13 results about "Phenethyl alcohol" patented technology

The present application provides compositions and methods for treatment of ocular inflammatory conditions, dry eye diseases, and abnormal corneal neovascularization, using etiprednol. In one example, a composition is provided comprising a semi-fluorinated alkane compound such as, e.g., perfluorohexyloctane; and an additive selected from paraffin, propylene glycol diacetate (PGD), a hydroxyalkyl ester of an aliphatic fatty acid, a hydroxyacid alkyl ester, an alkyl ester of a fatty acid, phenethyl alcohol, ethanol, isopropanol, glycerol, propylene glycol, polyethylene glycol, n-butanol, or combinations thereof. Eye drops comprising the compositions are also provided. Methods of using the compositions are also provided and include methods for reducing one or more symptoms of ocular inflammatory conditions, dry eye diseases, or abnormal corneal neovascularization.

This invention provides a method for purifying β-phenylethanol. The feed stream 1 is the bottom liquid from the styrene separation reaction of α-phenylethanol in the ethylene-phenyl co-oxidation process for producing propylene oxide. The method includes: receiving a solution stream 2 of thiourea compounds at the upper part of an extraction tower; receiving an extractant stream 3 in the middle part of the extraction tower; receiving the feed stream 1 at the lower part of the extraction tower; obtaining an oil phase stream 4 after impurity removal and extraction in the extraction tower; collecting waste liquid at the bottom of the extraction tower; passing the oil phase stream 4 into a crystallizer for crystallization and purification to obtain a product stream 5; the solution stream 2 of thiourea compounds is a thiourea compound, which can effectively remove aldehydes and ketones. This invention can obtain a high-purity β-phenylethanol product with acceptable aroma.

A boron-free liquid surfactant-containing agent for cleaning and / or caring for textiles, containing phenylethanol, ethanol and salt, is stable in storage and germ-resistant even without the addition of conventional preservatives.

This invention relates to a phenylpyruvate decarboxylase mutant for the synthesis of phenylethanol and its applications, belonging to the fields of enzyme engineering and genetic engineering. To address the technical problems of low catalytic efficiency, poor substrate affinity, and insufficient stability of existing phenylpyruvate decarboxylases, which lead to low biosynthetic efficiency and limited yield of phenylethanol, making it difficult to meet the needs of industrial production, this invention provides a phenylpyruvate decarboxylase mutant for the synthesis of phenylethanol. This mutant offers a new and highly efficient synthetic element for the biosynthesis of phenylethanol, with broad application prospects and market potential in the field of higher alcohol synthesis.

The present application provides compositions and methods for treatment of ocular inflammatory conditions, dry eye diseases, and abnormal corneal neovascularization, using etiprednol. In one example, a composition is provided comprising a semi-fluorinated alkane compound such as, e.g., perfluorohexyloctane; and an additive selected from paraffin, propylene glycol diacetate (PGD), a hydroxyalkyl ester of an aliphatic fatty acid, a hydroxyacid alkyl ester, an alkyl ester of a fatty acid, phenethyl alcohol, ethanol, isopropanol, glycerol, propylene glycol, polyethylene glycol, n-butanol, or combinations thereof. Eye drops comprising the compositions are also provided. Methods of using the compositions are also provided and include methods for reducing one or more symptoms of ocular inflammatory conditions, dry eye diseases, or abnormal corneal neovascularization.

This application relates to a method for deodorizing tilapia using yeast fermentation and its application, belonging to the field of aquatic product processing and flavor control technology. This application aims to solve the technical problems of complex deodorization processes, unstable flavor improvement, and the tendency to produce off-odors in existing tilapia technologies. The tilapia deodorization method using yeast fermentation of this application includes the following steps: S1, adding highly active dry yeast to a sucrose solution to prepare a yeast culture; S2, heating the yeast culture and adding it to tilapia meat, adjusting the pH of the system, fermenting, and filtering after fermentation to obtain deodorized tilapia meat. The method provided in this application utilizes the metabolic activity of yeast to reduce the content of fishy or irritating volatile substances such as 2,3-octanedione, 2,4-decadienal, and 2-nonenal in tilapia, and increases the content of sweet-smelling components such as ethanol, phenethyl alcohol, 2-acetylpyrrole, and esters, thereby achieving deodorization and flavor enhancement.

