65 results about "GLYCERYL PALMITATE" patented technology

The invention relates to a method for preparing a composition containing 2-palmitin. The method comprises the steps of providing a glyceride containing a palmitate residue; mixing the glyceride containing the palmitate residue with palmitic acid, palmitate or palmitic acid non-glyceride, and performing ester exchange to obtain grease A; performing enzymatic directional ester exchange on the grease A and unsaturated fatty acid or non-glyceride of the unsaturated fatty acid to obtain mixed oil B; refining the mixed oil B to obtain the composition containing 2-palmitin. The preparation process is simple. Compared with the existing method, the method disclosed by the invention has the advantages that the content of palmitic acid at the second site in the product prepared by using the method is higher, and fewer byproducts are produced after preparation, so that the method is favorable for environment friendliness.

The invention relates to a method for preparing 1, 3-dioleoyl 2-palmitoyl triglyceride by taking palm oil as a raw material. The preparation method comprises the following steps: (1), palm oil is taken as the basic raw material and is hydrolyzed under catalysis of a catalyst so as to prepare an oleic acid and palmitic acid mixture; (2), the oleic acid and palmitic acid mixture is separated; (3), separated palmitic acid is taken as a raw material to synthesize tripalmitin under the action of a catalyst; and (4), lipase catalyzed oleic acid and tripalmitin react to produce 1, 3-dioleoyl-2-palmitoyl triglyceride. The method has the advantages of stable raw material source, low cost, stable and excellent product quality and the like.

The invention relates to a method of producing high-gloss heat-resistance modification polypropylene resin, which comprises: polypropylene resin group material is mixed with additive uniformly before granulation is produced by melting and mixing. The polypropylene resin group material is isotactic and homopolymerized polypropylene with fused mass flowing speed of 3-26g/10min and 98.5-99.5 percent of isotactic index. The additive comprises nucleating agent 2, 2-methylene-di (4, 6-di-tert-butylphenoxyl) sodium phosphate and 3MgO2.4SiO2.H2O; lubricant is monopalmitin; antioxidant is four (3, (3, 5-di-tert-buty-4-hydroxyphenyl)) propionate pentaerythritol ester, phosphorous acid three (2, 4-tert-butylphenyl) ester and thiodipropionate bisoctadecanol ester. The modified polypropylene resin produced by the invention not only has good heat resistance, but also has excellent luster of products, which can reach above 98 GU20 degrees.

The invention relates to solid sate camellia seed oil rich in polyphenols and a preparation method thereof. The solid state camellia seed oil rich in polyphenols is a milky-white block solid, with oilcontent greater than 90%, hardness of 160-350 g, peroxide value not higher than 3.50 mmol/kg and DPPH free radical scavenging rate not less than 92%. The solid state camellia seed oil is prepared byusing the tea polyphenol palmitate and the monopalmitin as particle emulsifiers, the pectin as a stabilizing agent and a gelling agent and the camellia seed oil as an oil phase. The preparation methodis simple and convenient in process, easy to implement and capable of widening application fields of the tea polyphenol palmitate and the pectin and improving the safety and nutritional value of solid state oils and fats. The solid state camellia seed oil can be directly added in the production of cakes, ice cream and other products, and can bring a unique flavor and health care effects while reducing trans fatty acid contents in the above-mentioned products, thereby improving product quality. The solid state camellia seed oil is capable of maintaining a good solid state at room temperature,convenient for storage and transportation and being directly used after stirring and crushing.

The invention discloses a method for fractionating mango kernel fat by virtue of a solvent. The method comprises the steps: mixing a fractionation solvent and mango kernel fat to form mixed oil, heating the mixed oil to 35 to 60 DEG C at the stirring rate of 50 to 80 r/min so as to break all crystals in the system, and then performing the primary fractionation, the second fractionation and the tertiary fractionation to respectively obtain the mango kernel fat extraction component rich in 1-palmitic acid-2-oleic acid-3- stearin, 2-oleic acid-1,3-distearin and 1-palmitic acid-2-oleic acid-3-stearin and 2-oleic acid-1,3-distearin. The mango kernel fat extraction component can be mixed with the oil rich in 2-oleic acid-1,3-diapalmitin to prepare cocoa butter equiralent and also to be used as a cocoa butter improver.

