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42 results about "Propyl gallate" patented technology

Propyl gallate, or propyl 3,4,5-trihydroxybenzoate is an ester formed by the condensation of gallic acid and propanol. Since 1948, this antioxidant has been added to foods containing oils and fats to prevent oxidation. As a food additive, it is used under the E number E310.

Exosome-containing composition and application thereof in preparation of anti-aging product

The invention provides a composition containing exosome, which is prepared from the following components in parts by weight: 10 to 20 parts of exosome, 5 to 15 parts of extract, 0.3 to 0.5 part of antioxidant and 0.05 to 0.1 part of preservative, the extract is a mixture of 3-8 parts of aloe extract, 1-5 parts of camellia flower extract and 1-3 parts of cranberry extract; the preservative is one or more of benzoic acid, salicylic acid, boric acid and sorbic acid; the antioxidant is propyl gallate. When the composition is applied to an anti-aging product, the temperature sensing effect and the DPPH free radical scavenging rate are obviously improved.
Owner:GUANGDONG CELL BIOTECHNOLOGY CO LTD

Preparation method of curcumin

The invention discloses a preparation method of curcumin, and belongs to the technical field of natural product extraction. The method comprises the following steps: firstly, adopting a modified deep-eutectic solvent into which propyl gallate is introduced as an extraction medium, and realizing high-selectivity extraction of curcumin through a special molecular structure of the modified deep-eutectic solvent; then the ultrasonic-microwave coupling technology is combined, so that the extraction efficiency is remarkably improved; finally, the modified molecularly imprinted polymer with magnetism is used for precise purification, the material has the specific recognition capacity and the rapid magnetic separation characteristic, polyethylene glycol is introduced to serve as a pore-foaming agent, and more active sites are provided for adsorption of curcumin molecules. According to the method disclosed by the invention, through collaborative innovation of all links, the whole process optimization from extraction to purification is realized, the product purity and the extraction efficiency are remarkably improved, the energy consumption and the solvent pollution are greatly reduced, and a reliable solution is provided for industrial production of the high-quality curcumin.
Owner:SHAANXI NATURAL HEALTHCARE GRP CO LTD

Oil sludge separating agent and oil sludge separating method

The invention belongs to the technical field of oil sludge separating agents, and particularly provides an oil sludge separating agent and an oil sludge separating method.The preparation method comprises the following steps that propylene glycol block polyether, a coagulant and an oil trapping agent are mixed and stirred, and the oil sludge separating agent is obtained; the preparation method of the oil trapping agent comprises the following steps: S01, taking polycaprolactone, adding acetone, and carrying out heating dispersion to obtain a solution A; s02, hydroxypropyl-beta-cyclodextrin and propyl gallate are taken, heated, added with water and stirred, then pH is adjusted, ethylenediamine disuccinic acid is added, stirring continues, and a solution B is obtained; and S03, dropwise adding the solution A into the solution B, maintaining stirring until the solution is completely mixed, then performing rotary evaporation, and collecting solid components, thereby obtaining the product. The total deoiling rate of the oil sludge treated by the oil sludge separating agent and the separation method is greater than or equal to 92.5%.
Owner:ZHEJIANG MEIBAO IND TECH CO LTD

Biological slow-release fertilizer for slope corn planting and preparation method of biological slow-release fertilizer

The invention provides a biological slow-release fertilizer for slope corn planting and a preparation method thereof, and relates to the technical field of corn planting. The fertilizer is prepared from a straw fermentation material, humic acid, kieselguhr, a modified starch material, charcoal, expanded vermiculite, sodium alginate, magnesium sulfate, monopotassium phosphate, urea, ethylenediamine disuccinate trisodium salt and propyl gallate. The straw fermentation material is prepared by crushing straw, performing alkali treatment, inoculating aspergillus oryzae for fermentation, sterilizing, continuing to inoculate bacillus subtilis for fermentation and drying; the modified starch material is obtained by mixing a semi-gelatinized starch material and a completely gelatinized starch material. The method overcomes the defects in the prior art, prematurity of slope field corn planting is effectively promoted through adjustment and improvement of the fertilizer, water and soil loss during planting is prevented, and the effect of high-yield corn planting is achieved.
Owner:INST OF AGRI ENVIRONMENT & RESOURCES YUNNAN ACAD OF AGRI SCI

