3376 results about "Preservative" patented technology

The invention relates to the field of microorganisms, in particular to a plant lactobacillus and application thereof in bacteriostasis. Specifically, the preservation number of the plant lactobacillus LP06 is CGMCC (China General Microbiological Culture Collection Center) No. 28412. The plant lactobacillus LP06 provided by the invention can be used for inhibiting the growth of debaryomyces hansenii, candida tropicalis and penicillium rochei, and also has an inhibiting effect on super bacteria acinetobacter baumannii, pseudomonas aeruginosa, klebsiella, escherichia coli, staphylococcus aureus and listeria monocytogenes. The plant lactobacillus LP06 provided by the invention has broad-spectrum bacteriostatic ability, and bacteriostatic powder prepared from the bacterium can be used as a biological preservative for corrosion prevention of dairy products such as yoghourt, cheese and the like and other foods.

The invention relates to the technical field of daily chemicals, in particular to a hair repairing agent and application thereof. The shampoo is prepared from the following raw materials: a suspending agent, a surfactant, a hair conditioner, a solvent, a cleaning agent, a functional repairing agent, a preservative, an aromatic, a thickening agent and a humectant. Fibroin is degummed through bifidus yeast by adopting a biological fermentation technology to obtain a protein active matter with lower molecular weight, a fibroin derivative is rich in a large amount of amino acid, glycine, alanine and serine account for about 85% of the total composition, the fibroin derivative has very strong moisturizing performance, the extract can rapidly permeate into hair cores, and the effect of moisturizing the hair cores is achieved. The water bonding capability of hair is enhanced, naturally existing free amino acids and lost polypeptides are supplemented, the fiber structure of the hair is recombined, the strength, toughness and glossiness of the hair are enhanced, and branching and embrittlement are prevented.

The present application provides a tableware detergent tablet, and methods for preparing and using the same, the tableware detergent tablet is made of the following components in parts by mass: water-soluble polymer 15-35 parts, anionic surfactant 10-25 parts, nonionic surfactant 5-20 parts, forming additive 0.3-5 parts, polyol detergency promoter 1-10 parts, water softener 1-10 parts, anti-stain dispersant 1-10 parts, enzyme formulation 0.1-5 parts, polymer cleaning co-agent 0.3-3 parts, essence 0-1 part, and preservative 0-1 part.

A method of producing a cannabinoid nanoparticle carrier composition for administration to a human and thereafter producing a consumable food product including the cannabinoid nanoparticle emulsification. The cannabinoid nanoparticle carrier composition is combined with a particulate food product, herb or spice, sugar, salt, or particulate preservative, mixed into a slurry or suspension, dried, and then ground to a size suitable for human consumption.

The invention belongs to the technical field of high polymer materials, and discloses a modified bamboo fiber full-biodegradable material, with PBAT, PLA, modified bamboo powder, a plasticizer and a composite antibacterial agent as raw materials, the preparation method comprises the following steps: S1, carrying out alkali treatment modification and silane coupling agent modification on bamboo powder; s2, preparing a composite antibacterial agent by adopting a solid-phase reaction method; s3, all the components with the set amount are fully stirred; s4, carrying out high-temperature melt extrusion on the mixed component raw materials, cooling and pelletizing; s5, the particles are subjected to high-temperature tape casting, and sheets are obtained; and S6, the sheet is formed through plastic uptake. According to the modified bamboo fiber full-biodegradable material disclosed by the invention, due to the addition of the modified bamboo powder, not only can the mechanical properties of food packages be effectively improved, but also the production cost of degradable food packages can be reduced, and the degradation rate of the food packages can be increased; the compound antibacterial agent is added, so that the food package is endowed with excellent antibacterial performance, and the metabolic process of the litchis is delayed, so that the weight loss rate and the rotting rate of the litchis during storage are remarkably reduced, the shelf life of the litchis can be effectively prolonged, and meanwhile, the preservative can be applied to fresh-keeping storage of other fruits and has wide applicability.

