225 results about "Palmitic acid" patented technology

The invention belongs to the technical field of microorganisms, and particularly relates to pseudomonas monteilii BDLZ-3 and application thereof in relieving continuous cropping obstacles of crops. The invention discloses a strain of pseudomonas monteilii BDLZ-3, the preservation number of which is CGMCC (China General Microbiological Culture Collection Center) No.34349. The pseudomonas monteilii BDLZ-3 is separated and screened from the nature for the first time, phenolic acid autotoxic substances generated in the ginseng continuous cropping obstacle process can be efficiently degraded, the degradation rate of benzoic acid can reach 95.36%, various phenolic acids such as vanillic acid, cinnamic acid, palmitic acid and gallic acid can be effectively degraded, and the degradation spectrum is wide; when the pseudomonas monteilii BDLZ-3 is applied in a field, the content of benzoic acid in soil can be effectively reduced, meanwhile, the occurrence of ginseng root diseases can be controlled to a certain extent, the prevention and treatment effect reaches 41.23%, the growth indexes such as root length and root thickness are remarkably improved, and the yield increasing effect is achieved.

The invention belongs to the technical field of crystal compound preparation, and particularly relates to a crystallization process of small-particle-size palmitic acid paliperidone. The invention discloses a small-particle-size palmitic acid paliperidone crystallization process, solves the problems of large particle size, non-uniform distribution and serious agglomeration of the existing process product, and meets the requirements of long-acting injection bulk drugs. The process comprises the following steps: adding paliperidone palmitate into a specific mixed organic solvent according to a solid-to-liquid ratio of 0.04-0.09 g / g, stirring, dissolving and filtering at 65-75 DEG C, transferring into a high-pressure closed crystallizer, and pressurizing to 1.0-1.5 MPa; cooling and decompressing in sections, stirring, filtering and washing, and drying in vacuum at the temperature of 40-50 DEG C and the vacuum degree of-0.1 MPa to obtain a finished product. According to the invention, the process parameters are accurately controlled, the product is an irregular short rod-like / granular crystal, the particle size is in a normal single peak, the Dv (90) is 7.866-9.514 microns, the HPLC (High Performance Liquid Chromatography) purity is greater than or equal to 99.92%, the yield is greater than or equal to 90.25%, micronization is not needed, the process is stable, the economical efficiency is good, and the industrial application value is realized.

The invention relates to the technical field of nutritional foods, and particularly discloses a nutritional composition for improving muscle functions and application. The nutritional composition for improving the muscle function, provided by the invention, is prepared from the following components in parts by mass: 40 to 60 parts of 1, 3-dioleic acid-2-palmitic acid triglyceride and 20 to 70 parts of 1-oleic acid-2-palmitic acid-3-linoleic acid triglyceride. A specific amount of OPO and OPL are compounded, and the two components have a synergistic effect, so that the exercise amount and the ATP content of an organism are remarkably increased, sarcopenia is relieved by improving energy metabolism, the muscle function is improved, and the food has a wide application prospect in the field of food and is worthy of popularization and application. The food can be used in health-care food, formula food for special medical purposes, infant formula food or special diet food.

The invention discloses a botanical attractant for camellia weevils and application of the botanical attractant, and belongs to the technical field of plant disease and pest control. The botanical attractant provided by the invention comprises palmitic acid and / or phytol. The palmitic acid and / or the phytol have / has remarkable and efficient attraction activity on the camellia weevils, and are suitable for detecting the population trend of the camellia weevils, efficient attraction control and the like. Compared with a traditional method for chemically preventing and treating the camellia weevils at the present stage, the method for preventing and treating the camellia weevils through the plant source attractant is milder, more efficient, environmentally friendly and free of toxic and side effects, and important value can be provided for market application and application and popularization.

The invention belongs to the field of functional substance research, and particularly relates to a nutritional composition for promoting absorption of fatty acid and mineral substances and application. The nutritional composition provided by the invention comprises necessary active ingredients shown as the following (I) and (II): (I) 1, 3-dioleic acid-2-palmitic acid triglyceride; (II) a milk fat globule membrane, and / or, 2 '-fucosyllactose; moreover, in the nutritional composition, the mass ratio of the necessary active component shown in (I) to the necessary active component shown in (II) is (5-10): (0.5-10). The combination of OPO and MFGM and / or 2 '-FL provided by the invention can be beneficial to promoting the absorption of the body to fatty acids and mineral substances, and especially can be beneficial to promoting the transmembrane transport capability of intestinal cells of the body to fatty acids and mineral substances, so that the absorption efficiency is improved.

