1073 results about "Unsaturated fatty acid" patented technology

The invention belongs to the technical field of grease modification and lipid deep processing, and particularly relates to a method for enriching n-3 polyunsaturated fatty glyceride by an enzymic method. According to the method, alkyl-modified hollow mesoporous silica spheres are used as an immobilized enzyme carrier and an emulsifier, grease rich in n-3 polyunsaturated fatty acid is used as a raw material in a stable Pickering emulsion system, saturated fatty acid and monounsaturated fatty acid are selectively hydrolyzed by lipase, and polyunsaturated fatty glyceride is enriched. The method has the characteristics of fast reaction, high yield, wide substrate application range and reusability of the immobilized enzyme, and the content of polyunsaturated fatty acid in the polyunsaturated fatty glyceride reaches 58.05-90.53%.

The invention relates to the technical field of daily chemicals, in particular to multi-fermented oil and application thereof. The multi-fermented oil is prepared from Tibetan cordyceps sinensis, eurotium cristatum and saccharomycetes. The multi-fermented oil provided by the invention contains functional components and mild components, and contains rich fatty acids, antioxidant components and other substances with biological activity. A lipid structure in the fermented oil is similar to a natural sebum layer of skin, so that a protective barrier can be formed on the surface of the skin, and water loss is prevented. This is particularly beneficial to dry skin and helps the skin maintain moist and soft. And micromolecular lipid components in the fermented oil, such as unsaturated fatty acid, can more easily permeate into the deep layer of the skin, so that long-acting nourishing and moisturizing effects are provided for skin cells.

The invention discloses a schizochytrium limacinum genetic engineering strain capable of remodeling an FAS (Fibroblast Activated Sequence) pathway as well as a construction method and application thereof. The schizochytrium limacinum gene engineering strain is obtained by heterologous expression of a C16 elongase gene E16, a C18 elongase gene E18, a delta 9 desaturase gene D9, a delta 5 desaturase gene D5, a delta 6 desaturase gene D6 and a delta 15 desaturase gene D15 in a schizochytrium limacinum wild type. The recombinant schizochytrium limacinum described herein is capable of producing EPA comprising 2.08% by total fatty acids while also producing DHA comprising at least more than 41% by total fatty acids. In addition, the invention discloses a method for producing unsaturated fatty acid through a double-path channel of PKS and FAS, which is beneficial to promotion and application of a technology for producing EPA and DHA by schizochytrium limacinum.

The invention provides a polyether ester defoaming agent and a preparation method thereof. Firstly, glycidyl ether and short-chain alcohol react to prepare polyether, and finally, fatty acid is used for blocking to prepare polyether ester 1 #; glycidyl ether, polyethylene glycol and / or polypropylene glycol react to prepare polyether, and finally fatty acid is used for blocking to prepare polyether ester 2 #; glycidol ether, short-chain alcohol, polyethylene glycol and / or polypropylene glycol react to prepare polyether, unsaturated fatty acid continues to be used for blocking to obtain polyether ester, the polyether ester and hydrogen-containing silicone oil continue to react to obtain branched silicon polyether 3 #, and the two polyether esters and the branched silicon polyether are compounded and cooperated to form the final polyether ester defoaming agent. The polyether ester 1 #, the polyether ester 2 # and the branched silicon polyether 3 # all have hyperbranched structures, the polyether ester 1 # improves the dispersing performance and the instant defoaming performance of the defoaming agent, the polyether ester 2 # and the branched silicon polyether 3 # improve the foam inhibition performance of the defoaming agent, and the three substances are compounded to form the stable polyether ester defoaming agent with both defoaming and foam inhibition performance.

The present disclosure describes a Pseudococcus preparation and a preparation method and application thereof, the Pseudococcus preparation comprises an active ingredient, the active ingredient comprises a specific pro-inflammatory regression mediator (SPMs) and a pro-inflammatory regression mediator (PRMs), the specific proinflammatory regression medium and the proinflammatory regression medium are generated by catalyzing unsaturated fatty acid synthesized by micrococcus by own enzyme. According to the invention, the invention can provide the micrococcus preparation containing the specific proinflammatory regression medium and the proinflammatory regression medium as well as the preparation method and the application of the micrococcus preparation.

