221 results about "Phytosterol" patented technology

The invention belongs to the technical field of health-care food, and particularly relates to a sacha inchi oil-based gel candy with functions of reducing hypertension, hyperglycemia and hyperlipidemia and a preparation method thereof, and the sacha inchi oil-based gel candy comprises the following components: 1) a main component: 30-70% of sacha inchi oil; 2) a blood fat reducing synergistic component which is one or a combination of more of 0.5%-5% of phytosterol, 0.1%-2% of a red yeast rice extract and 0.01%-0.5% of sugarcane octacosanol; 3) a hypoglycemic synergistic component, which comprises one or a combination of more of 5%-20% of inulin / fructo-oligosaccharide, 0.5%-5% of a bitter gourd extract, 0.5%-5% of a mulberry leaf extract and 10-200 [mu] g / grain of chromium; 4) an antihypertensive synergistic component, wherein the antihypertensive synergistic component is one or a combination of more of 500-5000FU / grain of nattokinase, 0.5-5% of a celery seed extract and 1-8% of a hawthorn extract; through scientific compounding, the sacha inchi oil and various synergistic components exert a combined effect, and meanwhile, auxiliary regulation is carried out on blood sugar, blood fat and blood pressure; the main components are derived from natural plant extracts or functional grease, so that the health-care product is high in safety and suitable for daily health care.

The invention discloses a preparation method of an external skin care product, belongs to the technical field of cosmetics, and aims to solve the problems of weak effect of a single target spot, poor transdermal permeability of active ingredients and easy inactivation in the prior art. The method comprises the following steps: preparing a composition containing an A-phase licorice extract and a B-phase bearberry extract, wherein the mass ratio of the A phase to the B phase is 1: (1.5-3); the preparation method comprises the following steps: preparing a liposome suspension of which the entrapment rate is greater than or equal to 88% and the particle size is 50-200nm by using a hydrogenated soybean lecithin-phytosterol-ceramide composite membrane material through a membrane dispersion-high-pressure homogenization method; mixing with auxiliary materials to prepare essence or emulsion; and smearing according to 0.5-1mg / cm < 2 > to realize double-target synergistic blackening inhibition. According to the scheme, the melanin inhibition rate reaches 54%-62% through the double-target design in cooperation with composite membrane material liposome delivery, the active ingredient retention rate is larger than or equal to 89% after storage at 45 DEG C for 6 months, the transdermal rate is increased to 40%-48%, and the method is mild, low in irritation and remarkable in application value.

To provide a topical skin preparation that effectively promotes collagen production within the skin, exhibits excellent usability, and effectively enhances post-use stratum corneum moisture content.SOLUTION: A topical skin preparation comprises niacinamide, a heparin-like substance, dipotassium glycyrrhizinate, a collagen peptide, a yeast extract, and glycylglycine. It is preferable that the topical skin preparation further contains hydrogenated soybean phospholipids and phytosterols. It is more preferable that the topical skin preparation has a niacinamide content of 5 mass% or more. It is also preferable that the topical skin preparation further contains at least one plant extract selected from Arnica montana and Plantago major.SELECTED DRAWING: Figure 1

The invention discloses an amino acid cleansing product and a preparation method thereof. The amino acid face cleaning product is prepared from the following raw material components in percentage by mass: 10 to 30 percent of surfactant composition, 1 to 10 percent of amphoteric or nonionic surfactant, 0.05 to 0.5 percent of citric acid, 1 to 5 percent of humectant, 0.5 to 2 percent of isostearyl alcohol, 0.1 to 0.5 percent of phytosterol dimer linoleate, 0.5 to 5 percent of sodium chloride, 0.3 to 1 percent of inulin lauryl carbamate and the balance of water, the surfactant composition comprises a long-chain fatty acyl glycol acid salt. The amino acid face cleansing product keeps uniform appearance under the conditions of high temperature, low temperature and repeated freezing and thawing, has good physical and chemical stability and compatibility, has small damage to a cuticle structure under the condition of realizing sufficient cleaning, and shows good cleaning and mild effects.

