48 results about "Ethyl linoleate" patented technology

The present invention is a method of preparing the linoleic acid ethyl ester with the composite solid superacid catalyst. The production method the of linoleic acid ethyl ester in the existing industrialized production is the esterification reaction between the linoleic acid and the anhydrous ethanol ester with the concentrated sulfuric acid as the catalyst. The method has the problems of the large discharge of the acidic wastewater, the serious corrosion of the production equipment and so on. Therefore, the industrialized production urgently needs an environment-friendly solid acid catalyst. The method of preparing the linoleic acid ethyl ester with the composite solid superacid catalyst of the present invention is that the linoleic acid and the anhydrous ethanol with the molar ratio of 1 to between 1 and 10 are added into the reactor in order; the mixed solution is added with the SO42- / TiO2-SiO2, the composite solid superacid catalyst, whose weight is 1 to 10 percent of the weight of the linoleic acid; the mixed solution is stirred and heated with the protection of the nitrogen; the reaction is done for 2 to 10 hours at the return temperature of 40 DEG C; the solution is delaminated statically after the reaction; the products on the upper layer are decompressed and distilled under the pressure of minus 98.8 to minus 99.3 kPa; the distilled ingredients are collected at the temperature between 162 and 172 DEG C; then the refined inoleic acid ethyl ester can be got. The method of the present invention is suitable for the preparation of the linoleic acid ethyl ester in the industry.

The invention discloses an anti-caries fluorinated foam. The foam is characterized by comprising a foaming agent, a humectant, an acidifier, water-soluble fluoride, a sweetening agent, essence, a propellant and pure water. The foam is characterized in that water-soluble fluorinated foam is placed in an aerosol container, an extruded product is in a white fine foam shape and is free of fluidity, and the PH value is 4.0-6.0. The water-soluble fluoride is sodium fluoride, stannous fluoride and sodium monofluorophosphate. The acidifier is strontium chloride, ethyl linoleate and sodium lauryl sulfate.

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 invention relates to application of ethyl linoleate to prevention and treatment of pine wilt diseases. A method of using the ethyl linoleate for preventing and treating the pine wilt diseases, provided by the method, comprises the step of placing the ethyl linoleate in pines containing propagation type pine wood nematodes. The method provided by the invention can be used for the governing of pines infected with pine wood nematodes in forest. The invention can solve the problems of mass propagation and fast diffusion of the pine wood nematodes in pine wood nematode epidemic situation generating places.

A method for preparing high-content conjugated linoleic acid (CLA) through Purification of vegetable oil includes alcoholysis, purification and isomerization of vegetable oil. Alcoholysis is for preparing corresponding methyl ester or ethyl ester with glyceride; purification of methyl ester or ethyl ester is for obtaining methyl linoleate or ethyl linoleate of content over 85% through silver-based silica gel column chromatography; high-content CLA is obtained after alkali-catalyzed conjugation of methyl linoleate or ethyl linoleate, and CLA products are prepared as needed. This invention changes the status quo of preparing high-content CLA with safflower oil alone, expands sources of CLA, and develops an efficient technology for separation and purification of linoleic acid. The CLA obtained is of high purity and meets applications in pharmaceutical, health care products and other industries.

This invention relates to a method of ion liquid through catalysis preparing linoleic acid ethyl ester at room temperature. The invention takes linoleic acid and absolute ethyl alcohol as raw material, use 1 - alkyl- 3 - methyl glyoxaline tetra- fluoborate ion liquid through catalysis to preapre linoleic acid ethyl ester. The invention mix the linoleic acid and absolute ethyl alcohol according to mol ratio of 1 : 2 to 10, then add ion liquid catalyst about 5 to 6% linoleic acid quality to the mixture, whip and heat under nitrogen shield, takes reaction 2 to 10 hours at 40 deg circumfluence temperature,then decant upper offspring, takes underpressure rectification at minus 98.6 to minus 99.2kpa, collect fraction of 158 to 171 deg, gain refined linoleic acid ethyl ester product.