The invention relates to the technical field of grass carp nondestructive testing, in particular to a grass carp muscle unsaturated fatty acid content nondestructive testing method based on scale characteristic wavelength. The method comprises the following steps: constructing a back propagation neural network, and training the network by using a plurality of samples containing scale wavelength information and unsaturated fatty acid information to obtain a prediction model; and the fresh grass carp scale wavelength information is input into the prediction model to obtain the unsaturated fatty acid content of the living grass carp muscle, so that rapid nondestructive detection can be realized, and the detection accuracy is relatively high.

An acne clearing composition for optimizing skin grease mass, comprising the following components in parts by mass: 0.1-5 parts of a mango leaf extract, 0.1-10 parts of a guaiacum officinale extract, 0.1-10 parts of N-acetylglucosamine, 0.1-10 parts of a yeast extract, and 0.01-5 parts of EUK-134. The components of the acne clearing composition can cooperate with each other, so that optimization of sebum components, maintenance of the stability of proportions of saturated fatty acids / unsaturated fatty acids of the sebum components and inhibition of sebum peroxidation are realized on the whole, thereby achieving the effects of mildly clearing acnes and repairing a sebum layer barrier, and the acne clearing composition has excellent antibacterial performance. Moreover, the acne clearing composition can be added into cosmetics as an active ingredient, so that the cosmetics are mild and non-irritating, and the preparation method for the acne clearing composition is simple and uses easily obtained raw materials, thereby facilitating actual production.

The invention belongs to the technical field of microorganisms, and particularly relates to schizochytrium limacinum and application thereof as well as a method and a product for producing omega-3 polyunsaturated fatty acid. The schizochytrium sp. SKA-2 is preserved in the China Center for Type Culture Collection on October 23, 2024, and the preservation number of the schizochytrium sp. SKA-2 is CCTCC (China Center for Type Culture Collection) NO: M 20242314. The Schizochytrium sp. SKA-2 can grow well under the low-salt condition, and when the Schizochytrium sp. SKA-2 is used for fermentation to obtain the omega-3 polyunsaturated fatty acid, the production speed is high, the fermentation time is short, and the content of the omega-3 polyunsaturated fatty acid is high.

The invention discloses a traditional Chinese medicine composition for improving mutton quality and a preparation method thereof, and belongs to the technical field of feed additives. The traditional Chinese medicine composition is prepared from the following raw materials in parts by weight: 20 to 30 parts of radix angelicae, 10 to 15 parts of radix astragali seu hedysari, 10 to 15 parts of fructus crataegi and 10 to 15 parts of radix salviae miltiorrhizae. Experiments prove that by adding the traditional Chinese medicine composition provided by the invention into basic ration, the tenderness, meat color brightness, hardness, elasticity and other quality characteristics of mutton can be obviously improved; the content of unsaturated fatty acid in the mutton can be remarkably increased, and the purpose of improving the mutton quality is achieved. The invention provides a new choice for improving the mutton quality.

The present invention addresses the problem of providing a novel transparent cleaning agent having high cleaning power and excellent long-term stability even when containing water. The transparent cleaning agent for solving the problem of the present invention is characterized by being of a water-containing reverse micelle type containing the following components (A) to (F). (A) an ester of a fatty acid having 8-10 carbon atoms and a polyglycerol; (B) an ester of a branched fatty acid having 14-22 carbon atoms and / or an unsaturated fatty acid and a polyglycerol; (C) an aliphatic alcohol and / or fatty acid that is liquid at 25 DEG C; (D) an oil agent (excluding component (C)) containing a hydrocarbon oil; (E) more than 0% and 10% by mass or less of water; and (F) a polyol.