The invention provides an efficient preparation method of a modified starch-lipid binary complex, which comprises the following steps: chemically modifying conventional starch through octenyl succinic anhydride to enable the conventional starch to have excellent emulsifying property; taking starch octenyl succinate and lipids (palmitic acid, monopalmitin and dipalmitin) as raw materials, controlling the mass ratio of the starch octenyl succinate to the lipids to be (10-200): 1, preparing a starch suspension with the concentration of 7-20%, and preparing the starch-lipid binary compound efficiently through a water phase system. The preparation method provided by the invention can effectively promote the compounding of starch and diglyceride in the food processing process. Compared with a traditional process, the starch-lipid compound with specific physicochemical properties and nutritional functions prepared based on the preparation method disclosed by the invention is higher in efficiency and better in quality, and is more beneficial to improvement of food quality and regulation and improvement of nutrition and health of a human body.

The invention provides 1,2-dipalmitoyl-SN-glycerol-3-phosphoethanolamine and a preparation method thereof. The preparation method comprises the following steps: S1, performing a nucleophilic substitution reaction on glyceryldipalmitate and POCl3 under the action of tetrahydrofuran and alkali, and purifying a reaction product after completion of the reaction to obtain an intermediate 1, wherein theintermediate 1 is (R)-3-((dichlorophosphoryl)oxy)propane-1,2-dipalmitic acid; S2, performing a nucleophilic substitution reaction on the intermediate 1 and N-Fmoc-ethanolamine under the action of tetrahydrofuran and alkali, and purifying a reaction product after completion of the reaction to obtain an intermediate 2, wherein the intermediate 2 is (R)-3-(((2-( fluorenylmethoxy carbonylamino)ethoxy)(hydroxy)phosphoryl)oxy)propane-1,2-dipalmitate; and S3, performing a nucleophilic substitution reaction on the intermediate 2 under the action of a solvent and alkali to obtain the 1,2-dipalmitoyl-SN-glycerol-3-phosphoethanolamine. According to the preparation method provided by the embodiment of the invention, a final product is relatively high in purity, and byproducts are few.

The invention relates to a high-gloss and heat-resistant polypropylene resin compound, which comprises: polypropylene resin group material, nucleating agent, lubricant, antioxidant A and antioxidant B. The polypropylene resin group material is isotactic and homopolymerized polypropylene with fused mass flowing speed of 3-26g/10min and 98.0-99.0 percent of isotactic index. The nucleating agent is selected from one of diphenyl methane group sorbitol, two (p-methyl diphenyl methane group) sorbitol or three (3, 4-dimethyl diphenyl methylene) sorbitol; the lubricant is monopalmitin; the antioxidant A is four (3, (3, 5-di-tert-buty-4-hydroxyphenyl)) propionate pentaerythritol ester and the antioxidant B is phosphorous acid three (2, 4-tert-butylphenyl) ester. The polypropylene resin compound not only has good heat resistance, but also has excellent luster of products, which can reach above 98 GU20 degrees.

The invention provides a method for preparing hexadecanoic acid direactive glyceride, which comprises the following steps of: taking a certain amount of TiCl14 solution; fully stirring and hydrolyzing the TiCl14 solution by 12 percent dilute ammonia water until the solution becomes alkalescent; finishing deposition; standing the solution for 24h, and then filtering the solution; washing deposits by de-ionized water until no chloride ions exist; drying the washed deposits in a baking oven; grinding the dried TiO2 into fine powder; soaking the fine powder in concentrated sulfuric acid and filtering the solution; drying the soaked and filtered fine powder in the baking oven by heating; extracting the dried fine powder and activating the fine powder in a muffle furnace at a certain temperature to obtain solid super acid; undergoing an esterification reaction at a certain temperature by using the hexadecanoic acid and glycerin as raw materials and the solid super acid as a catalyst to obtain mixed ester of the hexadecanoic acid glyceride; thermally filtering the mixed ester after the reaction ends to remove the catalyst; and using ethyl alcohol as a solvent for extracting for two timesso as to obtain the hexadecanoic acid direactive glyceride. The hexadecanoic acid direactive glyceride prepared by the method has high content and strong emulsifying capacity.

The invention relates to a method of producing high-gloss and heat-resistant modified polypropylene resin, which comprises: polypropylene resin group material is mixed with additive uniformly before granulation is produced by melting and mixing. The polypropylene resin group material is isotactic and homopolymerized polypropylene with fused mass flowing speed of 3-26g/10min and 98.5-99.5 percent of isotactic index. The additive comprises nucleating agent, lubricant, antioxidant A and antioxidant B. The nucleating agent is two (4- tertiary butyl- phenoxyl) phosphate and 2, 2-methylene-di (4, 6-di-tert-butylphenoxyl) sodium phosphate or 2, 2-methylene-double (4, 6-di-tert-butylphenoxyl) phosphate amine salt; the lubricant is monopalmitin; the antioxidant A is four (3, (3, 5-di-tert-buty-4-hydroxyphenyl)) propionate pentaerythritol ester and the antioxidant B is phosphorous acid three (2, 4-tert-butylphenyl) ester. The modified polypropylene resin produced by the invention not only has good heat resistance, but also has excellent luster of products.