The invention provides a composition for reducing blood pressure, blood fat, blood sugar and uric acid and a preparation method thereof, the composition takes nine kinds of vegetable fat such as acer truncatum seed oil, tomato seed oil and the like as core raw materials, a composite antioxidant, phytosterol and xylooligosaccharide are supplemented, multiple-effect synergy is realized through scientific proportioning, and in the preparation process, the composition is free of toxic and side effects. And by adopting a step-by-step stirring technology, a nitrogen protection technology and a gradient ultrasonic homogenization technology, the biological activity of each component is effectively maintained. A plurality of in-vitro experiments and animal models verify that the composition can significantly regulate blood pressure, blood fat, blood sugar and uric acid levels through the synergistic effect of the raw materials. The raw materials are natural, the active ingredients are completely reserved, and the efficacy is stable, so that the functional health-care product has a wide application prospect in the field of functional health-care product development.

The invention relates to the technical field of cholesterol preparation, and discloses a preparation method of plant-derived cholesterol, which comprises the following steps: 1) heating and dissolving phytosterol with n-amyl alcohol, adding stigmasterol until saturation, cooling and crystallizing, and then carrying out solid-liquid separation to obtain a stigmasterol crude product; 2) heating and dissolving the stigmasterol crude product with absolute ethyl alcohol, adding pyridine, and continuously dropwise adding acetic anhydride for reaction; after the reaction is completed, adding deionized water for mixing, extracting with n-hexane for multiple times, separating an upper-layer oil phase, and concentrating and drying the oil phase to obtain a white solid; 3, the white solid is subjected to oxidation reduction, witting reaction and hydrogenation reaction, and cholesterol is obtained.The method has the advantages that compared with the prior art that the plant source cholesterol is directly prepared from the raw material phytosterol, the process is simplified, and meanwhile the product yield can be increased.

The invention belongs to the technical field of traditional Chinese medicine preparations, and particularly relates to Chinese herbal medicine emulsifiable paste for dermatitis and a preparation method thereof. The traditional Chinese medicine composition is prepared from the following raw materials: radix sophorae flavescentis, cortex phellodendri, cortex dictamni, fructus cnidii, fructus kochiae, radix scutellariae, radix paeoniae rubra, radix salviae miltiorrhizae, herba schizonepetae, radix saposhnikoviae Systematic design is carried out aiming at complex pathogenesis of seborrheic dermatitis, medicinal materials such as radix sophorae flavescentis and cortex phellodendri are used for synergistically clearing heat and drying dampness, malassezia is inhibited, and lipid control and bacteriostasis are carried out from the source; radix scutellariae, radix salviae miltiorrhizae and the like are combined to cool and activate blood and control inflammation for a long time; the herba schizonepetae, the radix saposhnikoviae and the like are added for targeted itching relieving and secondary injury reduction; in the dosage form, a low-oil-burden matrix composed of light grease such as jojoba oil and squalane is adopted, the texture is light and thin, hair follicles are not blocked, and phytosterol is introduced to synchronously repair the skin barrier; according to the system, the use comfort and compliance are remarkably improved while permeation of active ingredients is guaranteed.

The application discloses a supramolecular lotus leaf peptide-narcotic alkaloid Pickering emulsion as well as a preparation method and application thereof. The water phase of the supramolecular lotus leaf peptide-narcotic alkaloid Pickering emulsion is a purified lotus leaf peptide aqueous solution, and the oil phase is camellia seed oil loaded with narcotic alkaloids. The camellia seed oil not only serves as a fat-soluble carrier to improve the solubility of the narcotic alkaloids, but also has nursing effects due to the unsaturated fatty acids, vitamin E and phytosterols contained therein. The supramolecular assembly technology is used to mediate the lotus leaf peptide and the narcotic alkaloids to form high-performance emulsified particles, to replace synthetic surfactants to stabilize the Pickering emulsion, and to construct a natural emulsion system with high emulsification efficiency, high stability and high performance, so that the performance and the nursing effect of the emulsion are optimized.