The invention provides a yak healthy feeding optimization method and system based on machine learning. The yak healthy feeding optimization method comprises the steps of obtaining a basic data set; according to the basic data set, performing erucic acid metabolic pathway feature construction to obtain a feature set representing erucic acid mediated lipid metabolic pathway; according to the lipid metabolism path feature set, meat quality improvement effect quantification is carried out, and probability distribution of unsaturated fatty acid deposition efficiency is obtained; according to the probability distribution, feeding amount reverse deduction is carried out, and a high-erucic-acid rapeseed oil intake interval is obtained through calculation; health benefit balance is carried out according to a high-erucic acid rapeseed oil intake interval, and a stable feeding strategy is obtained; biological rationality verification is carried out according to a stable feeding strategy, the continuity of the mapping relation between the feeding amount and the meat quality index is analyzed based on the topological structure of the feature space, and a healthy yak feeding optimization scheme is obtained. The feeding precision, the meat quality improvement effect stability and the yak health guarantee level are improved.

The invention relates to the technical field of grease processing, in particular to a preparation method for extracting refined vegetable oil fatty acid. A preparation method for refined vegetable oil fatty acid extraction comprises the following steps: vegetable oil refining treatment and refined vegetable oil fatty acid separation and extraction. In the vegetable oil refining treatment process, the degummed vegetable oil is subjected to deacidification and decolorization treatment by using the modified rice hull-based porous carbon, so that pigments, free fatty acids and heavy metal components in the vegetable oil can be efficiently adsorbed, the effects of adsorption, deacidification and decolorization are achieved at the same time, and the vegetable oil refining efficiency is effectively improved; vegetable oil refining quality is improved, so that the extraction effect of refined vegetable oil fatty acid is improved; in the separation and extraction process of fatty acid in the refined vegetable oil, the contact between urea and saturated fatty acid in the refined vegetable oil can be promoted by adding the crystallization inclusion additive, and a stably-clathrated composite crystal is quickly formed, so that the extraction purity of unsaturated fatty acid is improved.

The present invention belongs to the technical field of microbial fermentation, and discloses a method for co-producing DHA and carotenoids by schizochytrium fermentation, wherein the method uses schizochytrium as a production strain to produce polyunsaturated fatty acids and carotenoids, adds an NADPH oxidase inhibitor to the fermentation medium, and adopts a fermentation method with staged temperature control. The present invention combines staged temperature-changing fermentation with the addition of an NADPH oxidase inhibitor during microbial fermentation, thereby achieving the co-production of DHA and carotenoids during schizochytrium fermentation, thereby obtaining microbial oils with high DHA and carotenoid content.

The invention relates to the technical field of genetic engineering, in particular to a recombinant vector, an expression plasmid, a recombinant schizochytrium limacinum mutant and a method for increasing the DHA content of microorganisms. The LIP1 gene for coding lipase in the microbial lipid droplet protein is knocked out through a homologous recombination technology, and the production of lipase in the microbial lipid droplet can be effectively inhibited, so that the hydrolysis process of triglyceride of polyunsaturated fatty acid stored in the lipid droplet to glycerol and free fatty acid in the later stage of microbial culture is blocked, and DHA is prevented from being lost from a TAG repository; experimental verification shows that in microorganisms represented by schizochytrium limacinum, the DHA content can be increased by 21.8% compared with that of a wild type, the yield and purity of DHA are increased, the stability of the microbial fermentation process is guaranteed, and application and popularization are facilitated.

The disclosure relates to the field of specialty chemicals and methods for their synthesis. In embodiments, the disclosure provides viable bacterial cells which comprise heterologous dual 3-hydroxy-acyl-ACP dehydratase / isomerases, etc. The disclosure further provides monounsaturated fatty acid derivative molecules produced by the viable bacterial cells which are non-native to the bacterial cells. The disclosure further provides methods for the preparation and production of non-native monounsaturated fatty acid derivative molecules such as e.g., an ω3-monounsaturated fatty acid derivative, an ω5-monounsaturated fatty acid derivative, an ω9-monounsaturated fatty acid derivative, an ω11-monounsaturated fatty acid fatty acid derivative, etc.

