1245 results about "Caprylic acid" patented technology

The present invention relates to a soft capsule which is easily disintegrated in the stomach, wherein the contents thereof are not easily leaked at the time of mastication, which is obtained by providing a soft capsule comprising (2R)-2-propyloctanoic acid or a salt thereof with at least one property, preferably all properties, selected from (A) wherein it has a strength of 150 to 400 N by a cracking test; (B) wherein it has a disintegration time of 3 to 10 minutes by the disintegration test stipulated in Japanese Pharmacopoeia; (C) wherein the capsule shell has a shell thickness of 0.05 to 0.50 mm; (D) wherein the capsule shell has a first seam thickness of 0.10 to 0.55 mm; (E) wherein the capsule shell has a second seam thickness of 0.05 to 0.50 mm; (F) wherein the capsule shell has a water content of 5.0 to 9.0%.

A pest-combating composition including sodium lauryl sulfate and one or more of C6-12 fatty acids, preferably lauric and / or capric and / or caprylic acid, soy methyl ester, and 2-undecanone, and methods of combating pests utilizing same, are disclosed. The compositions can include a carrier oil such as silicon oil, soy methyl ester, or a vegetable oil, and can be in the form of an emulsion. The composition may be constituted as a spray composition, an aerosol, a lotion, a paste, or another compositional form. Pests that may be usefully combated with such composition include flying insects, including flies, mosquitoes, and wasps, ants, including arthropods such as fire ants, ticks, fleas, cockroaches, silver fish, thrips, gnats, aphids, Japanese beetles, and agricultural and horticultural arthropods and insects including beetles (potato and bean), flea beetles, fleahoppers, squash bugs, slugs, leaf hoppers, harlequin bugs, milk weed bugs, spiders, mites, lice, rodents, and deer.

A cosmetic and / or pharmaceutical composition containing: (a) a glycerol monocaprylate; (b) a fatty alcohol; (c) optionally, a surfactant selected from the group consisting of an anionic surfactant, a nonionic surfactant, a cationic surfactant, an amphoteric surfactant, a zwitterionic surfactant, and mixtures thereof; and (d) optionally, water.

The invention discloses an amphiphilic triblock copolymer with acid sensitivity and a preparation method and an application thereof. The preparation method comprises the following steps of: modifying polyethylene glycol with a hydroxyl group at the end to enable the structure of polyethylene glycol to contain a diazido ethyl diacetal end group, namely polyethylene glycol contains the diazido ethyl diacetal group at the end; carrying out ring-opening polymerization on cyclic ester monomers by utilizing propargyl alcohol as an initiator and stannous caprylate as a catalyst to obtain biodegradable polyester with alkynyl at the single end; and finally, under the action of a 'click' chemical catalyst and ligand, carrying out 'click' chemical reaction on polyethylene glycol containing the diazido ethyl diacetal group at the end and the biodegradable polyester with alkynyl at the end to obtain the biodegradable amphiphilic triblock copolymer with acid sensitivity. The biodegradable amphiphilic triblock copolymer with acid sensitivity has good biocompatibility, biodegradability and acid sensitivity, and can be used as a drug carrier.

The invention discloses an acne treatment composition and application thereof and an acne treatment cream containing the acne treatment composition. The acne treatment composition comprises shea butter, Chinese corktree bark extract, salix nigra bark extract, herba portulacae extract, purple perilla extract, asiatic pennywort herb extract and mung bean extract, effectively conditions acne skins and inhibits reproduction of acne, smoothens acne and removes acne marks, and can be applied to skin directly or added into acne treatment products. The acne treatment cream comprises the acne treatment composition, cetearyl alcohol, ethylhexyl palmitate, polydimethylsiloxane, glyceryl stearate, PEG-100 stearate, caprylic / capric triglyceride, propylene glycol, polyacrylamide, polysorbate-60, sorbitan stearate, laurocapram, PEG-20 methl glucse sesquistearate, menthol, borneol, edta disodium, methylparaben, propyl hydroxybenzoate and water. The acne treatment cream prepared by a hypo-allergenic formula is mild and non-irritating, easy to absorb, non-greasy, safe and effective.

