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65 results about "Bergenin" patented technology

Bergenin, alias cuscutin, is trihydroxybenzoic acid glycoside. It is the C-glycoside of 4-O-methyl gallic acid. It possesses an O-demethylated derivative called norbergenin. These are chemical compounds and drugs of Ayurveda, commonly known as Paashaanbhed. It shows a potent immunomodulatory effect.

Method for extracting bergenin from traditional Chinese medicine rodgersia podophylla

The invention belongs to the field of chemical research of traditional Chinese medicine, in particular to a method for extracting bergenin from traditional Chinese medicine rodgersia podophylla. In the prior art, methanol ultrasonic is used for extracting bergenin, which is not suitable for industrial production; in addition, a method for adopting lime water wastes time. In order to overcome the defects in the prior art, the invention adopts the technical scheme that the method for extracting bergenin from traditional Chinese medicine rodgersia podophylla comprises the following steps: taking traditional Chinese medicine rodgersia podophylla coarse powder as raw material; carrying out reflux extraction on the raw material for 3 times by alcohol of which the amount is 4-6 times of that of the raw material, wherein the first time lasts for 1-3 hours, and the second time and the third time respectively last for 0.5-1.5 hours; collecting extract, precipitating and filtering; recovering filtrate, and condensing to small volume; standing for devitrification; after the devitrificated crystal is dissolved by alcohol-carbinol mixed liquid at the volume ratio of 8:1-8:3, carrying out hot filtering; and after filtering, standing for devitrification. The method has simple technology, low cost, available raw material and high extraction efficiency and is favorable for industrial production.
Owner:罗定强

Assay method of metabolite of bergenin in animal body

The invention relates to an assay method of metabolite of bergenin in an animal body. The method includes the following steps: adding acetonitrile into dosed blood plasma, dosed urine, dosed bile and dosed excrement sample to be assayed and non-dosed blank blood plasma, non-dosed urine, non-dosed bile and non-dosed excrement, mixing and spinning, centrifuging, clear-taking, drying and redissolving the samples to obtain liquid to be assayed, analyzing the liquid to be assayed through a high performance liquid chromatograph/ quadrupole rod-time of flight/ tandem mass spectrum (HPLC/Q-TOF/MS) method to obtain a total ions chromatogram of the liquid to be assayed, conducting contrast identification to the total ions chromatogram of a blank sample and the total ions chromatogram of a dosed sample, extracting ions and secondary fragments from the total ions chromatogram of the blank sample and the total ions chromatogram of the dosed sample, analyzing the ions and the secondary fragments, and obtaining that the metabolite of the bergenin in the animal body is a glucuronic acid combined product, a sulfuric combined product, hydrolysate and a methyl combined product. According to the assay method of the metabolite of the bergenin in the animal body, a high-sensitivity, strong-specificity, convenient and feasible HPLC/ Q-TOF MS/ MS method is first established and the metabolite of the bergenin in the animal body is successfully assayed through the HPLC/ Q-TOF MS/ MS method.
Owner:SHANDONG UNIV

Children Kaihoujian spray as well as preparation and quality standard inspection method thereof

The invention discloses a children Kaihoujian spray as well as a preparation and quality standard inspection method thereof. The children Kaihoujian spray is prepared from four Chinese herbs such as ardisia crispa, radix sophorae subprostratae, periostracum cicada and menthol; in an identification process, the thin-layer identification of radix ardisiae crenataeis is corrected, in an original standard, the identification is performed by referring to bergenin, a test sample preparation method is complex, the original method is modified, a radix ardisiae crenataeis reference herb is added, so that the test sample preparation method is simplified, and the method is high in specificity and good in repetition and is listed in the standard text; the language description for identifying a mentholthin layer is standardized, and a reagent benzene used for the developing agent is replaced as methylbenzene; and the thin-layer identification of the radix ardisiae crenataeis is added, sophocarpidine is adopted as a reference, and by virtue of examination, the method is stable and good in repetition, thereby being listed in the standard text. In addition, the research is made for the thin-layeridentification of periostracum cicada.
Owner:贵州三力制药股份有限公司