The invention belongs to the field of food processing, and discloses a preparation method and application of a targeted colon delivery polyunsaturated fatty acid grease microcapsule. 11S globulin in soybeans and Arabic gum are used as wall materials of the microcapsule, complex coacervation of the 11S globulin in the soybeans and the Arabic gum is induced under a certain pH condition, so that oil drops are wetted by a coacervate, a core-shell structure is formed, a coacervate phase is further stabilized through glucan to inhibit coalescence, and on the basis, the microcapsule is prepared. And tannic acid, polysaccharide and protein can form hydrogen bonds and generate hydrophobic interaction to further crosslink the condensed phase to obtain the microcapsule capable of resisting digestion of the stomach and the small intestine, so that colon delivery of polyunsaturated fatty acid is realized.

The invention discloses a lamb feeding method for increasing polyunsaturated fatty acid in meat. According to the invention, lactobacillus reuteri is supplemented into the basic feed for sheep, so that polyunsaturated fatty acids in mutton can be increased, the tenderness of the mutton can be improved, and the proportion and area ratio of I-type muscle fibers in muscles can be increased. Meanwhile, the technical scheme also can regulate the rumen microbial community structure of the sheep, promote the degradation of rumen carbohydrates and the generation of muscle aromatic compounds, and regulate the metabolism of sheep muscle proteins. The proper addition amount of lactobacillus reuteri in the basic feed for sheep is determined, the obtained optimized feed can improve polyunsaturated fatty acid and tenderness of mutton, the slaughter performance of sheep is enhanced, and the economic income of pasturing households and the economic benefit level of enterprises can be improved.

The utility model relates to the technical field of enzymolysis tanks, in particular to a nitrogen-filled enzymolysis tank for seaweed extracts, comprising a tank body, the top of the tank body being detachably connected with a cover body, the inner bottom and top of the tank body being respectively fixedly connected with a lower air guide ring and an upper air guide ring, the outer side of the tank body being provided with a main manifold, nitrogen being sprayed out through a plurality of air guide holes, so that the nitrogen is respectively introduced from the bottom and the top of the tank body, the nitrogen is fully mixed with an enzymolysis solution through the plurality of air guide holes, the mixing effect is improved, and when a liquid guide pump is started at the same time, the enzymolysis solution at the bottom of the tank body enters the interior of a diverter plate through a liquid guide pipe, and then is sprayed out through a plurality of evenly distributed nozzles, so that the enzymolysis solution and the nitrogen above the tank body are further contacted and mixed, the mixing effect is good, so that the entire enzymolysis system starts temperature-controlled enzymolysis under the condition of being full of nitrogen protection, the unsaturated fatty acids in the enzymolysis solution are fully protected, the oxidation reaction is reduced, and the nutritional value of the active ingredients is retained.

The present invention relates to methods of synthesizing long-chain polyunsaturated fatty acids, especially eicosapentaenoic acid, docosapentaenoic acid and docosahexaenoic acid, in recombinant cells such as yeast or plant cells. Also provided are recombinant cells or plants which produce long-chain polyunsaturated fatty acids. Furthermore, the present invention relates to a group of new enzymes which possess desaturase or elongase activity that can be used in methods of synthesizing long-chain polyunsaturated fatty acids. In particular, the present invention provides ω3 destaurases, Δ5 elongases and Δ6 desaturases with novel activities. Also provided are methods and DNA constructs for transiently and / or stably transforming cells, particularly plant cells, with multiple genes.

The invention relates to the technical field of microbiology and food processing, in particular to pediococcus acidilactici and application of the pediococcus acidilactici in preparation of a brain-intestinal axis regulating efficacy metagen product.The high-activity pediococcus acidilactici DY-1 is separated out from natural fermentation pickles of super-polyselenium plant cardamine violifolia for the first time; the strain can be widely applied to fermentation of high-selenium plant-based food, can significantly promote glycolysis release of selenium-containing active substances, has good acid resistance, high protease activity and high lipase activity, can fully ferment plant-based fermentation raw materials, and has high yield. Glycolysis of macromolecular substances such as protein, saccharides and fat is facilitated, accumulation of active ingredients such as essential amino acid, unsaturated fatty acid, alkaloid and phenolic substances is promoted, and the edibility and functionality of the product are improved; and the organic selenium-rich metagen product prepared by sterilizing the fermentation mixture can synergistically improve human body cognition and emotion regulation regulated by microorganism-intestinal-brain axis.

