367 results about "Sodium propionate" patented technology

A topical mycological treatment composition for medical, veterinarian, or dental use contains as active ingredients clotrimazole, ketoconazole, micanazole, nystatin, tolnaftate, propionic acid, sodium propionate, undecelynic acid, and zinc undecelynate. These ingredients are contained in a natural cream base, and the base may also contain an anti-inflammatory agent and an antibacterial agent.

The preparation method for super-capacitance material comprises: with meta-dihydroxybenzene and formaldehyde as the reacting material, with sodium acetate or sodium propionate or the mixture as additive, adding transition metal oxide during the gelling to obtain the uniform distributed RF aqueous gel with rich transition metal salt; then, with N2 or H2, drying on common pressure, and charring to obtain the final product with 400F/g-870F/g capacity.

The invention relates to a preparation method of flurbiprofen axetil. The method comprises the following steps of: preparing 4-bromine-2-fluoroanili from fluoroaniline under the action of 1,3- dibromo-5,5-dimethyl hydantoin; condensing 4-bromine-2-fluoroanili with benzene under the action of a catalyst and sodium nitrite to synthesize 4-bromine-2-fluorobiphenyl; carrying out grignard reaction and acidity reaction on the 4-bromine-2-fluorobiphenyl and 2-bromine sodium propionate under the action of a catalyst to generate 2-(2- fluorine-4-biphenylyl) propionic acid; condensing the 2-(2- fluorine-4-biphenylyl) propionic acid with 1-chloroacetic ethyl acetate to generate a target compound flurbiprofen axetil; and carrying out molecular distillation on the flurbiprofen axetil crude product to obtain a flurbiprofen axetil final product.

The invention relates to a mildew-resistant composite antioxidant additive which comprises propionic acid 5-30% by weight, propionates such as sodium propionate, ammonium propionate, calcium propionate, potassium propionate, or magnesium propionate 10-50% by weight, citric acid 1-10% by weight, Etyoxyquin 5-30% by weight, 2, 6-dibutyl hydroxy toluene 5-25% by weight. The addictive is prepared through mixing these effective compositions with silicon dioxide, diatomite, zeolite powder, montmorillonite powder and bentonite as carrying agents.

A method for preparing a loxoprofen intermediate comprises the following steps that 1, on the presence of sodium alkoxide, benzyl cyanide and dimethyl carbonate are subjected to methylation in an organic solvent, and 2-(phenyl cyano) sodium propionate is obtained; 2, 2-(phenyl cyano) sodium propionate and dimethyl sulfate react in an organic solvent to obtain 2-(phenyl cyano) methyl propionate; 4, 2-(phenyl cyano) methyl propionate reacts under the alkaline condition to obtain 2-phenyl propionitrile; 4, 2-phenyl propionitrile is hydrolyzed under the alkaline condition, acid is added for acidizing after the reaction to obtain 2-phenylpropionic acid; 5, 2-phenylpropionic acid, hydrobromic acid and paraformaldehyde are mixed and subjected to a bromine methylation reaction under the acidic condition, and 2-(4-tribromomethyl phenyl) propionic acid is obtained.According to the method, a new synthesis route is designed, product selectivity is good, the purity is high, the conversion rate is high, and few by-products are generated; the raw materials are simple and easy to obtain, the production conditions are mild, the process is simple, production cost is low, and pollution is small.

The invention discloses a method for preparing 3-mercaptopropionic acid, comprising the following steps of: (1), after mixing thiourea and hydrochloric acid, stirring; (2), dropping acrylic acid; keeping temperature at 80-90 degrees centigrade; and keeping the reaction for 1-7 h; (3), adding sodium hydroxide solution; hydrolyzing; generating sulphur sodium propionate and urea; and (4), acidizing by adding hydrochloric acid; preparing solution containing 3-mercaptopropionic acid; and, after extracting through an organic solvent, decompressing and distilling to obtain the 3-mercaptopropionic acid. Reaction liquid contains a few by-products. The extraction process is easily carried out. The product is good in colour and high in content. After being extracted, waste liquid can be separated and recycled by simply distilling and filtering. Residual liquid can be added to new waste liquid to be further treated. The zero emission of the three wastes (waste gas, waste water and industrial residue) can be basically realized.