Preparation method and application of herba ardisiae japonicae alcohol extract

The invention belongs to the technical field of traditional Chinese medicines, and discloses a preparation method and application of a herba ardisiae japonicae alcohol extract. The preparation method comprises the following steps: after drying and crushing a herba ardisiae japonicae medicinal material at low temperature, weighing 0.1g of the crushed herba ardisiae japonicae medicinal material, and adding 0.1mL of methanol; after carrying out vortex oscillation, carrying out ultrasonic treatment and cooling; then weighing the weight, and supplementing the reduced weight with the methanol; uniformly shaking and filtering; taking subsequent filtrate and preserving for later use; weighing a bergenin reference substance, and adding the methanol to prepare a solution; determining the content of bergenin in the herba ardisiae japonicae alcohol extract by adopting an ultra-high performance liquid chromatography. According to the preparation method and the application of the herba ardisiae japonicae alcohol extract, the content of the bergenin in the herba ardisiae japonicae alcohol extract is 9.88mg/g and accords with quality standards; herba ardisiae japonicae can be used for reducing the quantity of lipid droplets in ST-2 and C3H10 cells which are obtained by inducing adipogenesis differentiation, and for inhibiting mRNA expression of adipogenesis differentiation characterization genes PPARgamma, C/EBPalpha and aP2; interventional treatment of the herba ardisiae japonicae can be used for effectively reducing the weight of C57BL/6 mice fed by high fat diet.
Owner:TIANJIN UNIV OF TRADITIONAL CHINESE MEDICINE

Bergenin osmotic pump tablet and preparation method thereof

The invention provides a bergenin osmotic pump tablet. The bergenin osmotic pump tablet is prepared by coating bergenin, a penetration enhancer and an auxiliary material suppressant tablet core with a controlled release film and punching, wherein the penetration enhancer is polyethylene oxide PEO and mannitol, the tablet core contains 8.3-37.5wt% of bergenin, 3.5-45wt% of polyethylene oxide PEO and 20-45wt% of mannitol. The invention also provides a preparation method of the bergenin osmotic pump tablet. The invention improves the solubility of a slightly soluble drug of the bergenin by utilizing a Beta-cyclodextrin inclusion technology, and further the bergenin is prepared into a single layer osmotic pump type controlled release tablet so as to decrease the drug release speed, reduce the dosage frequency, improve the bioavailability and greatly simplify the process; compared with the common bergenin tablet, the solubility of the prepared bergenin solid dispersoid osmotic pump tablet is obviously enhanced, and the drug is released according to a zero order release speed, and the blood drug level is more moderate and stable, thereby improving the bioavailability, enhancing the clinic curative effects, reducing the dosage frequency and increasing medicine-taking compliance of a patient so that the bergenin is applied more widely in medicine.
Owner:CHENGDU MEDICAL COLLEGE

Synergistic bio-composite insecticidal pesticide for gardening and preparation method thereof

The invention discloses a synergistic bio-composite insecticidal pesticide for gardening and a preparation method thereof. The pesticide is prepared from, by weight, 16-25 parts of extract liquid of euphorbia helioscopia, 8-14 parts of bergenin std., 6-11 parts of extract of pyrethrum cinerariifolium, 7-11 parts of attapulgite powder, 3-5 parts of sophora flavescens alkaloids, 4-7 parts of chili,2-6 parts of folium artemisiae argyi, 15-21 parts of euphorbia nematocypha, 7-12 parts of tea saponin, and 6-12 parts of pumpkin leaves. In the invention, by means of effective ratio of the extract liquid of euphorbia helioscopia, the bergenin std., the extract of pyrethrum cinerariifolium, the attapulgite powder, the sophora flavescens alkaloids, the chili, the folium artemisiae argyi, the euphorbia nematocypha, the tea saponin and the pumpkin leaves, the pesticide is produced. The preparation method is simple. The pesticide has significant effect of killing pests and has no residue, is freeof polluting soil, water source and crops, can be degraded in natural environment, is free of damage on human and animals and generation of drug resistance in pests, is prepared from natural raw materials and is toxic-free, and has good insecticidal effect when being directly applied to flowers.
Owner:何玉莲

