19 results about "Octadecenoic Acid" patented technology

The invention relates to the technical field of genetic engineering, in particular to a gene for biosynthesis of (Z)-13-octadecenoic acid and application of the gene. The invention discloses a gene for biosynthesis of (Z) 13 octadecenoic acid. An amino acid sequence coded by the gene is as shown in SEQ ID NO: 1. The invention finds that the (Z)-13-octadecenoic acid can be synthesized by jointly expressing the protein with the amino acid sequence shown as SEQ ID NO: 1, hexadecanoic acid specific thioesterase and Z11 desaturase in plants. The process of synthesizing the (Z)-13-octadecenoic acid by using plants is green and pollution-free, the purification is simple and convenient, the environmental pollution degree is low, and the extraction purity is high.

The invention provides a polymer cationic asphalt emulsifier as well as a preparation method and application thereof. According to the preparation method of the polymer cationic asphalt emulsifier, three monomers including 9-octadecenoic acid methyl ester, maleic anhydride and p-vinyltoluene are utilized to react to obtain the polymer cationic asphalt emulsifier. Based on a free radical polymerization technology, various functional groups (long-chain alkyl, a methyl styrene chain, imidazoline and the like) are integrated into a single polymer skeleton, so that the interfacial activity of an emulsifier is expected to be improved, the stability and the use performance of emulsified asphalt are improved, high efficiency and economical efficiency are achieved, and the development trend of green road materials is met. Compared with a traditional asphalt emulsifier, the polymer cationic asphalt emulsifier has higher surface activity and excellent high and low temperature stability.

This invention discloses an energy-enhancing water-based fracturing fluid, its preparation method, and its application, relating to the field of oilfield fracturing fluid technology. The preparation method includes: adding N,N-dimethylformamide as a solvent, then adding 2,3-epoxypropyl octadecenoic acid and acetic acid, followed by post-treatment to obtain solid intermediate monomer I; mixing sodium bisulfite with water and adding monomer I, along with an appropriate amount of catalyst, followed by treatment after the reaction to obtain intermediate monomer II; adding a zirconium salt solution of zirconium oxychloride dropwise to the monomer II solution and adjusting the pH to obtain a crosslinking agent. The crosslinking agent is then added to a guar gum thickener for crosslinking to obtain the fracturing fluid. The fracturing fluid uses viscosity-reducing molecules as ligands to synthesize an organozirconium crosslinking agent. During the crosslinking process, the original coordination bonds in the crosslinking agent break, releasing viscosity-reducing molecules, thereby enhancing the strength, solubility, and emulsifying and dispersing ability of the crosslinking agent. This imparts viscosity-reducing capabilities to the fracturing fluid, simplifying the process, shortening the time, and improving efficiency.

A method to synthesize a silver nanohybrid material. The method includes mixing a nitrate solution with a citrate solution to form silver nanoparticles (AgNPs). The method further includes esterifying a first mixture including octadecanoic acid, octadec-9-enoic acid, and octadeca-9,12-dienoic acid with caffeic acid in the presence of an acid catalyst and a solvent to form an unsaturated carboxylic acid mixture including first, second, and third acrylic acid derivatives. The method includes reacting the unsaturated carboxylic acid mixture with ethylene glycol to form a second mixture including first, second, and third ester derivatives. The method further includes mixing the AgNPs with the second mixture to form a third mixture. The method includes evaporating water from the third mixture to form the silver nanohybrid material. The silver nanohybrid material includes a AgNP core covered with the first, second, and third ester derivatives bonded to the AgNP core.

The invention belongs to the technical field of energy, and in particular relates to a biological blended fuel which comprises the following components: methyl palmitate, octadecane-9. 12-dienoic acid methyl ester, cis-11-octadecenic acid methyl ester, 2-methyl undecane, 3-methyl undecane, 3, 6-dimethyl decane, 3.7-dimethyl decane, 3, 8-dimethyl-undecane, 3, 8-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, 6-dimethyl decane, 3, the preparation method comprises the following steps: adding 1, 10-methyl eicosane, 2, 5-dimethyl dodecane, 5-methyl tridecane, 4-methyl-tridecane, 2-bromododecane, 3-methyl-5-propyl nonane, 3-methyl-tetradecane, n-nonane, 6-methyl undecane, 2, 5-dimethyl decane, C16H34, 5-methyl-tetradecane, 7-methyl heptadecane, 4-methyl tetradecane, 3-methyl-tetradecane and 2.5-dimethyl tridecane into a reaction kettle; methyl tetradecane, n-pentadecane and tetradecane; according to the invention, 10-methyleicosane and 5-methyltetradecane are used for providing a high volume calorific value, and the flame temperature is improved compared with that of common biodiesel.

