17 results about "Ethyl benzoate" patented technology

The invention discloses Leishan fish sauce sour essence as well as a preparation method and application thereof. The leishan fish sauce acid essence is prepared from ethyl acetate, absolute ethyl alcohol, ethyl isovalerate, ethyl hexanoate, isoamyl alcohol, furfuryl alcohol, ethyl lactate, ethyl caprylate, acetic acid, diethyl succinate, methyl salicylate, ethyl benzoate, ethyl laurate, hexanoic acid, phenethyl alcohol, 4-methyl guaiacol, ethyl myristate, ethyl palmitate, ethyl oleate, capsicum oleoresin, ethyl phenylacetate and ginger oil. And lactic acid, glycerol triacetate, ocimene, ethyl isovalerate, ethyl butyrate, anethole and phenylacetaldehyde. The Leishan fish sauce sour essence disclosed by the invention is soft and harmonious in overall fragrance, natural and vivid, still has stable flavor characteristics at high temperature, can make up the problem of flavor deficiency in sour soup products, realizes accurate reproduction and controllable release of composite fragrance, improves the standardization level of products, and effectively improves the preference degree of consumers.

The subject of the invention is N-substituted derivatives of l-(l-phenyl-3-aryl)-lH-pyrazol-4-yl)methanamine with the general formula 1, where ¥ represents CH or N, R1 represents hydrogen, R2 represents no substituent, R3 represents hydrogen, while R4 represents N-propylbenzamide, benzo[b]furan, dihydrobenzo [b] furan, methylenedioxybenzene, ethyl benzoate, or propyl benzoate, substituted accordingly, their method of production and application, and the method of obtaining and application of N-substituted derivatives of l-(l-phenyl-3-aryl)-IH-pyrazol-4-yl)methanamine with the general formula 1, where Y represents C, CH, or N, R1 represents hydrogen or a methyl group, R2 represents a methyl group or no substituent, R3 represents hydrogen or a methyl group, while R4 represents dimethylpyrazole, methylpyrazole, dimethylimidazo[l,2-a]pyrimidine, or isopropoxybenzene, substituted accordingly. The compounds that are the subject of the invention are obtained through reductive amination using borohydride derivatives as the reducing agent, advantageously sodium triacetoxyborohydride, in the amount of 1.4-2.0 eq, amine in the amount of 1.0-1.1 eq, advantageously in slight excess, base, advantageously triethylamine in the amount of 1.0-1.1 eq (in the case of using amine in the form of hydrochloride), and the starting aldehyde. The reaction is conducted in a nonpolar solvent environment, advantageously dichloroethane at a concentration of about 0.1 M. The crude product is purified by column chromatography on silica gel using a methanol in dichloromethane mixture as the eluent, in concentration ranges from 2% to 5%. In order to obtain a solid form and improve the physicochemical parameters, the free bases are converted into hydrochloride form, and then crystallized from a polar solvent, advantageously ethanol or propanol.

The present application relates to the field of non-woven fabric technology, and specifically discloses a biodegradable non-woven fabric and its preparation method. The non-woven fabric is mainly made of the following raw materials in parts by weight: 100 parts of polypropylene, 1-2 parts of biodegradable masterbatch, 6-8 parts of modified chitosan, 3-5 parts of maleic anhydride grafted polypropylene, and 1-2 parts of antioxidant; the modified chitosan is obtained by treating chitosan with sodium hydroxide, 1-chlorododecane, and 4-(2-chloroethane acylamino) ethyl benzoate. The biodegradable non-woven fabric has the advantages of high breaking strength and good degradability, expands the scope of application, can solve the environmental pollution problem caused by the difficulty of degradation of traditional polypropylene non-woven fabrics, and meets market demand.

The objective is to provide a fragrance composition that has high reproducibility of the fragrance of forsythia flowers and excellent palatability. [Solution] The forsythia flower fragrance composition comprises (A) methyl salicylate and / or ethyl salicylate, (B) methyl benzoate and / or ethyl benzoate, and (C) linalool and / or limonene, wherein the total content of component (A) and component (B) is 50 to 90% by mass, and the mass ratio (A / B) is 1 to 10.

