65 results about "GLYCERYL DISTEARATE" patented technology

The invention discloses a preparation method of cocoa butter equivalent. The method comprises: mixing grease rich in symmetric triacylglycerol1-palmitic acid-2-oleic acid-3-glyceryl stearate and 2-oleic acid-1, 3-glycerol distearate with grease rich in symmetric triacylglycerol2-oleic acid-1, 3-dipalmitin uniformly according to a specific ratio to form mixed oil, in a solvent and under a stirring speed of 50-80r / min, heating the mixed oil to 35-70DEG C to destroy all the crystals in the system, and then carrying out two-level or three-level fractionation to enrich the cocoa butter equivalent component rich in symmetric triacylglycerol. The cocoa butter equivalent produced by the method provided by the invention has better compatibility with cocoa butter, and can realize interworking with cocoa butter at a larger proportion.

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 relates to a two-step method of producing glyceryl monostearate and glyceryl distearate with low free glycerol. The glyceryl monostearate and glyceryl distearate prepared through the method has high quality, high yield and low cost. The method includes the steps of: (1) adding glycerol and a catalyst into a reactor and stirring, vacuumizing and heating the components, and vacuum-heating the components until the catalyst is all dissolved in glycerol; (2) stopping vacuum equipment and adding hydrogenated oil to perform a reaction, feeding nitrogen gas and maintaining the pressure of the nitrogen gas, and continuously heating the components to perform a reaction; and (3) stopping heating to start temperature reduction, and at the same time, slowly adding the rest of the hydrogenated oil with temperature reduction speed and hydrogenated oil addition speed controlled, maintaining the temperature until the reaction is finished, and then cooling the reaction product to obtain the finish products.

The invention discloses a stable enalapril maleate tablet and a preparation method thereof, and belongs to the technical field of the pharmaceutic preparation. The enalapril maleate tablet is prepared by the following components by weight: 0.255-1.02 parts of enalapril maleate, 7-9 parts of lactose, 0.6-1.8 parts of corn starch, 0.1-0.3 parts of glycerol distearate, and 0.1-0.2 parts of lake or ferric oxide. The selected accessories and the preparation technology are capable of remarkably reducing the degrading speed of the enalapril maleate through the mutual synergistic effect, greatly improving the stability of the enalapril maleate tablet product, and solving the quality problem existing in the current product all the time. The lake or ferric oxide is added in the tablet for the good shading function, so the enalapril maleate photosensitivity problem can be effectively solved.

The invention discloses a preparation method and a product of water-soluble microcapsule fat powder. The water-soluble microcapsule fat powder comprises disodium hydrogen phosphate, soybean protein isolate, maltodextrin, corn syrup, lactose, Arabic gum, water, butyric acid mono / diglyceride, glyceryl distearate, sucrose ester and oil. On the basis that the total mass of the above raw materials is 100%, a formula of the oil comprises, in percentage by mass, 56-58% of soybean oil, 4-6% of olive oil, 14-15% of coconut oil, 1-2% of cow milk fat, 10-12% of corn oil and 10-12% of peanut oil. According to the water-soluble microcapsule fat powder provided by the invention, the content of each raw material is optimized, and a specific preparation process is combined, so the prepared water-soluble microcapsule fat powder is high in embedding rate and particle size, has a good effect of reducing porcine diarrhea, and is widely applied to the field of pig feed.

The invention provides a blumea riparia tablet, which comprises the following components: therapeutically effective amount of blumea riparia extractive, silicified microcrystalline cellulose, mannitol, polyacrylic acid resin IV, titanium dioxide, sodium carboxymethyl starch, colloidal silicon dioxide and glyceryl distearate. The invention also provides a preparation process of the blumea riparia tablet. With the same medicinal material content, the blumea riparia tablet can reduce the everyday doses of a patient. In the invention, the auxiliary materials are reasonably selected and prepared, so that the coordination role of components in the auxiliary materials can be fully played. The preparation process is simple, the process flow is short, and the production is easy.