The present invention relates to an alcoholic beer having an ethanol content of at least 1% ABV and containing 9 (S), 12 (S), 13 (S)-trihydroxy-10 (E)-octadecenoic acid (TOA) and free amino nitrogen (FAN) in a ratio of less than 0.035 mg TOA / mg FAN. The inventors have found that aging of alcohol-containing beer during storage can be retarded by selectively removing 9 (S), 12 (S), 13 (S)-trihydroxy-10 (E)-octadecenoic acid (TOA) from wort prior to fermentation. Another aspect of the invention relates to a method for preparing beer, comprising the following consecutive steps:-providing wort; -contacting the wort with a ZSM-5 zeolite; -separating the treated wort from the ZSM-5 zeolite; -fermenting the treated wort with a yeast to produce a fermented wort having an alcohol content of at least 1% ABV; and-separating the yeast from the fermented wort.

The invention discloses a powder depolymerization material, which is prepared from the following raw materials in parts by weight: 10 to 30 parts of nanometer ultrafine powder, 5 to 15 parts of stearate, 3 to 10 parts of octadecenoic acid, 1 to 5 parts of coupling agents, 20 to 40 parts of isopropanol, 2 to 8 parts of graphene nanosheets, 1 to 6 parts of nanometer titanium dioxide photocatalysts and 3 to 9 parts of bio-based lubricants. The nano ultrafine powder comprises the following components in parts by weight: 2-6 parts of nano boron nitride, 1-4 parts of polyethyleneimine, 1-3 parts of chitosan quaternary ammonium salt, 3-8 parts of nano montmorillonite and 0.5-2 parts of dopamine, and the nano ultrafine powder is a metal oxide, a carbon nanomaterial or an inorganic non-metallic material with the particle size of 1-100nm. By means of the high specific surface area and activity of the nano ultrafine powder, the interaction between the nano ultrafine powder and a powder material is enhanced, and the depolymerization effect is remarkably improved; the polyethyleneimine forms hydrogen bonds with hydroxyl groups on the surface of the nano ultrafine powder through amido, and the depolymerization efficiency of the nano powder is improved by 35%; nano boron nitride and graphene nanosheets form a double-two-dimensional lubricating network, so that the friction coefficient among powder particles is reduced by 40%, and the depolymerization resistance is reduced.

The invention relates to a modified vegetable oil comprising, in percentages by weight expressed relative to the total weight of the free fatty acids in the modified vegetable oil, at least 10% of 13-hydroxy-9(Z)-octadecenoic acid (13-HOD). The invention also relates to a method for preparing a modified vegetable oil, comprising the following steps: - hydrolysis by biocatalysis in the presence of a lipase of the triglycerides of the vegetable oil in order to obtain linoleic acid in free form; - hydration by biocatalysis in the presence of a linoleic acid hydratase in order to obtain the modified vegetable oil.

The application discloses a motor lubricating grease composition, which comprises a thickening agent, base oil and an additive, and specifically, the thickening agent is 10-15%, the base oil is 85-90%, and the sum of the mass percentages of the two is 100%; the additive is additionally added in a proportion of 1-5%; the thickening agent is composed of mixture A and mixture B; a) the mixture A is a reactant of dodecahydroxy stearic acid, organic dibasic acid and saturated aqueous solution of lithium hydroxide monohydrate, and the molar ratio of the dodecahydroxy stearic acid to the organic dibasic acid is 1:0.1-1; b) the mixture B is an amide compound, and the amide compound is a mixture of one or more of dodecanamide, hexadecanamide, octadecanamide, octadecenoic acid amide, docosanamide, docosenoic acid amide, N,N-dimethyl dodecanamide and N,N'-ethylene bis-stearamide in an arbitrary ratio. The application can effectively prolong the service life of the lubricating grease, prolong the grease replenishing period and prolong the service life of the motor.