The invention relates to a gamithromycin emulsion. Each 100g of the gamithromycin emulsion comprises the following components by weight of 0.01 to 5.0 g of gamithromycin, 0.1 to 16.0 g of lysimachia christinae hance oil, 0.1 to 5.0 g of ethyl linoleate, 8.0 to 30.0 g of sucrose fatty acid ester, 10.0 to 20.0 g of polyoxyethylene ether (60) hydrogenated castor oil, 5.0 to 10.0 g of 1, 2-propylene glycol and the balance of deionized water. Meanwhile, the invention further discloses a preparation method, the process operability is high, and production conversion is facilitated. The emulsion disclosed by the invention is in an oil-water mutual wrapping type, the prepared product can be infinitely diluted with water and can also be infinitely diluted with oil, after being diluted with water, the emulsion can meet the drinking water administration requirement and is convenient to use, and after being diluted with oil, the emulsion can be prepared into a slow-release emulsion, so that a long-acting antibacterial effect is achieved, and the administration frequency is reduced. The emulsion disclosed by the invention can be used for preventing and treating ileitis diseases caused by pig Lawsonia intracellularis infection, has an effect obviously better than that of the prior art, and has a wide market application prospect.

The invention discloses a solid acid catalyst and a preparation method thereof. The catalyst has a composition of V2O5-SO4<2-> / ZrO2-Al2O3, and comprises, by weight, 2-10% of V2O5, 8-20% of SO4<2->, 20-50% of ZrO2 and 35-70% Al2O3. The preparation method of the solid acid catalyst is as below: first preparing ZrO2-Al2O3 composite metal oxide, then successively loading SO4<2-> and V2O5 on the ZrO2-Al2O3 composite metal oxide to prepare the V2O5-SO4<2-> / ZrO2-Al2O3 solid acid catalyst. The invention discloses the application of the V2O5-SO4<2-> / ZrO2-Al2O3 solid acid catalyst to the synthesis of ethyl linoleate. The catalyst has high activity stability in the synthesis of ethyl linoleate.

The invention discloses a preparation method of novel red yeast rice powder with a blood fat reducing function, which belongs to the technical field of bioengineering and health care product preparation. The method disclosed by the invention comprises the following steps: inoculating a monascus purpureus Z505 seed solution into a fermentation medium for culturing, and filtering, freeze-drying andcrushing the obtained fermentation liquor to obtain the functional red yeast rice powder with the blood fat reducing function. The formula of the fermentation medium comprises 4 to 8% of cereals, 1 to3% of soybean meal, 0.2 to 1% of ammonium sulfate, 0.1 to 1% of monopotassium phosphate, 0.01 to 0.1% of magnesium sulfate, 0.01 to 0.1% of potassium chloride, 0.0001 to 0.001% of ferrous sulfate, 0.001 to 0.005% of manganese sulfate, 0.0001 to 0.001% of zinc sulfate and the balance of water, and the pH value of the fermentation medium is 5 to 6. The content of ethyl linoleate in the obtained functional red yeast rice powder is about 15 mg / g, and the functional red yeast rice powder can be used in food and health care products.

An esterification-ultrahigh pressure crystallization separation method for a distillate of vegetable oil takes the distillate of vegetable oil as a raw material, comprises the various unit processes of esterifying, crystalizing, separating, desolventizing, washing and drying, and is characterized in that: in the esterifying process, concentrated sulfuric acid is taken as a catalyst, and absolute ethyl alcohol and free fatty acid are subject to esterification reaction at the temperature of 80 DEG C for 1 hour; in the crystalizing process, urea and 95% ethyl alcohol are added into an esterifying solution, the mixture is stirred to be dissolved, injected into a soft packaging bag, pumped and sealed, and then put into an ultrahigh pressure container to be processed at the pressure of 100-600MPa for 0.5-1h, then the pressure is released, the bag is unpacked, and the operations of separating, desolventizing, washing and drying are conducted to obtain a product mainly containing unsaturated fatty acid ethyl ester, VE, squalene, phytosterol and neutral oil. According to the method, the recovery rate of VE is equal to or larger than 90%, the recovery rate of phytosterol is equal to or larger than 60%, the recovery rate of squalene is equal to or larger than 70%, the recovery rate of neutral oil is equal to or larger than 90%, and the recovery rate of ethyl linoleate is equal to or larger than 80%.