The invention relates to a compound biological preservative, a preparation method thereof and an application thereof. Each 100g of compound biological preservative comprises 20 to 80g of epsilon-polylysine, 1 to 30g of nisin, 1 to 20g of natamycin, 1 to 20g of nipagin ester, 1 to 10g of sodium propionate, 0.01 to 0.5g of ascorbic acid, 5 to 20g of malic acid and 0.1 to 1g of trimeric sodium phosphate. The compound biological preservative is used in Guang type seasoned sausage products, and the addition amount is 5 to 15g per 50 kg. The compound biological preservative prepared mainly from the epsilon-polylysine can effectively reduce the use amount of salt and white granulated sugar in Guang type seasoned sausages, and has the characteristics of low toxicity, high efficiency and less addition amount. With the advantages of wide antimicrobial spectrum and high bacteriostasis, the compound biological preservative has favorable effect for inhibiting Gram-negative escherichia coli and salmonella which are not easy to inhibit by other natural preservative, and also has inhibiting effect on heat-resist bacillus and some viruses.

The invention discloses a seafood moon cake and a preparation method thereof. The seafood moon cake is prepared from the following raw materials in parts by weight: abalones, sandworms, sleeve-fishes, cuttlefishes, sesame oil, rice meal, flour, oat powder, white granulated sugar, wheat flour, tapioca starch, malt sugar, water, sodium dehydroacetate, sodium propionate, calcium propionate, potassium sorbate, spices and alkaline water. The preparation method comprises the following steps: getting raw materials, pre-processing, weighing, preparing stuffing and wrappers, filling wrappers, forming, roasting, cooling, packaging and obtaining finished products. The seafood moon cake disclosed by the invention has the characteristics that the product is rich in protein and vitamin, and relatively low in fat content; a large number of vitamins are taken to prevent and treat cardiovascular disease, resist ageing and realize nutrition and safety. The processing method is simple, and the finished product is crisp in mouthfeel and convenient to eat.

The invention discloses a preparation method for sweet greasiness-free electronic cigarette juice. The electronic cigarette juice is free from sweet greasiness by suction, and the suction quality of an electronic cigarette is greatly improved. The electronic cigarette juice comprises 1-6 percent of tobacco extract, 1-5 percent of pure water, 0.5-3 percent of tobacco essence, 15-25 percent of edible glycerin, 0.5-5 percent of sweetness covering agent component, 0-2 percent of nicotine, 0.1-1 percent of stabilizing agent and the balance of propylene glycol, wherein the sweetness covering agent comprises a bitter melon extract and/or a buckwheat extract; the electronic cigarette juice further optionally comprises caffeine and 2-(4- metoxybenzene phenoxy) sodium propionate.

The invention discloses a fiber-derived compound additive for pigs and a preparation method of the additive, and relates to the field of animal feed. The method takes tributyrin, rice hull powder, corncob, calcium acetate, sodium propionate, stearic acid and glyceride as raw materials, and comprises the steps of firstly preparing fatty acid particles coated by microencapsulations; after that, evenly mixing betaine, wheat bran, oat bran, psyllium, inulin, pectin, guar gum, sodium alginate and Arabic gum step by step, and adding the fatty acid particles coated by microencapsulations into the mixture; finally, adding corn starch, and evenly mixing to obtain the fiber-derived compound additive for the pigs. After the fiber-derived compound additive for the pigs is adopted, the development and health of intestinal tracts of piglets are effectively promoted, the reproductive performance of the pigs is improved, the health condition of the animal organism is improved, and the incidence rate of diseases can be reduced.

The invention belongs to the technical field of environmental protection and in particular relates to a method for cultivating high strength aerobic granular sludge. The method for cultivating high strength aerobic granular sludge comprises that refluxed activated sludge of a municipal sewage plant is taken as seed sludge, sodium acetate and sodium propionate are taken as a combined carbon source, and quick cultivation of high strength aerobic granular sludge is carried out in a sequencing batch intermittent technology at the temperature of 25 minus or plus 1 DEG C; after 20 days, mature aerobic granular sludge is formed, and organic matter removal capacity above 90% is realized; meanwhile, the aerobic granular sludge can maintain a stable structure for a longer time and is not broken within 15 minutes under the ultrasonic conditions of 20KHz and 65W.