The invention relates to the technical field of flocculants, in particular to a composite flocculant containing a cationic etherifying agent and a preparation method of the composite flocculant, and the composite flocculant is prepared from the following raw materials in parts by weight: 15-20 parts of carboxymethyl guar gum, 12-15 parts of cationic konjac glucomannan, 1.2-1.5 parts of the cationic etherifying agent, 1.8-2.2 parts of a magnetic polysilicate metal salt flocculant and 0.2-0.3 part of a preservative. According to the present invention, by compounding the flocculant, the flocculated floc has magnetism and can be recovered and repeatedly utilized, and the photoresponse azobenzene structure is grafted in the cationic konjac glucomannan, such that the controllable pollutant aggregation and separation can be achieved, and the good flocculation performance can be maintained after the composite flocculant is repeatedly recovered and repeatedly utilized.

The invention discloses a water quality sampling device for environment detection, which comprises a connecting plate, a connecting block is fixedly connected to the side wall of the connecting plate, a connecting ring is fixedly connected to one side of the connecting block, a driving blade is rotatably connected to the inner wall of the connecting ring, and an electric rotating rod is fixedly connected to one side of the driving blade. The invention relates to the technical field of water quality sampling devices. Through cooperation of a detector, a sliding circular plate, a fixed cone, a sealing plug, a preservative leather bag, a second electric push rod, a telescopic plate, a push plate, a limiting groove, a sealing bin, an extrusion plate, a reset spring, a limiting pipe and an electric telescopic pipe, a storage test tube injected with sampling water can be automatically sealed, and deterioration caused by excessive contact between a water source and air is avoided; meanwhile, a preservative can be automatically added into the sampling water, the preservation time of the sampling water is prolonged, and after a sealing plug in a limiting pipe is used up, a detector detects and reminds an operator that the sampling water is input into a storage test tube in equipment.

The invention provides an efficient environment-friendly silicon-based foam extinguishing agent synergistically compounded by a multi-silicon surfactant and a preparation method of the efficient environment-friendly silicon-based foam extinguishing agent. The cleaning agent is prepared from raw materials in percentage by mass as follows: 5%-35% of an ionic silicon surfactant, 5%-35% of a nonionic silicon surfactant, 0.1%-3% of a polysaccharide foam stabilizer, 1%-10% of a cosolvent, 0.1%-10% of a preservative, 1%-10% of an antifreeze agent, 0.1%-5% of a regulator and the balance of deionized water. According to the invention, the ionic silicon surfactant and the nonionic silicon surfactant are compounded for use, hydrophobic and oleophobic tetrasiloxane groups and trisiloxane groups are used as spreading agents of an oil-water interface, and the formula of the foam extinguishing agent only contains the silicon surfactant; the liquid fuel fire extinguishing agent does not contain a forbidden fluorocarbon surfactant and a hydrocarbon surfactant with an oleophylic end, so that the environmental hazard of the fluorocarbon surfactant is completely eradicated, the oleophylic property of the foam fire extinguishing agent is eliminated, and the liquid fuel fire can be extinguished. The invention has positive significance on environment protection, human health protection and sustainable development of foam fire extinguishing technology.

The invention discloses collagen polypeptide firming and anti-wrinkle freeze-dried powder, and relates to the technical field of cosmetics. The invention relates to a biological preservative which is prepared from water, butanediol, a bacillus / soybean fermentation product extract, soluble collagen, acetyl hexapeptide-8, panthenol, 1, 2, 4-trimethyl-1, 3-pentanediol and a proper amount of water. The cosmetic is prepared from 1, 2-hexanediol, tetrahydromethylpyrimidine carboxylic acid, hydroxypropyl tetrahydropyrantriol, tremella polysaccharide, saccharide isomeride, a bifidus yeast fermentation product lysate, sodium hyaluronate, DNA sodium, a radix gentianae extract, mannitol, palmitoyl tripeptide-1, palmitoyl tetrapeptide-7, oligopeptide-1, decapeptide-4, oligopeptide-3, hydrolyzed royal jelly protein, folic acid and disodium hydrogen phosphate. The additive is composed of sodium dihydrogen phosphate, citric acid and sodium citrate. The mask can provide rich nutrients for skin, deeply care the skin, moisturize and relieve the skin, tighten the skin, resist wrinkles and make the skin moisturized, glossy, elastic and tight, and is high in use safety and wide in application prospect.