The application discloses a concentrated tomato product for assisting in reducing blood fat and a preparation method thereof. The concentrated tomato product is prepared from the following raw materials in parts by weight: mature red tomatoes 800-1000 parts, phytosterols 8-12 parts, composite dietary fibers 3-8 parts, Omega-3 fatty acid microcapsules 2-6 parts, antioxidants 0.5-1.2 parts, stabilizers 0.3-0.8 parts, and edible buffer agents in an appropriate amount. The concentrated tomato product is concentrated juice or powder. The soluble solid content of the concentrated juice is 35-40 Bx, and the moisture content of the powder product is 5.0%. The application combines phytosterols, composite dietary fibers, Omega-3 fatty acid microcapsules and other natural functional components, and the components play a synergistic effect through different blood fat reduction mechanisms, thereby comprehensively assisting in regulating lipid indexes such as cholesterol and triglyceride. The blood fat reduction effect is significantly better than that of single-component products and ordinary tomato products, and the health needs of people with high blood fat can be met.

The invention relates to the technical field of gypsum plaster boards, in particular to a mildewproof gypsum plaster board and a preparation method thereof.The mildewproof gypsum plaster board comprises a gypsum core material layer and paper isolation layers attached to the two sides of the gypsum core material layer, and the specific preparation method comprises the steps that the gypsum core material layer is poured on the paper isolation layer on one side; and covering the gypsum core material layer with the paper isolation layer on the other side, then reducing the temperature of the drying oven to room temperature, and drying for 40-60 minutes to obtain the mildew-proof paper-surface gypsum board. According to the invention, the mildew preventive is compounded from phytosterol, 4-acetylphenylboronic acid and paeonol, and the three components have a synergistic effect and can continuously inhibit growth and reproduction of various common moulds and bacteria, so that invasion and damage of the moulds and bacteria to the interior of the gypsum board are effectively blocked; the invention is suitable for long-term application of building interior walls, suspended ceilings, basements, kitchens and baths and other easily damped spaces.

The present invention provides a gel composition and an oil-in-water composition that have a strong barrier function.　The gel composition comprises: one or more first compounds, which are represented by polyoxyethylene phytosterols; one or more second compounds, which are represented by polyethylene glycol distearate; one or more third compounds, which are represented by polyoxyethylene alkyl ethers; and one or more fourth compounds selected from the group consisting of ascorbic acid and salts thereof, ascorbic acid monoesters, ascorbic acid diesters, tocopherols and esters thereof, glycyrrhetinic acid and esters and salts thereof, and betamethasone and esters thereof.

The invention provides a rapid detection kit and a rapid detection method for phytosterol, and belongs to the field of food detection.The rapid detection kit for phytosterol comprises a phytosterol standard substance, a standard substance diluent, a substrate solution, an enzyme mixed solution, a stop solution and an elisa plate; the standard substance diluent comprises isopropanol or dimethyl sulfoxide; the substrate solution is prepared from TMB (Tetramethylbenzidine) and a substrate buffer solution; the enzyme mixed solution is a mixed solution of a cholesterol oxidase solution and a horse radish peroxidase solution. By optimizing the composition of each working reagent in the kit, the sensitivity and accuracy of phytosterol detection are remarkably improved. Meanwhile, the rapid detection method provided by the invention is simple and convenient to operate, short in detection time and suitable for on-site rapid detection.

The invention relates to the technical field of cosmetics, in particular to a preservative-free cosmetic composition for barrier repair as well as a preparation method and application of the preservative-free cosmetic composition. The invention relates to a preservative-free cosmetic composition for barrier repair, which comprises the following components in percentage by weight: 4.0-6.0% of 1, 2-pentanediol; 0.5% to 1.0% of 1, 2-hexanediol; 0.1% to 0.5% of cerayl; 0.5%-1.0% of phytosterol; 4.0%-6.0% of stearic acid; 4.0%-7.0% of hydrogenated lecithin; 0 to 0.3 percent of caryophylline; 0-0.2% of a eucommia ulmoides bark extract; and the balance of water. The composition of 1, 2-pentanediol and 1, 2-hexanediol is adopted to replace a traditional chemical preservative, and on the premise that the preservative effect is achieved, the possibility of causing skin irritation and allergy risks is reduced; ceramide and phytosterol can participate in construction of a skin barrier and supplement and repair a lipid structure of the skin barrier; stearic acid and hydrogenated lecithin form a stable emulsification basis, so that the two long-term contradictory requirements of no chemical preservative stimulation and effective barrier repair are met, and the unification of product safety and efficacy is realized.