The invention discloses a fluorine and silicon containing water and oil repellent finishing agent which is synthesized from fluorine containing acrylic ester formed by fluorine containing alkyl with a shorter carbon chain and double-bond containing organic siloxane as basic structural units. On one hand, the advantages of a fluorine containing water and oil repellent finishing agent is retained; and on the other hand, the fluorine containing acrylic ester formed by the fluorine containing alkyl with a shorter carbon chain is selected so that perfluoro caprylic acid (PFOA) and salt thereof toxic to the environment are prevented from being generated in the degradation process of the fluorine and silicon containing water and oil repellent finishing agent. By combining the advantages of the silicon and the fluorine, the fluorine and silicon containing water and oil repellent finishing agent of the invention becomes a fabric finishing agent which has excellent performance and is environmentally friendly.

The invention provides methods for a purifying protein of interest from a mixture comprising the protein of interest and one or more contaminants, including host cell DNA and proteins, by precipitation of the contaminants with caprylic acid. Such methods are particularly useful for purifying antibodies from cell cultures. Moreover, mixtures that have been depleted of contaminants using the methods of the invention can be used directly in downstream chromatography applications (e.g., ion exchange chromatography) without any further purification. These methods lead to manufacturing processes with a minimum number of unit operations and reduce the resource requirements, and thus positively influence the cost of goods for therapeutic protein production.

The invention discloses a human cytomegalovirus immunoglobulin for intravenous injection and a preparation method thereof, and aims to improve the purity, yield and safety of the product. In the invention, the specific activity of the human cytomegalovirus immunoglobulin for intravenous injection is not less than 2.5 PEI-U / mg, the anti-CMV titer is not less than 100 PEI-U / ml, the purity is greater than 98.2%, and the protein content is 51-55 mg / ml. Caprylic acid precipitation and anion exchange chromatography are used instead of the partial ethanol precipitation step in the traditional low-temperature ethanol method, thereby keeping IgG in the supernate all the time so as to keep the IgG activity; and processes of caprylic acid virus inactivation and nano film virus removal are used, thereby effectively ensuring the safety of the product. Researches show that the preparation method disclosed by the invention improves the purity, yield and safety of the product, saves the energy and reduces the production cost.

The invention relates to a nanometer carboxylated polystyrene microsphere with a spacer arm and a preparation method thereof. A nanometer carboxylated polystyrene microsphere A is prepared by taking styrene and acrylic acid as a mixed monomer, taking water as a reaction medium, taking potassium persulfate as an initiator and taking sodium dodecyl sulfate as an emulsifier with an emulsion polymerization method. In the presence of EDC (Ethylidene Dichloride) serving as a coupling agent and Sulfo NHS, 4-aminobutyric acid, 6-amidocaproic acid or 8-aminocaprylic acid is connected to the surface of the microsphere, so that the nanometer carboxylated polystyrene microsphere with the spacer arm is prepared. The spacer arm is introduced into the surface of the nanometer microsphere, so that the steric hindrance of a coupling macromolecule is lowered, the activity and utilization ratio of the macromolecule are increased, and a nonspecific interaction between the macromolecule and the polystyrene microsphere is reduced. Meanwhile, the grain diameter of the microsphere can be adjusted by adjusting the using amount of the emulsifier, the length of the space arm and surface density, so that the nanometer microsphere has a wide application prospect in the fields of immune diagnosis, solid phase extraction and the like when serving as a carrier as well as a template.

The invention discloses a preparation method of an oil-water separation net membrane with super-hydrophilic lipophobicity. The method comprises the steps that a red copper net serves as a substrate; a micro-nano needle structure is constructed by a simple solution soaking method; surface modification is performed by a poly dimethyl diallyl ammonium chloride-sodium perfluorooctanoate / silica compound. The prepared oil-water separation net membrane with the super-hydrophilic lipophobicity is used for oil-water separation. The method has the advantages that the preparation method of the oil-water separation net membrane with the super-hydrophilic lipophobicity is simple, short in time consuming and stable in performance, and requires no large instrument; the prepared oil-water separation net membrane is easy to clean and good in recycling; water permeation instead of oil permeation can be achieved when the net membrane provided by the method is applied to the oil-water separation; the net membrane can effectively perform the oil-water separation on vegetable oil and gasoline, and has a wide application prospect in the oil-water separation.