The application discloses a catalyst for high-density polyethylene film production and a preparation method thereof, and belongs to the technical field of olefin polymerization catalysts. The catalyst takes active magnesium chloride as a carrier, loads titanium tetrachloride active components, and adopts a specific complex internal electron donor system. (1) Tetrahydrofuran and cyclohexanone are added as pre-coordination regulators during the preparation of magnesium chloride alcohol compound; (2) the alcohol compound is dispersed in titanium tetrachloride by means of atomization spraying for low-temperature titanium loading; (3) specific combined siloxane compounds and aromatic carboxylic acid esters are added in stages during the gradient temperature rising process, and ethyl benzoate is added in batches; (4) selective passivation washing is carried out by using a toluene solution containing ethyl acetate in the washing stage. Through the synergistic effect of the four steps, the generation of super-high-activity Ti 3+ centers is selectively inhibited, and the number of polymer "fish eye" defects is greatly reduced.

The invention discloses a kind of ethyl benzoate and its preparation method, belong to the field of fine chemical preparation. The preparation method of ethyl benzoate is, in the first step, acrolein and ethyl malonate are subjected to Kneuwengel condensation reaction to generate enester under triethylenediamine catalyst; In the second step, the diene ester and acrolein generated by the first step undergo Diels-Alder reaction to obtain cyclohexene carboxylate substituted with aldehyde group; In the third step, the cyclohexene carboxylate substituted with aldehyde group is subjected to decarbonylation and dehydrogenation reaction to generate ethyl benzoate under metal catalyst. The reaction conditions of the present invention are simple, the catalyst is simple and easy to obtain, and the cost is low. It is a method for synthesizing spices and flavors through a biomass route with great industrialization prospects.

The application discloses a kind of composite sweet compound has sweetening effect additive and its application method, belong to food additive technical field.The additive includes mass ratio 5:0.01:0.00625~24 of sucrose, propylene glycol and composite sweet compound;Wherein, composite sweet compound is selected from at least three kinds in ethyl benzoate, furanone, butyl position decanolactone, propyl position decanolactone, carvacrol, carvone, propyl position nonanolactone, benzyl alcohol, citronellol.The application is by compounding three kinds and more than aroma substance, utilizes multiple aroma synergistic effect taste perception, can realize effective sweetening effect under the premise of significantly reducing sucrose amount, improve the comfort of taste simultaneously.This method not only provides important reference for the sweetening effect of different aroma, has scientific research guiding value, also provides a kind of new strategy for food industry by aroma control, realizes sugar reduction gain, can respond to health needs while maintaining flavor and taste, with wide application prospect.

This invention discloses a strain of *Westernella greenis* and its application in flavor improvement in soy sauce, belonging to the field of microbial fermentation agent technology. The *Westernella greenis* F2 provided by this invention can significantly enhance the flavor of fermented seasonings, increase the content of volatile substances in fermented soy sauce, and increase the content of characteristic flavor compounds such as isoamyl alcohol, 1-octen-3-ol, 3-methylthiopropanol, guaiacol, furfural, and pyrazines. Simultaneously, it increases the levels of ethyl benzoate and ethyl acetate, which can mask undesirable flavors, demonstrating very broad application prospects.

The invention provides a ninhydrin rapid development method and a ninhydrin rapid development solution for potential fingerprints. The ninhydrin rapid development method of the potential fingerprint comprises the following steps: heating a ninhydrin development solution to be not lower than 100 DEG C; immersing a potential fingerprint sample into the ninhydrin appearing solution; taking out and volatilizing the displayed fingerprint sample, and photographing to fix a display result; the ninhydrin developing solution for the potential fingerprints is applied to the ninhydrin rapid developing method for the potential fingerprints and comprises a color developing agent and a solvent, the color developing agent is selected from ninhydrin; the solvent is selected from ethyl benzoate. According to the method, the time for potential fingerprint showing is shortened to only several seconds, the instant showing effect of object immersion and fingerprint showing is achieved, accordingly, two-step showing of first immersion and second heating in the prior art is simplified into one-step showing of immersion and heating, whether the fingerprint is left on the object or not can be directly judged without aftertreatment, the showing efficiency is remarkably improved, and the method is suitable for popularization and application. And the workload of identification personnel is reduced.