The invention provides a pharmaceutical composition for treating prostatitis and a preparation method thereof. The pharmaceutical composition is prepared from the following raw materials in parts by weight: 20 to 60 parts of palmatine, 20 to 60 parts of paeoniflorin, 10 to 30 parts of formononetin, 20 to 60 parts of astilbin and 10 to 40 parts of stigmasterol. In-vitro cell tests and in-vivo animal experiments prove that the pharmaceutical composition has the effect of relieving the chronic prostatitis reaction.

Since it separates into at least an emulsion layer and an aqueous layer during standing, it has excellent aesthetic properties. When used, it can be uniformly redispersed by gently shaking, so it also has excellent usability. In addition, it has good storage stability, and further provides a multi-layer cosmetic excellent in the softness of the back skin. 【Means for Solving the Problem】 The following components (A) to (G): (A) Phospholipid (B) Cholesterol and / or phytosterol (C) Phosphoric acid-based surfactant (D) Oil agent (E) Sodium polyaspartate (F) Water-swelling clay mineral (G) Water A multi-layer cosmetic containing the above components.

The invention relates to the technical field of cosmetics, and particularly discloses a lip cosmetic with a form conversion function and a preparation method thereof. The invention relates to a form conversion lip cosmetic, which is prepared from the following raw materials in parts by weight: 15 to 30 parts of functional powder A, 10 to 20 parts of functional powder B, 7.5 to 15 parts of coordination aid, 10 to 20 parts of vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer, 2.5 to 5 parts of boron nitride, 21.5 to 43 parts of colorant, 2.5 to 5 parts of emulsifier and phytosterol oleate amp, the skin care product is prepared from the following components in parts by weight: 2.5-5 parts of phytosterols, 17.5-35 parts of a humectant, 30-60 parts of a solvent, 6.5-13 parts of a skin conditioner and 20-40 parts of a film-forming agent, the functional powder A is composed of mica, perlite and silica; the functional powder B is prepared from polymethylsilsesquioxane and a polymethyl methacrylate cross-linked polymer; the coordination auxiliary agent is prepared from silica silylate and octyl polymethylsiloxane. When the form conversion lip cosmetic is applied, all the components can be uniformly mixed in the process of converting powder into cream, and then a better cream forming effect is shown.

The invention discloses a plant-based composite adhesive and a preparation method thereof, and belongs to the technical field of adhesives. The plant-based composite adhesive is prepared from peach gum essence, a composite thickener, boric acid, a composite stabilizer, absolute ethyl alcohol, deionized water and tea polyphenol. By optimizing a peach gum essence preparation process, adopting a composite thickening system of konjac glucomannan and xanthan gum and a composite stabilizing system of phytosterol and trehalose, and optimizing process parameters, the viscosity and bonding strength of the adhesive are effectively improved, the stability of the adhesive is enhanced, layering of the adhesive in the storage and use process is prevented, and the adhesive has the advantages that the adhesive is not prone to cracking, and the service life of the adhesive is prolonged. And multi-scene green requirements such as gold printing are met.

This invention discloses a soothing and repairing composition and its application, comprising the following raw materials: phytosterols, chamomile extract, hydrolyzed sodium hyaluronate, tocopherol, ceramide NP, triethanolamine, lactobacillus, macadamia seed oil, magnolia alcohol, matricaria flower extract, maltodextrin, lecithin, phosphatidylcholine, ascorbyl palmitate, inulin root juice, arginine / lysine polypeptide, squalane, jojoba seed oil, scutellaria baicalensis root extract, polygonum cuspidatum root extract, fructose, glycerin, p-hydroxyacetophenone, butylene glycol, acrylate / C10-30 alkanol acrylate crosspolymer, α-glucan oligosaccharide, 1,2-hexanediol, and water as the balance. Compared with the prior art, the soothing and repairing composition prepared by this invention has the effects of rapidly rebuilding the skin barrier, regulating skin immune function, improving skin microecology, synergistic effect, and rapid skin repair.