The invention relates to the technical field of skin care products, in particular to fine line fading and moisturizing type water emulsion and a preparation method thereof. Comprising the following raw materials: allantoin, butanediol, glycerol, cetyl-PG hydroxyethyl palmitamide, retinol, PEG-150 glyceryl distearate, sodium hyaluronate, squalane, sweet almond oil, alpha-glucoside hesperidin, L-arginine, PEG50 hydrogenated castor oil, essence and deionized water. The moisturizing and hydrating water emulsion is prepared from the following raw material components in percentage by mass: 2 to 5 percent of allantoin, 2 to 4 percent of butanediol, 3 to 5 percent of glycerol, 1 to 3 percent of cetyl-PG hydroxyethyl palmitamide, 0.8 to 1.2 percent of retinol, 0.1 to 0.3 percent of PEG-150 glyceryl distearate, 3 to 5 percent of sodium hyaluronate, 2 to 4 percent of squalane, 4 to 6 percent of sweet almond oil, 0.2 to 0.4 percent of alpha-glucoside hesperidin, 2 to 5 percent of L-arginine, 0.3 to 0.9 percent of PEG50 hydrogenated castor oil, 0.1 to 0.3 percent of essence and a proper amount of deionized water. Moreover, the skin irritation is low, fine wrinkles can be effectively faded, and the overall using effect is better.

The invention provides a low-lactose yoghurt with a long shelf life. The raw materials for making it include: 60 to 98.9 parts by weight of milk, 0.01 to 0.5 parts by weight of an emulsifier, 3 to 14 parts by weight of a thickener and 7 to 12 parts by weight of sugar; And the emulsifier is one or more combinations of sucrose fatty acid ester, glyceryl monostearate, sodium stearoyl lactylate and glyceryl distearate; the thickener is pectin, sodium caseinate , agar, gelatin, modified starch, gellan gum, propylene glycol alginate, xanthan gum, or a combination of several. The low-lactose long-shelf-life yoghurt has good stability. The present invention also provides a method for preparing the above-mentioned low-lactose long-shelf-life yogurt, which controls the fermentation temperature and performs secondary sterilization, and the low-lactose long-shelf-life yogurt prepared by the method has better stability.

A pH sensitive carrier which includes at least one pH sensitive compound selected from the group consisting of deoxycholic acid, cholic acid, ursodeoxycholic acid, chenodeoxycholic acid, hyodeoxycholic acid, C27 bile acid, glycodeoxycholic acid, glycyrrhizic acid, glycyrrhetinic acid and salts thereof, and at least one amphipathic substance selected from the group consisting of a phosphatidylcholine having 10 to 12 carbon atoms, a polyoxyethylene sorbitan monofatty acid ester having 12 to 18 carbon atoms, a sorbitan fatty acid ester having 16 to 18 carbon atoms, glycerol monooleate, glycerol dilaurate, glycerol distearate, glycerol dioleate, polyoxyethylene castor oil and alpha-tocopherol, and which is capable of developing a membrane disruptive function promoting effect.

The invention belongs to the technical field of textile, and discloses a polyester fiber with a health function, which is prepared by the following raw materials in parts by weight: 90 parts of PET slices, 3 parts of glycerol 1,2-distearate, 2 parts of hydroxyethyl cellulose, 2 parts of Chinese medical extract, 1 part of chitosan, 1 part of titanium dioxide powder and 1 part of silicon dioxide powder. The invention also discloses a preparation process of the polyester fiber. The polyester fiber has a certain health function, is unique in preparation process and reasonable in compatibility of traditional Chinese medicines, and can be used for the effective auxiliary treatment of insomnia.

The invention provides a method for separating oleic acid from a byproduct of OPO grease and oleic acid. The method comprises the following steps: (1) a seed crystal comprises the following components in percentage by mass: 70-100 wt% of stearic acid, 0-20 wt% of palmitic acid triglyceride and 0-15 wt% of glyceryl monostearate or glyceryl monostearate and glyceryl distearate; (2) adding the seed crystal into the OPO by-product according to the addition amount of 10-50wt%, and stirring at the temperature of 70 DEG C under the protection of N2 to obtain crystal slurry; (3) pumping the crystal mush into a crystallization kettle, protecting by N2, stirring, setting the initial temperature of the crystallization kettle to be 70 DEG C, and preserving heat for 1 hour; reducing the temperature from 70 DEG C to 55 DEG C at 3-5 DEG C / h; the temperature is reduced from 55 DEG C to 20 DEG C at the speed of 2-3 DEG C / h; finally, the temperature is reduced to 15-8 DEG C from 20 DEG C at the speed of 1-2 DEG C / h, heat preservation is conducted for at least 5 h, and a crystal substance is obtained; carrying out filter pressing on the crystal substance at the pressure of 0.6 MPa and the temperature of 8-15 DEG C to obtain a filter cake and filtrate; according to the method, the OPO byproduct is used as a raw material to recover high-quality oleic acid, the purity of the oleic acid is more than 80%, and the recovery rate is more than 60%.

