7, adding the ethyl acetate into anhydrous sodium sulfate to dehydrate, carrying out activated carbon decoloration, filtering, concentrating until precipitates are separated out, cooling, filtering or squeezing and drying in vacuum; adding an alcohol solvent, stirring for dissolving the above product, slowly adding an alkaline organic solvent, stirring, cooling, separating out a great number of precipitates, filtering and drying; and adding water and sodium hydroxide, stirring for dissolving, dropwise adding hydrochloric acid with a volume concentration of 1:1, stirring, filtering and drying to obtain the hyodeoxycholic acid. The invention aims to provide the preparation method of the hyodeoxycholic acid with simple process, high yield and high purity.
Owner:ZHONGSHAN BAILING BIOTECHNOLOGY CO LTD

Method for extracting hyodeoxycholic acid from pig bile

The invention discloses a method for extracting hyodeoxycholic acid from pig bile, which comprises the following steps: diluting the pig bile, adding sodium hydroxide to perform the saponification reaction and removing yellowish-brown supernatant; adding hydrogen peroxide to carry out decoloring; regulating pH, heating to the temperature of 50 DEG C, adding magnesium salt solution, stirring, crystallizing, filtering and collecting solid; adding sodium carbonate into the solid, stirring to enable the solid to be dissolved, filtering and collecting filtrate; and adding dilute sulphuric acid into the filtrate to regulate pH to 3, carrying out filter pressing, washing a filter cake to pH of 6 to 7, drying and grinding to obtain a hyodeoxycholic acid pure product. According to the invention, the method adopts inorganic salt and magnesium salt to crystallize and separate the hyodeoxycholic acid without adopting an organic solvent to carry out extraction; the use quantity of the magnesium salt is 0.15 time of mass of the pig bile; the use quantity of the solvent is small; cost is low; quality of the hyodeoxycholic acid is prevented from being influenced due to volatilization of the organic solvent; pollution to the environment, which is caused by the organic solvent, is avoided; the method has a simple process and few operating steps and the reaction conditions of each step is easy to control; and the purity of the hyodeoxycholic acid can reach over 99 percent.
Owner:SICHUAN DAXIONG BIOTECH

Quality detection method for liver protection dropping pill of traditional Chinese medicine preparation

The invention relates to a quality detection method for a liver protection dropping pill of traditional Chinese medicine preparation. The quality detection method comprises the following steps: measuring the content of effective components of the liver protection dropping pill, including saikoside a and schizandrin, and identifying schisandra chinensis, pulvis fellis suis and artemisia capillaris in the liver protection dropping pill. The quality detection method also comprises the following detection steps: (1) with the saikoside a as a reference substance, measuring whether a radix bupleuri component is contained in a liver protection dropping pill recipe by adopting a high efficiency liquid chromatography method; (2) with the schizandrin as the reference substance, measuring whether a schizandrin component is contained in the liver protection dropping pill by adopting the high efficiency liquid chromatography method; (3) with the schisandrin b as the reference substance, identifying whether a schisandra chinensis component is contained in the liver protection dropping pill by adopting a thin-layer chromatography method; (4) with hyodeoxycholic acid as the reference substance, identifying whether a pulvis fellis suis component is contained in the liver protection dropping pill by adopting the thin-layer chromatography method; and (5) with chlorogenic acid as the reference substance, identifying whether an artemisia capillaris component is contained in the liver protection dropping pill by adopting the thin-layer chromatography method. The quality detection method disclosed by the invention can be used for effectively and reliably controlling the quality of the liver protection dropping pill, and the method is scientific, feasible and reliable.
Owner:HEILONGJIANG KUIHUA PHARMA

Qingkailing suppositorium

The invention discloses a Qingkailing suppository, relates to a Chinese medicine compound preparation, the raw materials of which mainly come from plants and animals, in particular to a novel formulation of Qingkailing preparation. The Qingkailing suppository provided by the invention for supplying rectum with medicine adopts the following components of cholic acid, hyodeoxycholic acid, baicalin, buffalo horn, the hydrolysate of mother-of-pearl, gardenia, banlangen, the water purified extract of honeysuckle as Qingkailing combination. The suppository which is 1-3g weight is made from the raw materials and supplementary materials with the following weight proportions of 8-13 proportions of Qingkailing combination, 5-50 proportions of suppository base, 0.1-5 proportions of surfactant, 0.05-3 proportions of sorbefacient, and 0-3 proportions of additional agent. The Qingkailing suppository of the invention not only can compensate the defects that the oral taking preparation is slow to take effect and injection preparation has great toxicity, but also can prolong the duration of the medicine, provides a wider selection range for clinics and sufferers, has simple production technology, is suitable for industrialized batch production, and is suitable to be taken by infants.
Owner:GUANGZHOU PHARMACEUTICAL INDUSTRIAL RESEARCH INSTITUTE +1

Pig gall powder preparing process

The invention discloses a pig gall powder preparing process. The process comprises the steps that pig bile is fetched and conveyed into a first drying device, and steam is led into the first drying device to heat the pig bile to 50-70 DEG C; the air pressure in the first drying device is adjusted to be lower than the atmospheric pressure for drying under reduced pressure; when the relative density of materials reaches 0.8-1.25, the pig bile is cooled down to below 30 DEG C, the materials are taken out, placed into a heated air circulation constant-temperature drying oven for drying at the temperature ranging from 40 DEG C to 70 DEG C with the traying thickness ranging from 1 cm to 2 cm, smashed and filtered through a screen with the mesh ranging from 80 to 100 to obtain pig gall powder medicinal slices, and then the pig gall powder medicinal slices are packaged into finished products. Pig gall powder prepared from the pig bile is excellent in quality, and the major component of the pig gall powder is taurohyodeoxycholic acid sodium hydrate which has the effects of clearing heat, moistening dryness, relieving cough and asthma and detoxifying; the pig gall powder is rich in cholanic acid, can effectively inhibit forming of bile acid, dissolve fat and reduce cholesterol and triglyceride in blood and has a good curative effect on various types of hyperlipemia.
Owner:四川神农药业有限公司
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