The invention relates to the technical field of biological pharmacy, in particular to application of a recombinant protein DEL-1 in preparation of a medicine for resisting pancreatic beta cell inflammation. The recombinant protein DEL-1 has a remarkable inhibition effect on pancreatic beta cell inflammatory response induced by high glucose and high fat. Experiments show that in an islet beta cell inflammation model constructed by combining high glucose with palmitic acid, DEL-1 can significantly reduce the expression level of inflammatory factors such as IL-1beta, IL-6, TNF-alpha and the like. The DEL-1 is proved to have a definite effect of resisting pancreatic beta cell inflammation.

The invention provides a composition for promoting differentiation of intestinal immune cells as well as a preparation method and application of the composition. According to the composition, 1, 3-dioleic acid-2-palmitic acid triglyceride and breast milk oligosaccharide are used in a combined manner, so that monocytes can be effectively promoted to differentiate into intestinal macrophages, and inflammation is reduced to a certain extent. After the monocytes are differentiated into the intestinal macrophages, the intestinal immune homeostasis and intestinal microbiota inflammatory response can be regulated, so that the mucosal immune homeostasis and intestinal epithelial cell barrier function are maintained. Therefore, the composition provided by the invention can improve the intestinal immune barrier by promoting the monocytes to differentiate into the intestinal macrophages, and provides a new thought for improving the early intestinal barrier of infants through nutritional supplement.

The invention relates to the technical field of petroleum drilling fluid loss reduction, and discloses an anti-divalent salt fluid loss agent for drilling fluid, which is prepared by the following steps: step 1, beta-cyclohexylamine and 6-chloro-1-hexene are subjected to a reaction to obtain alkenyl beta-cyclohexylamine; step 2, initiating polymerization of alkenyl beta-cyclopentadiene, a hyperbranched monomer pentaerythritol triallyl ether and 2-acrylamide-2-methylpropanesulfonic acid under the action of azobis (isobutylamidine hydrochloride), so as to obtain an intermediate A; 3, 3-dimethylamino-1-propylamine and palmitic acid are subjected to a reaction, and an intermediate 2 is obtained; 4, the intermediate 2 and benzyl chloride are subjected to a reaction, and quaternary ammonium salt modified fatty acid is obtained; and 5, stirring and mixing the intermediate A, quaternary ammonium salt modified fatty acid and coupling agent modified walnut powder to obtain the divalent salt resistant filtrate reducer for the drilling fluid. The anti-divalent salt filtrate reducer for the drilling fluid has a relatively good anti-divalent salt effect.

The invention relates to the technical field of building materials, and discloses a mortar containing a nanometer material and a preparation method thereof, the mortar comprises 70-80 parts by weight of cement, 8-12 parts by weight of fly ash, 0.4-0.5 part by weight of a polycarboxylic acid water reducer, 0.4-0.6 part by weight of hydroxypropyl methyl cellulose, 1-2 parts by weight of the nanometer material, 2-3 parts by weight of modified silk fibroin and 40-50 parts by weight of water. Wherein the modified nano silicon dioxide is modified by gamma-aminopropyltriethoxysilane, the modified cubic nano calcium carbonate is subjected to compound modification by fumaric acid, sodium stearate and palmitic acid, and the modified silk fibroin is prepared by grafting modification by bis-aminopropyl terminated polysiloxane. According to the mortar, through optimization of component matching and modification treatment of the nano material and the silk fibroin, the mechanical property, durability and crack resistance of the mortar are remarkably improved, and the cost is controllable.

This invention belongs to the field of genetic engineering technology, specifically involving GmDREB2A2 Application of genes in regulating fatty acid content in plants. Overexpression. GmDREB2A2 Gene regulation of fatty acid content in plants. This invention utilizes an exogenous gene sequence expression vector to express the coding sequence shown in SEQ ID NO.1. GmDREB2A2 Gene sequences are introduced into plants to enable GmDREB2A2 Gene overexpression. Under these conditions, the plant's linolenic acid, linoleic acid, and palmitic acid content were significantly higher than the control, while the content of eicosatrienoic acid and erucic acid was significantly reduced.