The invention discloses a method for screening carp dominant parents with high total polyunsaturated fatty acid content. The method comprises the steps that training feature data and training target data are obtained, the training feature data comprise SNP genotype information of a training sample, and the training target data comprise polyunsaturated fatty acid total content information of the training sample; training the ridge regression model by using the training feature data and the training target data to obtain a prediction model; obtaining SNP genotype information of a to-be-detected sample; obtaining a breeding value of the to-be-detected sample according to the SNP genotype information of the to-be-detected sample and the prediction model; and screening the carp dominant parents with the total content of polyunsaturated fatty acids according to the breeding values. According to the method, the breeding value of the carp can be directly obtained according to the SNP genotype information of the sample to be detected and the prediction model, so that dominant parents with high carp polyunsaturated fatty acid content are screened from the sample to be detected, and an excellent material is provided for new carp germplasm identification and breeding.

An object of the present invention is to provide a lactase solution showing good permeation through a filtration filter, a lactase solution showing good permeation through a filtration filter and having a good residual lactase activity, and a lactase solution showing good permeation through a filtration filter and having a good residual lactase activity even when a lactase solution having a low protease activity and a low arylsulfatase activity as contaminant enzymes is used.A lactase solution containing any of (i) to (iii) below.(i) 0.0001 to 0.1 mass % of an unsaturated fatty acid or a salt thereof(ii) 0.0001 to 0.1 mass % of a saturated fatty acid salt(iii) 0.01 to 10 mass % of at least one selected from yeast extract, soybean peptone, pea protein, a casein degradation product, and corn steep liquor

To provide a carbon fiber reinforcement agent which can reinforce a carbon fiber by simple work having low environmental load, a reinforcement carbon fiber using the carbon fiber reinforcement agent, and a carbon fiber sheet which is thin and is excellent in drape property.SOLUTION: A reinforcement carbon fiber contains a carbon fiber, and a carbon fiber reinforcement agent included in the carbon fiber, wherein the carbon fiber reinforcement agent contains a solid resin composed of a polymer of an unsaturated fatty acid or its derivative, and the reinforcement carbon fiber has a void ratio of 5% or less.SELECTED DRAWING: None

The invention provides a method for nondestructive detection of contents of EPA and DHA in adductor muscles of scallops based on Raman spectroscopy, which comprises the following steps: taking a proper amount of gill filament tissues in a survival state of the scallops by using a nondestructive gill filament tissue taking method, preparing into frozen slices, performing Raman laser scanning on the slices to obtain original data, performing pretreatment such as normalization, noise reduction, baseline correction and the like, and determining the content of EPA and DHA in the adductor muscles of the scallops. Selecting a characteristic wavelength, and combining with adductor muscle lipidome data to establish a model for predicting the content of unsaturated fatty acid in adductor muscle in a cross-tissue manner by gill filament Raman data. Compared with an existing method for detecting the content of unsaturated fatty acid in scallops, the method has the advantages that the content of unsaturated fatty acid in rhabdoids of main edible parts of the scallops can be quickly, accurately and simply detected under the condition that the scallops survive, and the detection cost is greatly reduced; an efficient and simple technical means is provided for breeding of shellfish quality characters, and popularization and promotion in comprehensive evaluation and genetic improvement work of aquatic germplasm are facilitated.