The technical scheme of the invention relates to a regeneration method for absorbed and saturated granular active carbon of processing base liquor, which comprises the steps of: combusting and ashing absorbed substances, which mainly comprises higher aliphatic acids as well as incendive substances, such as ethyl palmitate, ethyl oleate, ethyl linoleate and the like, of the absorbed and saturated granular active carbons of the processed base liquor at the high temperature 500-6000 DEG C; measuring the iodine absorption rate after the saturated granular active carbons are subjected to washing, activating by high temperature steam, drying and cooling; sieving and grading packaging the processed absorbed and saturated granular active carbons; and using coarse active carbons as granular active carbons and fine active carbons as powder active carbons after crushing. Therefore, the regeneration purpose is realized.

The invention discloses a method for preparing high-purity conjugated linoleate by using a simulated moving bed. A conjugated ethyl linoleate is selected as a raw material; the stationary phase is selected from C8 and C18 silica gel; and the mobile phase is ethanol / water, methanol / water and acetonitrile / water. The method comprises the following steps: preparation of a raw material liquid sample injection liquid: dissolving low-purity conjugated ethyl linoleate in methanol to prepare a raw material solution, the eluent being methanol / water; continuously feeding raw material liquid and eluent into a simulated moving bed chromatographic system, herein, the system is a four-zone simulated moving bed, each zone is formed by connecting two or more chromatographic columns in series, and the chromatographic columns are filled with C18 silica gel, and withdrawing a product from an extraction opening, and meanwhile impurities flow out from a raffinate opening. The method has the beneficial effect that the raw material with the conjugated ethyl linoleate content of 80% is purified into a high-purity product with the content of 97% or above.

The composition of phospholipid capsule as health-care contains (by weight portion) 40-50 portions of soya lecithin, 10-15 portions of ethyl linoleate, 37-48 portions of refined soybean oil and 2-3 portions of span 80. It is mainly used for regulating blood-lipid and raising immanity of human body.

The invention discloses a folium artemisiae argyi extractive and relates to treatment on herpes zoster. The extractive is prepared according to the following preparation steps: using ethyl acetate as a solvent to perform dip extraction on wild dry folium artemisiae argyi, performing solid-liquid separation, concentrating the obtained liquid, and drying to obtain the extractive. The effective compositions of the extractive comprise dihydroxy, trimethoxyflavone, aliphatic acids, linolenic acid, octadecadienoic acid, pentadecanoic acid, ethyl linoleate, ethyl oleate, triterpenoids and the like. The extractive has the efficacy of warming meridian and stopping bleeding, dissipating cold and relieving pain, resolving stasis and nodules, restoring yang and relieving desertion, and is applicable to treat herpes zoster virus.

This invention relates to a 10-component stabilized synthetic honey bee brood pheromone and methods of stabilizing said pheromone by adding one or more antioxidants, thereby enabling the production and sustained use of commercial products based on that pheromone. The 11-component stabilized pheromone composition formed by adding the antioxidant tertiary-butyl hydroquinone to a synthetic blend of ethyl linoleate, ethyl linolenate, ethyl oleate, ethyl palmitate, ethyl stearate, methyl linoleate, methyl linolenate, methyl oleate, methyl palmitate and methyl stearate can be used in generic or race-specific ratios to manipulate the behavior and improve the performance of worker honey bees, resulting in overall increased vigor of the hive.

