39 results about "Nonanoic acid" patented technology

This invention discloses a method for preparing high-quality bio-based 1,9-nonanediol, comprising the following steps: transesterification, precipitation, fatty acid methyl ester refining, ozone oxidation pyrolysis, solvent recovery, esterification, dimethyl azelaate refining, and hydrogenation to obtain high-quality bio-based 1,9-nonanediol. This invention achieves gradient and full-component utilization of vegetable oil raw materials: the oil-based portion of triglycerides is used to produce high-quality bio-based 1,9-nonanediol, while simultaneously producing byproducts such as methyl palmitate, methyl stearate, propionic acid, hexanoic acid, and nonanoic acid; the glycerol-based portion of triglycerides is used as a byproduct of glycerol production. This invention utilizes esterification to reconstruct the products of ozone oxidation pyrolysis, converting the high-boiling-point monomethyl azelaate into the low-boiling-point dimethyl azelaate, achieving efficient separation from saturated fatty acid methyl esters. The dimethyl azelaate, as a raw material, is then hydrogenated to obtain high-quality nonanediol, significantly reducing production costs.

The invention discloses snowflake cream with pearly luster and a preparation process of the snowflake cream. The snowflake cream comprises the following raw material components: a phase A: water; butanediol; glycerol; methyl glucitol polyether-20; a polyacrylate cross-linked polymer-6; sodium hyaluronate; potassium hydroxide (90%); 4-hydroxyacetophenone; xanthan gum; phase B: caprylic / capric triglyceride; cetostearyl alcohol; stearic acid; a polydimethylsiloxane; squalane; simmondsia chinensis seed oil; mineral oil; and polyethylene glycol (PEG)-100 stearate. Glyceryl stearate; tocopheryl acetate; isononyl isononanoate; a phase C: 1, 2-hexanediol; carnosine; a centella asiatica extract; collagen; the snowflake cream has the advantages of uniform pearly luster texture and the advantages of traditional snowflake cream.

The invention discloses a method for directionally preparing high-purity azelaic acid from oleic acid based on a micro-channel reactor, which comprises the following steps: mixing oleic acid and hydrogen peroxide dissolved with a catalyst, and feeding the mixture into the micro-channel reactor for oxidative cracking reaction to obtain oxidation liquid mainly containing the azelaic acid and the oleic acid; standing and layering the oxidation liquid to obtain a water phase A and an oil phase A; hot water is introduced into the oil phase A containing the nonanoic acid and the azelaic acid for extraction and liquid separation, and a water phase B and an oil phase B are obtained; fractionating the oil phase B to obtain high-purity nonanoic acid; cooling and crystallizing the water phase B to obtain a crude azelaic acid product, and melting and evaporating the crude product to remove moisture to obtain high-purity azelaic acid. Based on the microchannel reactor, hydrogen peroxide is used as an oxidizing agent, oleic acid double bonds can be directionally oxidized through a catalyst system, oleic acid is directly oxidized and cracked into nonanoic acid and azelaic acid in a short time, the reaction efficiency can be greatly improved, the reaction time can be shortened, and the use of a solvent and a phase transfer catalyst is avoided; the method has the advantages of high selectivity, high safety and remarkable environmental protection.

The application discloses a high-yield beta-lyase Pichia kluyveri strain breeding and application in beer fermentation, belonging to the field of bioengineering technology. Pichia kluyveri The Pichia kluyveri (Pichia kluyveri) B21 is preserved in the China General Microbiological Culture Collection Center, and the preservation number is CGMCC No. 34028. The strain can produce high-yield beta-lyase, the enzyme catalyzes the production of volatile mercaptans, and can impart beer fruity aroma. The Pichia kluyveri B21 produces high content of ethyl acetate, isoamyl acetate, isobutyl acetate, ethyl nonanoate, ethyl decanoate, phenethyl acetate, linalool and nerol in hop simulation culture medium, and these volatile substances can increase beer fruity aroma, floral aroma and rich beer flavor. The Pichia kluyveri B21 is expected to be added to the production of other food and beverage to enrich flavor substance components.

This invention provides a palladium extractant and its preparation method. The extractant is prepared from the following raw materials in weight percentages: diisoamyl sulfide: 20-50%, isooctanol: 5-15%, and methyl nonanoate: 50-70%. This palladium extractant has a large capacity, low toxicity, high extraction efficiency, virtually no flocculent formation during back-extraction, stable performance, and long lifespan. The palladium extractant can achieve an extraction efficiency of 99.98%, and the back-extraction rate can reach over 98%.

