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41results about How to "Good lipid-lowering activity" patented technology

Preparation and purification method of chitosan oligosaccharide

The invention discloses a preparation and purification method of chitosan oligosaccharide. The method comprises the following steps of: taking chitosan dried to constant weight, adding a HCl solution,and adjusting a pH value; adding a chitosanase solution, performing insulation for 2h-6h, and then heating the material in a boiling water bath and performing enzyme deactivation; performing rotary evaporation and condensation at 50 DEG C or lower, and then placing the material in a freeze dryer to obtain a crude chitosan oligosaccharide extract; dissolving the crude chitosan oligosaccharide extract in a NH4HCO3 solution, and after completely dissolved, filtering the material through a filter membrane to obtain a chitosan oligosaccharide solution; dumping resin into a chromatography column, using NH4HCO3 for flushing resin until the resin is compacted, slowly dumping the chitosan oligosaccharide solution into the chromatography column, collecting an eluate, and performing rotary evaporation and condensation to obtain chitosan oligosaccharide. The method has the advantages that the chitosanase is used to decompose chitosan to prepare chitosan oligosaccharide, and the chitosan oligosaccharide with a single polymerization degree is prepared by gel column chromatographic separation and purifying, the purity can achieve more than 97%, the prepared chitosan oligosaccharide has good hypolipidemic activity, protects the liver, and enhances the antioxidant activity of the body.
Owner:肖梅

Resveratrol derivative and application thereof to medicament

The invention relates to a resveratrol derivative and application thereof to a medicament, and particularly discloses a compound shown as a formula I or pharmaceutically acceptable salt, ester, solvate and stereoisomers thereof. In the formula I, R1, R2 and R3 are independently selected from a hydrogen atom, C1 to C3 alkyl or a substituted group shown as a formula i; at least one of R1, R2 and R3 is the substituted group shown as the formula i; R is selected from the hydrogen atom, substituted or unsubstituted C1 to C5 alkyl, substituted or unsubstituted C3 to C6 naphthenic base, benzyl or phenyl; R4 and R5 are independently selected from the hydrogen atom, the substituted or unsubstituted C1 to C5 alkyl, or substituted or the unsubstituted C3 to C6 naphthenic base; and n is an integer of between 1 and 5. The invention also discloses a medicinal composition containing the compound shown as the formula I, and the application of the compound shown as the formula I to the preparation of a medicament for treating and/or preventing cardiovascular and cerebrovascular diseases. The compound shown as the formula I can be effectively used for treating and/or preventing the cardiovascular and cerebrovascular diseases such as hyperlipemia.
Owner:INST OF PHARMACOLOGY & TOXICOLOGY ACAD OF MILITARY MEDICAL SCI P L A

Composite seaweed polysaccharide oral liquid for reducing blood lipid and preparation method of composite seaweed polysaccharide oral liquid

The invention discloses composite seaweed polysaccharide oral liquid for reducing blood lipid and a preparation method of the composite seaweed polysaccharide oral liquid. The composite seaweed polysaccharide oral liquid for reducing blood lipid is prepared from the following components in percentage by mass: 60-90% of a seaweed polysaccharide extract, 1-10% of a haw extract, 1-10% of a lotus leaf extract, 1-10% of a ginkgo leaf extract, 1-10% of a mulberry leaf extract and 0.01-10% of a sweetening agent, wherein the seaweed polysaccharide extract is obtained through extraction with high-pressure steam. The preparation method comprises the following steps of mixing the components in percentage by mass to obtain a mixture, performing cold storage on the mixture, performing centrifugation to obtain a supernatant, performing filling, performing covering, and performing sterilization so as to obtain the composite seaweed polysaccharide oral liquid for reducing blood lipid. According to the composite seaweed polysaccharide oral liquid and the preparation method thereof disclosed by the invention, polysaccharide and polyphenol substances having the efficacy of reducing blood lipid are in synergy and are compounded, the preparation method is simple in steps, the synergistic interaction of seaweed polysaccharides and polyphenols is used for strengthening the efficacy of the seaweed polysaccharides for reducing blood lipid, and the purpose of enhancing the efficacy of the finished products for reducing blood lipid can be achieved.
Owner:SOUTH CHINA UNIV OF TECH

Resveratrol derivative and medical application thereof

The invention relates to a resveratrol derivative and a medical application thereof, and in particular discloses a compound in a formula I as shown in the specification or pharmaceutically acceptable salt, ester, solvate and stereoisomer thereof, wherein R1, R2 and R3 are respectively independently selected from hydrogen atom, C1-C3 alkyl groups, or a substituent group in a formula i as shown in the specification, at least one of R1, R2 and R3 is selected from the C1-C3 alkyl groups, and simultaneously at least one of R1, R2 and R3 is selected from the substituent group in the formula i; R is selected from hydrogen atom, substituted or unsubstituted C1-C5 alkyl groups, substituted or unsubstituted C3-C6 naphthenic groups, benzyl groups or phenyl groups; and R4 and R5 are respectively independently selected from hydrogen atom, substituted or unsubstituted C1-C5 alkyl groups, or substituted or unsubstituted C3-C6 naphthenic groups. The invention also discloses a pharmaceutical composition containing the compound in the formula I, and the application of the compound in the formula I in preparing medicines for treating and/or preventing cardiovascular and cerebrovascular diseases. The compound in the formula I provided by the invention can be effectively used for treating and/or preventing the cardiovascular and cerebrovascular diseases such as hyperlipidaemia.
Owner:INST OF PHARMACOLOGY & TOXICOLOGY ACAD OF MILITARY MEDICAL SCI P L A