The invention provides a negative electrode piece, a battery, an energy storage device and electric equipment, the negative electrode piece comprises a negative electrode current collector, at least one surface of the negative electrode current collector is provided with a negative electrode material layer, and the negative electrode material layer comprises a negative electrode material and a negative electrode binder; the negative electrode binder comprises modified styrene-butadiene rubber particles formed by a styrene-butadiene rubber main chain, long-chain unsaturated fatty acid with the carbon chain length of C14-C24 and an anhydride compound; the average particle size of the modified styrene butadiene rubber particles is D50, and D50 is larger than or equal to 190 nm and smaller than or equal to 210 nm.

The present application discloses a rumen-passed Schizochytrium preparation, a preparation method of the rumen-passed Schizochytrium preparation, and an application thereof. The rumen-passed Schizochytrium preparation comprises a core material and at least one layer of coating, wherein the core material comprises calcium alginate microspheres embedded with Schizochytrium cells, and the coating is coated on the core material so that the oil is wrapped in the calcium alginate microspheres, thereby improving the stability of unsaturated fatty acids and reducing the risk of unsaturated fatty acids leaking in the rumen; the preparation method comprises firstly subjecting the Schizochytrium fermentation product to calcium alginate microsphere embedding and immobilization treatment, then drying the immobilized fermentation product to obtain the core material, and finally coating the core material to obtain the rumen-passed Schizochytrium preparation, effectively avoiding the problems of "pipeline blockage" and "oxidation and deterioration of Schizochytrium powder", thereby improving the yield of Schizochytrium powder in the drying process and simplifying the preparation process, and the finally prepared rumen-passed Schizochytrium preparation has an ideal hardness.

The present disclosure provides a compound for use in therapeutic and / or prophylactic treatment of non-alcoholic steatohepatitis (NASH) and / or alcoholic steatohepatitis (ASH). The compound for use according to the invention, is an unsaturated fatty acid with an oxygen incorporated in the β-position, and further comprising an α-substituent. More particularly, the invention provides a compound for use in treatment of NASH and / or ASH, and a method using this, wherein the compound is of Formula (II), wherein R1, R2, R3, X, and Y are as defined in the specification; and wherein this compound may be administered alone or in combination with an additional active agent.

The disclosure provides methods for increasing saturated, monounsaturated, and poly unsaturated fatty acid production using the PUFA gene cluster plasmid and the gene regulator pfaR.

The invention provides an unsaturated fatty acid modified bio-based nano-composite coated fertilizer and a preparation method thereof, and belongs to the technical field of coated controlled-release fertilizers. The preparation method comprises the following steps: firstly, preparing a silicon-based fatty acid modified halloysite nanotube by taking unsaturated fatty acid, organosiloxane and a halloysite nanotube as raw materials, and preparing semi-cured degradable bio-based polyurethane by taking bio-based polyol, polyester diol and isocyanate as raw materials; the unsaturated fatty acid modified bio-based nano-composite coating material is prepared by modifying halloysite nanotubes, then loading the modified halloysite nanotubes onto the surface of the semi-cured degradable bio-based polyurethane, and heating and curing to obtain the unsaturated fatty acid modified bio-based nano-composite coating material, the coating material has excellent compactness and surface super-hydrophobicity, and the coated fertilizer obtained by compounding the coating material with the fertilizer has excellent controlled release performance.

The present invention provides a method for preparing Maillard polyunsaturated fatty acid oil microcapsules. The method for preparing the polyunsaturated fatty acid oil microcapsules comprises the following steps: (1) dissolving sodium caseinate, glucose and lactose in water and mixing them evenly, adding a moisture retaining agent, adjusting the Maillard reaction pH to 8-10, and obtaining an aqueous phase after the reaction; (2) adding polyunsaturated fatty acid oil to the aqueous phase and emulsifying by shearing; (3) adding cellulose and its derivatives to the system obtained in step (2), and shearing to obtain an emulsion; the content of polyunsaturated fatty acid oil in the polyunsaturated fatty acid oil microcapsules is not less than 40wt%. The preparation method provided by the present invention can improve the rehydration property of the Maillard microcapsule product with high oil content, while ensuring that the product is not over-dried, improving the product sensory properties, and ensuring its sensory stability during the shelf life.