The invention discloses a Prinsepia utilis Royle oil-containing functional skin care product and a preparation method thereof. The Prinsepia utilis Royle oil-containing functional skin care product is prepared from the following raw materials in part by weight: 1 to 2 parts of Prinsepia utilis Royle oil, 10 to 25 parts of purslane extracting solution, 5 parts of glycerol, 2 to 3 parts of 1,2-pentanediol, 5 to 7 parts of caprylic / caprictriglycerides, 2 parts of synthetic squalane, 1 to 5 parts of tocopheryl acetate, 1 to 3 parts of cetearyl alcohol, 0.1 to 0.2 part of allantoin, 0.6 to 0.9 part of coconut oil-base glucoside, 0.5 to 1 part of coconut oil alcohol, 0.5 to 2 parts of glyceryl stearate, 0.1 to 1 part of sodium hyaluronate and the balance of water. The functional skin care product has mild property and high safety without toxic or side reaction and anaphylactic reaction, can repair the destructed skin barrier, resists inflammation and skin ageing, and has a good effect and high safety of assisting in treating skin diseases related with skin barrier destruction, such as facial dermatitis (hormone dependence dermatitis, allergic dermatitis and acne), atopic dermatitis and the like.

The invention discloses an acne removing cosmetic and a preparation method thereof. The cosmetic comprises, by weight, A components, B components, C components and D components, wherein the A components include, by weight, 64%-78% of deionized water, 0.01%-0.2% of sodium hyaluronate, 2%-10% of 1,3-butanediol, 0.5%-1% of acryloyl dimethyl taurine ammonium / pyrrolidone (VP) copolymer, 0.15%-0.5% of acrylics (esters) / vinyl alcohol isodecyl acid ester cross-linked polymer sodium and 0.15%-0.5% of triethanolamine; the B components include, by weight, 0.5%-5% of honey extract, 1%-3% of LS9088, 0.5%-2.0% of phellodendron extract, 1%-3% of hydrolysis opuntia ficus-indica flowers, 0.5%-1.5% of vitex agnus-castus extract, and 2%-6% of caprylic acid propyl heptyl ester; C components include, by weight, 2%-10% of jojoba oil and 2%-5% of polydimethylsiloxane; and D components include, by weight, 0.2%-1% of preservative and 0.1%-0.3% of essence.

The invention discloses a non-additivated antisenescence cosmetic, which comprises the following components by weight: a component A composed of glycerin, propylene glycol, hydroxyethyl urea, allantoin, sodium hyaluronate and water; a component B composed of MONTANOV68, dipalmitoyl hydroxyproline, caprylic / capric triglyceride, shea butter, jojoba oil, tocopheryl acetate, polydimethylsiloxane, wheat germ oil and COSMOFERMMI XIII; a component C composed of hydroxyethyl acrylate / acryloyl dimethyltaurate crosspolymer; a component D composed of nicotinamide, panthenol, beta-glucan, mycose and water; a component E composed of acetyl Hexapeptide-8 and water; and a component F composed of SYMDIOL68T and SYMTRIOL. The antisenescence cosmetic has good antisenescence effect, simultaneously, no harmful antiseptic is added in the cosmetic.

The invention provides a composition with high-efficiency broad-spectrum antibacterial capacity. The composition is prepared by the following steps: mixing the following components in percentage by weight: 10-40 percent of hydroxyacetophenone, 5-30 percent of glycerol caprylate and 30-60 percent of C2-10 dihydric alcohol, heating to the temperature of 80-90 DEG C, completely dissolving the materials, thereby obtaining the product. According to the composition disclosed by the invention, Gram negative bacteria, gram-positive bacteria, moulds and saccharomycetes thereof in the cosmetics can be effectively inhibited and killed under the conditions of low addition amount, high safety, mildness and low irritation, and the composition has certain effects of moisturizing, assisting emulsification and resisting oxidation and is particularly suitable to serve as a preservative in the transparent system, W / O or O / W cream emulsification system and surfactant washing system. The invention also provides an application of the composition serving as a preservative in the cosmetics.