The invention relates to the technical field of cosmetics, and particularly discloses repairing essence oil and a preparation method thereof. The essence oil comprises a humectant, a conditioning and repairing agent, an emollient, an antioxidant, a preservative, an aromatic and an auxiliary agent. The skin moisturizer, the conditioning and repairing agent, the emollient and other active ingredients in the formula all adopt natural plant extracts as main ingredients, and are supplemented with common, safe, non-toxic and small-irritation auxiliaries, so that the essence oil product with obvious advantages in the aspect of repairing is prepared, and meanwhile, the moisturizing property is good.

The invention relates to the technical field of food fresh-keeping materials, in particular to a chitosan-curcumin nano-composite fresh-keeping agent and a preparation method thereof.The chitosan-curcumin nano-composite fresh-keeping agent comprises nano-particles of a chitosan-sodium alginate-oxidized sodium alginate interpenetrating network structure, according to the nanoparticles, protonated amino groups of chitosan and carboxyl groups of sodium alginate form a polyelectrolyte compound core, aldehyde groups of oxidized sodium alginate and amino groups of chitosan are subjected to a Schiff base reaction to form a chemical cross-linked network, and zinc ions, amino groups of chitosan, carboxyl groups of sodium alginate and carboxyl groups of oxidized sodium alginate form coordination cross-linking; curcumin and epigallocatechin gallate form a compound through a hydrogen bond and a hydrophobic effect, the compound is embedded in an interpenetrating network structure, beta-diketone groups of curcumin and zinc ions form chelating coordination, a chitosan-sodium alginate-oxidized sodium alginate ternary interpenetrating network is constructed, and the chitosan-sodium alginate-oxidized sodium alginate ternary interpenetrating network structure is formed. The stability is improved by utilizing the synergistic effect of triple mechanisms of electrostatic interaction, Schiff base chemical bonds and zinc ion coordination.

The invention provides a preparation method of an environment-friendly preservative for preparing a dog fur specimen, and belongs to the field of animal specimen preparation. According to the preservative, natural plant extracts are combined with low-toxicity chemical components, so that the original color and form of a specimen can be kept, and excellent corrosion resistance, mildew resistance and worm damage resistance are provided. Compared with a traditional formaldehyde preservative, the preservative disclosed by the invention has the advantages of low toxicity, small smell, safety in operation and the like, and is suitable for long-term preservation of marine animal specimens in museums, scientific research institutions and related units.

The invention relates to the technical field of cosmetics, in particular to shower gel with deep cleaning and efficient whitening effects and a preparation method of the shower gel. Shower gel with deep cleaning and efficient whitening effects is prepared from the following raw materials in parts by mass: 0.08 to 0.12 part of disodium ethylene diamine tetraacetate, 0.2 to 0.3 part of a whitening plant extract, 8 to 10 parts of a cleaning agent, 0.2 to 0.25 part of a whitening and freckle removing agent, 0.2 to 0.3 part of a preservative, 0.3 to 0.4 part of a bacteriostatic agent, 0.4 to 0.6 part of pearly slurry, 1.4 to 1.6 parts of sodium chloride, 0.2 to 0.3 part of essence and 83 to 85 parts of deionized water. The shower gel formula provided by the invention not only can provide a deep cleaning effect, but also can effectively whiten the skin, has multiple effects of bacteriostasis, mildness, oxidation resistance, inflammation resistance, skin metabolism promotion and the like, and brings comprehensive skin care experience to a user.

The invention relates to the technical field of raw material crushing, in particular to a raw material crushing device for preparing a fruit preservative. Comprising a base which is provided with a driving module; the outer cylinder is rotationally connected to the base, and a lining plate layer is fixedly connected to the inner side of the outer cylinder; the multiple fixing shells are fixedly connected to the outer cylinder and fixedly connected with the lining plate layer, the fixing shells are slidably connected with baffles, the baffles are in ball joint with spline rods, and the spline rods are in threaded connection with spiral sleeves; the sliding piece is fixedly connected to the spiral sleeve; and the limiting ring is fixedly connected to the base and is in sliding connection with the sliding piece. By changing the moving distance of the baffle and increasing the contact area of the baffle and a mixture, the probability that materials collide with a crushing medium is increased, the material crushing force is increased, the reduction of the particle size of the materials is accelerated, and the effect of controlling the particle size of the crushed materials is achieved.