A technology for preparing the antistaling instant rice flour noodles features that after the noodles are shaped, they are laid aside at 35-45 deg.C for 2-3 hr for loosening, a steam heating step in water is added after pressure resteaming, the antiageing stabilizer used in modifying step is chosen from xantham gum, seaweed gum, menna colloid and propanediol alginate, the used toughening agent is chosen from glutelin pwoder, pentosan and active soybean powder, and one of sorbic acid, sodium biacetate and sodium propionate is used in acid treatment.

The invention discloses a bifidobacteria detecting method in the milk product, which is characterized by the following: adding antibiotics in the culture base to inhibit growing other bacteria; detecting bifidobacteria selectively; studying lithium chloride, sodium propionate and maclicine to obtain fittest antibiotics proportion and quantity of bifidobacteria selectivity count.

The invention belongs to the field of compound preparation method, in particular relates to a synthesis method of sweet taste inhibitor 2-(4- methoxyphenoxy) sodium propionate. P-methoxyphenol and 2-Chloro Ethyl with the mol ratio of 1:1 to 1:1.2 are used as ingredients, and the potassium carbonate is used as aid-binding agent, and the mol ratio of potassium carbonate to P-methoxyphenol is 1:1-1:1.3. Potassium iodide or natriumiodide can be used as catalyst, with the mass thereof being 1%-5% that of the P-methoxyphenol. Absolute ethyl alcohol is used as solvent and the processes of reflex reaction, cooling, filtering, and filtrate distillation are conducted in sequence to reclaim ethyl alcohol. Thereafter, the obtained solid goes through the skimming treatment by Ethyl acetate and de-ionized water. The aqueous layer is collected and the PH thereof adjusted to 2.0 by food grade hydrochloric acid. Aether should be added to dissolve the solid in the queous layer, the aether layer then is distilled to obtain the white solid 2-(4- methoxyphenoxy) monoprop solid which is then dissolved into equimolar aqueous sodium hydroxide solution to be rotatably distilled to expluse water to obtain method of sweet taste inhibitor 2-(4- methoxyphenoxy) sodium propionate. The invention can effectively eliminate the impurities in the products to heighten the purity of the product.

The invention relates to an antirusting agent which is characterized by comprising the following components by weight percent: 1.5 to 2 of calcined soda, 0.5 to 1 of trisodium phosphate, 0.3 to 1 of sodium propionate, 0.5 to 0.7 of trimeric sodium phosphate, and the balance of water. The antirusting agent has the advantages of integration of rust resistance, sterilization, mildew resistance and cleanness, as well as good antirusting effect, wide sterilization spectrum, good sterilization effect, long antirusting and bacteriostasis control period, innocuity, insipidity, no simulation to skin, no corrosion to base metal, no pollution to part surface, no bond, convenient operation, economy, practicality, no environment pollution, stable property, no easy metamorphism, easy storage, no flammability, and the like.

The invention belongs to the technical field of microorganisms, and particularly relates to a method for preparing avermectin (Avermectins). The method comprises the following steps: cultivating a streptomyces avermitilis strain capable of generating avermectin and genetic improved bacteria thereof in a first stage of fluid nutrient medium, and then inoculating into a second stage of fluid nutrient medium as a seed solution; fermenting and cultivating after inoculating the seed solution into the second stage of fluid nutrient medium, and feeding a sodium propionate precursor to carry out feeding cultivation; collecting the avermectin B1a from fermentation broth after fermentation is finished. The effective method has the characteristics of being high in production efficiency and the like.

The invention belongs to the technical field of microorganism detection, and discloses a culture medium for detecting bifidobacterium and a detection method. The culture medium for detecting the bifidobacterium comprises a base culture medium, lactose and cysteine hydrochloride, wherein the base culture medium is prepared from a Columbia blood agar base culture medium, raffinose, lithium chloride,sodium propionate and water, and the pH (potential of hydrogen) value is 5.1. The culture medium has the advantages that besides the Columbia blood agar base culture medium, the culture medium also contains the lactose, the raffinose and the cysteine hydrochloride, and the lactose, the raffinose and the cysteine hydrochloride are used as nutritional agents to promote the growth of the bifidobacterium; when the total number of bifidobacterium is detected by the culture medium, the large colony of the bifidobacterium grows, the judging is easy, and the specificity is good; the good inhibiting function on lactobacillus helveticus is realized, and the content of bifidobacterium in the bifidobacterium and lactobacillus combined nutritional product can be accurately detected.