The invention belongs to the technical field of cosmetics, and in particular relates to an anti-wrinkle face cream and a preparation method thereof. The anti-wrinkle face cream comprises butanediol, ethylhexyl palmitate, caprylic / capric triglyceride, glycerol, polyglycerol-10, ethylhexyl isononanoate, polymethyl methacrylate, polydimethylsiloxane, ceteareth-21, cetostearyl alcohol, ceteareth-2, acrylic acid (ester) type / acrylamide copolymer, betaine, avocado fruit butter, a lactic acid bacillus / balausta fermentation product extract, an arctic rock chlamydomonas essence, a starfish essence, a ginseng extract, a lucid ganoderma extract, an apple extract, tocopheryl acetate and the like. The anti-wrinkle face cream provided by the invention is good in penetrability and easy to absorb, can effectively replenish water and preserve moisture, and can repair skin wrinkles and inhibit generation of the winkles, thereby delaying skin aging.

The invention discloses bifidobacterium bifidum CCFM1063 and application thereof. The bifidobacterium bifidum CCFM1063 can be rapidly planted in an intestinal tract, fasting blood-glucose and oral glucose tolerance caused by type II diabetes is significantly improved, and the area under the curve for glucose tolerance is reduced; total cholesterol in a serum increased and high-density lipoproteincholesterol reduced caused by the type II diabetes are significantly improved; the condition of insulin resistance caused by the significantly improved is significantly improved; the level of inflammation in type II diabetes liver tissue is significantly improved; pathological injuries of tissue such as pancreas and liver caused by the type II diabetes are significantly improved; the bifidobacterium bifidum CCFM1063 has higher adsorption capacity on perfluoro caprylic acid, and has the capacity of relieving toxicity of the perfluoro caprylic acid; and the constipation condition caused by the type II diabetes is significantly improved and the level of Allobaculum genus in the intestinal tract is improved, and functions of relieving anxiety and depression and colonitis are achieved.

The invention belongs to the technical field of skin care oil medicine, in particular to skin care oil medicine containing peony oil and a preparation method thereof. The skin care oil medicine provided by the invention comprises the following components in parts by weight: main ingredients: peony seed oil, caprylic / capric triglyceride, cyclopentasiloxane and 1, 2 - butyl glycol 1-12, wherein the peony oil is peony seed oil or peony essence oil or the mixture of peony seed oil and peony essence oil; auxiliary ingredients: isostearic acid, butylated hydroxytoluene, avocado oil, simmondsia chinensis seed oil, meadowfoam seed oil and macadamia ternifolia seed oil; the skin care oil medicine containing peony oil prepared by the method provided by the invention can remarkably improve of the skin epidermis cell cycle function, promote the microcirculation of the blood capillary of the dermal skin effect, inhibit lipid peroxidation, improve metabolism, delay skin aging process, is provided with anti-wrinkle, moisturizing and whiting effect, people feels smooth and comfortable after the skin care oil medicine is used on the skin, and the skin care oil medicine containing peony oil is provided with better effect to chloasma, aging skin wrinkles, skin cutin hardening peeling and skin chap.

The invention relates to a water-glycol fire-resistant hydraulic fluid. The water-glycol fire-resistant hydraulic fluid comprises the following components in percentage by weight: 37 to 42 percent of water, 12 to 15 percent of the balance of glycol or diethylene glycol and water-soluble polyether tackifier, 0.1 to 0.2 percent of sulfur-containing extreme pressure antiwear additive, 1.0 to 3.0 percent of antiwear additive formed by capric acid or the compounding of the capric acid and caprylic acid, 1.5 to 3.0 percent of at least one amine type antirust agent, 0.1 to 0.3 percent of metal passivator, 0.01 to 0.02 percent of ethylenediaminetetraacetic acid disodium, 0.005 to 0.02 percent of benzoic acid, and 0.002 to 0.005 percent of defoaming agent. The water-glycol fire-resistant hydraulic fluid has the characteristics that: the product has strong high-pressure abrasion resistance, and still has good lubricating property under high-pressure working conditions; and a Vickers 104C vane pump bench test (ASTM D7043) with test pressure of 14MPa prove that the abrasion of a vane pump is less than 100mg.