The invention relates to the technical field of preparation of health-care products, in particular to a fat-soluble component nano-emulsion and a preparation method thereof. The preparation method comprises the following steps: stirring and dissolving the antioxidant and the caprylic / capric triglyceride, adding the vitamin D3 and the retinyl palmitate, and stirring and dissolving to obtain an oil phase; stirring the starch sodium octenylsuccinate in purified water until the starch sodium octenylsuccinate is dissolved, adding glycerol, and uniformly stirring and mixing to obtain a water phase; adding a small amount of water phase into the oil phase, and stirring at high speed to obtain primary emulsion; adding the primary emulsion into the residual water phase, stirring at a high speed, shearing and homogenizing to obtain a nano embedding emulsion; adding citric acid, cane sugar and sodium ascorbate into purified water, adding the nano embedding emulsion, and uniformly stirring to obtain a concentrated solution; and diluting the concentrated solution and adjusting the pH value to obtain the fat-soluble component nano-emulsion. The fat-soluble component nano-emulsion provided by the invention has good safety; the product can be easily absorbed and utilized by a human body, and is convenient for people to quickly supplement vitamin A and vitamin D3 required by the body.

The invention relates to the production of a triglyceride with Palmitic acid (P) in the middle position (XPX). A first transesterification process is used to produce a vegetable fat composition rich in palmitic acid and said intermediate composition is then further processed to produce triglycerides having a high proportion of its palmitic acid in the middle position.

The invention belongs to the technical field of organic synthesis, and relates to a preparation method of N-palmitoyl-O-phosphorylcholine serine and a deuterated substance thereof. The N-palmitoyl-O-phosphorylcholine serine and the deuterated substance thereof are obtained by taking L-serine methyl ester hydrochloride and palmitic acid as raw materials through amidation reaction, phosphate esterification reaction, quaternization reaction, oxidation reaction, reduction reaction and the like. The invention provides an approach for industrial production of the N-palmitoyl-O-phosphorylcholine serine and the deuterated substance thereof, and is very important for standardization of the detection method of the N-palmitoyl-O-phosphorylcholine serine.

The invention discloses a generalized pustular psoriasis diagnosis marker based on metabonomics and application of the generalized pustular psoriasis diagnosis marker. The diagnostic marker is prepared from one or more of the following 35 compounds: pyruvic acid, alpha-ketoisovaleric acid, 2-hydroxybutyric acid, 3-hydroxybutyric acid, methane thiophosphoric acid, proline, uracil, tranexamic acid, 4-aminobutyric acid, threonine, scopoletin, dodecanol, N-methyl-L-leucine, L-cysteine-glycine and L-kynurenine. The feed additive is prepared from the following raw materials: 3-hydroxybenzoic acid, allantoin, delta-tocopherol, xylofuranose, glucose-1-phosphoric acid, pyrophosphate, taurine, L-asparagine, phthalic acid, 4-(dimethylamino) azobenzene, 5-tert-butyl-1h-indole-2, 3-dione, quinic acid, glucose, histidine, lysine, palmitic acid, 7-methylguanine, oleic acid and whale acid. The marker can be used for accurately distinguishing patients with generalized pustular psoriasis from healthy people.

The present disclosure provides a method of reducing, preventing or treating an intestinal infection, preventing or treating a disease associated with protozoan parasite of the genus Eimeria, inhibiting an oocyst sporulation of a protozoan parasite or preventing a sporozoite invasion or reproduction, preventing or treating coccidiosis, promoting growth performance, controlling, treating and / or preventing necrotic enteritis in a subject, comprising administering to the subject an effective amount of a composition comprising a Crassocephalum rabens (CR), a bioactive extract thereof (CRE), an active ingredient(s) contained in a CR (CR_API) or CRE (CRE_API), a combination of two or more of a CR, a CRE, a CR_API and a CRE_API, or one or more of a-linolenic acid, citric acid, lactic acid, mannitol, palmitic acid, aspartic acid and 1-monomyristin.

The invention relates to a plant genetic engineering technology, in particular to a method for producing insect pheromone precursor substances in soybeans. Specifically, transgenic soybeans for expressing exogenous calyx flower plant thiolipase and insect desaturase are obtained through a genetic engineering technology, the transgenic soybeans can synthesize insect pheromone precursor substance cis-11-hexadecenoic acid, and therefore the biological efficiency and feasibility of plant factory pheromone production are proved. Furthermore, as the soybean is used as an oil crop with high acre yield, the soybean naturally contains high-content palmitic acid (C16: 0), the acre yield of the insect pheromone precursor substance cis-11-hexadecenoic acid is predicted to be far higher than that of other plants, and the plant is an ideal biological factory for mass production of the insect pheromone precursor substance cis-11-hexadecenoic acid.

