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34 results about "Tartronic acid" patented technology
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Tartronic acid or 2-hydroxymalonic acid is a dicarboxylic acid with the structural formula of HOOCCH(OH)COOH. Its derivative, 2-methyltartronic acid, is isomalic acid.
Washing agent for separation membrane, process for producing the same and method of washing
InactiveCN101641147AEasy to cleanNo dangerSemi-permeable membranesDetergent mixture composition preparationCleansing AgentsIon
Provided is a cleaning agent or cleaning method of a separation membrane which has cleaning effects equal or superior to those of conventional cleaning methods in cleaning a separation membrane used for filtration of drinking water, industrial water, river water, lake water, groundwater, reservoir water, secondary effluent, waste water, sewage water or the like; does not include a hypochlorite sothat it neither generates a toxic gas nor adversely affects the human health; and needs less cleaning time owing to elimination of a rinsing step with a large amount of water. The cleaning agent or cleaning method according to the present invention is therefore safe and economical. Disclosed by the present invention is a preferred cleaning agent containing hydrogen peroxide, a heavy metal compoundand a hydroxydicarboxylic acid, wherein the hydroxydicarboxylic acid is selected from the group consisting of malic acid, tartaric acid, tartronic acid, citramalic acid, dioxymaleic acid and dioxymalonic acid, while the heavy metal compound is an iron ion.
Owner:ASAHI KASEI CHEM CORP
Cleaning agent for separation membrane, process for preparing the cleaning agent, and cleaning method
InactiveUS20100133184A1Easy to cleanShorten the timeSemi-permeable membranesDetergent mixture composition preparationCleansing AgentsHydrogen peroxide
Provided is a cleaning agent or cleaning method of a separation membrane which has cleaning effects equal or superior to those of conventional cleaning methods in cleaning a separation membrane used for filtration of drinking water, industrial water, river water, lake water, groundwater, reservoir water, secondary effluent, waste water, sewage water or the like; does not include a hypochlorite so that it neither generates a toxic gas nor adversely affects the human health; and needs less cleaning time owing to elimination of a rinsing step with a large amount of water. The cleaning agent or cleaning method according to the present invention is therefore safe and economical. Disclosed by the present invention is a preferred cleaning agent containing hydrogen peroxide, a heavy metal compound and a hydroxydicarboxylic acid, wherein the hydroxydicarboxylic acid is selected from the group consisting of malic acid, tartaric acid, tartronic acid, citramalic acid, dioxymaleic acid and dioxymalonic acid, while the heavy metal compound is an iron ion.
Owner:ASAHI KASEI CHEM CORP
Preparation method of epoxy resin conductive adhesive for bonding LED chip
InactiveCN104629642AImprove conductivityImprove thermal conductivityNon-macromolecular adhesive additivesMacromolecular adhesive additivesOrganic solventAdhesive
The invention relates to a preparation method of an epoxy resin conductive adhesive for bonding an LED chip and belongs to the technical field of conductive adhesives. The preparation method comprises the following steps: uniformly mixing the following components in parts by weight: 45-60 parts of modified epoxy resin and bisphenol A epoxy resin, 10-12 parts of crystallized polyester resin, 12-15 parts of an epoxy resin diluent, 400-700 parts of silver powder, 4-9 parts of a curing agent, 4-6 parts of a curing accelerant, 4-15 parts of an organic solvent and 3-5 parts of an antioxidant; and grinding the components, wherein the modified epoxy resin is prepared by carrying out epoxidation reaction on a mixture of 3-methylcatechol, tartronic acid, m-trifluoromethylphenol and 4, 4'-dihydroxybiphenyl and epichlorohydrin. By modifying the epoxy resin, the conductivity of the conductive adhesive prepared is improved, and moreover, the heat conducting strength and the shearing strength are improved.
Owner:SPIMAGE XIAMEN CO LTD
Dried meat floss cake
InactiveCN105104489AFull of nutritionGolden colorDough treatmentBakery productsMonosodium glutamatePotato starch
The present invention discloses a dried meat floss cake. The dried meat floss cake is composed of the following materials of cake materials: egg white, galactose, cake flour, yolk, water, salad oil, potato starch, mangos, lemon juice, salt, yeast powder, baking powder, tartronic acid and sucralose; materials for making a salad dressing: whole eggs, galactose, salt, chicken powder, salad oil and white vinegar; and an auxiliary material of dried meat floss. The dried meat floss cake provided by the present invention is nutrient-rich, of a golden color, both sweet and salty, aromatic in character and agreeable in taste, soft and smooth in texture, uniform in air pore, and elastic; the sweetness is proper, which is conductive to growth of bifidobacterium species, thereby preventing obesity, dental decay, constipation and hypertension; with addition of the mangos and tartronic acid, healthcare functions, of beauty skin care, cardiovascular system protection and tumor prevention, of the dried meat floss cake are realized; the chicken powder is used for replacing aginomoto, thereby raising freshness, increasing nutrition and reducing harms caused to human bodies by the aginomoto; and the lemon juice is used for replacing tartar powder and yeast powder is used for replacing baking powder, so the cake is rich in nutrition, safe and health.