This invention discloses a method for preparing capsaicin-like substances by temperature-responsive eutectic solvent extraction, comprising the following steps: drying Yunnan chili peppers (after removing stems and seeds), pulverizing, sieving, and collecting the chili powder; mixing lidocaine (HBA) with six alkane-chain carboxylic acids (valerate, hexanoic acid, heptanoic acid, octanoic acid, nonanoic acid, and lauric acid) at a 1:1 molar ratio to form a homogeneous and transparent liquid, TRDES; weighing the chili powder, adding it to the TRDES aqueous solution, and extracting by shaking; after extraction, centrifuging, and diluting the supernatant to obtain capsaicin-like substances. This invention uses temperature-responsive eutectic solvent extraction to prepare capsaicin-like substances, which is simple, highly efficient, and allows for the recycling of extraction reagents, effectively saving resources. It has significant practical and industrial value for promoting the large-scale production of capsaicin-like substances and enhancing their high-value applications.

The invention relates to the technical field of biological medicine, in particular to a cell membrane labeled molecular probe, a preparation method and application of the cell membrane labeled molecular probe in the imaging direction of drug-resistant bacteria, and the preparation method of the cell membrane labeled molecular probe comprises the following steps: step 1, mixing N, N '-carbonyldiimidazole and nonanoic acid for reaction to obtain active ester, tert-butyl (2-aminoethyl) carbamate is added for a reaction, and tert-butyl (2-nonanoylamido ethyl) carbamate is obtained; step 2, the tert-butyl (2-nonanoylamido ethyl) carbamate and trifluoroacetic acid are subjected to a reaction, and N-(2-aminoethyl) nonanoylamides are obtained; 3, at the room temperature, fluorescein isothiocyanate ester, N-(2-aminoethyl) nonanamide and triethylamine are subjected to a reaction, and the molecular probe is obtained. The molecular probe prepared by the invention has a stable chemical structure, is not easy to degrade or decompose in a physiological environment, can maintain long-time fluorescence performance, and is suitable for long-time cell membrane marking and imaging experiments.

The invention relates to the technical field of organic synthesis catalysts, and discloses an isononanoic acid catalyst as well as a preparation method and application thereof. The isononanoic acid catalyst comprises a carrier and an active component loaded on the carrier, the carrier is nitrogen-doped activated carbon; the active components comprise a first active component Au and a second active component; and the second active component is selected from one or more than two of Fe, Co and Ni. The isononanoic acid catalyst is higher in catalytic activity, not prone to inactivation and lower in catalyst cost, and meanwhile the preparation method of the isononanoic acid catalyst is mild in reaction condition and environmentally friendly in process; the isononanoic acid is prepared from isononyl alcohol by adopting the isononanoic acid catalyst, the participation of hydrogen peroxide is not needed, the whole process is safe and efficient, the isononanoic acid catalyst is easy to separate from a product, the post-treatment method is simple, the prepared isononanoic acid is higher in purity, and meanwhile, the isononanoic acid catalyst has higher isononanoic acid selectivity and isononyl alcohol conversion rate.

The invention discloses application of kapok polysaccharide in preparation of a medicine for treating intestinal barrier related diseases, and relates to the technical field of natural medicinal chemistry. According to the invention, the kapok polysaccharide has the function of protecting intestinal barriers for the first time, so that the application field of kapok can be greatly expanded; the extraction process of kapok polysaccharide is also optimized, a three-phase partition method based on a deep-eutectic solvent is provided, the deep-eutectic solvent composed of lauric acid and one of decanoic acid, nonanoic acid and octanoic acid is used for replacing traditional toxic tert-butyl alcohol, an ammonium sulfate salting-out solution is matched, ultrasonic-assisted extraction is combined, the optimal process parameters are defined, and the extraction efficiency is improved. The method has the advantages of being green, safe and free of toxic residues.

The invention discloses a nano cerium oxide-containing cosmetic and a preparation method thereof, and belongs to the technical field of cosmetics, the nano cerium oxide-containing cosmetic comprises the following components by weight: 10-15 parts of an emollient, 2-6 parts of an emulsifier, and 5-10 parts of a sun-screening agent; the emollient is a mixture of isohexadecane, ethylhexyl palmitate, isononyl isononanoate and polydimethylsiloxane, and the emollient is a mixture of isohexadecane and ethylhexyl palmitate; the emulsifying agent is a mixture of PEG-100 (Polyethylene Glycol) stearate, potassium cetyl phosphate and cetostearyl alcohol; the sun-screening agent is a mixture of nano cerium oxide and silicon oxide. According to the invention, nano cerium oxide is adopted as the sun-screening agent, so that the sun-screening film has no characteristic absorption on visible light, is good in permeability and good in ultraviolet ray prevention effect, and can realize full-wave-band protection.