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 discloses mild type makeup removing lotion and a preparation method thereof and belongs to the technical field of cosmetics. The mild type makeup removing lotion takes linseed oil and camellia seed oil as raw materials to form a water-in-oil stable makeup removing lotion base material structure, and has anti-acne, anti-inflammatory and sunscreen effects; meanwhile, emulsified oil hasthe property of easiness of being dissolved into water, so that dirt on faces can be washed and cleaned only if the emulsified oil is washed with clean water; conjugated ethyl linoleate is used as animprinted molecule for carrying out immobilization on aspergillus oryzae lipase; then the conjugated ethyl linoleate is added to be subjected to catalytic reaction with lecithin, so that the catalytic conversion efficiency is promoted and a phospholipid moisturizing and repairing activating agent is formed, and furthermore, stimulating behaviors of the makeup removing lotion on skin surfaces arereduced; ursolic acid and glycyrrhizic acid are introduced to protect keratin on the skin surfaces in a makeup removing process, so that the irritation on skin is the smallest; antibacterial protection on the makeup removing lotion also can be formed and the skin is prevented from being injured by spoiled lotion. By adopting the mild type makeup removing lotion, the problems of current makeup removing lotion that the irritation on the skin is relatively great and the makeup removing efficiency is low are solved.

The invention relates to a silymarin self-emulsifying microemulsion composition and a preparation process thereof. The invention can make the particle size of the silymarin reach the nanometer level, improve the solubility of the silymarin, and improve the absorption. A silymarin self-emulsifying microemulsion composition comprising silymarin, ethyl linoleate, hydrogenated castor oil and absolute ethanol. The surface tension of the microemulsion system of the present invention is smaller than that of simple external phase water, and each microemulsion system greatly improves the solubility of silymarin. It can be seen from the scanning electron microscope that the microemulsion particles are spherical or nearly spherical, and the particle size distribution shows that most of them are concentrated in the range of 10-50 nm, with an average particle size of 17.2 nm.

An esterification-ultrahigh pressure crystallization separation method for a distillate of vegetable oil takes the distillate of vegetable oil as a raw material, comprises the various unit processes of esterifying, crystalizing, separating, desolventizing, washing and drying, and is characterized in that: in the esterifying process, concentrated sulfuric acid is taken as a catalyst, and absolute ethyl alcohol and free fatty acid are subject to esterification reaction at the temperature of 80 DEG C for 1 hour; in the crystalizing process, urea and 95% ethyl alcohol are added into an esterifying solution, the mixture is stirred to be dissolved, injected into a soft packaging bag, pumped and sealed, and then put into an ultrahigh pressure container to be processed at the pressure of 100-600MPa for 0.5-1h, then the pressure is released, the bag is unpacked, and the operations of separating, desolventizing, washing and drying are conducted to obtain a product mainly containing unsaturated fatty acid ethyl ester, VE, squalene, phytosterol and neutral oil. According to the method, the recovery rate of VE is equal to or larger than 90%, the recovery rate of phytosterol is equal to or larger than 60%, the recovery rate of squalene is equal to or larger than 70%, the recovery rate of neutral oil is equal to or larger than 90%, and the recovery rate of ethyl linoleate is equal to or larger than 80%.

The invention provides a method for photocatalytic selective ester aminolysis of epoxy grease. The method comprises the following step: generating a target product under the conditions of imine and aphotocatalyst by taking epoxy vegetable oil as a raw material. Imine is added into a reaction system for further aminolysis of the raw material epoxidized vegetable oil under the conditions of no solvent and no acid-base addition, and a target product can be obtained under the photocatalysis condition. The reaction relates to preparation of epoxidized vegetable oil from natural vegetable oil, andthen other substances are synthesized from the epoxidized vegetable oil so that another novel way is explored for development and utilization of natural oil. The reaction can be suitable for a large amount of grease work, such as epoxidized soybean oil, epoxidized ethyl linoleate and other epoxidized vegetable oil, the product is single and the conversion efficiency is high.

