58 results about "Ethyl laurate" patented technology

The invention discloses a method for promoting aging of fruit-type white spirit under actions of infrared assisted ultrasonic and a pulse electric field, which comprises the following steps: fermenting full fruit juice, distilling to obtain fruit-type white spirit, treating under the actions of infrared rays and ultrasonic for 5-15 minutes while controlling the temperature at 40-60 DEG C, ultrafiltering with an ultrafiltration membrane with the pore size of 0.02-0.05 mu m to obtain an ultrafiltrate, treating the ultrafiltrate under the action of a pulse electric field with the electric field intensity of 30-50 kV / cm, quickly cooling the liquor subjected to electric field treatment to 0-5 DEG C, keeping for 12-20 hours, and heating to normal temperature to obtain the fruit-type white spirit with soft mouthfeel. The fruit-type white spirit treated by the method has typical fruit odor and soft and thick mouthfeel; and the content of ethyl acetate, ethyl propionate, ethyl lactate, ethyl laurate, phenethyl alcohol and other aroma substances is enhanced by 50-70% as compared with the untreated white spirit, the heady fusel oil component is reduced by 40-60%, and all the components are close to the indexes of the 5-year-aged white spirit. The method has the advantages of time saving, labor saving and low cost.

A prostaglandin E composition comprises are substantially free from C1-C4 alcohols and include the prostaglandin E compound together with a (C1-C4)-alkyl (C8-C22) carboxylic ester (e.g., ethyl laurate), an N,N-di(C1-C8) alkylamino substituted, (C4-C18) alkyl (C2-C18) carboxylic ester and / or a pharmaceutically acceptable addition salt thereof, and optionally, a viscosity enhancing agent such as guar gum. The prostaglandin E composition can be combined with an aqueous alcoholic diluent to form a pharmaceutical composition for topical application to a patient, for example, to treat sexual dysfunction. The prostaglandin E compositions are stable for prolonged periods of storage at room temperature.

The invention provides pesticide mother solution, a preparation method and an application thereof. The pesticide mother solution comprises the following components in percentage by weight: 0.1-40% ofactive ingredient A expressed in the formula Xa, 10-98.9% of solvent B of the mixture of one or more than two of glutaric acid diisopropyl ester, adipic acid diisopropyl ester, adipic acid-di-n-butylester, ethyl laurate, dodecanoic acid normal propyl ester, isopropyl myristate, tirbutyl citrate or acetyl tributyl citrate; 1-50% of another solvent ingredient C. The pesticide mother solution of theinvention still can maintain stability at low temperature, and can be more convenient for being used in cold regions.

The invention provides a saccharomyces cerevisiae strain with high yield of flavor ethyl ester and a construction method of the saccharomyces cerevisiae strain. An encoding gene FAS1 of a strong promoter PGK1 over-expressed fatty acid synthetase beta subunit is selected, an inositol-mediated controlling gene OPI1 is knocked out, and the saccharomyces cerevisiae strain with high yield of flavor ethyl ester is obtained. Compared with original strains, the strain has the following advantages under the condition that other fermentation performance of the strain is basically not affected: the content of ethyl acetate reaches 52.49 mg / L and is increased by 2.61 times than that of the original strains after 5 days of simulated liquid-state liquor fermentation of a corn material; the content of medium-chain fatty acid ethyl ester ethyl caproate, the content of ethyl caprylate, the content of ethyl caprate and the content of ethyl laurate are increased by 1.21 times, 2.66 times, 2.53 times and 1.27 times respectively than those of the original strains; the content of long-chain fatty acid ethyl ester ethyl myristate and the content of ethyl palmitate are increased by 1 time and 56.7% respectively.