Water-soluble diclazuril solution and preparation method thereof

The invention discloses a water-soluble diclazuril solution and a preparation method thereof, and belongs to the technical field of veterinary drug preparations, the water-soluble diclazuril solution comprises 10-30 g / L of diclazuril, 100-500 g / L of an organic solvent, 30-60 g / L of an amine organic base, 5-10 g / L of a surfactant, the balance of water for injection, 3-5 g / L of propyl gallate, and 10-15 g / L of a composite fermentation broth, the organic solvent comprises the following components in percentage by mass: 20-40% of N, N-dimethylformamide, 40-70% of propylene glycol and 10-20% of ethanol, and the compound fermentation liquor is a fermentation product obtained by fermenting a mixture of felwort and tamarind fruits with a compound microbial inoculant. The water-soluble diclazuril solution provided by the invention not only can effectively prevent and treat chicken coccidiosis, but also is beneficial to improving the weight gain rate of broiler chickens in the recovery process after infection, the preparation method is simple, the cost is low, the use mode is convenient and efficient, and the use value of the water-soluble diclazuril solution in the aspect of broiler chicken breeding is effectively improved.
Owner:HEFEI ZHONGLONG SHENLI ANIMALS PHARM CO LTD

A Zn(II)-Tb(III) complex ratio fluorescence sensor, a preparation method and application thereof

The application belongs to the field of coordination chemistry and analytical sensing technology, and particularly relates to a Zn(II)-Tb(III) complex ratio fluorescence sensor and a preparation method and application thereof. The sensor is a double-metal coordination polymer formed by coordination of Zn(II) ions, Tb(III) ions, nitrogen-containing organic ligands and carboxylic acid organic ligands. Under excitation conditions, the sensor simultaneously generates an emission signal of ligand coordination with Zn(II) and a characteristic emission signal of Tb(III) ions, forming intrinsic double emission. By monitoring the fluorescence intensity ratio (I395 / I549) of the two characteristic emission peaks at 395 nm and 549 nm, ratio fluorescence detection of propyl gallate can be realized, and the detection limit is as low as 0.35 μM. The sensor of the application has a simple synthesis method, a rapid detection process, and realizes internal calibration by using a ratio signal, has strong anti-interference ability, and is suitable for detection of propyl gallate in edible oil and other actual samples.
Owner:QUFU NORMAL UNIV

Rotigotine-containing adhesive patch

This rotigotine-containing adhesive patch comprises a support layer and an adhesive layer, wherein the adhesive layer contains: at least one selected from the group consisting of rotigotine and pharmaceutically acceptable salts of rotigotine; a rubber-based adhesive base; and an antioxidant. The antioxidant includes propyl gallate, ascorbyl palmitate, and sodium pyrosulfite.
Owner:HISAMITSU PHARM CO INC

A hydrogen-rich physiotherapy product and a preparation method thereof

The application discloses a kind of hydrogen-rich physiotherapy products and preparation method thereof, belong to medical health technical field.The application first uses propyl gallate as main modifier to modify magnesium hydride and magnesium powder, and obtains modified magnesium powder and modified magnesium hydride;After adding natural medicinal plants and hydrogen-rich components (modified magnesium powder and modified magnesium hydride etc.) in hot compress product, increase traditional Chinese medicine physiotherapy and hydrogen therapy function while hot compress physiotherapy, realize the multifunctionalization of hot compress product;Meanwhile, the unique surface coating material is used to physically wrap magnesium powder and magnesium hydride without affecting its physical and chemical properties, which can prevent the product from reacting with water and oxygen during storage, and also does not hinder the reaction of hot steam with magnesium powder and magnesium hydride, thereby accelerating the hydrogen release amount and release speed.
Owner:JIANGNAN UNIV