An electrochromic composition and a method for preparing the anodic electrochromic material thereof. The anodic electrochromic material used in the electrochromic composition is bis(dimethyldihydrophenazinyl)amine. The steps are as follows: preparing a prepolymer solution; adding a cathodic electrochromic material; adding an anodic electrochromic material, and stirring until homogeneous. The method for preparing the anodic color-changing material involves generating a moistened bis(5,10-dihydrophenazin-2-yl)amine from N⁴-(3,4-diaminophenyl)-1,2,4-phenyltriamine and catechol. The moistened bis(5,10-dihydrophenazin-2-yl)amine is then added to acetonitrile, sodium dithionite, sodium carbonate, methyl iodide, and methyltributylammonium chloride to obtain crude N,N-bis(5,10-dimethyl-5,10-dihydrophenazin-2-yl)amine. The crude N,N-bis(5,10-dimethyl-5,10-dihydrophenazin-2-yl)amine is then added to toluene and ethanol to prepare bis(dimethyldihydrophenazinyl)amine. The advantages of this invention are: it saves on the use of anodic electrochromic materials, reduces costs, and better meets color requirements.

The application discloses a kind of solid adsorbent and its preparation method and application.The application is dissolved in anhydrous ethanol with organic amine, 10-25 ℃ is stirred and dissolved, and forms homogeneous organic amine solution;Metal ion modified porous material is added to the organic amine solution, and is fully stirred and immersed at 10-25 ℃, and the stirring time is 5-10 h, and the solid adsorbent is obtained after filtration and drying.The solid adsorbent of the application can effectively remove organic matter in wastewater, especially the adsorption efficiency of oxygen-containing organic matter such as phenol and phenethyl alcohol is higher.The application realizes the continuous operation of wastewater treatment, so that the wastewater treatment efficiency is higher;Adsorbent can be regenerated by solvent desorption, and soaking solvent can be reused by distillation method, which avoids resource waste.

The present application relates to the technical field of yellow rice wine brewing and flavor control, and discloses a brewing method for realizing yellow rice wine flavor enhancement and odor control based on compound wheat starter.The method realizes the brewing method of "flavor enhancement and odor control" by using single or compound of block starter, inoculated raw wheat starter and explosive wheat starter under the condition of constant total starter amount.The results show that under the condition of the same total starter amount, the compound of inoculated raw wheat starter and explosive wheat starter at a ratio of 1:1 can significantly increase key aroma substances such as ethyl acetate, ethyl octanoate, ethyl decanoate and phenethyl alcohol;the compound of block starter, inoculated raw wheat starter and explosive wheat starter at a ratio of 1:1:1 can inhibit characteristic substances such as 2-methyltetrahydrothiophene and 4-vinylguaiacol.The method has clear process window and good repeatability, and is suitable for flavor optimization and targeted development of yellow rice wine products.

This invention discloses a method for the directional preparation of high-value chlorine-containing chemicals from polyvinyl chloride (PVC) and its applications, belonging to the field of solid waste recycling technology. The method includes the following steps: constructing a reaction system using PVC, aromatic alcohols, and a solvent; placing the reaction system at a temperature of 100–300 °C for ≥0.2 h to obtain chlorine-containing aromatic compounds; the aromatic alcohols include benzyl alcohol, 2-methylbenzyl alcohol, 3-methylbenzyl alcohol, 4-methylbenzyl alcohol, 4-tert-butylbenzyl alcohol, phenethyl alcohol, 4-bromobenzyl alcohol, p-chlorobenzyl alcohol, 4-hydroxymethylbenzonitrile, or 4-hydroxymethylbiphenyl, etc. This invention is economical and green, achieving the upgrade and conversion of PVC into chlorine-containing aromatic compounds in a single step without a catalyst, which is environmentally friendly and effectively utilizes chlorine resources.

The application relates to the field of essence and flavor technology, and particularly discloses a marine mint toothpaste essence and a preparation method thereof. The marine mint toothpaste essence is composed of the following components in parts by weight: 0.25-0.35 parts of watermelon aldehyde, 0.8-1.2 parts of phenethyl alcohol, 9.5-10.5 parts of mint oil, 4.5-5.5 parts of spearmint oil, 42-48 parts of menthol, 0.35-0.45 parts of citral, 4.5-5.5 parts of eucalyptus oil, 4.5-5.5 parts of anise oil, 0.45-0.55 parts of clove oil, 15.2-16.4 parts of propylene glycol, 0.9-1.1 parts of WS-3 menthylamide, 0.9-1.1 parts of WS-23 menthylamide and 9-11 parts of purple pepper-like mint essential oil. The preparation method is as follows: the raw materials are uniformly stirred and mixed, and then subjected to high-pressure homogenization to obtain the marine mint toothpaste essence. The marine mint toothpaste essence has excellent combination of marine and mint elements, is not prone to causing stimulation to sensitive groups of people, and has excellent and stable overall application effect.