This invention provides characteristic compounds, quality control materials, reconstructing solutions, and applications of deer antler wine flavor, belonging to the fields of food flavoring and chemical engineering technology. Through experimental research, this invention has discovered six characteristic compounds in deer antler wine: hexanal, octanal, nonanal, myristal, ethyl benzoate, and ethyl octanoate. These six compounds are highly correlated with the flavor of deer antler wine, and the flavor can be reconstructed using these characteristic compounds, such as in the preparation of deer antler-flavored beverages. Furthermore, the flavor of deer antler wine can be altered by controlling the content of these characteristic compounds. Based on the content of these six compounds, this invention can determine the flavor of deer antler wine, enabling its grading and evaluation, reducing the influence of subjective factors in human evaluation, and facilitating industrialization and standardization.

The invention belongs to the field of photochromic materials, and particularly relates to a photochromic diarylideneester derivative and a synthesis method thereof. The photochromic diarylallyl ester derivative takes phenanthrene bridged dithienylethene as a skeleton, ethyl benzoate groups are bonded at two ends, and the photochromic diarylallyl ester derivative is synthesized by adopting a'one-pot 'cascade reaction: firstly, biphenyl dicarbonyl chloride is prepared from biphenyl dicarboxylic acid and oxalyl chloride, and is subjected to Friedel-Crafts acylation, McMurry coupling and Suzuki coupling, so that the total yield is increased by more than or equal to 30% compared with that of a traditional route; the obtained compound shows reversible colorless blue color-changing circulation under ultraviolet / visible light irradiation, and no attenuation is generated after the circulation is carried out for more than 5 times; in a THF / H2O system, the fluorescent probe shows a typical aggregation-induced emission effect, the fluorescence intensity is enhanced by about 20 times, and the fluorescent probe can be applied to the fields of optical storage, anti-counterfeiting coatings, biological detection and the like.

The invention relates to the technical field of all-solid-state batteries, in particular to a sulfide solid electrolyte powder refining method and application thereof. The method for refining the sulfide solid electrolyte powder comprises the following steps: adding the sulfide solid electrolyte powder, ball milling balls and a solvent into a ball milling tank for ball milling; wherein the solvent comprises one or more of methylbenzene, dimethylbenzene, normal hexane, normal heptane, normal octane, isobutyl isobutyrate, n-butyl ether, anisole and ethyl benzoate; the diameter of each ball milling ball is 0.1 to 3mm; the ball-to-material ratio is (10-50): 1; the mass ratio of the solvent to the sulfide solid electrolyte powder is (2-10): 1; the ball milling speed is 200 to 600 rpm, and the ball milling time is 1 to 20 hours. By selecting the proper solvent and regulating and controlling the ball milling process, the sulfide solid electrolyte powder has small particle size and high ionic conductivity while avoiding side reaction in the ball milling process.

The application belongs to the technical field of textile chemistry, and particularly relates to a graphene modified polyester fiber and a preparation method thereof. The polyester fiber has low moisture regain and poor moisture absorption, and is prone to static electricity during production and use. In view of the above problems, the application provides a graphene modified polyester fiber. In the obtained modified graphene material, graphene sheet layer structures are connected together through 3,5-bis(3-aminopropyl)benzoic acid ethyl ester and four-arm-polyethylene glycol-amino structure fragments as bridges, the agglomeration phenomenon between the graphene materials is improved, the uniform dispersibility of the modified graphene material on the surface of the polyester fiber is significantly improved, the four-arm-polyethylene glycol-amino is introduced into the modified graphene material as a rich polyether structure, the hydrophilic polyether structure can absorb or associate water molecules in the air, and a conductive water film is formed on the surface of the polyester fiber to eliminate static electricity.