Varenicline formulations

PendingUS20260108466A1Nervous disorderPharmaceutical non-active ingredientsNitrosoVarenicline Tartrate
In an embodiment, there is provided a varenicline formulation consisting essentially of about 0.85% varenicline tartrate and greater than 1.75% to about 3.0% propyl gallate, wherein the formulation maintains a level of N-nitrosovarenicline (NNV) impurity over the shelf-life of the formulation of not more than 18.5 ppm (37 ng / day) of acceptable daily intake (ADI). In another embodiment, there is provided a varenicline formulation comprising a tablet core comprising about 0.85% varenicline tartrate, about 60.50% microcrystalline cellulose, about 33.33% dibasic calcium phosphate anhydrous, about 2.00% croscarmellose sodium, about 2.57% propyl gallate, and about 0.75% magnesium stearate; and a film coating.
Owner:PFIZER INC

PCB copper surface repair process

The application belongs to the technical field of circuit board repair, and particularly relates to a PCB copper surface repair process. The process comprises the following steps: detecting the copper surface of a PCB, identifying and positioning defects, and generating a three-dimensional damage atlas; using a cleaning solution containing tri-potassium citrate, sodium lauroyl sarcosinate, propyl gallate, glycerol and Trici ne to perform spot cleaning on the defect area; spraying a functional nano-activating agent dispersion liquid made of layered zirconium oxide nanosheets, carboxymethyl chitosan, ammonium tripolyphosphate, naringenin-dopamine-maleic acid copolymer and polyvinyl alcohol aqueous solution to form a nano-structure activation layer; and finally applying a conductive material to fill and repair the defects. The process can realize accurate repair of copper surface micro-defects, enhance the conductivity and interface bonding force of the repaired area, and the repaired PCB has excellent long-term stability, effectively improving the overall reliability and service life of the PCB.
Owner:PINGXIANG LIANJINCHENG TECH CO LTD

A high oil-holding and temperature-resistant olegel and its preparation method

This invention discloses a high oil-holding capacity and temperature-resistant oleogel and its preparation method, comprising dissolving a gelling agent in a base oil, dispersing it under magnetic heating, and obtaining the oleogel after cooling; wherein the gelling agent is composed of β-sitosterol and propyl gallate. This invention uses β-sitosterol and phenols as gelling agents to improve the types of dual gelling agents and enhance various properties of the oleogel; the entire preparation process is carried out under relatively mild temperature conditions, and by controlling the amount of β-sitosterol and phenols, the performance of the final oleogel can be effectively regulated to meet the needs of different application scenarios; this technical route does not involve hydrogenation, avoiding the generation of trans fatty acids; at the same time, it effectively reduces the calorific value of the oil and improves its oxidative stability and health benefits.
Owner:ANHUI AGRICULTURAL UNIVERSITY

Composite MOF (Metal Organic Framework) membrane for gas separation and preparation method of composite MOF membrane

The invention provides a composite MOF membrane for gas separation and a preparation method thereof, and belongs to the technical field of gas separation. The method comprises the following steps: mixing zinc nitrate hexahydrate with a 2-methylimidazole methanol solution, sealing and heating, and carrying out solid-liquid separation and drying to obtain MOF particles; mixing propyl gallate, ferric trichloride hexahydrate and absolute ethyl alcohol, adding the chitosan / acetic acid solution, adjusting the pH value, heating and performing rotary evaporation to obtain modified chitosan syrup; the preparation method comprises the following steps: mixing polyethersulfone, polyvinylpyrrolidone, N-methyl pyrrolidone, fly ash and aluminum oxide to prepare slurry, coating a film, removing a solvent, drying, heating, and carrying out hydroxylation treatment to obtain a ceramic substrate film; pEBAX particles, an ethanol solution, 3-glycidyl ether oxypropyl trimethoxy silane, an acetic acid solution, MOF particles and the modified chitosan syrup are mixed and spin-coated on a basement membrane, and the membrane is formed through standing and drying. The mechanical strength and the carbon dioxide and nitrogen separation performance of the composite MOF membrane can be improved.
Owner:LINGGAS MATERIALS TIANJIN LTD +1