The invention discloses a cream enzymolysis composition. The composition is characterized by comprising, by weight, 0.3-0.8 part of acetic acid, 4-6 parts of butyric acid, 2-3 parts of caprylic acid, 6-8 parts of decylic acid, 4-7 parts of dodecanoic acid, 3-5 parts of myristic acid, 6-8 parts of palmitic acid, 0.1-0.2 part of s-methyl butyrate, 1-2 parts of ethyl lactate, 0.3-0.6 part of ethyl caprate, 1-3 parts of ethyl laurate, 1-3 parts of gamma-decalactone, 1-2.4 parts of gamma-onalactone, 6-8 parts of delta-decalactone, 1-3 parts of gamma-unsecalactone, 0.3-1 part of butanedione, 1-2 parts of butanone alcohol, 6-8 parts of MHT, 3-4 parts of methyl-5-thiazoleethanol acetate, 2-3 parts of vanillin, 1-2 parts of ethyl vanillin and 20-50 parts of propylene glycol. According to the composition and a preparation method thereof, an alternative solution is provided for equipment and conditions required by producing natural enzymolysis cream products, the problem of unstable aroma of the natural enzymolysis cream products is solved, the production process is simple, the raw materials are easy to acquire, batch production can be achieved, requirements for mass production are satisfied, and the applicability is high.

The invention discloses an adhesive for floor and a preparation method of the adhesive, and relates to the technical field of adhesives. The adhesive is prepared from the following raw materials: 85-95 parts of reactive resin, 55-57 parts of paraffin phase change microspheres, 45-50 parts of corn starch, 40-42 parts of polyvinyl alcohol, 25-35 parts of nanometer titanium dioxide, 20-25 parts of nano-alumina, 18-20 parts of a gelatinizing agent, 15-17 parts of filler, 10-15 parts of tricyclodecenyl acetate, 10-13 parts of ethyl laurate, 5-10 parts of an acid solution, 15-20 parts of an aid and 80-10 parts of deionized water. The adhesive has relatively high adhesive strength and high curing speed, facilitates construction and is safe and environmentally friendly.

The invention discloses a linen-imitation finishing agent and a preparation method thereof. The linen-imitation finishing agent comprises the following components in parts by weight: 3-8 parts of chitosan, 1-3 parts of hydroxyethyl cellulose, 10-20 parts of acetic acid, 1-3 parts of zinc borate, 3-8 parts of polyvinyl alcohol, 2-4 parts of N-dodecyl sodium alanine, 1-3 parts of dimethylamino ethyl laurate, 10-20 parts of alcohol, 10-20 parts of laurinol and 80-100 parts of water. Compared with the prior art, the linen-imitation finishing agent has the following beneficial effects: (1), the linen-imitation finishing effect is good, and the washing resistance and the alkali resistance are good; and (2), the surface of the fabric is not damaged, and the finishing agent is non-toxic and innocuous to a human body.

The invention discloses an attractant for a carpomya-vesuviana-costa adult and application thereof. The attractant is prepped from one or more of myristic acid, ethyl myristate, ethyl laurate, ethyl palmitate, a mixture, ethyl linoleate and ethyl oleate. When the attractant is applied, different formulas of the attractant are provided aiming at carpomya-vesuviana-costa male adult and female adult; a jujube-fruit volatile matter is adopted as the attractant and used by matching with a yellow insect sticky trap; the attractant has the characteristics of being good in attraction effect and high in specificity and having no adverse influences on an environment; the attraction activity, to carpomya vesuviana costa, of six substances in the formulas are tested respectively with a four-arm olfactometer; shown by results, the female carpomya vesuviana costa has higher selection rates, which are all 30 percent or above, to the ethyl palmitate, the ethyl laurate and the myristic acid; the male carpomya vesuviana costa has higher selection rates, which are all 25 percent or above, to the ethyl linoleate and the ethyl oleate. Through continuous 8d monitoring in field, the attraction effect of the volatile matter myristic acid is better; the maximum trapping quantity is up to 23 carpomya-vesuviana-costa adults per trapper and the average trapping quantity is 18.2 carpomya-vesuviana-costa adults per trapper.