The invention provides an essential oil delivery system based on bionic lipidosome and a preparation method thereof, and belongs to the technical field of cosmetics and pharmaceutical preparations, a membrane material of the bionic lipidosome delivery system contains a component similar to skin cuticle lipid, and an inclusion compound formed by cyclodextrin and volatile active ingredients is encapsulated in the membrane material; the volatile active component is selected from plant essential oil or active components thereof with anti-aging, analgesic, anti-inflammatory or anti-allergy effects; the membrane material is prepared from hydrogenated soybean lecithin, cholesterol, ceramide, phytosphingosine, phytosterol and an antioxidant; according to the bionic liposome delivery system provided by the invention, the volatility of active ingredients can be remarkably reduced, the stability of the active ingredients can be improved, and slow release and synergistic infiltration promotion effects can be realized, so that the effects of the bionic liposome delivery system in anti-aging, pain relieving and other applications can be greatly enhanced.

The application belongs to the technical field of producing fat oil from raw materials, and particularly relates to a rapeseed oil extraction method with high retention of active ingredients. The rapeseed oil extraction method with high retention of active ingredients comprises the following steps: S1, performing enzyme pretreatment on rapeseed to obtain enzyme pretreated rapeseed; S2, performing subcritical extraction treatment on the enzyme pretreated rapeseed to obtain crude rapeseed oil; and S3, performing degumming treatment on the crude rapeseed oil to obtain rapeseed oil with high retention of active ingredients. Through improvement of the preparation process, the rapeseed oil with high retention of active ingredients is realized, and the content of oleic acid and phytosterol in the rapeseed oil is effectively improved.

The invention belongs to the technical field of edible plant blend oil, and discloses plant compound oil for protecting heart and blood vessels, reducing blood fat, resisting aging and fading spots and a preparation method thereof. The plant compound oil is prepared by compounding camellia oil, fermented soya beans, walnut oil, linseed oil, perilla oil, peach kernel oil, bitter apricot kernel oil, safflower seed oil and semen brassicae oil, and is prepared by the following steps: cleaning raw materials, alternately sterilizing and killing by ultraviolet rays and ozone, squeezing at low temperature, soaking the fermented soya beans at constant temperature, and stirring and mixing in vacuum. The product is rich in active ingredients such as unsaturated fatty acid, polyphenol, flavone, vitamin E, squalene and phytosterol, is high in cooking stability, has a remarkable synergistic effect of all the components, can effectively reduce triglyceride, regulate blood fat and protect heart and blood vessels, and has the effects of resisting oxidation, resisting ageing and fading spots. The process is mild, natural, safe and suitable for industrial production, and the obtained compound oil can be used as functional cooking oil and can also be used for preparing related functional food or health care products.

The invention discloses a whitening and spot-fading composition based on a fermented jasmine flower extract. The whitening and spot-fading composition comprises the following components in parts by mass: 0.1-1 part of a nano emulsifier, 0.5-8 parts of the fermented jasmine flower extract, 0.5-1.5 parts of arbutin and 1-3 parts of tranexamic acid. The nano emulsifier is a mixture of hydrogenated lecithin and phytosterol, the mass fraction ratio of arbutin to tranexamic acid is 0.5: 1, and the fermented jasmine flower extract specifically comprises a jasmine flower extract, a lactobacillus fermentation extract, water, 1, 2-hexanediol and 1, 2-pentanediol. The average particle size of the emulsion is about 256.56 nm through a nano emulsification technology, and compared with a conventional system, the transdermal absorption efficiency of active ingredients such as the jasmine flower extract, arbutin and tranexamic acid can be greatly improved, so that the active ingredients can reach action targets more easily; the problem of non-uniform dispersion caused by component solubility difference can be solved, the active component analysis risk is remarkably reduced, the system stability is improved, and the whitening and spot fading effects are enhanced.