An aerosol generating material comprising at least two non-tobacco botanical materials, the aerosol generating material produces an aerosol when heated, the aerosol comprising: a first compound selected from the list consisting of: 2-methoxy- phenol, 2-methoxy-4-vinylphenol, vanillin, benzeneacetic acid, phenylethyl alcohol, maltol, and combinations thereof; and a second compound selected from the list consisting of: D-limonene, alpha-terpineol, levomenthol, menthol, 3-methyl butanoic acid, 2-methoxy phenol, terpinene-4-ol, 6-methyl-5-hepten-2-one, 1H-pyrrole-2- carboxaldehyde, alpha-methyl-benzenemethanol, theobromine, octadecanoic acid, n- hexadecanoic acid, methyl-ester-hexadecanoic acid, butyrolactone, caffeine, 9- octadecenoic acid, furfural, 2-methyl butanoic acid, 2,3-dihydrobenzofuran, 2- heptadecanone, and combinations thereof.

The invention relates to a cosmetic composition comprising a modified vegetable oil containing 13-hydroxy-9(Z)-octadecenoic acid. The cosmetic composition is used for stimulating hair growth and for repairing hair fibres.

The invention discloses high-toughness halogen-free flame-retardant PBT (polybutylene terephthalate), which is prepared from the following raw materials in parts by weight: PBT, a toughening agent, a halogen-free flame retardant, a functional aid and a processing aid, the functional auxiliary agent comprises phenyl-containing siloxane, a compound containing a functional group and a catalyst; the siloxane containing phenyl is selected from one or more of octaphenylcyclotetrasiloxane, hexaphenylcyclotrisiloxane, diphenyl siloxane and phenyltrimethoxysilane; the siloxane containing phenyl is selected from one or more of octaphenylcyclotetrasiloxane, hexaphenylcyclotrisiloxane, diphenyl siloxane and phenyltrimethoxysilane; the compound containing the functional group is selected from one or more of dimethyl carbonate, diethyl carbonate and diphenyl methyl carbonate; the catalyst is selected from one or more of methyl allyl tri-n-butyltin, copper octadecenoate, tetramethylammonium hydroxide and tetrabutyl phosphorus hydroxide. According to the invention, the functional auxiliary agent with special composition is matched with the flexibilizer with specific composition, so that the notch impact strength and flame retardant property of PBT are remarkably improved, and meanwhile, relatively high tensile strength of the PBT is ensured.

This invention relates to the field of genetic engineering technology, and more particularly to a gene for the biosynthesis of (Z)-13-octadecenoic acid and its application. A gene for the biosynthesis of (Z)-13-octadecenoic acid is provided, the amino acid sequence of which is shown in SEQ ID NO: 1. This invention discovers that expressing a protein with the amino acid sequence shown in SEQ ID NO: 1 in plants in conjunction with a hexadecimal fatty acid-specific thioesterase and a Z11 desaturase can synthesize (Z)-13-octadecenoic acid. The process of synthesizing (Z)-13-octadecenoic acid using plants is green and pollution-free, purification is simple and convenient, environmental pollution is low, and the extraction purity is high.

The invention relates to the technical field of building materials, in particular to an anti-permeability reinforced bare concrete material and a preparation method thereof. The impervious reinforced bare concrete material is prepared from the following raw materials in parts by weight: 300 to 400 parts of a cementing material, 950 to 1100 parts of coarse aggregate, 700 to 900 parts of fine aggregate, 80 to 110 parts of fly ash, 30 to 40 parts of silica fume, 40 to 50 parts of mineral powder, 2 to 4 parts of a water reducing agent, 6 to 10 parts of an impervious additive and 180 to 240 parts of water, according to the invention, under the synergistic effect of the sodium 3-allyloxy-2-hydroxy propanesulfonate and the cis-octadecene-9-acid, a densely staggered three-dimensional hydrophobic network is formed on the surface of the spherical carrier and in the inner wall of the porous structure of the spherical carrier, so that the prepared anti-seepage additive and the concrete material have excellent anti-seepage performance; in addition, the prepared fair-faced concrete material also has excellent mechanical properties and frost resistance, the quality of the fair-faced concrete material is effectively guaranteed, and the service life of the fair-faced concrete material is prolonged to a certain extent.