The invention belongs to the technical field of polymer composite materials, and relates to a preparation method of a cigarette tow containing a composite phase-change material. The preparation method comprises the following steps: uniformly mixing polypropylene, whitening master batch, vinyl acetate and a copolymer thereof with the composite phase-change material according to a mass ratio of (25-10): (1-3): (1-4): (3-8), and fully drying to obtain a composite material, wherein the crystalline hydrate comprises but is not limited to mirabilite, alum, goslarite and chalcanthite, the cooling particles are polylactic acid particles, glyceryl tristearate, glyceryl monostearate and glyceryl distearate, the composite phase change material is prepared by melting crystalline hydrate and cooling particles at high temperature, stirring and mixing uniformly and then cooling, and melt spinning is performed in a spinning machine; and after stretching, carrying out immersion cleaning, water washing, curling and low-temperature and low-pressure drying in an alcohol solution. The preparation method is simple, and an existing polypropylene tow production line can be used for production. The prepared composite phase change material-containing fiber for the cigarette filter tip has positive effects on smoke cooling and adsorption of harmful substances in smoke.

The invention provides a preparation method of coated plant essential oil, and relates to the technical field of plant essential oil coating, and the preparation method comprises the following steps: (1) adding a carrier into a mixer; (2) heating and melting plant essential oil and palm oil, and then spraying into the mixing machine to obtain plant essential oil particles; (3) heating and melting the glyceryl monostearate and the glyceryl distearate at the temperature of 65-85 DEG C; and (4) uniformly spraying the melted glycerol monostearate and glycerol distearate on the plant essential oil particles to obtain the coated plant essential oil, the whole production process does not have a drying process, the loss of the plant essential oil is small, the waste is avoided, the coating effect is good, and the coated plant essential oil prepared by the invention is green, efficient, free of contraindication compatibility, free of drug resistance, stable in product and suitable for industrial production. The high-temperature damage in the feed preparation process can be effectively avoided.

The invention relates to a composite emulsifying agent with oxidation resistance. The composite emulsifying agent comprises the components of vitamin E, sucrose fatty acid ester, glyceryl monostearate, glyceryl distearate, a mixture of guar gum and xanthan gum with a mass ratio of 1:1, citric acid, NaHCO3, and propylene glycol fatty acid ester. With the antioxidant composite emulsifying agent provided by the invention, excellent emulsifying effect can be provided even if an object comprises various oils and various proteins. The emulsifying agent is stable and non-deteriorated after long-time placement. The application performance of the emulsifying agent is good.

The invention discloses micro-capsule calcium chloride for dairy cows as well as a preparation method and application of the micro-capsule calcium chloride. The microcapsule calcium chloride feed additive is prepared from the following components in percentage by mass: 25-65% of a capsule material, 1-10% of an emulsifier and 30-70% of calcium chloride, wherein the capsule material is hydrogenatedoil or paraffin, and the emulsifier is at least one selected from the group consisting of glyceryl monostearate, glyceryl distearate and glycerol monolaurate. According to the invention, materials aresheared, homogenized and emulsified through a dispersing and stirring kettle so as to allow calcium chloride and a capsule material to be mutually embedded in a molecular form, and the micro-capsulecalcium chloride is prepared through a high-speed suspension condensation granulation process; the micro-capsule calcium chloride is not damaged when passing through a rumen, starts to disintegrate and dissolve out in the true stomach of a dairy cow and is efficiently absorbed in the intestinal tract of the dairy cow, so the effect of an anionic salt is given to play, and metabolic diseases causedby postpartum hypocalcemia of the dairy cow are reduced. A microcapsule calcium chloride feed additive provided by the invention remarkably improves the moisture absorption of calcium chloride, covers the irritation of calcium chloride, and improves the palatability of calcium chloride.