The invention relates to a group of cosmetic compositions which do not contain preservatives and have the effects of immediate firming, long-acting anti-wrinkle and moisturizing. The cosmetic compositions comprise a freshener, a moisturizer, a cream, an essence and a mask, wherein the moisturizer, the cream and the essence are emulsified products; and a surfactant is organic material coming from the natural plants. In the active ingredients, hydrolysis rhizobian gum and Arabic gum having the immediate firming effect, purified ingredients of natural polysaccharide extracted from oat grains, dipalmitoyl hydroxyproline having the long-acting anti-wrinkle effect, and xylitylglucoside, composition of anhydroxylitol and xylitol, trimethylglycine and sodium hyaluronate having the moisturizing effect are organic materials. The traditional preservatives are not contained in the product, and caprylyl glycine and caprylin substituting for the traditional preservatives come from the plants. The invention relates to an application of the organic materials and materials coming from the plants and a preparation method of the cosmetic.

The invention discloses a dutasteride soft capsule preparation, comprising a soft capsule and contents. A prescription for the contents comprises 0.5 g of a dutasteride raw material, 200 to 250 g of labrasol, 30 to 60 g of polyglycerol oleate, 50 to 100 g of medium-chain triglyceride and 0.02 to 0.05 g of 2,6-di-t-butyl p-cresol. The dutasteride soft capsule prepared in the invention is substantially improved in accumulated dissolution in 5 minutes of dissolving-out and enhanced in the dissolving-out efficiency of a main drug in a preceding time period and has good stability and good appearance quality.

The invention relates to a targeted polymer medicament carrier and a preparation method and application thereof. The targeted polymer medicament carrier has a molecular structural formula shown in the graph. The preparation method comprises the following steps of: a) feeding Pluronic and Biotin in a molar ratio of 1:1.1-1.5; dissolving the mixture in dichloromethane; adding 4-dimethylamino pyridine; dropwise adding 1,3-dicyclohexyl carbodiimide in an ice water bath; reacting at room temperature for 24 to 48 hours; extracting reactive fluid with 10 to 15 percent NaHCO3; freezing over night; filtering to remove undissolved substances; concentrating the reactive fluid; dropping the reactive fluid into cold absolute ethyl ether; filtering, and drying in vacuum; and b) dissolving a product with dry toluene, and distilling the product in the presence of argon gas; dehydrating by an azeotropy method; cooling to the room temperature; adding lactide according to 50 to 90 percent of the weight of the product in the presence of the argon gas, and adding stannous octoate according to 0.1 to 0.15 percent of the weight of the lactide; heating to the temperature of between 120 and 140 DEG C; reacting for 6 to 8 hours under stirring; immersing a reactant into the cold ethyl ether, and filtering; and dissolving polymer by using dichloromethane, immersing into methanol, and filtering and drying. The carrier can be used as carriers of medicaments for treating and diagnosing cancers.

A composition and method for promoting neutrophil survival and activation such as the treatment of neutropenia arising as an undesirable side effect of chemotherapy and radiation therapy. A composition containing medium-chain fatty acids, such as Capri acid or caprylic acid, or salts or triglycerides thereof, or mono- or diglycerides or other analogues thereof or medium-chain triglycerides (MCT) is administered to a human or animal needing treatment in an amount sufficient to reduce or eliminate neutropenia. The composition is administered in an amount effective to treat the disorder. The methods are also useful in the management of bone narrow transplantation and in the treatment of various neutropenic diseases.