The invention belongs to the technical field of hippophae rhamnoides leaf utilization, and particularly relates to application of a hippophae rhamnoides leaf extract in preparation of a medicine for reducing blood sugar and blood lipid. Experiments find that 33 compounds, mainly including fatty acid compounds, flavonoid compounds, phenolic acid compounds and tannin compounds, are identified in the hippophae rhamnoides leaf extract obtained through double-solvent extraction. Network pharmacological analysis results show that core components for reducing blood sugar and lipid in the SLE mainly comprise crowndaisy chrysanthemum acid, malvacic acid, aspartic acid and 6-octadecenoic acid, the number of acting core targets is 43, and main involved channels comprise lipid and atherosclerosis, a PI3K-Akt signal channel, an AGE-RAGE signal channel in diabetic complications and an HIF-1 signal channel.

The invention relates to the technical field of daily chemical industry, in particular to high-activity brushing-free washing powder and a preparation method thereof. The washing powder is prepared from the following raw materials in parts by weight: 1 to 2 parts of anhydrous sodium sulfate, 10 to 15 parts of anhydrous sodium metasilicate, 15 to 20 parts of ethylenediamine tetraacetic acid tetrasodium salt, 3 to 5 parts of lauryl sodium sulfate, 1 to 2 parts of compound protease, 5 to 10 parts of iso-tridecanol polyoxyethylene ether, 6 to 8 parts of cis-9-sodium octadecenoate and 5 to 8 parts of citric acid. According to the washing powder disclosed by the invention, through the synergistic effect of carefully proportioned cis-9-sodium octadecenoate, anhydrous sodium sulfate and compound protease, the decontamination capability and activity of the washing powder are remarkably improved, and the three components are combined to form an efficient compound decontamination system, so that the washing powder can achieve an excellent decontamination effect at low concentration; the requirement for mechanical external force in the washing process is reduced, a user only needs to soak or softly wash, the powerful decontamination effect can be achieved, the user does not need to rub and brush forcefully, and scrubbing-free effect is achieved.

The application discloses a super-fine particle grade ilmenite flotation collector and application thereof. The super-fine particle grade ilmenite flotation collector provided by the application comprises the following components in percentage by mass: octadecenoic acid 48-70%, fatty alcohol polyoxyethylene ether carboxylate 14-24%, polypropylene glycol 2-5%, octanoyl hydroxamic acid 5-8%, and fatty alcohol phosphate ester potassium salt 9-15%. The super-fine particle grade ilmenite flotation collector provided by the application has good dispersibility, utilizes the advantages of various chemical groups, and produces a co-adsorption effect between the groups and mineral surface particles. In the use process, the flotation collector can be rapidly dispersed in the ore pulp, and TiO2 grade 46.81%, yield 27.95% and recovery rate 81.16% of titanium concentrate products can be effectively selected from the super-fine particle grade ilmenite raw material, so that the utilization rate of titanium resources is greatly improved.

This invention discloses a longevity biomarker based on serum metabolomics and its application, belonging to the field of biomedical technology. The longevity biomarker disclosed in this invention, based on serum metabolomics, includes mandelic acid, glutethimide, fenmetrazine, hydroxyheptanoic acid, norfloxacin, N-acetylserotonin, 3,4-methylenedioxyphenylamine, palmitoleic acid, cinconidine, gulonose, 5-aminopentanal, 12,13-dihydroxy-9Z-octadecenoic acid, anserine, (3Z)-phytochrome bile, phytocyanin, and L-selenomethylselenocysteine. This invention provides new biomarkers for diagnosing healthy aging and predicting human lifespan, and can be used to prepare products that predict the likelihood of longevity, showing promising applications in the field of anti-aging and health.

The invention belongs to the field of textile assistants, and provides an emulsified wool lubricating oil, a preparation method thereof and an application of the emulsified wool lubricating oil in improving the performance of textiles. The emulsified wool lubricating oil is prepared from the following components: mineral oil, 9-octadecenoic acid methyl ester, fatty acid polyoxyethylene ether, castor oil polyoxyethylene ether, sorbitol oleate, polyethylene glycol laurate, isothiazolinone, permethrin and an auxiliary agent. The emulsified wool lubricating oil further comprises one or two of natural plant extracted flavonoids and 3-(trimethoxysilyl) propyl dimethyl octadecyl amine chloride. The emulsified wool lubricating oil provided by the invention has mothproof, antibacterial and enzyme-proof effects on textiles, meets the market requirements, and fills up the market blank.