The invention belongs to the technical field of substance detection, and particularly relates to a method for determining the content of glyceryl monostearate and glyceryl distearate in promestriene cream. The blank solution, the test sample solution and the reference substance solution are taken and injected into a liquid chromatograph for detection, a chromatogram is recorded, and the test sample solution is prepared according to the following steps that methyl alcohol and acetonitrile are added into the promestriene cream, heating and dissolving are conducted, then methyl alcohol and acetonitrile are used for dilution, and the test sample solution is obtained. According to the method disclosed by the invention, by selecting the mobile phase and controlling the running gradient, the peak pattern of the glyceryl monostearate and the glyceryl distearate in the HPLC spectrum is good, the number of theoretical plates and the response value are high, the separation degree among the peaks meets the specification, and the accuracy meets the quantitative detection requirement. Meanwhile, the interference of other components in the promestriene cream on the determination of glyceryl monostearate and glyceryl distearate is avoided, and the method has good specificity and accuracy.

The invention provides an essence lotion with an anti-aging function and a preparation method thereof, and belongs to the technical field of cosmetics, the essence lotion comprises a phase A, a phase B, a phase C and a phase D, wherein the phase A consists of glyceryl distearate, jojoba oil and vitamin E; the phase B is prepared from deionized water, glycerol, 1, 3-propylene glycol, methylparaben and polyoxyethylene sorbitan monooleate; the phase C is a citric acid solution; and the phase D consists of exosomes from four fruit sources of blueberries, pomegranates, lemons and grapefruits. According to the technical scheme, exosomes from blueberries, pomegranates, lemons and grapefruits are scientifically compounded, an anti-aging network with a synergistic effect is constructed, good stability and biocompatibility are achieved, and many problems existing in traditional anti-aging cosmetic ingredients are solved.

The invention relates to a two-step method of producing glyceryl monostearate and glyceryl distearate with low free glycerol. The glyceryl monostearate and glyceryl distearate prepared through the method has high quality, high yield and low cost. The method includes the steps of: (1) adding glycerol and a catalyst into a reactor and stirring, vacuumizing and heating the components, and vacuum-heating the components until the catalyst is all dissolved in glycerol; (2) stopping vacuum equipment and adding hydrogenated oil to perform a reaction, feeding nitrogen gas and maintaining the pressure of the nitrogen gas, and continuously heating the components to perform a reaction; and (3) stopping heating to start temperature reduction, and at the same time, slowly adding the rest of the hydrogenated oil with temperature reduction speed and hydrogenated oil addition speed controlled, maintaining the temperature until the reaction is finished, and then cooling the reaction product to obtain the finish products.

The invention discloses an organic silicon water repellent, a paper diaper surface layer hydrophobic spraying treatment process and a paper diaper. The organic silicon water repellent is composed of the following components by weight of 10-18 percent of diethylene glycol monobutyl ether; 5-15 percent of dimethyl silicone oil; 4 to 9 percent of glycerol distearate; 0.2 to 1 percent of glycerol; 0.5 to 2 percent of distearyl dimethyl ammonium chloride; and the balance of water. The organic silicon water repellent is applied to the paper diaper, so that the prepared paper diaper has a one-way moisture guiding function and has relatively low sliding seepage amount and back seepage amount, and the effects of fast urine transmission, strong water locking and no reverse seepage are achieved.

The invention provides enalapril maleate capsules and a preparation method thereof. The enalapril maleate capsules comprise the following raw and auxiliary materials in parts by weight: 3-5 parts of enalapril maleate, 60-80 parts of filler, 0.2-3 parts of zinc stearate and 1-3 parts of glycerol distearate. The preparation method comprises the following steps: 1) uniformly mixing enalapril maleate and the filler in an equivalently increasingly adding manner, and screening the mixture through a 100-mesh sieve for later use; and 2) uniformly mixing the powder obtained in the step 1) with zinc stearate and glycerol distearate in prescription amounts in an equivalently increasingly adding manner, screening the mixture through a 100-mesh sieve, and tabletting the dry powder to obtain the enalapril maleate capsules. The capsules prepared from simple raw and auxiliary materials are high in stability and high in dissolving rate.