The invention belongs to the technical field of preparation of ethyl linoleate, and discloses ethyl linoleate catalytically synthesized by using an ionic liquid microemulsion and a preparation methodthereof. The preparation process comprises the following steps: (1) adding a non-polar solvent into a conventional surfactant, carrying out uniform mixing, dropwise adding imidazole ionic liquid, andcarrying out sufficient mixing to obtain a single ionic liquid microemulsion; and (2) adding linoleic acid and ethanol into the single ionic liquid microemulsion, carrying out a heating reaction, andcarrying out rotary evaporation to obtain ethyl linoleate. According to the method, the single ionic liquid microemulsion with good high-temperature stability is used as a reaction medium, the contactarea of a catalyst and a reaction substrate is increased, and generated water is solubilized in an ionic liquid microemulsion core, so a reaction rate is increased; the used catalyst is high in activity, small in equipment corrosion and low in equipment requirement, the problems of high catalyst cost, serious equipment corrosion, low reaction yield, poor product quality, harsh reaction conditionsand the like in the prior art are solved; and the method can be popularized and applied to catalytic esterification reactions.

The invention discloses a method for converting fatty acid into fatty acid ethyl ester, belongs to the technical field of grease processing, and aims to solve the problem of low grease yield of an existing method for reducing fatty acid in rice bran. After main fatty acid in the rice bran oil is converted into fatty acid ethyl ester, the fragrance is weak, and the flavor of the rice bran oil can be improved. Ethyl linoleate has the health-care effects of regulating blood cholesterol, preventing and treating atherosclerosis, resisting variability and the like.

The invention belongs to the technical field of agricultural pest control, and in particular relates to the application of ethyl linoleate in the control of pine wood nematode disease. The scheme of the present invention is based on the prevention and control scheme of pine wood nematode disease with ethyl linoleate in the prior art, and the fluorite nanometer after the juice modification treatment of selected succulent plants is further added to ethyl linoleate. Powder, can be at 0.5‑5μl / m 3 Under the situation of the low-dose ethyl linoleate application rate of pine body, further improve the diapause rate of B. xylophilus, make a large amount of B. xylophilus stop breeding, and form diffusion type B. xylophilus (comprising the third instar larvae of diffusion type (L. III ) and diffuse fourth instar larvae (L IV )) to reduce the transmission of the vector insect Monochamus alternatus during the eclosion period from January to May of the next year, which can effectively control pine wood nematode disease.

The invention provides a method for preparing conjugated ethyl linoleate by using safflower seed oil as a raw material. The method comprises: carrying out an ethyl esterification reaction on safflowerseed oil used as a main raw material and having an linoleic acid content of up to 69-79%, absolute alcohol and potassium hydroxide, carrying out liquid separation, carrying out water washing, drying,conjugating through a solvent-free method, carrying out water washing, and distilling to prepare the conjugated ethyl linoleate. According to the invention, with the method, only 0.993 ton of safflower seed oil needs to be consumed for each ton of the finished product, so the use amount of the raw material is greatly reduced, and the utilization rate and the production efficiency are improved.

This invention relates to a method of ion liquid through catalysis preparing linoleic acid ethyl ester at room temperature. The invention takes linoleic acid and absolute ethyl alcohol as raw material, use 1 - alkyl- 3 - methyl glyoxaline tetra- fluoborate ion liquid through catalysis to preapre linoleic acid ethyl ester. The invention mix the linoleic acid and absolute ethyl alcohol according to mol ratio of 1 : 2 to 10, then add ion liquid catalyst 1-ethyl-3-methylimidazolium fluoborate or 1-octyl-3-methylimidazolium tetrafluoroborate about 5 to 60% linoleic acid quality to the mixture, whip and heat under nitrogen shield, takes reaction 2 to 10 hours at 40 DEG C circumfluence temperature,then decant upper offspring, takes underpressure rectification at minus 98.6 to minus 99.2kpa, collect fraction of 158 to 171 DEG C, gain refined linoleic acid ethyl ester product. The method of the invention is used for sythesizing ethyl linoleate.