The invention belongs to the technical field of edible oil, and particularly relates to edible oil with a blood fat reducing effect and a preparation method of the edible oil. Comprising the following raw materials in parts by weight: 1 to 10 parts of base oil, 90 to 100 parts of 1-oleic acid-2-palmitic acid-3-linoleic acid triglyceride, 0.3 to 0.5 part of an emulsifier, 0.05 to 0.09 part of an antioxidant and 0.02 to 0.05 part of a stabilizer. The base oil is composed of the sunflower seed oil and the tea seed oil, and the base oil and the 1-oleic acid-2-palmitic acid-3-linoleic acid triglyceride are matched for use, so that the oil has a good blood fat reducing effect, and can effectively reduce cholesterol, maintain cardiovascular health and prevent arteriosclerosis. The antioxidant is composed of the vitamin E, the alpha-mangostin and the oryzanol, all the components have a synergistic effect and jointly improve the oxidation stability of the edible oil, and meanwhile, the antioxidant is matched with the stabilizer, so that the storage life of the edible oil can be effectively prolonged, and the storage stability is improved.

The invention belongs to the field of water-based coatings, and discloses a water-based strippable coating used in the field of automobiles. The paint is prepared from the following components in parts by mass: 80 to 90 parts of polyurethane-acrylic emulsion, 1 to 3 parts of triethanolamine palmitate, 1 to 3 parts of flatting agent, 1 to 2 parts of defoaming agent, 0 to 0.5 part of thickening agent and 1 to 10 parts of inorganic filler. When the surface of a base material is coated with the water-based strippable coating, the film-forming property is good, the adhesive force and the mechanical property of the coating are moderate, and after weather resistance tests such as exposure to the sun and low temperature, the water-based strippable coating still has good performance and cannot be left on the base material.

The invention relates to the technical field of mineral flotation, and discloses a method for compounding a lithium oxide collecting agent in a low-temperature environment, and the lithium collecting agent comprises the following compounding raw materials in percentage by mass: 15-25% of palmitic acid soap; 10%-20% of sulfonated petroleum; 5% to 10% of iso-tridecanol polyoxyethylene ether; 8%-15% of fatty alcohol-polyoxyethylene ether; 3%-8% of polyoxyethylene ether sodium sulfonate; 5%-10% of dipropylene glycol monomethyl ether; 8%-15% of sodium carbonate; 2%-5% of sodium hydroxide; 0.5%-2.0% of sodium fluoride; 0.5%-2.0% of aluminum sulfate; 1%-4% of tannic acid; a synergistic surfactant system is formed by constructing palmitic soap and sulfonated petroleum as a main collecting frame and compounding isomeric alcohol ether, fatty alcohol-polyoxyethylene ether and polyoxyethylene ether sodium sulfonate, dipropylene glycol monomethyl ether is introduced as a low-temperature mutual solvent, and the low-temperature mutual solvent is used for collecting the high-temperature-resistant oil-displacing agent for the oil-displacing oil-displacing agent for the oil-displacing oil-displacing oil-displacing oil-displacing oil-displacing oil-displacing oil-displacing oil. The freezing point and viscosity of a collecting agent system are greatly reduced, the liquidity, uniformity and dispersion stability of the collecting agent are still kept when the collecting agent is used in the low-temperature environment of 0-15 DEG C, and the failure problem caused by low-temperature solidification or layering is fundamentally avoided.

This invention provides a high-gloss black, high-heat-resistant, and easily moldable polymethyl methacrylate (PMMA) composition and its preparation method. The composition comprises the following components in parts by weight: 40-75 parts of polymethyl methacrylate (PMMA) resin, 5-20 parts of toughening agent, 5-30 parts of SAN resin, 10-20 parts of heat resistant agent, 0.5-2 parts of release agent, and 1-5 parts of processing aid. This invention adds appropriate amounts of St-AN-MAH type heat resistant agent and MSAN resin, which synergistically improve the heat resistance of the material. Simultaneously, the addition of palmitic acid improves the material's molding properties. The addition of ACR type toughening agent enables the preparation of a PMMA material that combines toughness, high gloss blackness, high heat resistance, and easy molding, expanding the application range of this material and enabling its widespread use in new energy vehicles.