The invention relates to a production method for a livestock feed additive capable of adsorbing vomitoxin and protecting the intestinal tract. The production method comprises the following steps of 1, air-drying, mixing and coarsely crushing attapulgite clay, bentonite and zeolite ores, adding sodium propionate and sodium carbonate, and performing full mixing to obtain mixed small particles; 2, spraying water, and extruding the mixed small particles into a flaky clay mixture; 3, performing air-drying and beating, raising the temperature to 80 to 90 DEG C, performing high-speed shearing by using an emulsifier, and performing treatment to obtain emulsion by using a high-pressure homogenizer; 4, removing impurities by using a vibrating screen, performing grading by using a cyclone, and performing pressure filtration dehydration to obtain a cake; 5, performing air-drying, crushing and grinding to obtain the livestock feed additive capable of adsorbing vomitoxin and protecting the intestinal tract. According to the production method, the adopted ores are readily available, the production cost is low in cost, easy to control and suitable for industrial application, and the operating steps are simple; moreover, the obtained livestock feed additive has a good adsorption effect on vomitoxin, and the intestinal tract and the health of livestock can be protected.

The invention discloses a water-based high-temperature-resistant antirust paint. The water-based high-temperature-resistant antirust paint is characterized by being prepared from the following raw materials in parts by weight: 1-2 parts of sodium propionate, 2-3 parts of sodium pyrophosphate, 4-6 parts of mica powder, 2-3 parts of propanediol butyl ether, 23-26 parts of styrene-acrylic emulsion, 1-2 parts of 18-alkyl primary amine acetate, 0.3-0.5 part of organic fluoride modified polysiloxane, 1-2 parts of zinc stearate, 2-3 parts of carbonate pickax, 0.3-0.5 part of sodium oleate, 2-3 parts of polyving akohol, 2-3 parts of a water-based curing agent D230, 0.1-0.3 part of polyxyethylated alkylphenol, 33-36 parts of epoxy resin emulsion, 3-4 parts of barite powder, 4-7 parts of talcum powder, 16-22 parts of deionized water and 4-7 parts of an additive. After the paint is solidified, a paint film is high in hardness, good in abrasive resistance, high in adhesive force and not easy to peel off and also has the functions of resisting high temperature and preventing rust. By utilizing the water-based high-temperature-resistant antirust paint, an out door device shell can withstand harsh environment, the service life is prolonged, the added additive has the effect of reducing noise through damping, outflow of noise is weakened, and harmonious living environment is built.

The invention relates to a supplementary feed and a feeding method thereof, and provides a feeding method by supplementary feed for dairy cows at a perinatal period, so as to improve the milk yield for dairy cows at a perinatal period. The feeding method comprises the steps of first, weighing the rumen bypass fatty acid, the calcium hydrogen phosphate, the magnesium sulfate, the vitamin E, the glucose, the sodium propionate, the rumen bypass lysine and the wheat bran to be evenly mixed and smashed, adding mixture according to 4%-5% of dairy cow concentrated feed, evenly mixing the mixture and then feeding the dairy cows for 20-25 days after parturition. The invention is mainly used for feeding dairy cows at a perinatal period.

An enrichment probiotics pharmaceutics and its preparation method are provided in the invention. The medium is made up of the phosphate, the MgCl2, the CaCl2, the sodium propionate, the distilled water, the proper growth factor and the microelement. And its pH is adjusted to the proper. Then the actived strain is added into the medium to culture. The flocculating agent is made up of the chitosan and the alum. The protecting agent is made up of the dried skim milk, the brown sugar, the glycerol, the distilled water. The weight ration of the probiotics pharmaceutics is probiotics liquid 800-1200 portion, flocculating agent 1-25 portion, the protecting agent 80-120 portion. It can be used to the aquiculture, the agricultural plant, the effluent treatment and the fancy fish breeding. It can inhibit or kill the breeding of the bacillus and the fungus.

