16results about How to "Improve emulsion stability" patented technology

The invention belongs to the technical field of algal polysaccharide extraction, and discloses a modification extraction method of algal asparagus polysaccharide and a method for preparing a lutein coating by using the algal asparagus polysaccharide. The modified extraction method comprises the following steps: extracting gracilaria lemaneiformis powder with a weak base solution, enabling lactide and polysaccharide to be subjected to grafting reaction through a redox initiation system under the assistance of ultrasonic waves, and then separating out a first polysaccharide component with high emulsibility and a second polysaccharide component with high gel property through graded alcohol precipitation. The two obtained functional components are used for coating xanthophyll, specifically, the first polysaccharide component emulsifies a xanthophyll oil phase to form a pre-emulsion, the second polysaccharide component is compounded with gelatin, a composite coacervate is formed on an oil drop interface by adjusting the pH value, and finally drying and curing are conducted. According to the method, two modified polysaccharides with definite functions can be synchronously obtained, the prepared xanthophyll coating is high in encapsulation efficiency, good in storage and processing stability and excellent in water dispersibility, and the problems that xanthophyll is unstable and difficult to apply are effectively solved.

The present application relates to a kind of high stability water-in-oil PDRN emulsion and its preparation method, belong to the field of biotechnology;The preparation method includes the following steps: (1) PDRN enzymolysis: PDRN is added in DNaseI, supplement metal ion activates enzyme, when fragment enrichment shows <800bp, terminate enzymolysis reaction, obtain crude enzymolysis solution;(2) moderate molecular weight screening: pressurized ultrafiltration crude enzymolysis solution with ultrafiltration membrane, and screen out the target fragment of the permeate of molecular weight in 120-500bp;(3) water phase system optimization: 1,3-propanediol and ubiquinol are added in the permeate;(4) semi-continuous feeding gradient emulsification.The present application is by precise control PDRN molecular weight to take into account stability and solubility, optimize water phase component to realize system viscosity and transparency double standard, cooperate gradient emulsification to guarantee water-in-oil system stability, significantly improve product comprehensive quality and application value, with outstanding technical advantages.

The invention belongs to the technical field of microorganisms, and particularly discloses a strain of lactobacillus plantarum and application thereof, and the preservation number of the lactobacillus plantarum SN21 is CCTCC (China Center For Type Culture Collection) NO: M20252076. The lactobacillus plantarum SN21 provided by the invention is applied to fermentation of the peanut protein, the antigenicity of the peanut protein can be effectively reduced by optimizing fermentation conditions, and the oxidation resistance of a product is improved; meanwhile, the lactobacillus plantarum SN21 provided by the invention is used for fermenting peanut protein, and the solubility and the emulsifying property of the lactobacillus plantarum SN21 are improved. The strain has a good application prospect in development and utilization of fermented foods, and particularly has a relatively good application value in development of low-sensitivity peanut products and improvement of functional characteristics.

This invention relates to a fat mimic based on micro / nano-sized starch, its preparation method, and its application. The preparation method of the fat mimic includes: S1: providing a potato starch solution with a concentration of 15-20%; S2: adding 35-50 u / g of α-amylase (with an enzyme activity of 10000 u / g) based on the mass of potato starch, and enzymatically hydrolyzing at 85-90℃ for 5-15 min to obtain a potato starch enzymatically hydrolyzed fat mimic with a DE value of 2-3; S3: adjusting the potato starch enzymatically hydrolyzed fat mimic to a concentration of 1-5%, and using dynamic ultra-high pressure microfluidic technology at a pressure of 180-200 MPa for 6-12 cycles of micro-nano-sized potato starch fat mimic to obtain a particle size between 500-700 nm. Compared with enzymatically hydrolyzed fat mimics, the micro-nano-scale potato starch fat mimics prepared in this invention have significantly improved oil retention, emulsification, emulsification stability, sedimentation, and apparent viscosity. This is beneficial for increasing their fat substitution rate in food and developing low-fat or fat-free foods with a more delicate texture and better sensory experience and textural expectations for consumers.

The invention belongs to the technical field of organic synthesis, and discloses a preparation method of alkane diol random polyether. The preparation method comprises the following steps: adding an initiator alkane diol, a main catalyst and a cocatalyst into a reaction kettle, adding ethylene oxide and epoxypropane, controlling the feeding time to be 4-8 hours, controlling the feeding rate of the ethylene oxide to be linearly increased to 40-65 g / 10 min from 10-30 g / 10 min, and controlling the feeding rate of the epoxypropane to be linearly reduced to 10-30 g / 10 min from 40-65 g / 10 min. According to the preparation method provided by the invention, ethylene oxide and propylene oxide are taken as comonomers, and the random copolyether with uniformly distributed molecular chain sequences is prepared in a compound base catalysis system through a special feeding mode. The random copolyether is high in random degree, low in surface tension, high in emulsion stability and narrow in molecular weight distribution; and the preparation method can follow the post-treatment method of the traditional alkali catalysis process, and has the advantages of simple process and low cost.