The invention provides an oil and low-temperature resistant low-smoke and halogen-free flame retardant cable material for boats. The cable material is prepared from the following raw materials, by weight, 20-30 parts of polyurethane, 60-80 parts of methyl vinyl silicone rubber, 8-10 parts of acrylonitrile-butadiene rubber, 8-10 parts of magnesium hydroxide, 0.5-1.0 part of butyl stearate, 1-3 parts of barium stearate, 8-12 parts of triglycol dioctate, 4-6 parts of copper oxide, 0.5-1.0 parts of molybdenum trioxide, 30-50 parts of fumed silica, 10-13 parts of modified argil, 0.5-1.0 part of an antioxidant H, 0.1-0.3 parts of an antioxidant AW, 0.5-1.5 parts of a promoter NOBS, 0.2-0.5 parts of a vulcanizing agent DCBP, 8-10 parts of triphenyl phosphate, 12-15 parts of antimony (III) oxide and 6-8 parts of zinc borate hydrate. The cable material has the advantages of excellent flame retardation, very less smoke in combustion, no generation of toxic gases or corrosive gases, good low temperature resistance, good oil resistance, and good abrasion resistance.

The invention provides whitening essence and a preparation method thereof. The whitening essence consists of the following components of glycerine, 1,3-butanediol, sodium hyaluronate, EDTA-2Na, polyglycerol-10, sodium polyacrylate, xanthan gum, hydroxyacetophenone, dipotassium glycyrrhizinate, hydrolyzed sclerotium gum, gluconic acid sodium salt, glycereth-26, caprylhydroxamic acid, glycerol caprylate, 3-o-ethyl ascorbic acid, tranexamic acid, ceramide, phenethyl resorcinol, diglucosyl gallic acid and water. The whitening essence disclosed by the invention can refrain conversion of tyrosine tomelanin before the tyrosine is in preparation of conversion to the melanin, so that the activity of the tyrosinase is also high, generation of more melanin cannot be caused, and transfer of skin melanin can also be restrained. Besides, the whitening essence has powerful antioxidant ability, has light protection effects on skin, can control dermatitis, and is a whitening product most comprehensivein action mechanism at present, so that whitening effects can be achieved.

The invention discloses a BB cream having whitening, moisturizing and makeup-dizziness preventing functions. The BB cream consists of the following components: glycerol, cyclopentasiloxane, titanium dioxide, cetyl ethyl hexanoate, cetyl PEG / PPG-10 / 1 polydimethylsiloxane, dipropylene glycol, nicotinamide, caprylic / capric triglyceride, ethylhexyl palmitate, PEG-75 meadowfoam seed oil, hydrogenated polydecene, sodium chloride, quaternary ammonium salt-18 bentonite, white beeswax, argania spinosa kernel oil, tocopherol, CI 77492, panthenol, CI 77491, CI 77499, phenoxyethanol, allantoin, methylparaben, propyl hydroxybenzoate, sodium hyaluronate, essence, EDTA disodium, butylated hydroxytoluene, adenosine and water. By virtue of the meadowfoam seed oil, the adenosine, the argania spinosa kernel oil, the panthenol and the nicotinamide, the functions of the finished BB cream are effectively expanded, so that the BB cream is better in moisturizing performance, makeup-dizziness preventing performance and whitening performance.

The invention relates to an antioxidant network efficacy nanoemulsion externally used for skin and a preparation method thereof. The nanoemulsion consists of the following raw materials according to weight mixture ratio: 1.0-1.5 of vitamin E, 2.0-3.0 of glutathione, 2.0-2.5 of L-ascorbic acid-2-heteroside, 1.0-1.8 of seabuckthorn oil, 1.0-1.6 of coenzyme Q10, 0.5-0.6 of alpha-lipoic acid, 8.0-10 of isopropyl myristate, 20-25 of caprylic acid capric acid polyethylene glycol glyceride, 7.0-9.0 of polyglyceryl fatty acid ester, 0.5-1.0 of azone, 46-50 of triple distilled water, 0.05-0.25 of citric acid and 1.0-1.6 of sodium citrate. The functional ingredients in the formula can form an antioxidant network system with cooperative interaction, synergy and regeneration, and the penetrating function of a nanoemulsion carrier system greatly enhances the antioxidant function and effect of the functional ingredients. The preparation method can enhance the stability and effectiveness of antioxidant, is simple in preparation technology and easy for scale production, needs no extra energy, saves time, energy and raw materials and is beneficial to environment protection.