The invention discloses lipids and lipids compound used as medicines for treating pain and an application method of the lipids and the lipids compound. The lipids and lipids compound comprise the following lipids compositions including eicosapentaenoic acid ethyl ester (EE-EPA), docosapentaenoic acid ethyl ester (EE-DPA), docosahexaenoic acid ethyl ester (EE-DHA), ethyl linoleate (EE-LA), arachidonic acid ethyl ester (EE-AA), 12-hydroxy eicosanoic acid ethyl ester (EE-12-HETE), linoleic acid (LA), docosahexaenoic acid (DHA), arachidonic acid (AA), eicosapentaenoic acid (DPA) and 12-hydroxy eicosanoic acid (12-HETE), wherein the DPA is all-cis type-7,10,13,16,19-docosapentaenoic acid (DPA) and the like as well as combined application of a variety of lipids; medicines are administered in anoptimal dosage amount in intrathecal, epidural or intranasal ways while combined application of the medicines is allowed, and the medicines can be allowed to repeatedly and continuously administered through the ways, and the medicines directly act upon a central nervous system, so that potential side effects of the medicines and side effects of opiates medicines are reduced as much as possible when the pain is suppressed or prevented by adopting the medicines at the same time.

The invention discloses a carpomya vesuviana costa adult trapping method. According to the invention, a yellow sticky board with wave band of 560nm-600nm is adopted, the yellow sticky board faces thesunny side and is arranged with a distance of 1.5m-1.7m from the ground, an attractant is uniformly smeared to the yellow sticky board, and the attractant contains 50-60 parts of myristic acid, 40-60parts of ethyl myristate, 45-55 parts of ethyl laurate, 35-45 parts of ethyl palmitate, 30-40 parts of ethyl linoleate, 12-20 parts of ethyl oleate. In application, different attractant formulae are provided aiming at carpomya vesuviana costa male adults and female adults, have an obvious unique attractive effect for carpomya vesuviana costa adult, and have wide applicability in the field of pestcontrol.

The invention provides a radix paeoniae rubrathe active component, mainly containing 40%-52% of a compound A ethyl palmitate and 30%-48% of a compound B ethyl linoleate. The medicinal material radix paeoniae rubrathe is crushed, added with ethyl acetate and ethanol and subjected to heating extraction to obtain an extracting solution; the extracting solution is concentrated into an extract; the extract is mixed with silica gel; the mixture is separated by a normal phase silica gel column with petroleum ether and ethyl acetate as mobile phases, so as to obtain an eluent; and the eluent is subjected to concentration and drying to obtain the active component. The extraction separation process provided by the invention is simple and can quickly and accurately obtain the active component. Pharmacological experiments confirm that the active component has hepatoprotective effect and can be used in preparation of medicaments for the treatment of non-alcohol liver injury.

The invention relates to a method for simple and rapid determination of six fatty acid ethyl esters in human whole blood, belonging to the technical fields of drug detection and forensic identification, wherein the six fatty acid ethyl esters include ethyl myristate, ethyl palmitate, ethyl stearate, ethyl oleate, ethyl linoleate and ethyl arachidonate. The method is low in the usage amount of samples, and as few as 200 [mu]L of samples are examined. The process of pretreatment is simple and fast. A HP-5MS capillary gas chromatographic column and a mass spectrometric detector are employed for determination of the contents of the six fatty acid ethyl esters in human whole blood. The method has the advantages of high sensitivity, good specificity, a wide linear range, simple and fast operation and low usage amount of extraction solvents, and is capable of satisfying high requirements of urgent forensic identification tasks on detection time and easy to operate and promote.