Pharmaceutical dosage form comprising sertraline

PCT designated stageWO2026139284A1Butylated hydroxytolueneMannitol
The invention relates to a pharmaceutical dosage form for oral administration comprising (i) an intragranular phase, which comprises Sertraline or a physiologically acceptable salt thereof; one or more intragranular fillers (preferably selected from one or more sugar alcohols or sugars; preferably mannitol or lactose, more preferably mannitol); one or more intragranular antioxidants (preferably selected from butylated hydroxytoluene (BHT), butylated hydroxy anisole (BHA), tocopherol or derivatives thereof, ascorbic acid or derivatives thereof, sodium metabisulphite, propyl gallate, sodium thiosulphate, or any combination thereof, more preferably ascorbic acid); (ii) an extragranular phase, which comprises one or more extragranular fillers (preferably mannitol, microcrystalline cellulose, lactose, or any combination thereof); and (iii) optionally, a film coating. The invention further relates to a process for manufacture by wet granulation, wherein the antioxidant is preferably dissolved in the granulation liquid.
Owner:KRKA D D NOVO MESTO

An oil sludge separating agent and an oil sludge separating method

ActiveCN122059593BSolid componentCyclodextrin
The application belongs to the technical field of oil sludge separating agents, and specifically provides an oil sludge separating agent and an oil sludge separating method, and the preparation steps include the following: taking propylene glycol block polyether, a coagulant and an oil capturing agent, stirring, and obtaining; the preparation steps of the oil capturing agent include the following: S01. Taking polycaprolactone, adding acetone to heat and disperse to obtain A liquid; S02. Taking hydroxypropyl-beta-cyclodextrin and propyl gallate, heating, adding water and stirring, then adjusting pH, adding ethylenediamine disuccinic acid, and continuing to stir to obtain B liquid; S03. Dropping A liquid into B liquid, maintaining stirring until mixing is complete, and then rotary evaporation to collect solid components to obtain. After the oil sludge is treated by the oil sludge separating agent and the separating method, the total oil removal rate of the oil sludge is greater than or equal to 92.5%.
Owner:ZHEJIANG MEIBAO IND TECH CO LTD

A method for producing glutamic acid by fermentation, a culture medium and application thereof

The present application relates to the technical field of microbial fermentation culture, and specifically discloses a method for fermentatively producing glutamic acid, a culture medium and application thereof. The method for fermentatively producing glutamic acid adds catechol to seed culture medium and fermentation culture medium, starts to add flow-adding liquid one after complete consumption of the base sugar, and starts to add flow-adding liquid two when the acid concentration in the fermentation broth reaches 140-165 g / L; the flow-adding liquid one is a glucose solution containing propyl gallate, the concentration of glucose in the flow-adding liquid one is 68-72%, and the concentration of propyl gallate is 10-50 mg / 100 g; the residual sugar concentration in the fermentation broth is controlled to be less than 5 g / L by adding the flow-adding liquid one; and the flow-adding liquid two is a sorbitol solution, and the sorbitol concentration in the fermentation broth is controlled to be 0.5-4 g / L by adding the flow-adding liquid two. The method can improve the fermentation conversion rate and is suitable for industrial production.
Owner:MEIHUA BIOTECH LANGFANG CO LTD