Owner:ANHUI HAOMENGYUAN FOOD CO LTD
Cucumber fertilizer for preventing continuous cropping diseases
InactiveCN110540458AEfficient killingPromote formationUrea compound fertilisersFertilizer mixturesDiseaseContinuous cropping
The invention discloses a cucumber fertilizer for preventing continuous cropping diseases. The fertilizer comprises the following raw materials in parts by weight: 60-80 parts of a composite nitrogenous fertilizer, 20-40 parts of cortex eucommiae and rose fermentation extracts, 5-10 parts of polyepoxysuccinic acid, 4-8 parts of aminobutyric acid, 3-6 parts of potassium fulvate, 2-4 parts of rare earth and 3-6 parts of a release control agent, wherein the composite nitrogenous fertilizer is mainly prepared from urea and livestock excrement through composting fermentation. By adopting the fertilizer, the problem that cucumber has serious continuous cropping diseases can be solved, and the content of tartronic acid in cucumber is also increased.
Owner:六安市裕安区荣伟蔬菜种植专业合作社
Nitrogenous fertilizer application method capable of increasing content of tartronic acid in cucumbers
InactiveCN106416565AIncrease contentImprove qualityMagnesium fertilisersFertilising methodsTartronic acidNitrogen fertilization
The invention relates to a nitrogenous fertilizer application method, in particular to a nitrogenous fertilizer application method capable of increasing the content of tartronic acid in cucumbers, and belongs to the field of agricultural planting. The method aims at solving the problem that the content of tartronic acid in existing cucumber fruits is low. According to the method, the application amount of pure nitrogen in nitrogenous fertilizer is 10804.50 mg / plant; the fertilizer is applied in batches according to the development stages of cucumbers, wherein before planting, the fertilizer is applied in 2 times in an equal-amount topdressing mode at the amount of 220.50 mg / plant, and after planting, the fertilizer is applied in 6 times in an equal-amount topdressing mode at the amount of 10584 mg / plant.
Owner:NORTHEAST AGRICULTURAL UNIVERSITY
Nitrogenous fertilizer application method for improving content of tartronic acid in cucumbers
ActiveCN105340451AIncrease the content of tartronic acidAvoid accumulationFertilising methodsFertilizer mixturesNitrate nitrogenTartronic acid
The invention relates to a nitrogenous fertilizer application method for improving content of tartronic acid in cucumbers. According to the method, the application amount of pure nitrogen in nitrogenous fertilizer is 36.8 kg.667 m<-2>, wherein one fourth of nitrogenous fertilizer is used as base fertilizer, and the rest of 3 / 4 of nitrogenous fertilizer is used for equivalent topdressing by 10 times respectively, specifically, the nitrogenous fertilizer comprises amidonitrogen, ammonium nitrogen and nitrate nitrogen, one fourth of nitrogenous fertilizer is used as base fertilizer, at the initial fruiting stage of cucumbers, 3 / 10 of the rest of 3 / 4 of nitrogenous fertilizer is applied equivalently for 3 times respectively as per the fact that the ratio of contents of pure nitrogen in amidonitrogen, ammonium nitrogen and nitrate nitrogen is 1:2:1; at the fast fruiting stage of cucumbers, the rest 7 / 10 of the rest of 3 / 4 of nitrogenous fertilizer is applied equivalently for 7 times respectively as per the fact that the ratio of contents of pure nitrogen in amidonitrogen, ammonium nitrogen and nitrate nitrogen is 1:1:2. According to the invention, nitrogenous fertilizer application is precise, and the optimal nitrogen forms and matching are provided, so that content of tartronic acid in cucumbers is greatly increased, and technical support is provided for rapid development of functional high-tartronic acid cucumbers.