The invention belongs to the field of food processing, and particularly relates to an ostrich meat preservative and a preservation method. The ostrich meat preservative provided by the invention is prepared by matching and mixing the chitosan, the nisin and the tea polyphenol according to a specific proportion, so that the refrigeration refreshing time of the ostrich meat treated by the preservative can be effectively prolonged, the ostrich meat can maintain a relatively high L * value and a * value within 16 days of storage, the deterioration of meat color is delayed, the water-retaining property is remarkably improved, and the quality of the ostrich meat is improved. The content of thiobarbituric acid reactants and volatile basic nitrogen is obviously reduced, and fat oxidation and protein degradation are inhibited; the total number of bacterial colonies and the number of microorganisms such as coliform bacteria, pseudomonas, mould and saccharomycetes are obviously reduced. The growth and reproduction of putrefying bacteria can be effectively inhibited, and the cold fresh shelf life is prolonged.

The invention discloses a bacterial inhibitor for sea bass preservation, the bacterial inhibitor is bacteriocin generated by fermentation of lactobacillus plantarum L13 (the preservation number is CGMCC NO.27398), the bacteriocin comprises active polypeptide xylAB, the amino acid sequence of the xylAB is LLSSLATTGAIALGATAAKA, the preservation number of the bacterial inhibitor is CGMCC NO.27398, the preservation number of the bacterial inhibitor is CGMCC NO.27398, and the preservation number of the bacterial inhibitor is CGMCC NO.27398. The fresh-keeping agent prepared by the invention has a good fresh-keeping effect, can prolong the fresh-keeping period, and has huge potential as a natural food preservative in the food industry.

The invention belongs to the technical field of hydraulic oil, and particularly discloses super-lubricity energy-saving anti-wear hydraulic oil and a preparation method thereof. The super-lubricity energy-saving anti-wear hydraulic oil is prepared from the following components in parts by weight: 75 to 90 parts of composite base oil, 5 to 7 parts of viscosity index improver, 3 to 5 parts of friction improver, 1 to 3 parts of pour point depressant, 0.005 to 2 parts of anti-rust preservative, 0.003 to 0.02 part of demulsifying agent, 0.01 to 0.03 part of anti-foaming agent, 0.05 to 1 part of clearing agent, 0.05 to 2 parts of antioxidant and 0.05 to 1.5 parts of metal deactivator, the composite base oil is composed of coal base oil, second-class base oil and alkyl naphthalene base oil according to the mass ratio of 5: 4: 1. The super-lubricity energy-saving anti-wear hydraulic oil provided by the invention is high in viscosity index, excellent in shear stability, excellent in oxidation stability, excellent in low-temperature performance and small in friction coefficient, the service life of a product is greatly prolonged, the super-lubricity energy-saving and environment-friendly performance requirements are met, and the super-lubricity energy-saving anti-wear hydraulic oil has a wide application prospect.

The invention provides a fresh-keeping composite solution sprayed before picking fruits in cold-chain logistics transportation and a preparation method of the fresh-keeping composite solution, and relates to the field of fruit fresh keeping. The fresh-keeping composite solution is prepared from the following raw materials in parts by weight: 2.8 to 3.5 parts of schizochytrium limacinum powder, 2.3 to 2.8 parts of salvia officinalis extract, 1.8 to 2.2 parts of brown algae extract, 1.2 to 1.8 parts of banana peel polysaccharide, 0.8 to 1.2 parts of sodium carboxymethyl cellulose, 0.8 to 1.2 parts of tea polyphenol, 0.8 to 1.2 parts of beta-cyclodextrin, 0.8 to 1.2 parts of sodium alginate, 0.8 to 1.2 parts of calcium chloride, 0.4 to 0.6 part of olive oil, 0.1 to 1 part of malic acid and 80 to 90 parts of water. The composite fresh-keeping solution is developed for cold-chain logistics transportation of fruits and is applied before fruit picking, the synergistic effect of multiple natural components is utilized, sterilization and oxidation resistance can be achieved, the growth of microorganisms can be effectively inhibited, the respiration rate of the fruits is reduced, the moisture of the fruits is kept, and the optimal fresh-keeping effect is achieved. The fruit preservative is sprayed before the fruits are picked, so that decay and quality reduction of the fruits in the cold-chain logistics transportation process can be effectively reduced.