Antibacterial composite fabric and preparation method thereof

The invention relates to the technical field of textile fabrics, in particular to an antibacterial composite fabric and a preparation method thereof. The antibacterial composite fabric is formed by blending and weaving reinforced fibers and photoresponse antibacterial fibers, and the photoresponse antibacterial fibers comprise the following components: regenerated polyester, propyl gallate, nano-zinc oxide, trimellitic anhydride and a catalyst; the reinforced fiber comprises the following components: regenerated polyester, nano cellulose with amino introduced on the surface through siloxane modification, and an ecological antibacterial agent. Trimellitic anhydride is introduced to be copolymerized with regenerated polyester, so that the hygroscopicity of the fiber is improved, and carboxyl is introduced; the antibacterial components propyl gallate and nano-zinc oxide realize double antibacterial effects of illumination triggering and contact sterilization through an organic-inorganic synergistic mechanism. The mechanical strength of the fiber is improved through the rigid structure of the aminated cellulose nanocrystals in the reinforced fiber; finally, chemical bridging is formed on a fiber interface through a thermal process, and the fabric with strength and lasting antibacterial property is created.
Owner:WUJIANG XINGYE TEXTILE CO LTD

Composition for rotational moulding process

Suitable thermoplastic compositions for use in rotational molding applications include a) a polyethylene composition having a melt index I2 of 0.5 to 10 g / 10 min and a melt flow rate of 0.930 to 0.965 g / cm³. 3 The density of; and b) the additive package. The additive package contains i) a first hindered phenolic antioxidant compound selected from d,l-α-tocopherol, d,l-β-tocopherol, d,l-γ-tocopherol, d,l-δ-tocopherol, propyl gallate (3,4,5-trihydroxybenzoate), and mixtures thereof; and ii) a first phosphite antioxidant compound having formula I: (I) wherein R 1 R 2 R 4 and R 5 Independently selected from hydrogen atoms and C1-C 12 Alkyl; R 3 Selected from hydrogen atoms and C1-C8 alkyl groups; L represents a single bond or has the formula -CHR 6 - alkylene groups, wherein R 6 It is a hydrogen atom or C1-C 12 Alkyl group; A is an alkyl group having the formula -CHR 7 - Alkylene, having the formula -C*(=O)CHR 7 - carbonyl group, where C * Bonded to O in formula I, or having a carbonyl group of formula -(C=O)-, wherein R 7 It is a hydrogen atom or C1-C 12 Alkyl; wherein one of Y and Z is selected from hydroxyl, alkoxy, aryloxy, alkylaryloxy, and arylalkoxy, and the other of Y and Z is selected from hydrogen and C1-C. 12 alkyl.
Owner:NOVA CHEM (INT) SA

Rotigotine-containing patch

A rotigotine-containing patch comprising a support layer and an adhesive layer, wherein the adhesive layer contains at least one selected from the group consisting of rotigotine and pharmaceutically acceptable salts of rotigotine, a rubber-based adhesive base, and an antioxidant, wherein the antioxidant comprises propyl gallate, ascorbyl palmitate, and sodium pyrosulfite.
Owner:HISAMITSU PHARM CO INC

Preparation method of quinolone product for inhibiting generation of nitrosamine impurities

PendingCN121226245AOrganic chemistryBenzoic acidCiprofloxacin lactate
The invention provides a preparation method of a quinolone product for inhibiting generation of nitrosamine impurities, and belongs to the technical field of quinolone medicine preparation. The quinolone product is ciprofloxacin, ciprofloxacin lactate or enrofloxacin, and a nitrosamine inhibitor is added in the preparation process of ciprofloxacin, ciprofloxacin lactate or enrofloxacin to obtain the corresponding quinolone product. The nitrosamine inhibitor is any one of ascorbic acid, alpha-tocopherol, maltol, resveratrol, propyl gallate, butylated hydroxyanisole, butylated hydroxytoluene, caffeic acid, ferulic acid, alpha-amino acid, L-cysteine, para aminobenzoic acid, urea and ammonium chloride. According to the method disclosed by the invention, the content of nitrosamine impurities can be reduced to be within 0.3 ppm.
Owner:ZHEJIANG GUOBANG PHARMA +1

