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7 results about "Anthocyanidin" patented technology
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Anthocyanidins are common plant pigments. They are the sugar-free counterparts of anthocyanins based on the flavylium ion or 2-phenylchromenylium, which is a type of oxonium ion (chromenylium is referred also to as benzopyrylium). They form a large group of polymethine dye. In particular anthocyanidins are salt derivatives of the 2-phenylchromenylium cation, also known as flavylium cation. As shown in the figure below, the phenyl group at the 2-position can carry different substituents. The counterion of the flavylium cation is mostly chloride. With this positive charge, the anthocyanidins differ from other flavonoids. 31 monomeric anthocyanidins have been properly identified, most of the anthocyanins are based on cyanidin (30%), delphinidin (22%), and pelargonidin (18%), respectively. Altogether 20% of the anthocyanins are based on the three common anthocyanidins (peonidin, malvidin, and petunidin) that are methylated. Around 3%, 3%, and 2% of the anthocyanins or anthocyanidins are respectively labeled as 3-desoxyanthocyanidins, rare methylatedanthocyanidins, and 6-hydroxyanthocyanidins, respectively.
Cell-sized liposomes, method for estimating procyanidin concentration, and method for measuring procyanidin concentration
To provide a simple procyanidin analysis method that can be performed at a low cost, and in the form of preliminary analysis for selecting a sample for precision analysis in HPLC, that is, screening.SOLUTION: Cell size liposomes 10, 10' are composed of a lipid component system in which one or more phospholipids 2, 3 and one or more sterol-based lipids 5 are used in a constant composition, and procyanidin 8, where different phase separation domain generation patterns are generated depending on the concentration of procyanidin 8, which can be used for estimating the procyanidin concentration from the phase separation domain generation pattern. The phospholipids 2, 3 are unsaturated phospholipid or saturated phospholipid.SELECTED DRAWING: Figure 1
Owner:AOMORI PREFECTURAL IND TECH RES CENT
Coreopsis tinctoria refined component as well as preparation method and application thereof
The invention relates to the technical field of coreopsis tinctoria refined components and preparation and application, and provides a coreopsis tinctoria refined component and a preparation method and application thereof.The coreopsis tinctoria refined component comprises, by mass, 11 specific components of phenolic acids, flavonol, flavanol and flavonoid, and the 11 specific components comprise, by mass, 2 parts of gallic acid, 1 part of potassium sorbate, 1 part of potassium sorbate, 1 part of potassium sorbate and 1 part of potassium sorbate. The health-care food is prepared from the following raw materials in parts by weight: 3 parts of chlorogenic acid, 14 parts of quercetin, 18 parts of catechin, 5 parts of citric acid, 2-3 parts of procyanidine B, 3 parts of (+)-epicatechin, 1-31 parts of 31 parts of procyanidine C, 14 parts of rutin, 4 parts of camphanol-3-O-rutinoside and 2 parts of isorhamnetin-3-O-rutinoside. The snow chrysanthemum is Changbai Mountain snow chrysanthemum. Animal experiments show that the refined component can significantly reduce the content of total cholesterol and triglyceride in serum of a high-fat model rat, the specific component with blood fat regulating activity is prepared from Changbai Mountain snow chrysanthemum, and a new choice is provided for non-drug intervention of dyslipidemia.
Owner:CHANGCHUN UNIV OF CHINESE MEDICINE
A procyanidine C1 extraction system and extraction method
This invention relates to the field of natural product separation and purification technology, specifically to a proanthocyanidin C1 extraction system and method. The aim is to solve the problems of high spectral overlap between proanthocyanidin C1 and its homomeric isomers, overlapping peak edges, and the inability of traditional fixed elution flow rates to adapt to real-time micro-changes in peak shape, leading to inaccurate fraction collection and low extraction purity and yield. In liquid chromatography detection, a real-time spectral micro-shift data capture unit extracts the shoulder peak spectral micro-shift values within a narrow wavelength range at the edge of the characteristic absorption peak. A micro-shoulder peak shift correction algorithm unit fits the instantaneous correlation coefficient between the shift value and the elution flow rate using the least squares method, generating a flow rate adjustment command. A dynamic elution flow rate adjustment unit drives the elution pump to adjust the flow rate, establishing a dynamic coupling relationship. The fraction collection node calculates compensation for the shift and locks the characteristic peak position of the pure component, precisely controlling the start and end times of collection, thereby improving the extraction purity and yield of proanthocyanidin C1.
Owner:BINZHOU MEDICAL COLLEGE
Chitosan-cyanine pigment / carboxylated graphene oxide film and preparation method thereof
The application discloses a chitosan-cyanine / carboxylated graphene oxide film and a preparation method thereof. The application uses a glass slide as a substrate, alternately assembles chitosan with opposite charges and carboxylated graphene oxide on the substrate, and dries the film to obtain a layer-by-layer self-assembly film with different double layers. The modified film has greatly improved ultraviolet blocking capacity, maintains good transparency, and has enhanced mechanical performance and water blocking performance, and has good antioxidant performance. The application selects carboxylated graphene oxide as an assembly material for the first time, and has the advantages of mild conditions, simple process, no introduction of other impurities in the modification process, no generation of other by-products and the like.
Owner:NANJING UNIV OF SCI & TECH
A liquid tea product
The present invention relates to a liquid tea product. More particularly the present invention relates to a ready-to-drink liquid tea product. Accordingly, a liquid tea product comprising: a. a tea extract; and, b. a compound comprising a flavylium cation; wherein the total polyphenol content in the product is less than 0.04% by weight, and further wherein i) the structure of the flavylium cation is: formula (I); ii) the compound comprising flavylium cation belongs to the group of anthocyanins; and, iii) the pH of the product is less than 6.
Owner:UNILEVER IP HLDG BV +1
A composition containing procyanidin and ceramide or nucleic acid.
To provide a composition that can improve or maintain vascular functions, or in particular, can improve or maintain vascular functions, hematologic properties, a blood flow and the like.SOLUTION: The present invention provides a composition containing procyanidin, and ceramide or nucleic acids.SELECTED DRAWING: Figure 1
Owner:TOYO SHINYAKU KK
Method for detecting gelatin concentration in electrolyte for copper electrolytic refining
PendingCN122108991AMaterial analysis by observing effect on chemical indicatorColor/spectral properties measurementsElectrolytic agentPhysical chemistry
The application provides a detection method for gelatin concentration in electrolyte for copper electrolytic refining, comprising: forming a precipitate by reacting the filtered copper electrolytic refining electrolyte with a cyanidin solution; dissolving the precipitate with a precipitate dissolving agent and then reacting with a chromogenic agent; determining the strongest absorption wavelength U and its absorbance value by using an ultraviolet-visible spectrophotometer; preparing a control solution, and obtaining a net absorbance value by background deduction; preparing 5-10 standard copper solutions with known gelatin concentrations, and determining the net absorbance value of each standard copper solution; and calculating the gelatin concentration in the electrolyte according to the gelatin concentration and the net absorbance value of the standard copper solution fitting a standard exponential equation curve. The combined process of specific precipitation separation-dissolution-color development reaction-ultraviolet spectrophotometric detection realizes accurate determination of the gelatin concentration in the complex copper electrolyte system, and has the technical effects of strong anti-interference, simple operation, wide detection range, high precision and low equipment dependency.
Owner:CHINALCO RES INST OF SCI & TECH CO LTD +1