Saffron crocus petal refined alcohol extract, and preparation method and application thereof

The invention discloses a saffron crocus petal refined alcohol extract, and a preparation method and application thereof, and belongs to the technical field of saffron crocus active ingredient extraction. The preparation method comprises the following steps: S1, carrying out low-temperature plasma treatment; S2, carrying out subzero treatment; S3, carrying out superfine grinding treatment; S4, performing low-temperature vacuum drying treatment; S5, carrying out primary alcohol extraction; S6, carrying out secondary alcohol extraction; and S7, carrying out purification treatment. According to the saffron crocus petal refined alcohol extract, and the preparation method and application thereof provided by the invention, after the prepared saffron crocus petal refined alcohol extract is subjected to intragastric administration on a mouse, the weight increment and the food intake of the mouse are not remarkably different from those of a normal control group; therefore, the saffron crocus petal refined alcohol extract prepared by the method provided by the invention has relatively low influence on the appetite of the mouse and relatively small stimulation on the digestive system of the mouse. The saffron crocus petal refined alcohol extract prepared by the method disclosed by the invention has obvious blood fat reducing activity, that is, the saffron crocus petal refined alcohol extract prepared by the method disclosed by the invention is high in extraction rate and relatively high in activity.
Owner:上海中医药大学附属岳阳中西医结合医院崇明分院上海市崇明区第三人民医院

Resveratrol derivative and application thereof to medicament

The invention relates to a resveratrol derivative and application thereof to a medicament, and particularly discloses a compound shown as a formula I or pharmaceutically acceptable salt, ester, solvate and stereoisomers thereof. In the formula I, R1, R2 and R3 are independently selected from a hydrogen atom, C1 to C3 alkyl or a substituted group shown as a formula i; at least one of R1, R2 and R3 is the substituted group shown as the formula i; R is selected from the hydrogen atom, substituted or unsubstituted C1 to C5 alkyl, substituted or unsubstituted C3 to C6 naphthenic base, benzyl or phenyl; R4 and R5 are independently selected from the hydrogen atom, the substituted or unsubstituted C1 to C5 alkyl, or substituted or the unsubstituted C3 to C6 naphthenic base; and n is an integer of between 1 and 5. The invention also discloses a medicinal composition containing the compound shown as the formula I, and the application of the compound shown as the formula I to the preparation of a medicament for treating and / or preventing cardiovascular and cerebrovascular diseases. The compound shown as the formula I can be effectively used for treating and / or preventing the cardiovascular and cerebrovascular diseases such as hyperlipemia.
Owner:INST OF PHARMACOLOGY & TOXICOLOGY ACAD OF MILITARY MEDICAL SCI P L A

A kind of composite seaweed polysaccharide hypolipidemic oral liquid and preparation method thereof

The invention discloses composite seaweed polysaccharide oral liquid for reducing blood lipid and a preparation method of the composite seaweed polysaccharide oral liquid. The composite seaweed polysaccharide oral liquid for reducing blood lipid is prepared from the following components in percentage by mass: 60-90% of a seaweed polysaccharide extract, 1-10% of a haw extract, 1-10% of a lotus leaf extract, 1-10% of a ginkgo leaf extract, 1-10% of a mulberry leaf extract and 0.01-10% of a sweetening agent, wherein the seaweed polysaccharide extract is obtained through extraction with high-pressure steam. The preparation method comprises the following steps of mixing the components in percentage by mass to obtain a mixture, performing cold storage on the mixture, performing centrifugation to obtain a supernatant, performing filling, performing covering, and performing sterilization so as to obtain the composite seaweed polysaccharide oral liquid for reducing blood lipid. According to the composite seaweed polysaccharide oral liquid and the preparation method thereof disclosed by the invention, polysaccharide and polyphenol substances having the efficacy of reducing blood lipid are in synergy and are compounded, the preparation method is simple in steps, the synergistic interaction of seaweed polysaccharides and polyphenols is used for strengthening the efficacy of the seaweed polysaccharides for reducing blood lipid, and the purpose of enhancing the efficacy of the finished products for reducing blood lipid can be achieved.
Owner:SOUTH CHINA UNIV OF TECH

Cyclocarya paliurus mogroside as well as preparation method and application thereof

The invention relates to cyclocarya paliurus mogroside. The cyclocarya paliurus mogroside is obtained by performing water or alcohol extraction on cyclocarya paliurus leaves, passing through macroporous adsorption resin, and sequentially eluting with water and an ethanol solution. The preparation method comprises the following steps: adding a proper amount of cyclocarya paliurus leaves into water or ethanol, heating, refluxing and extracting, combining extracting solutions, and concentrating under reduced pressure to obtain a concentrated solution; enabling the concentrated solution to pass through a macroporous adsorption resin column, and sequentially eluting with water, a 15-25% ethanol solution and a 75-85% ethanol solution respectively; concentrating the 75-85% ethanol elution part under reduced pressure until no alcohol smell exists, adding water for suspension, extracting with ethyl acetate, and recovering the solvent to obtain a cyclocarya paliurus leaf sweet part; decoloring sweet parts of the cyclocarya paliurus leaves; and drying to obtain the cyclocarya paliurus mogroside. The cyclocarya paliurus mogroside or the cyclocarya paliurus mogroside prepared by the method can be used for preparing a medicine with a lipid-lowering function, or can be used for common food or health food, or can be directly used as a food additive such as a sweetening agent, an aromatic and the like.
Owner:CHINA THREE GORGES UNIV
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