Cyanoacrylate medical blood vessel plugging glue and preparation method thereof

The invention relates to the field of biomedical materials, in particular to cyanoacrylate medical blood vessel blocking glue and a preparation method thereof.The cyanoacrylate medical blood vessel blocking glue is prepared from, by mass, 30-35 parts of 2-octyl cyanoacrylate, 7-8 parts of lactide modified hydroxyethyl methylacrylate, 0.02-0.03 part of polymerization inhibitor propyl gallate, 0.02-0.03 part of initiator, 0.02-0.03 part of initiator, 0.02-0.03 part of initiator, 0.02-0.03 part of initiator and the balance water. By innovatively adopting various functional components and carrying out synergistic compatibility and precise preparation, compared with the prior art, the comprehensive performance of the product is remarkably improved, and the plugging agent has the advantages of rapid and reliable plugging effect, good plugging effect, good plugging effect, good plugging effect, good plugging effect, good plugging effect, good plugging effect, good plugging effect, good plugging effect and the like. Meanwhile, good biocompatibility, intraoperative developing capacity and a potential drug sustained release function are achieved, operation is easy and convenient, performance is stable, a safer and more efficient choice is provided for clinical vascular interventional therapy, and wide application prospects are achieved in the fields of cardiovascular and neurological intervention, peripheral vascular embolism and the like.
Owner:WEIHAI MAIKANG MEDICAL TECH CO LTD

Compatible food-grade screw air compressor oil with long service life and low loss and preparation method of compatible food-grade screw air compressor oil

PendingCN121379697ALubricant compositionPolyolefinPolyolester
The invention relates to the technical field of compressor oil, in particular to compatible long-service-life low-loss food-grade screw air compressor oil and a preparation method thereof. Comprising the following raw material components in parts by weight: 7-21 parts of hydrocarbon polymeric fluid containing ester functional groups, 6-18 parts of aromatic ester base oil, 2-9 parts of modified polyol ester, 3-8 parts of cyclohexane dibasic acid ester, 2-5 parts of poly-alpha-olefin, 2-5 parts of shaddock peel essential oil, 1-3 parts of propyl gallate, 3-6 parts of an antioxidant, 0.5-3 parts of an anti-wear reagent at extreme pressure, 0.05-0.2 part of a corrosion inhibitor, 0.05-0.5 part of an anti-rust agent, 0.05-0.2 part of a demulsifier and 0.01-0.2 part of a defoaming agent. The modified polyol ester is prepared by adding diphenylamine, naphthylamine and phenolic ester into polyol ester, and the mass ratio of the polyol ester to the diphenylamine to the naphthylamine to the phenolic ester is (3-5): (1-2): (1-2): 1.
Owner:BOER TECH WUHAN

High-performance nanoelectrospun membrane and preparation method thereof

This invention discloses a high-performance nano-electrospun membrane and its preparation method. The electrospinning solution of the nano-electrospun membrane comprises a synergistically modified polymer matrix material, an organic small molecule, polyethylene glycol, polyvinylpyrrolidone, Tween-80, zinc stearate, and a solvent. The synergistically modified polymer matrix material is based on polyacrylonitrile, and is prepared by introducing dopamine, 3,4-dihydroxyphenylethylamine hydrochloride, 3-aminopropyltriethoxysilane, and cerium nitrate in solution. The organic small molecule is propyl gallate. Through the synergistic effect of the components, the prepared nano-electrospun membrane exhibits high continuous film-forming stability, good structure retention during use, excellent environmental stability, and outstanding storage and reuse performance of the electrospinning solution. The method of this invention is stable, highly feasible, and suitable for the preparation and application of high-performance nano-electrospun membranes.
Owner:SHANDONG TAROKO WEAVING & DYEING IND

Composition containing exosome and application of composition in product with effect of promoting tissue repair