The additive 50 is used alone as a tablet or capsule, or together with a base product 54, to produce an enhancing product 52 that provides a health benefit 34 to a person 20 ingesting or using the additive 50, the additive 50 including an enzyme that stimulates the naturally occurring in the human body. The additive 50 has one or more hydrogenated substances 58, such as erythritol 58a, xylitol 58b, hydrogenated dihydromyricetin 58c and / or quercetin dihydrate 58d, and a flavonoid dihydromyricetin 14a. The flavonoid 14 may be extracted from Ampelopsis grossedentata plant 17 and / or a plant 16 selected from the genus Hovenia (e.g., Japanese raisin tree). The additive may also have one or more solvents 60, such as a bicarbonate compound 60a or an alcohol solvent 60b, a pH balanced acid 62, and / or a preservative 64. The base product 54 may be a liquid 66, a solid 68, a powder 70, a chew 72, a medicament 74, a cosmetic 76, or an emulsion or other coating product 78. The reinforced product 52 is a base product 54 reinforced by an additive.

The invention provides a high-temperature-resistant modified organic silicon defoaming agent as well as a preparation method and application thereof. The high-temperature-resistant modified organic silicon defoaming agent comprises the following components in parts by mass: 30-50 parts of organic silicon oil, 15-25 parts of modified organic silicon oil, 3-8 parts of an emulsifier, 2-5 parts of a surfactant, 3-6 parts of a thickening agent, 0.1-1 part of a preservative, 0.5-3 parts of silicon dioxide and 50-80 parts of deionized water. The high-temperature-resistant modified organic silicon defoaming agent prepared by using the components and content provided by the invention has good defoaming property and foam inhibition property at low temperature even if the content is relatively low, also has good defoaming property and foam inhibition property even if the temperature is relatively high, and compared with a defoaming agent in the prior art, the high-temperature-resistant modified organic silicon defoaming agent has the advantages that the defoaming property is good; the high-temperature-resistant modified organic silicon defoaming agent provided by the invention is still relatively high in defoaming property and foam inhibition property under the condition of relatively low content.

The invention belongs to the technical field of nano materials, and relates to a high-content baicalin nano-emulsion as well as a preparation method and application thereof. The high-content baicalin nano-emulsion is prepared from the following raw materials in percentage by weight. 1%-40% of a radix scutellariae extract; 1%-30% of an emulsifier; 1%-20% of a co-emulsifier; 1%-30% of grease; 0.1%-1% of a preservative; and the balance of water. The O / W baicalin nanoemulsion (with the baicalin content of 1%-15%) prepared by adopting a homogenization-ultrasonic process has the average particle size of 50 nm-100 nm, is good in stability and low in viscosity, is a brown-yellow semitransparent liquid in appearance, and successfully solves the problems of poor water solubility and low bioavailability of baicalin. Compared with the prior art, the high-content baicalin nanoemulsion prepared by the preparation method disclosed by the invention has the advantages that the solubility of the baicalin is remarkably improved, the high-concentration baicalin stably exists in the nanoemulsion, and the high-content baicalin nanoemulsion can be applied to cosmetics and also can be used in medicines for treating skin diseases.

The invention discloses a preparation method of a slow-release solid preservative, and relates to the field of fruit preservation, and the preservative is prepared from the following raw materials in parts by weight: 5-8 parts of chitosan, 2-4 parts of carrageenan, 1-5 parts of sodium citrate, 2-3 parts of silicon dioxide, 3-4 parts of 1-methylcyclopropene, 2-3 parts of chlorine dioxide, 1-2 parts of water and 3-6 parts of baking soda. The preservation method of the slow-release solid preservative comprises the following steps: loading the solid preservative in a non-woven bag, placing the non-woven bag in a foam box or a packaging bag loaded with fruits, and sealing the foam box or the packaging bag. The baking soda in the preservative releases carbon dioxide, 1-methylcyclopropene and chlorine dioxide, and meanwhile, the physiological metabolism of the fruits and the generation of ethylene are effectively inhibited, and pathogenic bacteria are killed, so that the shelf life of the fruits is prolonged.