The current invention describes a high-throughput catalytic process for the production of diesel fuel from domestic agricultural products, furfuraldehyde and plant fatty acids. In the present process, reacting medium and long chain fatty anhydrides (such as capric, caprylic, lauric and palmitic) with furfuraldehyde by a Perkin condensation produces 2-n-alkenylfurans. In a second step, the 2-n-alkenylfurans are hydrogenated to form 2-n-alkyltetrahydrofurans. Basic fuel property testing (melting point, density, kinematic viscosity, derived cetane number and calorific value) of the 2-n-alkyltetrahydrofurans indicates they are potentially useful as fuels for diesel engines. One mixture composed of 2-octyl- and 2-decyltetrahydrofuran had the best combination of fuel properties including a low melting point (−39° C.), high cetane number (63.1), high flash point (98.2° C.) and low viscosity (2.26 mm2 / sec, 40° C.) which compares favorably with specifications for diesel #2 and biodiesel.

The invention discloses a generalized pustular psoriasis diagnosis marker based on metabonomics and application of the generalized pustular psoriasis diagnosis marker. The diagnostic marker is prepared from one or more of the following 35 compounds: pyruvic acid, alpha-ketoisovaleric acid, 2-hydroxybutyric acid, 3-hydroxybutyric acid, methane thiophosphoric acid, proline, uracil, tranexamic acid, 4-aminobutyric acid, threonine, scopoletin, dodecanol, N-methyl-L-leucine, L-cysteine-glycine and L-kynurenine. The feed additive is prepared from the following raw materials: 3-hydroxybenzoic acid, allantoin, delta-tocopherol, xylofuranose, glucose-1-phosphoric acid, pyrophosphate, taurine, L-asparagine, phthalic acid, 4-(dimethylamino) azobenzene, 5-tert-butyl-1h-indole-2, 3-dione, quinic acid, glucose, histidine, lysine, palmitic acid, 7-methylguanine, oleic acid and whale acid. The marker can be used for accurately distinguishing patients with generalized pustular psoriasis from healthy people.

The present application belongs to the technical field of electronic atomization, and particularly relates to a tobacco extract composition, a preparation method and application thereof. The tobacco extract composition comprises methylcyclopentenolone, guaiacol, neophytadiene, cedrene diol, dihydroactinidiolide, maltol, furaneol, palmitic acid, 6-ethyl-5,6-dihydro-2H-pyran-2-one and scopoletin; the range of (methylcyclopentenolone+guaiacol) / neophytadiene is 0.01-2.5 by mass; the guaiacol content is 0.003-0.02 mg / g by dry matter mass; the tobacco roasting aroma is richer, the tobacco roasting sweet note is more obvious, and the tobacco-like feeling is better. The preparation method comprises: extracting tobacco raw materials twice at medium and low temperatures to obtain tobacco flavor substances, extracting the tobacco raw materials at high temperature to obtain smoke flavor substances, and mixing the tobacco flavor substances and the smoke flavor substances at a certain ratio to obtain the tobacco extract composition.

The invention relates to the technical field of biomedicine, in particular to application of an E3 ubiquitin enzyme inhibitor in non-alcoholic fatty liver related drugs. The TRIM23 has obvious influence on the non-alcoholic fatty liver disease, and hepatic cell lipid deposition induced by mixing of palmitic acid and oleic acid can be improved by inhibiting expression of the TRIM23 at the cellular level; on the contrary, promoting the expression level of the TRIM23 can aggravate hepatocyte lipid accumulation induced by mixing of palmitic acid and oleic acid. Therefore, the TRIM23 inhibitor can be used for preparing the medicine for preventing or treating the fatty liver.

The present invention relates to a composition for a formula for infants or young children, the composition comprising a partially hydrolyzed protein, ionized calcium and an oil mixture comprising palmitic acid esterified to a triacylglycerol wherein the palmitic acid is esterified at the sn-2 position of the triacylglycerol, the esterified palmitic acid being in an amount of at least 20% by weight of the total palmitic acid. Furthermore, the present invention relates to an infant formula comprising said composition and the use of said composition or infant formula.