The invention discloses a regenerated oil-based asphalt regenerant as well as a preparation method and application thereof, and belongs to the technical field of road engineering regenerated asphalt. The regenerant comprises the following components in parts by weight: regenerated oil, matrix asphalt, a composite plasticizer, a penetrant, an anti-aging agent and a flame retardant, the regenerated oil comprises waste mineral oil and waste edible oil; the composite plasticizer comprises a component A and a component B, wherein the component A comprises a hydrocarbon-terpene resin compound system, ethyl benzoate and hydrogenated soybean oil; the hydrocarbon-terpene resin compound system comprises cycloalkane, alkylated aromatic hydrocarbon and terpene resin; the component B comprises polyethylene glycol and amino silane; the penetrating agent is glyceryl monopalmitate; the anti-aging agent is prepared from tert-butyl hydroxy anisole, phenyl benzimidazolone and dicyclohexyl peroxide. The regenerant provided by the invention can endow regenerated asphalt with excellent high-temperature stability, anti-aging performance and permeation regeneration effect, and meanwhile, the flash point of the regenerant is remarkably improved, so that the construction safety is guaranteed.

This invention belongs to the technical field of polyester fiber materials, specifically relating to an anti-UV fiber material and its preparation method. Organic UV absorbers only have strong UV absorption capabilities in the near-UV region, resulting in unstable and unsatisfactory UV resistance. To address these issues, this invention provides an anti-UV fiber material with a surface-loaded UV absorber. The UV absorber is generated by a thermal condensation reaction between the hydroxyl groups of a benzotriazole UV absorber and the carboxyl groups of carboxyl-modified nano-TiO2 and polyether-modified ethyl benzoate. The polyester fiber obtained by this invention exhibits a wide wavelength range for UV absorption, covering the UV-A, UV-B, and UV-C bands, and demonstrates good UV resistance stability. Furthermore, the benzotriazole UV absorber, carboxyl-modified nano-TiO2, and polyether-modified ethyl benzoate form a cross-linked network on the polyester fiber surface, resulting in long-lasting UV resistance.

The application discloses a method for analyzing the mechanism of YZH in treating liver injury based on network pharmacology, wherein magnetic solid-phase extraction microspheres prepared by modifying magnetic Fe3O4 with oleic acid, adding 4-vinyl ethyl benzoate and 2-methyl propionic acid-3-heptenyl ester are used to sufficiently extract main components in YZH, component identification is performed in combination with LC-MS / MS and a traditional Chinese medicine metabolite database, components and disease targets are predicted, a protein-protein interaction network is constructed, and core targets are screened out. Further confirmation is performed through GO function and KEGG pathway enrichment analysis, molecular docking and immunoblotting experiments, and it is found that YZH plays a liver protection role through regulating multiple pathways such as oxidative stress response and inflammatory signaling pathway. The method integrates analysis of multiple components, multiple targets and multiple pathways, analyzes the action mechanism of YZH in treating liver injury, and provides a standardized technical scheme for mechanism research of traditional Chinese medicine compounds.

The invention discloses a method for analyzing a liver injury treatment mechanism of YZH based on network pharmacology, which comprises the following steps: modifying magnetic Fe3O4 by oleic acid, adding magnetic solid-phase extraction microspheres prepared from ethyl 4-vinylbenzoate and 2-methylpropanoic acid-3-heptenyl ester to fully extract main components in YZH, and performing component identification by combining LC-MS / MS and a traditional Chinese medicine metabolite database. Predicting components and disease targets, constructing a protein-protein interaction network, and screening out a core target. GO function and KEGG pathway enrichment analysis and molecular docking and immunoblotting experiments further prove that YZH plays a role in liver protection by regulating oxidative stress reaction, inflammation signal pathways and other pathways. According to the method, the action mechanism of YZH for treating liver injury is analyzed through multi-component-multi-target-multi-channel integration analysis, and a standardized technical scheme is provided for mechanism research of traditional Chinese medicine compounds.