Owner:HEILONGJIANG BAYI AGRICULTURAL UNIVERSITY
Weight-reducing emulsion and preparation method thereof
InactiveCN106619181AImprove the immunityImprove celluliteCosmetic preparationsToilet preparationsVitamin CTrigonelline
The invention belongs to the technical field of daily chemical articles and particularly relates to weight-reducing emulsion and a preparation method thereof. The weight-reducing emulsion is mainly prepared from, by mass, 15-20% of glycerol, 5-10% of propylene glycol, 1-3% of polyoxyethylene oleate, 4-6% of vitamin C, 3-5% of sodium alginate, 1-2% of potassium citrate, 1-2% of lentinan, 0.5-1% of trigonelline, 1-2% of tartronic acid, 1-2% of capsicin, 0.8% of sodium chloride and 45-65% of water. The weight-reducing emulsion can directly act on a fat part, and after the emulsion is continuously used for 1-3 months, the subcutaneous fat content is reduced and skin becomes firm.
Owner:安徽紫檀科技有限公司
Qualitative and quantitative detection method for tartronic acid in cucumbers
The invention provides a qualitative and quantitative detection method for tartronic acid in cucumbers, and belongs to the technical field of chemical detection. At present, a corresponding experimental method for qualitatively and quantitatively detecting the tartronic acid in the cucumbers does not exist. The qualitative and quantitative detection method for tartronic acid in cucumbers comprises steps of removing two ends and a seed cavity of a cucumber, crushing and grinding; centrifuging a ground cucumber sample and taking supernate; performing high performance liquid chromatography (HPLC) detection by using a weak base anionic chromatographic column, selecting a mobile phase for isocratic elution, and using a detector for measuring wavelengths; and gradually diluting a tartronic acid standard substance by using the mobile phase, establishing a standard curve by using a corresponding obtained response value of a standard solution under every concentration as vertical coordinates and using the concentrations of the standard solution as horizontal coordinates, and reading out the content of the tartronic acid in the sample from the standard curve. The qualitative and quantitative detection method is simple in pretreatment and low in cost, can be used for analyzing a plurality of samples simultaneously, and is good in repeatability and accurate and stable in result.
Owner:NORTHEAST AGRICULTURAL UNIVERSITY
Wax gourd healthcare porridge for losing weight
The invention relates to wax gourd healthcare porridge for losing weight. The wax gourd healthcare porridge is prepared from, by weight, 150-200 parts of polished round-grained rice, 100-120 parts of chicken, 180-250 parts of wax gourd, 70-100 parts of carrot, 8-10 parts of fructus lycii, 30-50 parts of kelp, 6-8 parts of lemon paste, 7-15 parts of food additive, 20-30 parts of fine salt and 600-650 parts of water. The wax gourd healthcare porridge contains wax gourd which has effects of inducing diuresis to reduce edema and clearing heat for detoxification, and the wax gourd contains tartronic acid which can effectively inhibit saccharide from being converted into fat. In addition, the wax gourd does not contain fat itself and is low in calorie, thereby being good weight-losing food; food additives improve body immunity and lower blood lipid and blood sugar; carrot benefits liver and improves eyesight, and adding of chicken and kelp further improve appetite. Through reasonable combining, the wax gourd healthcare porridge is good in color and taste and meets appetite of people. Components cooperate with each other to supplement nutrient needed by human bodies, and obvious weight-losing effect is realized.
Owner:广西南宁乐蕊生物科技有限责任公司
Method for extracting preparing fat removing powder through tartronic acid extracted from cucumber
The invention discloses a method for preparing fat removing powder through tartronic acid extracted from cucumber, and belongs to the technical field of extracting and preparing.The method includes the steps that cucumber serves as a raw material, and is sliced and squeezed, ethyl alcohol and flavourzyme is added, then ethyl alcohol is removed in an ultrasonic oscillating mode and a cable-type extracting mode, the tartronic acid is extracted from the cucumber accordingly, diuretic-and-detoxifying food such as white gourds, bitter gourds and green vegetables are added and combined with the tartronic acid, and therefore the method for preparing fat removing powder through the tartronic acid extracted from the cucumber is obtained.An example shows that the method is easy to operate and conduct and low in cost, substances harming to the human body are not generated, the tartronic acid extracted from the cucumber is effectively used for losing weight, safety and health are achieved, and the fat removing rate is 80% or above.