The invention discloses a grease composition containing 1-oleic acid-2-palmitic acid-3-linoleic acid glyceride (OPL) and 1,3-dioleic acid-2-palmitic acid glyceride (OPO) and a preparation method thereof. In the grease composition, relative to a total weight of the grease composition, the OPL accounts for 20 wt% or more, and a total quantity of the OPL and OPO accounts for 40 wt% or more. The preparation method for the grease composition comprises the following steps: enabling palm stearin of which an iodine value (IV) is 8-12 to perform Sn-1,3 directional ester exchange with a fat mixture containing oleic acid or non-glyceride thereof and linoleic acid or non-glyceride thereof. The grease composition is more in comply with major components of Chinese people breast milk, and can be extensively applied to infant formula milk as an additive.

The invention provides a novel potassium citrate sustained release tablet and a preparation method thereof, the preparation method comprises the steps of crushing, weighing raw materials, granulating, mixing and tabletting. The potassium citrate sustained release tablet comprises the following components: potassium citrate, a lipid material (monoglyceride stearate, glycerol distearates, glyceryl behenate, glyceryl palmitate-stearate, glycerol trilaurate, neodecanoic acid glyceride, stearic acid, palmitic acid, beeswax), lactose and microcrystalline cellulose. The potassium citrate sustained release tablet is prepared by the components by weight percentage: 1-50% of potassium citrate, 10-50% of lipid material, 10-70% of filler, 0-60% of wetting agent, 0.1-5% of adhesive and 0.1-2% of antitackiness agent. The potassium citrate sustained release tablet has the advantages of the quality is good, medicine release is alleviated, and biology utilization degree is increased.

The invention discloses a bupropion hydrochloride sustained-release capsule and a preparation method thereof. The bupropion hydrochloride sustained-release capsule consists of the following components in percentage by weight: 62.50% of bupropion hydrochloride, 6.25% of tartaric acid, 9.26% of rotula, 4.17% of povidone K30, 6.94% of glyceryl palmitostearate, 0.46% of acrylic resin RS100, 9.26% of acrylic resin NE30D, 0.93% of talcum powder and 0.23% of yellow ferric oxide. The bupropion hydrochloride sustained-release capsule is uniform and stable in releasing, after a patient orally takes the bupropion hydrochloride sustained-release capsule, blood concentration is changed stably, after everyday medicine taking frequency is reduced, occurrence rate of adverse reaction is reduced obviously, and compliance of a patient is improved.

The invention discloses a method for synthesizing monopalmitoyl glyceride. The method comprises the following steps: 1) adding palm oil and glycerol into a first reactor, fully and uniformly stirring,and preheating to the temperature of 100-120 DEG C to obtain a first mixture; 2) adding a catalyst and a phase transfer agent, heating to the temperature of 200-220 DEG C, and stirring and reacting to obtain a second mixture; 3) adjusting the pH value of the second mixture, cooling, and centrifuging and layering to obtain an upper-layer monopalmitoyl glyceride crude product; and 4) distilling themonopalmitoyl glyceride crude product to obtain the monopalmitoyl glyceride. According to the method for synthesizing the monopalmitoyl glyceride, cerium phosphate and antimony trioxide cooperativelyserve as the catalyst, tetrabutylammonium bromide and cyclodextrin are used as the phase transfer agent, the reaction conversion rate of the prepared monopalmitoyl glyceride is remarkably improved, the product purity is high, the product purity reaches 94.2% or above, the conversion rate reaches 64.2% or above, and the method has a good industrial application prospect.

The present invention discloses a grease composition comprising 1-oleoyl-2-palmitoyl-3-linoleoyl-rac-glycerol (OPL) and 1,3-dioleoyl-2-palmitoyl glycerol (OPO) and a preparation method of the grease composition. The amount of OPL is 25wt% or more of that of the grease composition, and the total amount of OPL and OPO accounts for 40wt% or more of that of the grease composition. The preparation method of the grease composition comprises the following steps: carrying out alcoholysis on triglyceride containing palmitic acid to obtain grease A containing 2-monoglyceride palmitate; and carrying outsn-1,3 directional transesterification on the grease A and a fat mixture B containing oleic acid or non-glyceride of oleic acid and linoleic acid or non-glyceride of linoleic acid. The grease composition disclosed by the invention better conforms to the main composition of breast milk fat of Chinese people, and can be widely applied to infant formula milk powder as an additive.