The invention relates to the technical field of edible oil and fat processing, and discloses a sunflower seed oil double-zero double-low deodorization and by-product efficient recovery method, which comprises the following steps: carrying out degumming pretreatment on sunflower seed crude oil, pumping the sunflower seed crude oil into an extraction tower, and carrying out supercritical extraction on the sunflower seed crude oil and high-pressure carbon dioxide fluid. The extraction phase sequentially passes through a multi-stage analysis system; a refined sunflower seed oil finished product is separated by depressurizing and cooling in a first-stage analysis kettle; converting into a subcritical state in a second-stage desorption kettle, and selectively intercepting and separating out the phytosterol by utilizing beta-CD-PU porous cross-linked microspheres filled in the second-stage desorption kettle; depressurizing and separating out vitamin E in a third-stage desorption kettle; and finally entering a flash tank to gasify the carbon dioxide, and separating free fatty acid and small molecule leftovers with peculiar smell. According to the invention, nutritional ingredient loss and trans-fatty acid generation caused by high-temperature deodorization are avoided, and grease deodorization and step-by-step accurate separation and independent recovery of multiple byproducts are realized.

The invention relates to the technical field of cosmetics, and discloses an oil wax composition of a high-water-holding complex stably-loaded water active matter and a preparation method, the oil wax composition of the high-water-holding complex stably-loaded water active matter comprises a high-water-holding complex, an oil wax phase and a water-based active matter phase, the high water holding complex comprises polyglycerol-2 dipolyhydroxystearate, polyglycerol-10 eicosanoic acid ester / tetradecanedioic acid ester, polyglycerol-3 rice bran acid ester, 1%-6% of polyglycerol-6 polyricinoleate, bis-behenyl alcohol / isostearyl alcohol / phytosterol dimer linoleate, dipentaerythritol hexahydroxy stearate / hexastearate, polyglyceryl tristearate, polyglyceryl tristearate, polyglyceryl tristearate, polyglyceryl tristearate, polyglyceryl tristearate, polyglyceryl tristearate, polyglyceryl tristearate, polyglyceryl tristearate, polyglyceryl tristearate, polyglyceryl tristearate, polyglyceryl tristearate, polyglyceryl tristearate, polyglyceryl tristearate, polyglyceryl tristearate and polyglyceryl tristearate. According to the lip care composition, a water-based active matter phase can be stably borne in a high-load mode, water-based activity is effectively conveyed to the lip surface in the using process, and therefore the moisturizing, repairing and functional care effects of the lip are remarkably improved.

The invention relates to a recombinant strain for producing dehydroepiandrosterone and a construction method and application thereof, and belongs to the technical field of biology. According to the genetically engineered bacterium obtained by reducing or eliminating the enzymatic activity of NAD (P) dependent oxidase in an original strain, the DHEA can be directly produced through one-step biological fermentation by taking phytosterol or cholesterol as a substrate. In the genetically engineered bacterium, the activity of sterol-like-isomerase is further reduced or eliminated, and the activities of oxidoreductase, dehydrogenase and ACP-reductase are further reduced or eliminated in a superposed manner, so that the yield of DHEA can be accumulated step by step, the DHEA finally becomes a main product, meanwhile, the proportion of by-products 4-AD and androstenediol is reduced, and the yield of DHEA is increased. The purity is improved while the yield of the DHEA is improved, and subsequent treatment and application are facilitated.

The invention relates to a seed treatment suspending agent, a synergistic composition for the seed treatment suspending agent and a preparation method of the synergistic composition, and the synergistic composition comprises the following components based on 100% of the total mass of the synergistic composition: 1-3% of phytosterol; 20%-40% of glycerol; 10%-25% of an auxiliary agent; 15%-25% of a surfactant; and the balance of water. The auxiliaries comprise modified vegetable oil and an antioxidant, and the mass ratio of the modified vegetable oil to the antioxidant is (3-15): 1. According to the synergistic composition disclosed by the invention, the phytosterol, the glycerol and the auxiliary agent are cooperated to respectively play roles in three aspects of physiological initiation, cell protection and environment maintenance, so that the germination rate and the germination potential of seeds can be improved, rapid and tidy germination can be promoted, and the stress resistance of crops can also be enhanced. Moreover, the synergistic composition has good compatibility with a seed treatment suspending agent system, can effectively cooperate with the seed treatment suspending agent system at a low dosage, improves the germination rate and germination potential of the seeds, and ensures the growth safety in the seedling stage.