Owner:CHANGZHOU UNIV
Method for synthesizing tartronic acid by using basic nitrogen-doped mesoporous carbon-material-supported Pt catalyst
InactiveCN110577468AReduce usageHigh catalytic oxidation activityPhysical/chemical process catalystsOrganic compound preparationAlkalinitySynthesis methods
The invention discloses a method for synthesizing tartronic acid by using a basic nitrogen-doped mesoporous carbon-material-supported Pt catalyst. The method comprises the following steps: s1, preparing a nitrogen-doped mesoporous carbon material with a -Ph-O-Mg or -Ph-O-Ca structure; s2, preparing the basic nitrogen-doped mesoporous carbon-material-supported Pt catalyst by utilizing the nitrogen-doped mesoporous carbon material; and s3, catalyzing oxidation of glycerol by using the basic nitrogen-doped mesoporous carbon-material-supported Pt catalyst so as to prepare tartronic acid. The catalyst provided by the invention is adopted to catalyze the oxidation of glycerol to prepare tartronic acid, and has the advantages of simple and diverse synthesis methods, wide raw material sources, lowcost, strong alkalinity, mild reaction conditions, high stability and easiness in recycling.
Owner:GUANGDONG UNIV OF PETROCHEMICAL TECH
Cucumber instant noodles
InactiveCN108142816AAvoid burning problemsReduce obesityNatural extract food ingredientsFood ingredient functionsVegetable oilCucumber pickle
The invention discloses cucumber instant noodles. The cucumber instant noodles comprise the following raw materials in parts by weight: 90-100 parts of flour, 20-30 parts of cucumber juice, 15-30 parts of cucumber powder, 4-8 parts of table salt and 8-13 parts of vegetable oil. Compared with the prior art, the cucumber instant noodles disclosed by the invention have the advantages that vegetable nutrient components in instant noodles can be absorbed to the maximum extent in a manner of adding only one kind of vegetables namely cucumbers; the cucumber juice cooperates with the cucumber powder,so that nutrient components in the cucumbers can be utilized to the maximum extent, and waste of residues caused by squeezing the cucumber juice from the cucumbers can also be avoided; in addition, the cucumbers can clear heat and remove toxicity, so that the problem that people after eating the instant noodles suffer from excessive internal heat is solved; and tartronic acid in the cucumbers cansolve the obesity problem caused by the instant noodles which are made in a deep-frying manner.
Owner:广东日可威富硒食品有限公司
Preparation method for high-temperature-resistant anti-track additive
The invention discloses a preparation method for a high-temperature-resistant anti-track additive, and belongs to the technical field of pavement materials. The preparation method comprises the following steps: uniformly mixing 3-methylpyrocatechol, tartronic acid, m-trifluoromethylphenol and 4,4-dihydroxybiphenyl with an aqueous solution of epichlorohydrin and alkaline metal hydroxide, performing heating reaction, evaporating to remove a solvent after the reaction, adding a benzene or ketone solvent, adding water for washing, removing a water phase, and evaporating an organic phase until the water is empty; uniformly mixing modified epoxy resin, polyethylene, polypropylene, crystallized polyester resin, butadiene styrene rubber, stearic acid, carbon fibers, chloracetyl acetylacetic ether, polyimide fibers and ethylene-vinyl acetate polymer, feeding into a single-screw extruder for extrusion and granulation to obtain the high-temperature-resistant anti-track additive. According to the preparation method for the high-temperature-resistant anti-track additive, the epoxy resin used in the anti-track additive is modified, so that the additive can be better applied to the anti-track performance under the high-temperature action of a bituminous pavement.
Owner:广东道衡建设工程有限公司
Lotus root starch nutritious noodles capable of removing heat from liver and improving eyesight
InactiveCN107348351AReduce decompositionReduce absorptionFood ingredient functionsBitter gourdFood material
The invention relates to lotus root starch nutritious noodles capable of removing heat from the liver and improving eyesight, and belongs to the field of health-care foods. The following food materials are matched; lotus root starch contains rich mucus protein and dietary fibers, can reduce absorption of fat by the intestines and the stomach, can promote defecation and can prevent hyperlipaemia symptoms; cooked white gourd soup is rich in rich tartronic acid, and can effectively restrain saccharide from being converted into fat; alkaloid contained in bitter gourd juice can effectively achieve the efficacy of removing heat from the liver and improving eyesight; mung beans contain rich trypsin inhibitors, and can reduce proteolysis and protect the liver; pachyman as a main component of poria cocos has the effect of restraining various bacteria, and has good effect of protect the liver from being damaged; and the five kinds of food materials are in compatibility in proportion, and flour is additionally added, so that the nutritious noodles are made. Modern traditional Chinese medical science research and trial indicate that the nutritious noodles can replace medicines and have the efficacy of reducing blood lipid, clearing heat, removing heat from the liver and improving eyesight.