The present invention discloses a cheese flavor containing food additive as well as a preparation method and application thereof. The cheese flavor containing food additives comprise the following components in mass percentage: 0.1-0.5% of 3-methylthiopropanal, 0.1-1% of 3-methylthio-propanol, 0.1-0.5% of 2-undecanone, 0.5-1% of 2-heptanone, 0.1-0.5% of 2-nonanone, 10-15% of anhydrous butter hydrolysates, 0.1-1% of ethyl vanillin, 1-2% of vanillin, 0.1-0.5% of delta-decalactone, 1-5% of butyl butyryl lactate, 0.8% of delta-dodecalactone, 0.3-0.6% of ethyl laurate, 0.01-0.1% of ethyl acetate, 0.1-0.5% of ethyl caprate, 0.1-0.5% of oleic acid, and 70-85% of soybean oil. The addition of the anhydrous butter hydrolysates enables the cheese flavor containing food additives to be richer and more delicate in aroma. When the anhydrous butter hydrolysates are added during the food production process, the resulting product is lifelike and natural in cheese fragrance, and is excellent in mouthfeel. The food additives are zero trans-fatty acids which can meet the dual demands of people for delicacy and fitness.

The invention discloses a reed leaf essence and a preparation method thereof. The reed leaf essence is prepared by mixing and then uniformly stirring the following components by mass percent: isophorone, 1% cis-4-hepen-1-al, vanillin, 10% ethyl myristate, 1% ethyl laurate, 2,4-dimethyl-5-acetyl thiazole, 1% 2,5-dimethyl pyrazine, 1% methyl cyclopentenolone, 1% 2-acetyl pyridine, mercaptan, leaf alcohol, sulfurol acetate, nonanal, 1% oxoisophorone, 20% furanone, ethyl maltol, maltol, vanilla bean tincture and a solvent. The raw materials used by the reed leaf essence are readily available, and the obtained reed leaf essence has a fresh, harmonious and soft fragrance, and a typical aroma of natural reed leaves, and is rich, lasting and stable in fragrance. The reed leaf essence can be used for flavoring rice dumplings, ice cream, cake and other foods.

The present invention relates to a feed fragrance agent having cream biscuit fragrance, and a preparation method thereof. The feed fragrance agent comprises the following components, by weight, 30-80 parts of enzymolysis cream, 15-30 parts of butyl butyryl lactate, 0.2-1.5 parts of acetylpyrazine, 8-15 parts of ethyl laurate, 3-8 parts of gamma-octalactone, 8-15 parts of gamma-nonanolactone, 6-15 parts of gamma-decalactone, 6-15 parts of delta-decalactone, 2-10 parts of delta-dodecalactone, 30-80 parts of ethyl vanillin, and 500-900 parts of a carrier. Compared with the feed fragrance agent in the prior art, the feed fragrance agent of the present invention has advantages of pure fragrance, good compatibility with the feed, good palatability, covering of adverse odors caused by feed raw materials and various additives, and the like.

The invention relates to a toffee-flavored flavoring agent and a preparation method thereof. The flavoring agent consists of the following components in parts by weight, totaling 100 parts: 0.05-3 parts of butyric acid, 0.2-0.8 part of butyryl butyl lactate, 0.1-0.5 part of ethyl lactate, 0.05-0.5 part of ethyl butyrate, 0.5-3 parts of ethyl laurate, 0.8-2 parts of gamma-nonalactone, 0.1-1 part of gamma-decalactone, 0.2-3 parts of delta-decalactone, 0.5-5 parts of ethyl vanillin, 0.5-5 parts of lauric acid, 0.05-5 parts of linalool, 20-30 parts of an adsorbent, namely, silicon dioxide and 60-70 parts of a carrier. In comparison with the prior art, the flavoring agent is unique and unadulterated in toffee flavor, high and comfortable in aroma recognition degree, the food calling effect can be improved, the compatibility with feeds is good, the original bitterness of the feeds can be covered up, and the palatability of feeds is improved so as to promote ingestion of animals.

The invention provides a composite flame-retardant filler preparation method. The composite flame-retardant filler preparation method includes the steps of adding water in barium sulfate powder and magnesium chloride to prepare a pulp material, wherein, the barium sulfate powder has a size of 600-800 meshes, the mass ratio of the barium sulfate powder to the magnesium chloride is (4-6): 1, the prepared pulp material has solid content of 70-80%; adding dispersing agents during preparation, stirring at a constant temperature, grinding in wet, adding the dispersing agents and calcium hydroxide during stirring to prepare a composite pulp material has a size ranging from 5500 to 6500 meshes, drying, collecting, depolymerizing, scattering, and adding composite modifying agents for surficial modification, wherein the composite modifying agents at least comprise titanate coupling agents, ethyl laurate and sodium dodecyl sulfate. The invention further provides composite filler prepared by the composite flame-retardant filler preparation method, and the prepared composite filler is applicable to ABS (acrylonitrile butadiene styrene) shell filling and has a flame retarding function.