The invention provides a method for preparing a compound with diacylglyceride, via enzyme catalysis. The inventive compound comprises aliphatic acid glyceride as main component, wherein the diacylglyceride comprises 20-50% diacylglyceride, 20-40% oleic acid acyl-linolic acid acyl glycerin, 15-40% 2-oleic acid acyl glycerin, 3-10% linolenic acid acyl-linolic acid acyl glycerin, and 0-3% 2-glyceryl palmitate. And the content of diacylglyceride of inventive product is higher than 94%, with high unsaturated degree of fatty acid, lower than 3% of 2-santuraed acyl glycerin, and lower than 5% 3-acyl glycerin, while the compound is clear and transparent at normal temperature or lower temperature. And the invention uses 1-acyl glycerin as material with low cost, wide resource and low producing lost.

The invention discloses a method for simultaneously detecting three monoglyceride emulsifiers in a dairy product based on gas chromatography-mass spectrometry. The method comprises the steps of gas chromatography-mass spectrometry conditions; detecting the glyceryl monopalmitate, the glyceryl monooleate and the glyceryl monostearate; pretreating a sample; and detecting the sample. According to themethod, a simple liquid-liquid extraction method is adopted, a GC-MS analysis technology is combined, a novel method for analyzing the three monoglyceride emulsifiers in the dairy product is provided, the instrument detection limit ranges from 0.26 mg/L to 1.20 mg/L, and a novel technical means is provided for dairy product quality supervision.

The invention discloses an industrial production method of 1, 3-dioleic acid-2-palmitic acid triglyceride and a product. The method comprises the following steps of: predicting the minimum substrate ratio required by the reaction by establishing an enzymatic acidolysis reaction fatty acid balance model, and substituting palm stearin sn-1, 3 palmitic acid through one-step acidolysis by taking fatty acid from high-oleic-acid vegetable oil as an acyl donor; separating palmitic acid, glyceryl tripalmitate and part of glyceride by adopting low-temperature procedure fractionation to obtain liquid oil; and carrying out second-step acidolysis on the liquid oil, removing part of glyceride through lipase G50 after the reaction is finished, and removing fatty acid through reduced pressure distillation to obtain the product. According to the method, a model is established to predict the substrate ratio in the reaction process, the workload in the process optimization process is greatly reduced, the product obtained through two-step acidolysis coupled low-temperature procedure fractionation is less in free fatty acid use amount and lower in harmful substance generation amount, the production cost is greatly saved, and the method is suitable for industrial production.

The invention belongs to the fields of foods or medicines, and particularly discloses a milk product. The milk product comprises raw materials for providing protein, raw materials for providing fat and bifidobacteria, wherein the raw materials for providing protein are selected from animal milk, dried milk, whey protein powder and beta-casein; the raw materials for providing protein at least contain alpha-whey protein and beta-casein; the raw materials for providing fat at least comprise glyceryl palmitate, and based on palmic acid, the glyceryl palmitate contains 15% or above by weight of Sn-2 glyceryl palmitate; and the bifidobacteria is selected from at least one of bifidobacterium lactis, animal bifidobacteria, bifidobacterium longum, bifidobacterium breve, bifidobacterium adolescentis, bifidobacterium bifidum and bifidobacterium infantis. The invention further relates to a preparation method and application of the milk product. The milk product can prevent, reduce or relieve abdominal discomfort symptoms of infants and young children.

The invention relates to a coating film removing agent and a polymerization method for improving the porosity of a polyvinyl chloride resin, and belongs to the field of polymer polymerization. According to the present invention, the coating film removing agent comprises a glyceride compound and an organic solvent, wherein the glyceride compound is formed by mixing one or more than two materials selected from glyceryl monostearate, mixed glyceryl stearate, glyceryl laurate and glyceryl palmitate according to any ratio, the organic solvent is formed by mixing one or more than two materials selected from benzene, toluene, xylene, acetone, methanol and butanol according to any ratio, and a ratio of the glyceride compound to the organic solvent is 1:3-49; during the polymerization of polyvinylchloride, the use amount of the coating film removing agent is 0.2-15%; and the prepared polyvinyl chloride resin has significantly-increased pore structures on the particle surface, reduced apparentdensity, increased surface pore structure and increased DOP absorption, such that the results show that the internal porosity is increased, and the internal pore structure is increased.