The invention provides a composition containing exosome, which is prepared from the following components in parts by weight: 20 to 30 parts of exosome, 10 to 15 parts of fermentation liquor, 5 to 10 parts of modified gelatin, 2 to 5 parts of beta-1, 3-glucan and 1 to 3 parts of methoxy polyethylene glycol. The preparation method comprises the following steps: mixing the exosome-containing composition, sorbic acid, propyl gallate and licorice essential oil, and stirring and mixing for 2-4 hours at the temperature of 50-70 DEG C at the speed of 400-500 r / min to prepare the product with the effect of promoting tissue repair, so that cell proliferation and repair can be promoted, rapid tissue repair can be promoted, and the biocompatibility is good.
Owner:GUANGDONG CELL BIOTECHNOLOGY CO LTD

Brewing method of lotus root fermented wine with unique flavor

The invention relates to the technical field of fermented wine brewing, and discloses a brewing method of lotus root fermented wine with a unique flavor. Comprising the following raw materials in parts by weight: 80-120 parts of fresh Honghu lotus roots, 0.2-0.4 part of a compound enzyme preparation, 5-8 parts of beta-cyclodextrin, 80-120 parts of crystal sugar, 0.8-1.2 parts of special distiller's yeast, 0.3-0.5 part of a fermentation regulator, 0.05-0.1 part of propyl gallate, 1-1.5 parts of chitosan and 40-60 parts of purple yams. The lotus root fermented wine is brewed by adopting various specific raw materials, so that the final product integrates unique flavors and nutritional ingredients brought by the various raw materials, and the problems that the traditional lotus root fermented wine is relatively single in raw material composition, mostly adopts simple matching of several raw materials, is not unique enough in flavor, is insufficient in richness of the raw materials, and is poor in taste and the like are solved. Therefore, the nutritional value is limited.
Owner:张小风

Purple yam and lotus root fermented wine and brewing method thereof

The invention discloses purple yam and lotus root fermented wine and a brewing method thereof. The fermented wine is brewed by taking fresh Honghu lotus root and purple yam as main raw materials according to a specific weight ratio, and supplementing a compound enzyme preparation, beta-cyclodextrin, rock sugar, special distiller's yeast, a fermentation regulator, propyl gallate and chitosan. The core of the brewing method is as follows: the purple yam is subjected to high-pressure bubble cleaning to protect color and remove astringency; mixing and kneading the lotus root paste, the lotus root juice and the purple yam paste to fuse flavor precursors; a two-stage temperature-controlled fermentation process of aerobic firstly and anaerobic secondly is adopted; and chitosan is combined with a multi-tank series low-temperature clarification process for final treatment. The method effectively solves the problem that the purple yam is easy to oxidize and discolor during processing, successfully brews the special fermented wine which is purple red and stable in color, rich in flavor level (with fruit fragrance, lotus root fragrance and mellow fragrance), high in nutritional value and stable in quality, and is stable in process and suitable for large-scale production.
Owner:张小风

Special compound preparation with analgesic and anti-inflammatory effects for periodontitis and preparation method thereof

The invention relates to the technical field of oral medicine preparations, in particular to a compound preparation special for periodontitis and having analgesic and anti-inflammatory effects and a preparation method of the compound preparation. Comprising 0.01 wt% to 0.05 wt% of capsaicin, 0.5 wt% to 1.5 wt% of propyl gallate, 0.3 wt% to 0.8 wt% of berberine hydrochloride, 2.0 wt% to 5.0 wt% of chitosan quaternary ammonium salt, 1.0 wt% to 3.0 wt% of hydroxypropyl methylcellulose K4M, 0.5 wt% to 1.2 wt% of azone, 5.0 wt% to 10.0 wt% of glycerinum, 0.5 wt% to 1.0 wt% of citric acid-sodium citrate buffer solution and the balance purified water for injection. Through combination of capsaicin (analgesic), propyl gallate (anti-inflammatory) and berberine hydrochloride (bacteriostatic), 'pain relief-inflammation control-pathogenic bacteria removal 'are synchronously carried out, an adhesion-controlled release system is formed by chitosan quaternary ammonium salt and HPMC, so that the retention time of a medicine in a periodontal pocket reaches 8-12 hours, the in-vitro release rate in 24 hours is greater than or equal to 85%, and the effect is remarkable. The local drug concentration is 4-6 times that of common gel, and frequent drug administration is avoided.
Owner:胡灿