The invention discloses a low temperature diffusion-type time-temperature indicator card preparation method. The time-temperature indicator consists of ethyl laurate, epsilon-caprolactone and a coloring agent, and the volume ratio of the ethyl laurate to the epsilon-caprolactone is 11:1. The time-temperature indicator card adopts the mixture of the ethyl laurate and the epsilon-caprolactone as a diffusible substance, the coloring agent acid orange II is further added, the indicator is prepared by fully mixing, then the solidified state is formed by low temperature processing, and the solidified indicator is in contact with the diffusible medium for preparing the indicator card. The time-temperature indicator card can be applicable to the needs of different frozen foods.

The invention discloses a method for ultrasonic wave-pulsed electric field collaborative supercritical production of fruit alcohol. The method includes: firstly subjecting fruits to full-juice fermentation to obtain fruit dry wine, employing ultrasonic wave with frequency of 30-50kHz to conduct treatment for 20-50s, then employing a pulsed electric field with frequency of 10-30Hz and electric field intensity of 20-50KV / cm to perform treatment for 200-400 microseconds so as to obtain a fermentation treatment liquid; and then subjecting the fermentation treatment liquid to supercritical CO2 and ethane two-fluid extraction, separating the ethanol obtained by extraction, and then rapidly cooling the ethanol so as to obtain fruit alcohol with alcoholic strength of 90%-96% (V / V). The fruit alcohol produced by the method provided by the invention has typical fruit aroma, and keeps aromatic matters in fermented wine very well, wherein the content of ethyl acetate, ethyl propionate, ethyl lactate, ethyl laurate, phenethyl alcohol and other aromatic matters is enhanced by 50%-70% relative to traditional distillation ways. The fruit alcohol produced by the method provided by the invention has the advantages of high alcoholic strength, no evil or miscellaneous flavor, time saving and labor saving, and low cost.

Palmleaf raspberry fruit essence is disclosed. The essence includes, by mass, 8-10 parts of raspberry ketone, 0.1-0.5 part of vanillin, 1-2 parts of ethyl maltol, 2-3 parts of beta-ionone, 0.5-1 part of ethylionone, 4-5 parts of cinnamyl cinnamate, 8-10 parts of ethyl butyrate, 8-10 parts of piperonyl acetate, 0.1-0.5 part of butanedione, 0.1-0.5 part of ethyl acetoacetate, 0.1-0.5 part of ethyl acetate, 5-8 parts of ethyl laurate, 1-3 parts of ethyl isovalerate, 1-3 parts of ethyl methyl-3-pentenoate, 25-30 parts of strawberry aldehyde, 1-3 parts of isoamyl acetate, 5-10 parts of butyl acetate, 5-8 parts of amyl butyrate and 8-10 parts of amyl valerate. The essence has distinct palmleaf raspberry fruit fragrance, full fragrance, long duration time, obvious characteristic fragrance and good dissolvability, and can be widely applied in various products.

The invention belongs to the technical field of production of cigarette filter sticks, and particularly relates to a kumquat flavor essence for cigarette capsules and application of the cigarette capsules in cigarettes. The kumquat flavor essence is composed of a kumquat extract, isobutanol, vanillin, ethyl laurate, lemon oil, sweet orange oil and glyceryl caprylate / caprate. The essence can be used for preparing the kumquat flavor cigarette capsules, and the capsules can be added into filter sticks and are applicable to preparation of cigarettes with the cigarette capsules. By providing the special kumquat flavor essence for the cigarette capsules and adopting a perfect capsule production process, uniform cigarette capsule products having stable forming quality can be prepared; and after the capsules are placed in cigarette filter tips, the irritation of the cigarettes can be favorably weakened, the fragrance of the cigarettes is improved and enriched, and the fragrance richness, esthetic quality and smoking interestingness of the cigarettes are obviously improved. Thus, the kumquat flavor essence provided by the invention has high application value and favorable popularization and application meanings for the design, development, production and sales of the cigarettes with the capsules.