The application discloses a composition for improving bone density and application thereof, and belongs to the technical field of food. The composition is prepared by using 1,3-dioleic acid-2-palmitic acid triglyceride, osteonectin and oligosaccharide in combination, and through the interaction between the components, the absorption and utilization of each other are promoted, the growth and development of the bone of an infant in the growth period are improved, the bone mineral content and bone density are improved, the bone health is promoted, and the composition is safe and has no side effect. Through optimization of the types of the oligosaccharide, it is found that the combination of oligogalactose and 2'-fucosyllactose can better improve the growth and development of the bone of the infant in the growth period.

The present application relates to a kind of fat powder for reducing weaning piglet dead rate and its preparation method and application, and the composite lipid in the preparation raw material of fat powder includes 1,3-di-oleic acid-2-palmitic acid triglyceride, 24 degrees palm oil, rice bran oil, coconut oil, linseed oil, caprylic triglyceride, capric acid triglyceride, alpha-lauric acid monoglyceride and tributyrin.The present application develops the fat acid composition close to pig milk fat structure, let piglet continue lactation period in weaning period to enable approach mainly with lipid, meet the compound energy demand of fast, medium and slow, avoid falling into energy potential difference;And the specific combination of medium and short chain fatty acids, both can improve the energy efficiency of weaning piglet, also have bacteriostatic disease characteristics, can improve the immunity of piglet, reduce the diarrhea rate.This composite lipid overcomes the problem such as piglet energy deficiency and indigestion caused by single raw material oil due to unsuitable lipid structure, can significantly reduce weaning stress, reduce the diarrhea rate and dead rate.

The invention discloses traditional Chinese medicine substitutional tea granules for aiding digestion and reducing fat and a preparation method thereof, probiotic microcapsules, traditional Chinese medicine lipid nanoparticles and Tibetan tea active ingredients are combined, and the effects of improving digestion and reducing fat are achieved through a triple synergistic mechanism. The probiotic microcapsules are embedded with citrus fibers through the poria cocos extract and then are mixed with the Chinese yam thick soup for freeze-drying, so that the survival rate of probiotics and the intestinal colonization effect are remarkably improved. The rhizoma alismatis and semen cassiae extracts are encapsulated in lecithin / lauric acid / palmitic acid lipid nanoparticles, so that unpleasant odor is covered, slow release is realized, and the metabolic regulation effects of palmitic acid and lauric acid are coordinated. In addition, Tibetan tea is used as a compound substrate, traditional Chinese medicines such as codonopsis pilosula, hawthorn and poria cocos are fused, honey, coix seeds and Chinese yam are used as auxiliary materials for granulation, and medicinal material natural polysaccharide is used for replacing a chemical adhesive. The product has probiotic activity protection, traditional Chinese medicine slow release and tea fragrance palatability, and has remarkable synergistic advantages in the aspects of improving the digestion function and regulating body fat.

The invention is suitable for the technical field of additive manufacturing, and provides a printable wax-based sacrificial template and a metal-based composite material constructed by using the printable wax-based sacrificial template, the template comprises a paraffin matrix, microcrystalline wax, polyethylene wax, an ethylene-vinyl acetate copolymer and a composite organic acid auxiliary agent composed of stearic acid and palmitic acid according to a specific ratio, the formula is precisely designed to achieve excellent direct ink writing (DIW) printing performance, and a novel'solvent extraction-low temperature pyrolysis' two-stage synergistic demolding process is adapted. Through collaborative design of a material formula, a printing process and a demolding strategy, the technical contradiction between stable forming and lossless demolding of a high-precision sacrifice template with a complex structure is overcome, and the high-performance metal-ceramic composite material can be manufactured.

This application discloses a ductility enhancer, modified No. 50 asphalt, and a preparation method thereof. The ductility enhancer comprises, by weight, 50 to 70 parts vegetable oil, 20 to 30 parts linoleic acid, 5 to 15 parts palmitic acid, and 0.5 to 2 parts phenolic anti-aging agent. This application can significantly improve the ductility value of No. 50 asphalt at low temperatures without adversely affecting the softening point, penetration, or other high-temperature indicators of No. 50 asphalt. Furthermore, the No. 50 asphalt of this application exhibits good high-temperature storage stability. The ductility enhancer described in this application is easy to prepare and use in production. The formulation components of the additive can be mixed evenly by simple mechanical stirring, and it is easy to disperse evenly into the asphalt without the need for expensive modification equipment and a long development time.