The invention refers to a process for preparing a polymer-coated hard shell capsule, wherein the hard shell capsule comprises a body and a cap, wherein in the closed state the cap overlaps the body either in a pre-locked state or in a final-locked state, wherein the hard shell capsule is provided in the pre-locked state and coated with a coating solution, suspension or dispersion comprising or consisting ofa) at least one (meth) acrylate copolymer a), comprising polymerized units of 5 to 25% by weight of methacrylic acid and 75 to 95% by weight of C1-to C4-alkylesters of methacrylic acid and / or C1-to C4-alkylesters of acrylic acid;b) 1 to 25, preferably 5 to 18, % by weight, based on the total weight of the at least one (meth) acrylate copolymer a), of at least one alkali or ammonium salt of a saturated aliphatic monocarboxylic acid having 10 to 30 carbon atoms;c) glycerol monostearate and / or glycerol distearate;d) at least one plasticizer; ande) optionally at least one additive;to obtain a coated hard shell capsule in the pre-locked state. Furthermore, the invention refers to a polymer-coated hard shell capsule obtained from the process according to the invention and the use of the polymer-coated hard shell capsule for delayed or sustained release.

The invention relates to sleeping milk and a preparation method thereof. The sleeping milk is prepared from the following raw materials: raw milk, theanine, casein hydrolysate, alpha-lactalbumin, sucrose fatty acid ester, glyceryl monostearate, glyceryl distearate, buffer salt and a compound extract, the compound extract comprises a combination of an oat kernel extract, a lotus seed extract, a red date extract and a banana extract. According to the invention, the theanine, the casein hydrolysate, the alpha-lactalbumin and the composite extract are combined for use, and the oat kernel extract, the lotus seed extract, the red date extract and the banana extract are added, so that the four components can interact with one another and have mutual normal-phase influence; the product has an excellent synergistic promotion effect in the aspects of soothing the nerves and helping sleep, and can further improve the sleep-soothing effect of the product after being added into the dairy product.

The invention belongs to the technical field of food processing, and particularly relates to cheese chestnut kernels and a preparation method thereof. The formula of the cheese chestnut kernels comprises the following raw materials in parts by weight: 400 parts of chestnut kernels, 1-3 parts of cheese, 1-4 parts of edible salt, 3-5 parts of milk powder, 1-3 parts of skimmed milk powder, 0.3-0.5 part of an emulsifier, 1.0-1.4 parts of cheese powder essence, a proper amount of cheese liquid essence and 80-90 parts of water. Wherein the emulsifier is selected from at least one of glyceryl monostearate and glyceryl distearate, palmitic acid and stearic acid, but at least comprises glyceryl monostearate and glyceryl distearate, and the dosage of glyceryl monostearate and glyceryl distearate at least accounts for 50% of the total weight of the emulsifier. A cheese-containing feed liquid which is uniform and good in stability is prepared, the problem that the cheese is difficult to form a uniform and stable feed liquid system is solved, the cheese and the chestnut kernels achieve a very good fusion effect, then the chestnut kernels keep the mellow and fragrant cheese taste to the maximum extent, and the fragrance is lasting and fresh.

The invention discloses essential oil for body massage. The preparation method of the essential oil for body massage comprises the following steps: carrying out stirring on grape seed oil, jasmine flower essential oil and safflower essential oil for 10-20 minutes at the stirring temperature of 50-60 DEG C and the stirring speed of 60-100 r / min, cooling to 30-40 DEG C, adding deep sea shark liver oil, collagen, algin and glyceryl distearate in a stirring state, and continuously stirring to obtain a prefabricated material; adding linseed oil, mint essential oil, pure tea seed oil, holly essential oil, lavender essential oil and golden cypress essential oil into the prefabricated material, uniformly stirring, and filtering to obtain the essential oil for body massage. The invention also discloses a using method of the essential oil for body massage, which comprises the following steps: coating the essential oil for body massage on the surface of skin, lightly massaging until the skin is icy, and cleaning with clear water or wiping with clean soft cloth.