The invention belongs to the technical field of cigarette filter stick production and particularly relates to a cigarette blast bead red date-flavored essence and application of the same to cigarettes. The cigarette blast bead red date-flavored essence is composed of 3-hydroxy-2-butanone, fenugreek absolute oil, ethyl laurate, ethyl maltol, red date absolute oil and glyceryl caprylate-caprate. The cigarette blast bead red date-flavored essence can be applied to preparing a red date-flavored cigarette blast bead. The red date-flavored cigarette blast bead can be applied to a filter stick to prepare blast bead cigarettes. According to the cigarette blast bead red date-flavored essence and the application of the same to the cigarettes and through combination with a relatively complete blast bead production process, cigarette blast bead products stable and uniform in quality can be obtained. When arranged inside a cigarette filter tip, the cigarette blast bead can well weaken irritancy of the cigarettes, improve and enrich the flavor of the cigarettes, and significantly improve the flavor richness, the sensory quality and the smoking enjoyment of the cigarettes. Therefore, the cigarette blast bead red date-flavored essence and the application of the same to the cigarettes are high in application value and generalization and application significance to design, development, production and marketing of blast bead cigarettes.

The invention discloses a herba cistanche extract and an application thereof in preparation of cosmetics. The extract is prepared from the following components: echinacoside, acteoside, polyphenol, herba cistanche extract polypeptide, galactitol, betaine and soluble polysaccharide. The preparation method comprises the following steps: S1, washing, slicing and drying herba cistanche; S2, crushing dry herba cistanche slices, dissolving the herba cistanche powder in distilled water, and uniformly mixing the mixed solution; S3, pressurizing and filtering the herba cistanche mixed solution by a filter membrane to obtain a filtrate for later use; S4, eluting and purifying the filtrate by chromatography to obtain the herba cistanche extract, and mixing the herba cistanche extract with PEG 6000, ethyl laurate, glycerol, polyethylene castor oil, polydimethysiloxane and polysorbate-80 and cetyl stearyl glucoside to prepare cosmetic composition. The extraction process of the herba cistanche extract is simple, and the extracted finished product has high purity, is extracted from pure natural plants and has the advantages of being safe and free of side effect.

The invention relates to a water-in-oil type skin conditioning emulsion, which is prepared by mixing cyclo-methyl siloxane, ethanol, glycerol, polyethylene glycerol (4) isostearic acid ester (and) hexadecyl siloxane copolymer (and) ethyl laurate, cyclo-methyl siloxane (and) dimethyl siloxane ethylene glycol copolymer, ethylene glycol, N-acetylcysteine, sodium ethylene diamine tetracetate, benzyl alcohol, para hydroxy benzene methyl formate, citric acid, essence, zinc oxide and water according to a certain proportion. Each part of emulsion comprises the following components: 15-18 percent of cyclo-methyl siloxane, 3-5 percent of ethanol, 3-5 percent of glycerin, 2-3 percent of polyethylene glycerol (4) isostearic acid ester (and) hexadecyl siloxane copolymer (and) ethyl laurate, 2-3 percent of cyclo-methyl siloxane (and) dimethyl siloxane ethylene glycol copolymer, 2-2.5 percent of ethylene glycol, 1.5-2 percent of N-acetylcysteine, 0.5-0.7 percent of sodium ethylene diamine tetracetate, 0.3-0.4 percent of benzyl alcohol, 0.2-0.3 percent of para hydroxy benzene methyl formate, 0.2 percent of citric acid, 0.2 percent of essence, 0.1 percent of zinc oxide and the balance of de-ionized water. The emulsion has quite strong antioxidant capability, moisturizing capability and no greasy feeling, does not impede the excretion of the sweat, and has good air permeability.