The invention belongs to the technical field of refrigerating machine oil, and particularly relates to isocaprylic acid and isononanoic acid triglyceride and application thereof. The isocaprylic acid and isononanoic acid triglyceride comprises the following raw materials: isocaprylic acid, isononanoic acid, glycerol, an adsorbent and a catalyst, wherein the molar ratio of the isocaprylic acid to the isononanoic acid is 6: (9-14). By adjusting the ratio of isocaprylic acid to isononanoic acid in the raw materials of the isocaprylic-isononanoic triglyceride, the lubricating property of the isocaprylic-isononanoic triglyceride obtained by the reaction is improved, so that the lubricating property, glossiness and air permeability of the isocaprylic-isononanoic triglyceride are similar to or even slightly superior to those of caprylic-capric triglyceride when the isocaprylic-isononanoic triglyceride is used for cream cosmetics.

The invention provides a composition containing oil gel particles and a water-phase matrix and application of the composition, the water-phase matrix contains polyvinyl alcohol, the molecular weight of the polyvinyl alcohol is 20-100 k Da, and the alcoholysis degree of the polyvinyl alcohol is 60-90%; the oil gel particles contain grease, the grease comprises isononyl isononanoate, and the content of the isononyl isononanoate accounts for 10%-45% of the grease in percentage by mass. The composition provided by the invention can give consideration to both fresh and cool skin feeling and good stability.

The invention discloses an emulsifier-free three-state conversion skin care type base makeup composition as well as a preparation method and application thereof.The base makeup composition is prepared from the following raw materials in percentage by weight: 4-10% of polyhydric alcohols, 0.5-4% of modified titanium dioxide, 0.5-4% of a polysiloxane composition, 0.1-1% of carbomer, 0.3-4% of nut seed oil, 1-3% of an emulsion stabilizer, 1-10% of fatty alcohol, 6-12% of polydimethylsiloxane, 0.3-4% of isononyl isononanoate and the balance of water. 0.01-0.05% of glycolipid, 0.1-0.5% of a preservative, and the balance of deionized water. An emulsifier-free stable system is constructed, the stability of the product in the storage and use process can be ensured, the texture characteristic of cloud-mist-water three-state conversion is also achieved, the initial color is soft cloud feeling, the color is fine and smooth mist when smeared, and finally the color is fused into fresh water feeling on the skin surface; the perfect pre-makeup experience of lightness, skin fitting and no mud rubbing is realized.

The invention relates to the technical field of cosmetics, in particular to a PDRN water-in-oil preparation, a preparation method of the PDRN water-in-oil preparation and cosmetics. The PDRN water-in-oil system which is high in stability, good in ductility and good in skin feeling experience is obtained by optimizing the variety and the concentration of the water-phase salt and adjusting the variety and the relative proportion of the oil-phase composition. The preparation is prepared from the following raw materials: water, PDRN, sodium citrate, 1, 2-hexanediol, polyol, isohexadecane, isononyl isononanoate, a vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer, polydimethylsiloxane, octyl polytrimethylsiloxane, an emulsifying agent and a preservative. Experiments show that the PDRN keeps good dispersity and activity in the water-in-oil system, and has good stability. In addition, the PDRN water-in-oil preparation prepared by the invention has good ductility, and is smooth and easy to push away when being smeared.

The invention provides a glufosinate-ammonium and fluoroglycofen-ethyl microemulsion as well as a preparation method and application of the glufosinate-ammonium and fluoroglycofen-ethyl microemulsion. According to the microemulsion disclosed by the invention, the composite solvent of the nonanoic acid and the cyclohexanone is adopted and has good compatibility with the two effective components, so that the problem of preparation stability encountered when the microemulsion is prepared from glufosinate-ammonium is solved. The glufosinate-ammonium-fluoroglycofen-ethyl microemulsion disclosed by the invention can be used for weeding in uncultivated areas, can be used for effectively preventing and treating gramineous weeds, broadleaf weeds and cyperaceae weeds, and has an outstanding effect of preventing and treating weeds with resistance to glyphosate.

The present disclosure relates to elicitors that defend responses in useful plants to establish a natural defense system of a plant against plant pests, where the elicitors are nonanoic acid or derivatives thereof.

