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332 results about "Silibinin" patented technology

Silibinin (INN), also known as silybin (both from Silybum, the generic name of the plant from which it is extracted), is the major active constituent of silymarin, a standardized extract of the milk thistle seeds, containing a mixture of flavonolignans consisting of silibinin, isosilibinin, silicristin, silidianin, and others. Silibinin itself is a mixture of two diastereomers, silybin A and silybin B, in approximately equimolar ratio. The mixture exhibits a number of pharmacological effects, particularly in the liver, and there is some clinical evidence for the use of silibinin as a supportive element in alcoholic and child grade 'A' liver cirrhosis.

Application of diamine formyl dehydrogenated silybin serving as medicament for curing viral hepatitis B

The invention relates to application of diamine formyl dehydrogenated silybin serving as a medicament for curing viral hepatitis B, in particular to application of a flavonolignan of dehydrogenated silibinin esters of which the ring A and the ring E have diamine formyl-methoxyl substituents or pharmaceutically acceptable salts thereof in preparation of a medicament for clearing HBsAg and HBeAg and a medicament for inhibiting HBV DNA replication. The flavonolignan of dehydrogenated silibinin esters of which the ring A and the ring E have diamine formyl-methoxyl substituents has extremely high HBsAg and HBeAg inhibiting activities; when the flavonolignan of dehydrogenated silibinin esters of which the ring A and the ring E have diamine formyl-methoxyl substituents is at a concentration of 20 mu g/ml, the inhibition rates of the HBsAg and the HBeAg are respectively 94.4 percent and 95.7 percent which exceed 5.9 times and 5.7 times those of a positive control alpha-interferon; and simultaneously the inhibition rate of the HBV DNA is 99.7 percent when the flavonolignan of dehydrogenated silibinin esters of which the ring A and the ring E have diamine formyl-methoxyl substituents is at the same concentration, and the inhibition activity of the flavonolignan of dehydrogenated silibinin esters of which the ring A and the ring E have diamine formyl-methoxyl substituents is higher than that of lamivudine and the alpha-interferon. In summary, the flavonolignan of dehydrogenated silibinin esters of which the ring A and the ring E have diamine formyl-methoxyl substituents or the pharmaceutically acceptable salts thereof can be expected for preparing non-nucleoside medicaments for clearing the HBsAg and the HBeAg, inhibiting the HBV DNA replication, and curing the hepatitis B virus infection diseases.
Owner:DALI UNIV

Application of aromatic carbamoyl dehydro-silibinin as medicament for treating viral hepatitis B

The invention relates to application of aromatic carbamoyl dehydro-silibinin as a medicament for treating viral hepatitis B, in particular to application of todehydro-silibinin flavonolignans with a ring A and a ring E which are substituted by double base aromatic carbamoyl methoxyl and pharmaceutically acceptable salt thereof for preparing medicaments for removing HBsAg and HBeAg and medicaments for inhibiting HBV DNA. The todehydro-silibinin flavonolignans has extremely obvious activity on inhibiting the HBsAG and the HBeAg, has the intensity of 46.2 percent and 68.9 percent for respectively removing the HBsAG and the HBeAg in the presence of the concentration of 100 microgram/milliliter, which is 2.9 times and 4.1 times higher than that of positive control medicament alpha-interferon, and has the inhibition ratio of 96 percent on HBV DNA in the presence of the concentration of 100 microgram/milliliter, which is higher than that of lamivudine and the alpha-interferon. Accordingly, the flavonolignans and the pharmaceutically acceptable salt thereof can be expected to be used for preparing non-nucleoside medicaments applied for removing HBsAg and HBeAg, inhibiting HBV DNA replication and treating hepatitis B virus infection diseases.
Owner:DALI UNIV

Method for simultaneously extracting silybum marianum oil and silymarin from silybum marianum cake

The invention discloses a production method for simultaneously extracting silybum marianum oil and silymarin from a silybum marianum cake. The method comprises the following steps: (a) performing multistage pulse counter-current extraction on the silybum marianum cake to obtain a mixed solution containing the silybum marianum oil and the silymarin, wherein the solvent used in the extracting process is a mixed solvent of the methanol and the normal hexane at a mass ratio of (0.6-1):1; (b) filtering and separating the mixed solution containing the silybum marianum oil and the silymarin to obtain the silybum marianum oil normal hexane mixed solution and the silymarin methanol mixed solution; (c) performing negative-pressure counter-current film evaporation and negative-pressure water vapor steam distillation on the silybum marianum oil normal hexane mixed solution to obtain the silybum marianum oil; and (d) performing negative-pressure climbing film evaporation, negative-pressure rectification and spray dehydration on the silymarin methanol mixed solution to obtain the silymarin. By adopting the method provided by the invention, the extracting rate of the silymarin is greatly increased and the problems of large input of the solvent and low extracting rate in the silymarin production process can be solved; the production process is free of pollution and low in cost, so that the large-scale, industrial and continuous production of the silymarin can be realized.
Owner:安徽嘉旗粮油工程技术有限公司

Method for preparing Silymarin

The invention relates to a method for preparing Silymarin. The method has the advantages that the operation is simple and convenient, the pollution is low and the equipment investment is small. The technological steps are that: Silybum marianum fine powder is taken and is added in a CO2 supercritical extractor, methanol is used as entrainer, the entrainer accounts for 2-6 percent of the total volume of extraction solvent, the extraction pressure is 10-40MPa, the extraction temperature is 30-60 DEG C, CO2 flow is 1-5ml per gram crude drug per minutes, the extraction time is 150-250min, the extract is obtained, acetone is added, agitation is conducted to enable the acetone to be dissolved, filtration is conducted, the filtered liquid is obtained and is concentrated, the obtain liquid is filled in a high-efficiency countercurrent extractor, water-acetone-chloroform (1:5:2) solvent system is used, the bottom phase is a fixed phase, the top phase is a flowing phase, Silymarin segments are collected and are concentrated, crystals are precipitated and are separated, and acetone-petroleum ether (0.5-2:1) are added for recrystallization. The invention has the advantages that the purity of the prepared Silymarin is high and the industrialization amplification can be realized easily.
Owner:SUZHOU PAITENG BIOLOGICAL MEDICAL TECH

New method for purifying silymarin

The invention belongs to the field of natural organic chemistry, and relates to a method for preparing high purity silymarin by the following steps: adopting biological wall breaking and microwave pretreatment to obtain oil, carrying out microwave countercurrent extraction and macroporous resin purification to obtain the high purity silymarin. The method has the following advantages that: 1, a step-by-step method is adopted to carry out degreasing, seeds are pretreated, microwave countercurrent extraction is performed, and isoelectric point precipitation is performed to remove proteins, such that complete dissolution of effective components of the silymarin is prompted; 2, with the microwave extraction, the extraction time is reduced to 60-80 minutes so as to improve extraction speed and increase effective component content, and reduce herb consumption and energy consumption; 3, the macroporous resin adsorption technology is adopted so as to reduce the amount of the solvent, and the macroporous resin can be conveniently and rapidly regenerated, such that the cost is substantially reduced; and 4, two products of silybum marianum oil and silymarin can be obtained. With the method, the biological wall breaking treatment is performed on the silybum marianum seeds at the early stage so as to shorten the microwave pretreatment time, such that the seed oil can be extracted in just a few minutes; with the two-step microwave extraction, the extraction time is shortened; and the disadvantages of long conventional extraction time, low extract purity and single extract are overcome.
Owner:DAXINGANLING LINGOBERRY BOREAL BIOTECH CO LTD
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