The invention provides modified mineral fibers for producing a wire insulating layer material, and relates to the technical field of wire and cable production. The modified mineral fibers are prepared from, by weight, 110 parts of mineral fibers, 25 parts of polybutylene terephthalate, 1.5 parts of sodium dodecyl benzene sulfonate, 7 parts of lauramide propyl glycine betaine, 12 parts of anatase titanium dioxide, 3 parts of zinc sulfide, 6 parts of isopropyl lanolate, 11 parts of ethyl laurate, 4 parts of calcium hydrophosphate, 3.5 parts of isopropyl tris (dodecyl benzenesulfonyl) titanate, 0.8 part of dodecyl trimethylammonium chloride, 0.7 part of nickel bis(3,5-di-tert-butyl-4-hydroxy benzylmonoethylphosphonate) and 7 parts of auxiliaries. The surfaces of the modified mineral fibers have ends affinitive to organic matter and are high in compatibility with organic polymers, the interface state is improved, mechanical properties of the composite material can be improved, weather resistance, ageing resistance, heat resistance and the like of the composite material can be remarkably improved, and therefore the modified mineral fibers bring important economic benefits.

A foamable, liquid cleaning composition comprising: i. 0.5 to 5 wt. % C8-18 alkoxylated anoionic surfactant having 1 to 30 moles of alkylene oxide; ii. 5 to 20 wt. % nonionic surfactants; iii. 0.1 to 10 wt. % water miscible glycol ether solvent; iv. 0.1 to 10 wt % water immiscible fatty acid ester solvent selected from the group consisting of methyl laurate, ethyl laurate, ethyl octanoate or mixtures thereof; v. 0.1 to 10 wt % of sequestrant selected from the group consisting of citric, adipic, succinic, maleic, glutaric acids, mixtures thereof or salts thereof; and vi. water, wherein the composition has a viscosity of less than 100 mPa·s at 25° C. and 20 s−1, wherein ratio of the sum of alkoxylated surfactant (i) and nonionic surfactant (ii) to the solvent is in a weight ratio ranging from 0.93:1 to 20:1, and wherein the pH of the composition ranges from 2.0 to 4.5. A cleaning system comprising a spraying device and a foamable liquid cleaning composition, said spraying device forming a foam with a density of less than 0.4 g / ml when ejected from the spray device through the spray head. A method of removing oily fatty stains from fabric. Use of the composition for the removal of oily fatty stains from fabric, said use comprising applying the liquid cleaning composition in the form of a foam onto the surface of the fabric.

The invention discloses a method for synthesizing 1-(4-nitroimidazolyl)ethyl laurate on line under the catalysis of lipase. The method comprises the steps of with 4-nitro-imidazole and vinyl laurate which are in the mass ratio of 1:(1-8) as raw materials, 0.5-1.0g of lipase Lipozyme TLIM as a catalyst and a DMSO solvent as a reaction solvent, uniformly filling a reaction channel of a microfluidic channel reactor with the lipase Lipozyme TLIM, wherein the internal diameter of the reaction channel of the microfluidic channel reactor is 0.8-2.4mm, and the reaction channel is 0.5-1.0m long; and continuously introducing the raw materials and the reaction solvent to the reaction channel to carry out Markovnikov addition reaction, controlling the reaction temperature at 40-55 DEG C and the reaction time at 20-35 minutes, collecting a reaction solution on line, and carrying out conventional treatment on the reaction solution to obtain 1-(4-nitroimidazolyl)ethyl laurate. The method has the advantages of short reaction time, high selectivity and high yield.

The invention discloses a Carpomya vesuviana Costa adult attractant and an application thereof. The attractant comprises myristic acid, ethyl myristate, ethyl laurate, ethyl palmitate, ethyl linoleateand ethyl oleate. When the attractant is applied, different attractant formulas are provided for male adults and female adults of the Carpomya vesuviana Costa; a jujube fruit volatile matter is usedas an attractant to be matched with the yellow sticky trap for use; the attractant has the characteristics of good attraction effect, strong specificity and no adverse effect on the environment, the attraction activity of the six substances in the formula on the Carpomya vesuviana Costa is respectively tested by a four-armed olfactometer, and the result shows that the selection rate of female insects on ethyl palmitate, ethyl laurate and myristic acid are high, and are respectively 30%; and the selection rates of male insects on ethyl linoleate and ethyl oleate are high and are respectively 25% or above. Through continuous 8d monitoring in the field, the trapping effect of volatile myristic acid is strong, the maximum trapping amount is 23 / piece, and the average trapping amount is 18.2 / piece.