The invention provides a thermal response type slow-release composition and application thereof, and belongs to the field of cosmetics or similar dressing preparations. The invention relates to a skin care product which comprises 1, 3-propylene glycol, hydroxy propyl cellulose, isononyl isononanoate, C10-18 fatty acid triglyceride and a freshener. The thermal response type slow-release composition provided by the invention overcomes the defects that the traditional freshener is short in cool feeling lasting time and easy to volatilize and lose; and the coating has good stability, can be well compatible with various application substrates, and is not easy to lose efficacy due to volatilization or migration in the storage and use processes. The thermal response type slow-release composition provided by the invention is a novel freshener which is high in cool feeling strength, long in duration time and stable in application performance, so that the urgent requirements of the fields of high-end textiles, durable daily consumer goods and the like on a long-acting cooling function are met.

Superabsorbents comprising pelargonic acid or its salt exhibit superior odor control.

The invention discloses a preparation method of unsaturated fatty acid cis-9-tetradecenoic acid, and belongs to the technical field of organic compound preparation. The preparation method provided by the invention comprises the following steps: reacting azelaic acid monomethyl ester with a borane reagent to obtain 9-hydroxy methyl nonanoate; then, the 9-formyl methyl nonanoate reacts with a Dess-Martin oxidizing agent, and 9-formyl methyl nonanoate is obtained; then reacting with n-amyl triphenyl phosphorus bromide or diethyl amyl phosphonate in the presence of bis (trimethylsilyl) sodium amide, so as to obtain cis-9-tetradecenoic acid methyl ester; and finally, carrying out hydrolysis reaction to obtain the cis-9-tetradecenoic acid. According to the method disclosed by the invention, the high-purity cis-9-tetradecenoic acid is efficiently and highly selectively prepared by taking the cheap and easily available monomethyl azelate as a starting raw material through key steps of reduction, oxidation, high-selectivity Wittig alkylenation and the like, and large-scale production is facilitated.

The present disclosure provides antimicrobial compositions comprising phenoxyethanol, benzyl alcohol, or a combination thereof, and nonanoic acid and / or a salt thereof as antimicrobial agents, and further provides uses and uses of the antimicrobial compositions of the present disclosure in product formulations, particularly personal care formulations and home care formulations.

The present invention provides an oily solid cosmetic containing: component (1): one or more types of wax selected from the group consisting of plant-based waxes that are solid at 25 DEG C and animal-based waxes that are solid at 25 DEG C; and component (3): an oligoester. A method for producing a composition containing glycerin as component (A), a dicarboxylic acid having 2-12 carbon atoms as component (B), one or more fatty acids selected from the group consisting of caprylic acid, ethylhexanoic acid, isononanoic acid, isohexadecanoic acid and isostearic acid as component (C), and one or more fatty acids selected from the group consisting of C10 fatty acids as component (D) The present invention is characterized by being obtained by carrying out an esterification reaction on one or more fatty acids selected from among 1, 24, linear saturated fatty acids of component (B) and component (C) and component (D), said esterification reaction being carried out by adding 0.65-0.8 mol of component (B) and 1.2-1.7 mol of the total amount of component (C) and component (D) to 1 mol of component (A). The mass ratio of the component (C) to the component (D) used in the esterification reaction is 10: 90-99.9: 0.1, the acid value is 5 mgKOH / g or less, the saponification value is 420-510 mgKOH / g, and the hydroxyl value is 60 mgKOH / g or less.

This invention discloses a medium-chain fatty acid disinfectant for meat products, its preparation method, and its application. The medium-chain fatty acid disinfectant for meat products, by weight, comprises 0.1-1 parts acidifier, 4-6 parts medium-chain fatty acid, 25-35 parts solubilizer, 10-20 parts plant-derived surfactant, and 38-61 parts water. The medium-chain fatty acid includes at least one of caprylic acid, nonanoic acid, and capric acid, and the solubilizer includes lactic acid. This invention's medium-chain fatty acid disinfectant for meat products uses medium-chain fatty acid as the main bactericidal component, combined with a solubilizer and a plant-derived surfactant. The synergistic solubilization effect of these two components enhances the solubilization effect of the medium-chain fatty acid, further improving the bactericidal effect. Therefore, this invention's medium-chain fatty acid disinfectant maintains excellent bactericidal effect even at low concentrations, and because of the low concentration, it does not cause yellowing of the meat product surface.