The invention belongs to the field of daily chemical products, and particularly relates to a long-acting waterproof mosquito-repellent emulsion and a preparation method thereof. The mosquito-repelling emulsion comprises a mosquito-repelling active substance, an emulsifier, a humectant, a thickener, a slow-release agent, a waterproof material, a preservative and water. The mosquito-repelling emulsion can achieve a long-acting mosquito-repelling effect, has waterproof and seawater-proof functions, and is particularly suitable for being used in wading and sweating environments such as coastal areas, marshes and rainforests.

The invention discloses a food quality safety tracking management system based on big data, and relates to the technical field of food safety, the system can collect various quality data in real time at key nodes of dairy product production and storage, and realize automatic association of batch information. The parameter acquisition module acquires dairy product production data in real time through acquisition equipment installed at a production node, and acquires storage data at a storage node at the same time. After the data is transmitted to the central database, the system preprocesses the data, and finally a complete preservative traceability data set is generated. And associating the quality data of each batch by using the unique identifier, and associating the dairy product batch ID with the preservative batch ID to form a dairy product component association table PCA, and establishing a detailed tracing relationship between different batches. The module enhances the traceability and transparency of the product quality, and is convenient for quickly finding out the problem source when the quality problem occurs.

The invention belongs to the technical field of artificial boards, and relates to a production process of an anti-termite fiberboard, which comprises the working procedures of wood peeling, chipping, screening, washing, pre-cooking, cooking, hot grinding, sizing, fiber drying, paving, pre-pressing, hot pressing, cooling, sanding, curing and the like, the mass percentage of melamine in the resin is 25-30%, before use, the adhesive is pumped into an intermediate storage tank, then the anti-termite agent is added, and stirring is performed for 20-40 min for use; the glue applying amount is 180-230 kg / m < 3 >, the termite-proof agent applying amount is 5-20 kg / m < 3 >, and the stirring speed is 100-500 r / min in the glue applying process until the adhesive is used up. By using the termite-resistant agent, the high-waterproof urea-formaldehyde resin and a special sizing process, the produced fiberboard is tested according to GB / T 18260-2015 Laboratory Test Method for Poison Effect of Wood Preservative to Termite, the termite-resistant grade reaches grade 9, and a fiberboard product prepared from the fiberboard can effectively prevent invasion of termites.

The invention belongs to the technical field of microorganisms, and discloses a high-temperature-resistant vibrio alginolyticus bacteriophage and a composition and application thereof, the high-temperature-resistant vibrio alginolyticus bacteriophage is named as vibrio alginolyticus bacteriophage PJ644 and is preserved in China General Microbiological Culture Collection Center on August 16, 2024, the preservation address is No.3, No.1 Yard, Beichen West Road, Chaoyang District, Beijing, and the preservation number is CGMCC NO.9624. The preservation number of the strain is CGMCC (China General Microbiological Culture Collection Center) No. The bacteriophage has excellent high temperature resistance, and the bacteriophage and the bacteriophage composition not only can effectively prevent and treat various vibrio infections, but also can be used as active ingredients for preparing bacteriophage pharmaceutical preparations, aquatic feed additives, water disinfectants and aquatic product preservatives, and are used for effectively preventing and treating diseases caused by vibrio infections in aquaculture farms. The use is safe, and the problems of antibiotic residues and pathogen drug resistance caused by use of antibiotics are effectively avoided.

The invention belongs to the technical field of food preservation, and particularly discloses an aerogel fiber membrane with humidity response and capable of being used for food preservation and a preparation method of the aerogel fiber membrane. The preparation method comprises the following steps: mixing a shell film-forming substance with a first solvent to obtain a shell spinning solution; mixing a core layer gel substance, a biological preservative, a cross-linking agent and a second solvent to obtain a core layer gel spinning solution; and then carrying out coaxial electrostatic spinning on the obtained shell layer spinning solution and core layer gel spinning solution at 40-60% RH to obtain the aerogel fiber membrane which has humidity response and can be used for food preservation. The core layer with the porous aerogel structure is prepared in one step, preparation is simple, industrialization is easy to achieve, and good application prospects are achieved; the aerogel fiber membrane not only can solve the problem of juice seepage in the storage process of fresh food, but also can perform humidity response to the environment and intelligently release an antibacterial agent in a controlled mode, growth and reproduction of dominant putrefying bacteria in the storage process of the fresh food are inhibited, and the preservation period is prolonged.