This invention provides a liquid crystal biomimetic water-locking and oxygen-permeable skincare composition, its preparation method, and its application, belonging to the field of cosmetic technology. It comprises the following components by weight percentage: 20-40% glycerin, 5-10% hydrogenated lecithin, 5-10% phytosterols, 0.1-0.5% sodium stearoyl glutamate, 0.01-0.05% sodium methylstearoyl taurate, 0.1-1% ceramide NP, 1-10% caprylic / capric triglyceride, 1-10% squalane, 0.1-1% tocopheryl acetate, 0.01-0.3% sodium DNA, 0.001-0.1% fibronectin, 0.001-0.1% soluble collagen, and the balance being water. The liquid crystal biomimetic water-locking and oxygen-permeable skincare composition provided by this invention can better form a breathable protective film on the skin surface, reduce skin moisture loss, and help repair damaged skin barriers, thereby achieving the effect of water-locking and oxygen-permeable skincare.

The preparation method comprises the following steps: dissolving soybean phospholipid and phytosterol butyrate in an organic solvent, carrying out rotary evaporation to obtain a composite membrane, dissolving nisin in a phosphate buffered solution to obtain a water phase, adding the water phase into the composite membrane, carrying out hydration treatment, and carrying out vacuum drying to obtain the nano-liposome loaded nisin antibacterial agent. And finally, carrying out ultrasonic treatment to obtain the target nano-liposome. The preparation method comprises the following steps: firstly, performing rotary evaporation on phytosterol butyrate and soybean phospholipid to obtain a composite film, so that amphiphilic phospholipid molecules and hydrophobic PBE molecules are jointly assembled and directionally arranged through hydrophobic interaction, and further, a uniform mixed lipid film is formed; the nisin is embedded in a hydrophilic region in a bimolecular layer of the soybean phospholipid in the hydration process. The composite film contains PBE, so that not only is the thermal stability of the nisin nano-liposome improved, but also the pH stability and the ion stability are improved.

The invention belongs to the technical field of skin care products, and particularly relates to a composition and application thereof. The invention relates to a composition, in particular to a composition with repairing and anti-wrinkle effects and application thereof. The invention provides a composition. The composition is prepared from garcinia indica seed grease, phytosterol macadamia nut oleate, a castor oil / IPDI (isophorone diisocyanate) copolymer and a saussurea involucrata extract. When the composition is used, through the synergistic effect of all the components, hydrogen bonds are connected in multiple directions, crystals are prevented from simply growing into large sheet shapes or needle shapes, and tiny, fiber-shaped or needle-shaped microcrystals tend to be formed. The microcrystals are mutually crosslinked and overlapped to construct a continuous layered network structure penetrating through the whole matrix, and excellent repairing and anti-wrinkle effects can be formed. And the components are natural, safe and mild, do not irritate the lip skin, and are suitable for long-term use.

The invention discloses application of a nutritional composition containing alpha-hydroxyisocaproic acid in weight management and blood fat improvement, and belongs to the fields of biological medicine manufacturing, biological medicine application and functional food development. The nutritional composition comprises alpha-hydroxyisocaproic acid and at least one second functional nutritional component, and the second functional nutritional component is preferably selected from one or more of the following components: 1) one or more of tea polyphenol and capsaicin; 2) one or more of beta-glucan, inulin and resistant dextrin; 3) one or more of medium chain triglyceride and sn-1, 3 diglyceride; under the condition of the same intake cycle and dosage, the nutritional composition can significantly improve the weight management effect and reduce related indexes of blood fat through a multi-way synergistic effect, and is combined with GLP-1 drugs or sequentially applied to weight management so as to reduce the risk of weight rise after drug withdrawal.