Composite defoaming agent for sewage treatment and preparation method thereof

The present application relates to the technical field of chemical materials, and discloses a composite defoaming agent for sewage treatment and a preparation method thereof. The composite defoaming agent comprises raw materials such as epoxy group polyether modified polysiloxane, propyl gallate, zinc lactate and quaternary phosphonium salt modified cationic polymer. Through a multi-step chemical reaction of 'grafting-complexing-assembly', the propyl gallate is first covalently grafted to the polysiloxane main chain, then a 'polysiloxane-polyphenol-zinc' complex structure is formed through zinc ion coordination complexing, and finally the quaternary phosphonium salt modified cationic polymer is anchored and assembled on the complex structure by using coordination bonds, electrostatic interaction and hydrogen bonds, so as to construct a 'polysiloxane-polyphenol-zinc-quaternary phosphonium salt polymer' composite system with stable structure. The problems of single function and easy stratification failure of physical compounding of the existing defoaming agent are solved, multi-effect synergy and long-term stability of defoaming, sterilization and flocculation are realized, and the composite defoaming agent is suitable for high salinity oilfield sewage treatment scenes.
Owner:DAQING PAIRUI ENVIRONMENTAL PROTECTION TECH CO LTD

A biological slow-release fertilizer for corn planting on sloping land and a preparation method thereof

The application provides a kind of biological slow-release fertilizer for corn planting on slope and a preparation method thereof, and relates to the technical field of corn planting.The fertilizer is composed of straw fermentation material, humic acid, diatomite, modified starch material, biochar, puffed vermiculite, sodium alginate, magnesium sulfate, potassium dihydrogen phosphate, urea, trisodium ethylenediamine disuccinate and propyl gallate;and the straw fermentation material is obtained by alkali treatment after crushing straw, inoculation of aspergillus oryzae fermentation, sterilization, and then inoculation of bacillus subtilis fermentation, drying;the modified starch material is obtained by mixing semi-gelatinized starch material and completely gelatinized starch material.The application overcomes the shortcomings of the prior art, effectively promotes early maturity of corn planting on slope by adjusting and improving the fertilizer, prevents water and soil loss during planting, and achieves the effect of high-yield corn planting.
Owner:INST OF AGRI ENVIRONMENT & RESOURCES YUNNAN ACAD OF AGRI SCI

Weather-resistant anticorrosive multifunctional modified water-based paint and preparation method thereof

The invention discloses a weather-resistant anticorrosive multifunctional modified water-based paint and a preparation method thereof, the water-based paint takes a water-based acrylic emulsion as a film-forming resin matrix, propyl gallate, N-(2-aminoethyl)-3-aminopropyltriethoxysilane and cerous nitrate are introduced in situ on a molecular chain or a crosslinking node of the water-based acrylic emulsion, and the weather-resistant anticorrosive multifunctional modified water-based paint is prepared. A water-based film-forming resin matrix is synergistically modified, and functional small organic molecule allantoin is introduced, so that a stable synergistic effect system is constructed. The water-based paint is prepared from a synergistic modified water-based film-forming resin matrix, functional small organic molecules, an anti-rust pigment and filler and a plurality of auxiliaries step by step. While the low-VOC environment-friendly characteristic of a water-based system is maintained, the weather resistance, the corrosion resistance, the adhesive force and the water-resistant stability of a coating film are remarkably improved, and the water-based paint is suitable for long-term protective coating of a metal base material.
Owner:DALIAN RUNBANG PAINT LTD CO