This invention belongs to the field of microbial technology, specifically relating to a method for preparing and applying a fused Weissella extracellular polysaccharide. The extracellular polysaccharide of this invention is composed of glucose monosaccharide, and the glucose linkages include terminal glucose t-Glc(p), 1→4 linked glucose, 1→4,6 linked glucose, 1→3,6 linked glucose, and 1→2,6 linked glucose, with a relative molar ratio of (8~8.5):(1~1.2):(81~82):(7~7.5):(1~1.2):(0.5~1). It possesses excellent water-holding capacity, oil-holding capacity, emulsifying properties, and emulsion stability, and can be used as a highly efficient moisturizer, emulsifier, emulsion stabilizer, cosmetic additive, pharmaceutical additive, and food additive, showing broad application prospects in the food, cosmetic, and pharmaceutical fields.

The application discloses a peony seed protein beverage and a preparation method thereof, and belongs to the technical field of plant protein beverage processing. The application first uses seed kernels of a peony variety "Fengdan" (scientific name: Paeonia ostii) as raw materials, soaks the Fengdan seeds in boiling water, then adds beta-cyclodextrin, performs beating, filtration, food additive blending, homogenization, and pasteurization to prepare a peony seed protein beverage. Through the synergistic effect of the above process, the inherent bitterness of the Fengdan seed raw materials in the beverage is effectively eliminated, the stability of the beverage is improved, and the prepared beverage has the advantages of high protein content, low fat content, rich dietary fiber, delicate taste, and at least 365 days of storage under the condition of 4 DEG C, thereby providing an effective way for high-value utilization of peony seed resources.

The invention discloses an emulsion type catalyst for hydrothermal cracking of thickened oil as well as a preparation method and application of the emulsion type catalyst, and belongs to the technical field of oil exploitation and catalysis. The catalyst is prepared by the following method: adding a molybdenum-based catalyst, an emulsifier and emulsion oil into water, and carrying out ultrasonic emulsification to obtain the thick oil hydrothermal cracking emulsion type catalyst. The emulsion type catalyst prepared by the invention is a nano molybdenum catalytic system with high stability, low oil phase proportion, wide pH application range and good salt tolerance, has good dispersity and transmission capacity in an oil-water reaction system, has relatively high catalytic cracking activity on underground thickened oil, and can be used for preparing the underground thickened oil. Therefore, the method has good applicability and good application value in the technical field of oil exploitation.

The water-in-oil emulsion cosmetic of the present invention contains (A) an amphiphilic substance and (B) a hydrophobically treated particulate metal oxide formed by hydrophobicating a monoalkyl phosphate ester. The (A) amphiphilic substance contains one or more epoxide derivatives selected from the group consisting of epoxide derivatives represented by the following general formulas (1) and (2). (In the general formula (1), AO represents an oxoalkylene group with 3 to 4 carbon atoms, EO represents an oxovinyl group, R...) 1 and R 2 Each independently represents a hydrocarbon group or hydrogen atom with 1 to 4 carbon atoms, where m and n are integers satisfying 1 ≤ m ≤ 70 and 1 ≤ n ≤ 70. (In the general formula (2), R 3 R 4 and R 5 Each of the elements is independently a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, A is an alkylene group having 2 to 4 carbon atoms, and p and q are independently integers from 1 to 50. The polymer represented by the general formula (2) has a number-average molecular weight of 10,000 or less and an IOB value of 0.4 to 1.8.

The invention provides a cationic polyacrylamide inverse emulsion and a fabric care composition. Raw materials of the emulsion comprise a nonionic monomer, a cationic monomer and a monomer containing a long alkyl chain, and the long alkyl chain monomer has a specific structure. The emulsion not only has efficient thickening performance, but also has no obvious layering after being placed at room temperature for one month, and the prepared fabric softener has no obvious change in viscosity and no gel phenomenon after being placed at-5 DEG C for 3 days and recovered to room temperature.

The utility model relates to a microfluidic emulsification device. The microfluidic emulsification device comprises an emulsification assembly and a collector, the emulsification assembly comprises a first feed inlet, a second feed inlet, a first main flow channel, a second main flow channel and at least one group of emulsification units, the first feed inlet is communicated with the first main flow channel, each emulsification unit comprises a first branch flow channel and a second branch flow channel, and the first branch flow channel is communicated with the second branch flow channel. One end of the first branch flow channel is communicated with the first main flow channel, the other end of the first branch flow channel is communicated with the collector, one end of the second branch flow channel is communicated with the second main flow channel, and the first branch flow channel is communicated with the second branch flow channel through at least one communication flow channel. The device disclosed by the utility model is easy to operate, can realize more efficient and controllable mixed emulsification on a dispersed phase and a continuous phase, can improve the emulsification efficiency and stability, can realize continuous production of emulsion, and is suitable for industrial-grade large-scale production of emulsion products.