The invention relates to an efficient mildew-proof and moisture-proof agent which is prepared from the following components in parts by mass: 10-15 parts of alkaloids, 8-12 parts of bamboo leaf powder, 6-9 parts of methyl silicone oil, 2-5 parts of isothiazolinone, 2-6 parts of microcrystalline wax, 5-8 parts of cinnamomum platyphyllum, 10-12 parts of mica powder, 15-18 parts of bamboo salt, 2-3 parts of sodium propionate and 20-26 parts of water. The efficient mildew-proof and moisture-proof agent provided by the invention has a more efficient mildew-proof technology, effectively absorbs themoisture in humid air to prevent mildewing so as to eliminate depressing breath caused by mildewing smell, and has ventilated and moisture-proof effects.

The invention discloses a liquid mildewproof agent for a feed and a method for avoiding mildew of the feed. The liquid mildewproof agent for the feed comprises the following components: 10-15 of propionic acid, 5-10 of sodium propionate, 8-10 of benzoic acid, 3-5 of sorbic acid, 1-5 of dehydroacetic acid, 30-50 of propionic acid, 1-2 of tween-80, 5-10 of water and 0.5-1 of tert-butyl hydroquinone. When the agent is used, the mildewproof agent and water are mixed according to a mass ratio of 1:(15-20) and diluted to be added into the feed, and 800-850g of the liquid mildewproof agent is correspondingly added in each ton of feed. The liquid mildewproof agent has good distribution consistency in the feed, the water content of a feed finished product can be obviously increased, the liquid mildewproof agent cannot easily cause mildew, and the addition of the liquid mildewproof agent is reduced; the addition of the liquid mildewproof agent is reduced, but a mildewproof effect is improved; and tests on the water and mold number variations of the feed in which the mildewproof agent is added show that the liquid mildewproof agent has mildewproof effect better than that of other liquid mildewproof agents at present.

The invention belongs to the technical field of feed additives, and particularly relates to a composite microorganism additive for removing mycotoxin and a preparation method of the composite microorganism additive. Active components of the composite microorganism additive for removing the mycotoxin are made from the following raw materials in parts by weight: 0.5-3 parts of lactobacillus plantarum, 0.5-3 parts of bacillus subtilis, 0.5-3 parts of sodium propionate, 1-3 parts of a fresh ginger extract, 2-4 parts of a proteolytic enzyme, 1-3 parts of plaster, 20-40 parts of mannan oligosaccharide and 55-75 parts of montmorillonite. In the preparation method, the fresh ginger extract is prepared through a special preparation process. The composite microorganism additive for removing the mycotoxin integrates biological degradation, physical adsorption and intestinal tract degradation, and can effectively absorb various mycotoxin, enhance the immunity of organisms and increase the utilization rate of feeds, and the breeding benefits of breeding households are greatly increased.

A cigarette filter has a filter medium containing an inorganic basic substance such as sodium carbonate and a moisturizing agent selected from the group consisting of glycerin, sodium propionate and sodium lactate.

The invention discloses a preparation method and application of an epsilon-polylysine-containing antimicrobial composition. The epsilon-polylysine-containing antimicrobial composition comprises the following components of 1 to 20% of epsilon-polylysine, 5 to 35% of other antimicrobial agent, and 60 to 90% of solvent and synergistic additive, wherein the antimicrobial agent is a mixture of one or two of caprylhydroximic acid, levulinic acid, sodium levulinic acid, p-hydroxyacetophenone, ethyl lauroyl arginate, tropolone and octenidine; the solvent and synergistic additive are mixture of water and one or at least two of 1,2-propanediol, methylpropanediol, 1,3-propanediol, 1,3-butanediol, 1,2-hexanediol, 1,2-pentanediol, 1,2-octanediol, 1,2-decanediol, polyethylene glycol, ethylhexylglycerinand propanediol carbonate. The epsilon-polylysine-containing antimicrobial composition can be dissolved into water, be convenient in adding and use, and can be widely applied to the fields of cosmetics, wet tissues, masks, washing and the like.