The application discloses a compound nonanoic acid 4-methyl-5-thiazole ethyl mercaptide, and a specific chemical structural formula is shown in the following formula: the aromatic compound is mainly applied to food essence.

The present application relates to the field of cosmetics, especially to an anti-aging essence and a preparation device, which is composed of A phase, B phase, C phase and D phase, and the components of each phase are as follows according to weight percentage: A phase: deionized water 16.15%, rose hydrolat 18.00%, propylene glycol 5.00%, glycerol 4.00%, xanthan gum 0.15%, carbomer 940 0.10%, panthenol (vitamin B5) 2.00%, boswelia (30% aqueous solution) 10.00%, ikedoin 2.00%, nicotinamide 2.00%, sodium hyaluronate compound 0.50%; B phase: polyglyceryl-6 distearate 1.20%, squalane 3.00%, isononyl isononanoate 2.00%, octyldodecanol 5.00%, rosehip oil 0.50%, argan oil 0.50%, ceramide compound powder 0.50%, cholesterol 0.30%, free fatty acid (C18-C22) 0.20%, Transcutol P 4.00%, oleanolic acid (ligustrum lucidum extract) 0.50%, plant extract compound liquid 5.00%, ergothioneine 0.30%. The advantages are that the active ingredient utilization rate is improved, the efficacy is comprehensive and the synergistic effect is strong, and the preparation device can make the mixing of each component more uniform, greatly improving the mixing efficiency.

The invention discloses a preparation method of high-quality bio-based 1, 9-nonanediol, which comprises the following steps: sequentially carrying out transesterification reaction, sedimentation, fatty acid methyl ester refining, ozone oxidation cracking reaction, solvent recovery, esterification reaction, dimethyl azelate refining and hydrogenation reaction on raw material vegetable oil to obtain the high-quality bio-based 1, 9-nonanediol. Gradient and full-component utilization of vegetable fat raw materials is achieved, the fat-based part of triglyceride is used for producing high-quality bio-based 1, 9-nonanediol, and meanwhile byproducts such as methyl palmitate, methyl stearate, propionic acid, hexanoic acid and nonanoic acid can be produced; the glyceryl moiety of the triglyceride is used to byproduct a glycerol product. According to the present invention, the esterification reaction is adopted to reconstruct the ozone oxidation cracking reaction product, the azelaic acid monomethyl ester with the high boiling point is converted into the azelaic acid dimethyl ester with the low boiling point so as to achieve the efficient separation of the azelaic acid monomethyl ester and the saturated fatty acid methyl ester, the azelaic acid dimethyl ester is adopted as the raw material, and the hydrogenation reaction is performed to obtain the high-quality nonanediol product so as to substantially reduce the production cost.

The present invention relates to compositions comprising n-nonanoic acid esters of xylitol and / or sorbitol, to methods for their production, to formulations comprising them and to their use.

The invention relates to an isononanoyl chloride composition and application of an initiator of the isononanoyl chloride composition. The isononanoyl chloride composition comprises isononanoyl chloride and 50-500 ppm of isononanoic acid. The peroxide (3, 5, 5-trimethyl hexanoic acid) tert-butyl ester and peroxide bis (3, 5, 5-trimethyl hexanoyl) initiator prepared from the isononanoyl chloride composition provided by the invention has excellent product reaction activity.

This invention relates to a composition comprising an aqueous phase gelled with a mixture of at least 1.5% by weight of a crosslinked acrylic homopolymer and a 2-acrylamido-2-methylpropanesulfonic acid homopolymer; an aliphatic phase comprising a volatile hydrocarbon oil, a non-volatile hydrocarbon oil selected from fatty amides, and a non-volatile hydrocarbon oil selected from isononanoates, synthetic ethers containing 10 to 40 carbon atoms, and / or carbonates; a surfactant selected from glycerides; a filler selected from amino acid powders and solid cellulose beads; and at least 5% by weight of ascorbic acid and / or its derivatives relative to the total weight of the composition.

The present invention addresses the problem of providing a technology for enhancing taste thickness of a packaged beverage.　The problem is solved by adding ethyl nonanoate at a concentration of 5-5,000 ppb to a packaged beverage. The beverage may have an alcohol content of 0-9 v / v%. The beverage may or may not contain a sweetener component. The beverage may have a fruit juice content of 13 w / v% or less. The beverage may or may not contain carbon dioxide.

The present invention relates to a composition comprising saturated nonanoic acid or a salt of saturated nonanoic acid, at least one monounsaturated nonanoic acid and at least one emulsifier, a process for the preparation of said composition and the use of said composition in weed control applications.