Extraction method and extraction system for bergenin

The invention relates to the field of Chinese herbal medicine, in particular to an extraction method and an extraction system for bergenin. The extraction method includes placing medicinal material powders in an extracting tank, adding ethanol in the extracting tank, heating to enable effective components in the medicinal material powders to be dissolved in the ethanol, heating until the ethanol boils to obtain a mixture, filtering the mixture to obtain a first filter liquor, subjecting the first filter liquor to evaporation and concentration to obtain an extracting liquor and a first gas which has a major component of the ethanol, keeping a first filtering medium in the extracting tank, cooling the first gas to a first liquid, real-timely adding the first liquid in the extracting tank, subjecting the extracting liquor to recrystallization, performing centrifugal separation to obtain a bergenin crude product, and refining the bergenin crude product. The extraction system comprises a coarse extraction device and a refining device, and the coarse extraction device includes a first heating device, a circulating concentration extraction unit, a first recrystallization device and a first solid-liquid separation device. According to the extraction method and the extraction system for the bergenin, low cost and high efficiency production is achieved.
Owner:昭通市骅成制药有限公司

Preparation of bergenin in aruneus dioicus

The invention belongs to the technical field of the research and development of medical products, relating to preparation of bergenin in aruneus dioicus. A preparation method comprises the steps of: pulverizing dried aruneus dioicus, soaking for 10-12 hours in 50 percent of alcohol, carrying out ultrasound for 1-1.5 hours with the temperature of 30 DEG C and the power of 80W, repeating 3 times, filtering by using gauze, merging filtrate, concentrating, blending and suspending by using water, sequentially extracting by using petroleum ether, ethyl acetate and n-butyl alcohol, concentrating the recovered extracting solvent to obtain four parts, dissolving an ethyl acetate part by using methanol, blending a sample by using silicagel, loading on a silicagel column, assembling the column by using chloroform, carrying out gradient elution by using chloroform-methanol, merging similar fractions, concentrating, further carrying out chromatography by using the silicagel column, merging similar fractions, concentrating, separating out crystal and obtaining a bergenin monomer by using a recrystallization method. The bergenin has the main effect of relieving a cough and eliminating phlegm, also has the effects of anti-inflammation, liver protection, anti-ulcer, immune improvement and the like and can be further used for the research and development of corresponding preparation products used for clinical applications.
Owner:SHANDONG UNIV AT WEIHAI

Chinese astilbe herb ultra-fine powder decoction pieces and preparation method thereof

The invention provides Chinese astilbe herb ultra-fine powder decoction pieces which comprise Chinese astilbe herb ultra-fine powder and auxiliaries, and the particle size of the Chinese astilbe herb ultra-fine powder is smaller than or equal to 75 microns.The invention further provides a preparation method of the Chinese astilbe herb ultra-fine powder decoction pieces.The method includes the steps that 1, the Chinese astilbe herb decoction pieces are crushed and sieved, and a Chinese astilbe herb plus sieve component and a Chinese astilbe herb minus sieve component are obtained; 2, the obtained minus sieve component is subjected to superfine grinding, and the Chinese astilbe herb ultra-fine powder is obtained; 3, the Chinese astilbe herb ultra-fine powder is mixed with the auxiliaries, and the Chinese astilbe herb ultra-fine powder decoction pieces are obtained.According to the Chinese astilbe herb ultra-fine powder decoction pieces, the dissolution rate of the effective ingredient bergenin in Chinese astilbe herb ultra-fine powder particles is remarkably improved, the dissolution rate can reach 35.12 mg/g to the maximum, the problem that it is difficult to transfer main ingredients, particularly the bergenin in Chinese astilbe herbs is solved, and thus bioavailability of medical materials is improved.
Owner:建德市大洋南山中药材专业合作社
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