The invention provides a banana-flavored food additive, which is prepared from the following components in parts by weight: 0.5 to 1.5 parts of isoamyl acetate, 0.2 to 0.4 part of isoamyl butyrate, 2 to 3.5 parts of ethyl acetate, 0.2 to 0.5 part of ethyl laurate, 0.5 to 0.8 part of butanedione, 0.2 to 0.7 part of butyl butyrate, 0.3 to 1.2 parts of 2,3-acetyl isobutyryl, 0.05 to 1.05 parts of anisyl acetate, 0.5 to 2.5 parts of cinnamon oil, 1 to 3 parts of ethyl butyrate, 25 to 35 parts of tangerine oil, 0.5 to 2.5 parts of sweet orange oil and a proper amount of ethanol. The food additive is favorable for food processing operation, and requirements of different populations are met.

The invention discloses an ethyl laurate synthesis method taking a deep eutectic solvent BAC-DES based on benzyltrimethyl ammonium chloride as a catalyst. The catalyst BAC-DES is prepared by mixing and reacting benzyltrimethylammonium chloride and p-toluenesulfonic acid according to a molar ratio of 1:3. The ethyl laurate is prepared by carrying out an esterification reaction on lauric acid and excessive anhydrous ethanol at a certain temperature, and sequentially carrying out phase separation, atmospheric distillation, reduced pressure distillation and the like. The eutectic solvent BAC-DES is used as the catalyst for an esterification reaction, has a series of advantages of high catalytic activity, easiness in separation from a reaction system, stable reusability, mild reaction conditions and the like, and greatly reduces the production cost of ethyl laurate while meeting the requirements of a green synthesis process.

The invention belongs to the field of the adhesives and discloses a high-temperature-resistant wood floor nano adhesive and a preparation method thereof. The nano adhesive is prepared from nano titanium dioxide, nano aluminium oxide, urea resin, verdyl acetate, ethyl laurate, methyl anthranilate, n-valeraldehyde and a silane coupling agent KH560. The preparation method comprises the following steps: (1) evenly mixing the two nano compounds, namely nano titanium dioxide and nano aluminium oxide, thereby obtaining powder A; (2) adding the urea resin, verdyl acetate, ethyl laurate and methyl anthranilate while stirring mechanically; (3) heating the mixture of the step (2) and then adding valeraldehyde, the silane coupling agent KH560 and the powder A prepared in the step (1), and mixing and stirring evenly to obtain the high temperature-resistant wood floor nano adhesive.

The invention provides pesticide mother solution, a preparation method and an application thereof. The pesticide mother solution comprises the following components in percentage by weight: 0.1-40% of active ingredient A expressed in the formula Xa, 10-98.9% of solvent B of the mixture of one or more than two of glutaric acid diisopropyl ester, adipic acid diisopropyl ester, adipic acid-di-n-butylester, ethyl laurate, dodecanoic acid normal propyl ester, isopropyl myristate, tirbutyl citrate or acetyl tributyl citrate; 1-50% of another solvent ingredient C. The pesticide mother solution of the invention still can maintain stability at low temperature, and can be more convenient for being used in cold regions.

The invention belongs to the technical field of steel (carbon steel) corrosion and protection and particularly relates to an application of ester-group-containing biquaternary ammonium salt as a carbon steel oil-gas field corrosion inhibitor. The effective constituent of the carbon steel oil-gas field corrosion inhibitor is 1,3-bis[(2-ethyl laurate) dimethyl quaternary ammonio]-2-hydroxypropyl-dichloro. The carbon steel oil-gas field corrosion inhibitor can prevent carbon steel materials and products of the carbon steel materials from generating a corrosion electrochemical reaction (local corrosion and general corrosion) when the carbon steel materials and the products of the carbon steel materials make contact with a saturated carbon dioxide saline solution in a oil-gas field environment or under a corresponding acid condition. The carbon steel oil-gas field corrosion inhibitor is small in dosage, free from toxicity, environmentally friendly, high in efficiency, high in continuous acting capacity and capable of effectively restraining corrosion damage to the carbon steel and has significant application value and broad market prospect.