This utility model relates to the field of food processing technology and discloses a magnetic field treatment device for improving protein emulsification properties and reducing protein allergenicity. The device includes: a sample bottle, a circulating water pump, and a magnetic field generating mechanism connected in a sequential cycle. The sample bottle has an inlet pipe and an outlet pipe. The circulating water pump is connected to the sample bottle through the inlet pipe, and the magnetic field generating mechanism is connected to the sample bottle through the outlet pipe. This utility model, by setting up a sample bottle, a circulating water pump, and a magnetic field generating mechanism connected in a sequential cycle, simultaneously achieves the circulating transport of protein liquid and uniformly treats the protein liquid with a magnetic field to generate Lorentz force. It is simple and practical, and can effectively improve protein emulsification properties and reduce protein allergenicity.

This invention discloses a sugar-based supramolecular emulsifier, its preparation method, and its applications, belonging to the field of supramolecular emulsifier preparation technology. The invention involves reacting sugars, fatty acids, sodium fatty acids, alcohols, and solvents in a mass ratio of 0.8-45:5-15:0-5:35-94.2:120 at 40-95℃ for 5-13 hours to obtain a suspension. The suspension is then dried to obtain a sugar-based supramolecular emulsifier powder. The sugar-based supramolecular emulsifier powder prepared by this invention exhibits excellent emulsification stability and environmental friendliness. Furthermore, the synthesis process is simple and cost-controllable, making it suitable for use in cosmetics, food, pharmaceuticals, and other fields.

The invention relates to the technical field of ice cream processing, and discloses a matcha low-fat high-fiber ice cream and a preparation method thereof.The ice cream is composed of 3.30% of skim milk powder, 7.50% of white granulated sugar, 2.00% of maltitol, 7.00% of resistant dextrin, 3.00% of erythritol, 0.60% of a compound emulsion stabilizer, 0.08% of salt, 1.09% of matcha powder, 9.00% of coconut pulp and the balance skim milk; the compound emulsion stabilizer is composed of phospholipid, locust bean gum and carrageenan in a ratio of 1: 1: 1, the weight ratio of skimmed milk to coconut pulp is 7.5: 1, and the weight ratio of resistant dextrin to erythritol is 7: 3. The preparation method comprises the following steps: dry material pretreatment, base material mixing, secondary homogenization, sterilization, matcha powder addition at low temperature in an aging stage, nitrogen protection, congelation forming and hardening. Through the synergistic effect of the compound emulsion stabilizer and the raw materials in a specific proportion, low-fat and high-fiber effects are achieved, fine and smooth taste and pure flavor are obtained at the same time, the process is stable, and the method is suitable for industrial production.

This invention discloses a phosphate ester-based pesticide emulsifier suitable for aerial spraying and its preparation method, belonging to the field of pesticide adjuvant technology. The emulsifier is formulated from isomeric alcohol polyoxyethylene ether phosphate, nonionic surfactant, co-emulsifier, and anti-drift modifier in a specific ratio, with isomeric alcohol polyoxyethylene ether phosphate as the core active component. Through precise control of the component ratios and preparation process, the emulsifier possesses excellent emulsifying and dispersing properties, low foaming properties, anti-drift properties, and low-temperature stability. It is suitable for the high dilution ratios, rapid atomization, and complex operating environments of drone aerial spraying, effectively solving the technical pain points of existing aerial spraying emulsifiers such as easy drift, poor emulsification stability, insufficient efficacy, and easy precipitation at low temperatures. The preparation process of this invention is simple, environmentally friendly, and has low production costs. It can be widely applied to aerial spraying operations of various pesticide emulsifiable concentrates, water-in-oil emulsions, and microemulsions, significantly improving pesticide utilization, reducing pesticide waste and environmental pollution, and has extremely high practical value and promising prospects for promotion.

The invention discloses shower gel and a preparation method thereof, and relates to the field of daily chemical products. The shower gel is prepared from the following raw materials in parts by weight: 65 to 70 parts of water, 0.05 to 0.3 part of disodium ethylene diamine tetraacetate, 20 to 30 parts of a surfactant, 7 to 12 parts of a viscosity regulator, 0.3 to 0.7 part of an acidic pH regulator, 0.3 to 0.5 part of phenoxyethanol, 0.4 to 0.8 part of a bacteriostatic agent and 0.2 to 0.4 part of essence. The viscosity modifier is prepared from cocamide MEA, PEG-120 methyl glucose dioleate, sodium carboxymethyl starch, an acrylic acid-acrylate copolymer and sodium chloride. The viscosity modifier prepared from cocamide MEA, PEG-120 methyl glucose dioleate, sodium carboxymethyl starch, acrylic acid-acrylate copolymer and sodium chloride is compounded with the surfactant, so that the formed shower gel has relatively high temperature stability and still keeps proper viscosity in high-temperature and low-temperature environments.