The invention discloses a lactic acid-tolerant ester-producing pichia pastoris, and belongs to the technical field of a bioengineering technology and a brewing biotechnology. The strain is preserved at the General Microbiology Center of the China Committee for Culture Collection of Microorganisms on April 24, 2017, the classification is named pichia kudriavzevii (Pichia kudriavzevii) and the preservation number is CGMCC No.14068. The pichia pastoris is high in environmental tolerance, is capable of tolerating 0-15% lactic acid, is capable of metabolizing to generate multiple ethyl ester volatile flavor substances, such as ethyl acetate, ethyl propionate, ethyl caprylate, phenethyl acetate and ethyl phenylacetate in the environment of 0-12% lactic acid, and is a brewing functional strain with excellent performance.

The invention relates to a dual hyper-immune egg yolk antibody injection for duck virus hepatitis and duck plague and a preparation method of the injection. The preparation method comprises the following steps: separating strains to prepare a vaccine, immunizing healthy ducks to obtain eggs, and performing disinfection, acidification, octanoic acid treatment, refining extraction and purification, preparation and packaging on the eggs to obtain the dual hyper-immune egg yolk antibody injection for duck virus hepatitis and duck plague. The preparation method in the application has the characteristics that: the vaccine is prepared by firstly sampling and separating the viruses in a disease prevalence area and screening the virus strains wider in coverage; then hot and cold acidification treatments are carried out to obtain a clear crude egg yolk antibody solution, and this technology is not mentioned in the existing production; and then the egg yolk antibody solution is obtained after octanoic acid treatment, low-temperature high-speed centrifuge, microfiltration and ultrafiltration. The dual egg yolk antibody injection prepared by the method not only is different from those produced by other companies in preparation types, but also has other advantageous features in the production process such as low loss, high purity and high biological activity, and no clinical side effects are brought about.

The invention relates to a method for separating and purifying triglyceride of medium- and long-chain fatty acids. Triglyceride mixture of medium- and long-chain fatty acids is obtained from rapeseed oil, soybean oil or rice bran oil and caprylic acid as raw materials by one-step enzymatic acidolysis with 1, 3 specific lipase as catalyst. Further separation and purification steps of the above triglyceride mixture include: (1) performing first-stage molecular distillation on the mixture in molecular distillation device to obtain heavy phase; and (2) performing second-stage molecular distillation on the heavy phase in molecular distillation device to give product, which has purity of triglyceride of medium- and long-chain fatty acids up to 88.31-93.11% and acid value reduced to below 2.10 mgKOH / g. The invention realizes substance separation by difference in average free path of molecular movement of different substances, and has the advantages of low distillation pressure, short heatingtime, low operating temperature, high product quality, and high separation and purification degree.

The invention discloses a gas-phase rust-preventing aerosol and a preparation process thereof. The formula of the gas-phase rust-preventing aerosol comprises the following components in parts by mass: 0.5-1.5 parts of caprylic acid tributylamine, 1-3 parts of benzotriazole tributylamine, 2.5-3.5 parts of oleic acid, 1-3 parts of laurinol, 0.2-0.8 part of amino silicon oil, 2.5-3.5 parts of methyl oleate, 0.2-0.8 part of sodium petroleum sulfonate, 0.2-0.8 part of barium petroleum sulfonate, 0.5-1.5 parts of capric acid tributylamine, 51.5-61.5 parts of 20# machine oil and 27-33 parts of liquefied petroleum gas. The process comprises the following steps: mixing and stirring the raw materials; filling the obtained liquid into a spray can; inserting a capillary valve; filling the liquefied petroleum gas; performing leak detection, and blowing-dry; and boxing, and warehousing. The invention has the characteristics of small aerosol particle diameter and high aerosol particle uniformity DR, and can effectively enhance the corrosion inhibition effect of a metal component.