The invention discloses a preparation method of zero-trans low-saturation high-beta'crystal form margarine, and belongs to the technical field of food processing. The method comprises the following steps: by taking camellia oil and palm stearin in a mass ratio of 7: 3 as base oil, adding 7.33% of immobilized lipase to carry out enzymatic transesterification, centrifuging to remove the lipase, adding 6% of glyceryl distearate to prepare base oil, mixing with 1% of sucrose fatty acid ester and 15% of water, emulsifying, quenching, kneading and curing to obtain a finished product. According to the invention, an enzymatic transesterification and oleogel dual structuring technology is adopted, and process parameters are accurately regulated and controlled, so that the product realizes zero trans-fatty acid residue, the saturation degree of transesterification grease is only 30.39%, the beta'crystal form proportion is high, and the caseinization property and the stability are excellent. The method is mild in process and easy to industrially popularize, and the prepared margarine can be widely applied to baked products such as cookies and bread and serves as an ideal substitute of animal butter.

The invention belongs to the technical field of degradable plastic master batches, and particularly relates to a method for preparing a degradable plastic master batch from soluble salt assisted plasticized amylose. The method comprises the following steps: preparing amylose, soluble salt and water into slurry, and slowly performing stirring and gelatinizing at 80-90 DEG C to obtain starch gelatinized slurry for later use; kneading the starch gelatinized slurry, an ethylene glycol plasticizer and polyadipate-1,4-butanediol ester diol, and carrying out vacuumizing and draining at 80-90 DEG C toform pre-plasticized starch; mixing pre-plasticized starch with diphenylmethane-4,4 '-diisocyanate in a nitrogen atmosphere, slowly performing stirring and reacting at 80-90 DEG C for 20-30 minutes,feeding the reaction material into a screw extruder, performing reacting and extruding at 110-120 DEG C under a vacuumizing condition, performing washing with water, and performing drying; and uniformly mixing the obtained dried material with glyceryl monostearate, glyceryl distearate, polyethylene wax and EVA, adding the mixture into a screw extruder for extrusion, and carrying out air cooling die surface granulation to obtain the degradable plastic master batch. The starch obtained by the invention has stable thermoplasticity.

The invention relates to a cold-expelling and dampness-eliminating health-care cream and a preparation method thereof, and belongs to the field of external traditional Chinese medicine preparations. The health-care cream is prepared from traditional Chinese medicine extracts such as radix aconiti preparata, pseudo-ginseng and ligusticum wallichii and auxiliary materials such as glyceryl monostearate and glyceryl distearate according to a scientific ratio and a special process. The product has the health-care effects of warming interior to dispel cold, promoting blood circulation to remove meridian obstruction and relieving swelling and pain, and is suitable for sub-health symptoms such as local pain, swelling and numbness caused by wind-cold damp evil. Water extraction, alcohol precipitation and emulsification processes are creatively combined, and the transdermal absorption rate and stability of the medicine are remarkably improved through a specific matrix formula. Clinical verifications show that the total effective rate on the cold-dampness type arthralgia reaches 94.3%, and skin irritation reaction is avoided.

The invention relates to a meleumycin enteric capsule. The meleumycin enteric capsule comprises the following components in parts by weight: 40-45 parts of meleumycin, 30-32 parts of PVP / VA, 210-220 parts of isopropyl alcohol, 35-45 parts of talcum powder, 260-270 parts of acrylic resin, 6-8 parts of triethyl citrate, 6-8 parts of magnesium oxide, 1-4 parts of polysorbate 80, 3-5 parts of glyceryl monostearate and glyceryl distearate, 3-4 parts of hydroxy propyl methyl cellulose and 330-360 parts of purified water. The meleumycin enteric capsule is safe and effective, and has a good dissolution effect in the intestinal tract. The invention further discloses a preparation method of the meleumycin enteric capsule, the proportion of all coatings is introduced, and the process is simple and feasible and suitable for industrial production.

The invention relates to the technical field of sewage treatment, and particularly discloses an efficient composite carbon source, a preparation method thereof and application of the efficient composite carbon source in a sewage deep denitrification method. The efficient composite carbon source disclosed by the invention is prepared from the following components: sodium acetate, ethanol, glucose, trace elements, a functional additive and water, a preparation method of the functional additive comprises the following steps: placing starch in an aqueous solution of catechol and diethylenetriamine to obtain modified starch; and then mixing the modified starch with butylated hydroxytoluene and glyceryl distearate to obtain the modified starch. The AAOAO technology is adopted, the carbon source coupling local complete mixing type plug flow aerobic bioreactor is used in a sewage deep nitrogen removal method, and the nitrogen removal efficiency of sewage can be effectively improved.