The invention discloses a diflufenican-containing compound and a processing technology thereof, and relates to the technical field of agriculture. The diflufenican-containing compound agent is prepared from the following components in percentage by mass: 10 to 20 percent of diflufenican, 8 to 12 percent of isoproturon, 8 to 12 percent of florasulam, 0.5 to 1 percent of an anti-freezing agent, 0.5 to 1 percent of a de-foaming agent, 1.5 to 2.5 percent of a cosolvent, 1 to 3 percent of a wetting agent, 0.5 to 1 percent of a preservative, 1.5 to 3.5 percent of a dispersing agent and the balance of water. The defoaming agent is prepared from butynediol diethoxy ether grafted with low-hydrogen polydimethylsiloxane, and the defoaming agent is prepared from the butynediol diethoxy ether grafted with low-hydrogen polydimethylsiloxane; the dispersing agent is prepared from polyether amine bridging modified sodium lignin sulfonate. The pesticide is loaded on the nano silicon dioxide, so that the pesticide has good release performance and stability, the utilization rate of the pesticide is improved, the nano pesticide is small in size, the pesticide can better permeate into plant tissues, and a better prevention and treatment effect is achieved.

The invention relates to physico-chemical combined sunscreen water dispersion slurry as well as a preparation method and application thereof. The water dispersible slurry comprises 5-20% of an inorganic sun-screening agent, 25-50% of an organic sun-screening agent, 10-30% of a humectant, 5-15% of an emulsifier, 0.1-2% of a preservative and the balance of water. The preparation method comprises the following steps: heating and dissolving the organic sun-screening agent, and cooling to room temperature; dispersing the emulsifier into the humectant, and uniformly stirring to prepare D-phase gel; adding inorganic sun-screening agent powder and the organic sun-screening agent liquid into the D-phase gel, and stirring at a high speed to obtain viscous O / D-phase gel; the mixed water and the O / D phase gel are stirred and dispersed into O / W emulsion; and carrying out high-pressure homogenization on the O / W emulsion. The water dispersible slurry can be used as a raw material to be applied to sunscreen daily cosmetics, especially O / W type sunscreen cream. By precisely regulating and controlling D-phase emulsification and a high-pressure homogenization process, a stable nano dispersion system is constructed, particle aggregation is inhibited, and the stability of the water dispersion slurry is improved. The prepared sunscreen water dispersible slurry is easy to disperse and suitable for various sunscreen systems, and the production efficiency is greatly improved.

The invention discloses a preparation method and application of chlorine dioxide preservative paper.The preparation method comprises the steps that starch, nanocellulose, hydrogen peroxide, ferric sulfate, distilled water and sodium hydroxide are mixed to obtain gelatinized starch, and then the gelatinized starch is mixed with water-based acrylic resin, casein, alkyl glycoside and ammonium persulfate to obtain composite starch glue; mixing sodium chlorite and composite starch glue to obtain fresh-keeping coating liquid A, and then coating the fresh-keeping coating liquid A on fresh-keeping base paper to obtain fresh-keeping coating liquid A paper; citric acid and distilled water are mixed to obtain fresh-keeping coating liquid B, and then fresh-keeping base paper is soaked in the fresh-keeping coating liquid B to obtain fresh-keeping coating liquid B paper; the fresh-keeping coating liquid A paper and the fresh-keeping coating liquid B paper are attached to obtain the chlorine dioxide fresh-keeping paper. The chlorine dioxide fresh-keeping paste is pasted on the inner side of the blueberry packaging box cover to keep the blueberries fresh. The chlorine dioxide preservative paper prepared by the invention can solve the problems of burst release and short retention time of chlorine dioxide, can reduce the problems of easy softening, rot and deterioration of picked blueberries, prolongs the shelf life of the blueberries, and improves the commodity value of the blueberries.