Owner:湖北鸿大粮油股份有限公司
Externally-applied weight-reducing liquid and preparation method thereof
ActiveCN102727776BReduce stimulationImprove permeabilityMetabolism disorderPlant ingredientsButter cocoaPropyl hydroxybenzoate
Owner:GUANGDONG MARUBI BIOLOGICAL TECH CO LTD
A nitrogen fertilizer application method for improving cucumber malonic acid content
ActiveCN105340451BIncrease the content of tartronic acidAvoid accumulationFertilising methodsFertilizer mixturesPropanolNitrate nitrogen
The invention relates to a nitrogen fertilizer application method for increasing the content of propanol diacid in cucumbers. The application amount of pure nitrogen in the nitrogen fertilizer is 36.8kg·667m-2, wherein 1 / 4 of the nitrogen fertilizer is used as the base fertilizer, and the remaining 3 / 4 of the nitrogen fertilizer is divided into 10 equal amounts Topdressing, specifically, includes amide nitrogen, ammonium nitrogen and nitrate nitrogen, of which 1 / 4 nitrogen fertilizer is used as base fertilizer, and the proportion of pure nitrogen in amide nitrogen, ammonium nitrogen and nitrate nitrogen is 1 in the initial stage of cucumber fruiting. : Apply 3 / 10 of the remaining 3 / 4 nitrogen fertilizer at a ratio of 2:1, and apply in equal amounts in 3 times; during the peak fruiting period of cucumbers, the ratio of pure nitrogen among amide nitrogen, ammonium nitrogen and nitrate nitrogen is 1 Apply 7 / 10 of the remaining 3 / 4 nitrogen fertilizer at a ratio of 1:2, and apply 7 times in equal amounts. The invention precisely applies nitrogen fertilizer to the cucumber, and provides the best nitrogen form and ratio, can greatly increase the content of propanol in the cucumber, and provides technical support for the rapid development of functional high-propanol cucumbers.
Owner:HEILONGJIANG BAYI AGRICULTURAL UNIVERSITY
Efficient synthesis method of weight-reducing component tartronic acid in cucumbers
PendingCN111517942AResolve source issuesAvoid complexityOrganic compound preparationCarboxylic compound preparationAcid dissolutionSodium nitrite
The invention provides an efficient synthesis method of weight-reducing component tartronic acid in cucumbers, which comprises the following steps: S1, preparing tartronic acid: carrying out diazotization reaction on aminomalonic acid serving as a raw material to obtain tartronic acid; S2, carrying out diazotization reaction on aminomalonic acid and sodium nitrite in a dilute acid; S3, after diazotization reaction is finished, directly heating and hydrolyzing without separation, and then concentrating under reduced pressure to obtain a solid; S4, adding an alcohol to remove salt, and recovering the alcohol to obtain a tartronic acid crude product; and S5, dissolving the tartronic acid crude product with an acid, filtering, decolorizing, and recovering the acid to obtain tartronic acid . The method has the advantages that aminomalonic acid with wide sources is used as the raw material, and the tartronic acid is obtained in one step through diazotization reaction, so that the problem ofraw material sources is solved, and the defects of high raw material cost, complex product, difficulty in separation and purification and the like are overcome; the method has the advantages of easily available raw materials, high raw material conversion rate, high purity and yield, stable process conditions and simple operation.
Owner:ANHUI ANLITAI BIOTECH CO LTD
Qualitative and quantitative detection method for tartronic acid in cucumbers
Owner:NORTHEAST AGRICULTURAL UNIVERSITY
Preparation method for sealing adhesive for paper packaging
InactiveCN105754519AHigh viscosityExcellent tack timeMacromolecular adhesive additivesEpoxy resin adhesivesAntioxidantAdhesive
The invention provides a preparation method for a sealing adhesive for paper packaging.The method comprises the following steps that modified epoxide resin, an ethylene-vinyl acetate copolymer, polypropylene, polybutadiene, ethylene glycol glycidyl ether, a curing agent, a curing accelerator, an organic solvent and an antioxidant are mixed to be uniform and then transferred into a three-roller machine, grinding is performed for 2-3 times, filtering is performed through a filter net, and vacuum defoamation is performed for 15-20 min to obtain the sealing adhesive.The preparation method for modified epoxide resin comprises the steps that bisphenol A, m-trifluoromethylphenol, epoxy chloropropane and tartronic acid are mixed with an epichlorohydrin and alkali metal hydroxide water solution to be uniform, a heating reaction is performed, and washing and drying are performed after the reaction is finished to obtain modified epoxide resin.The sealing adhesive obtained through the preparation method is good in adhesiveness, short in initial adhesive time and good in adhesive stripping strength, moisture passing rate and the like, is high in adhesive force with paper and meets the special requirement for paper packaging.
Owner:SUZHOU DINGLI PACKAGING
Functional cigarette paper combustion regulator and application thereof
InactiveCN102864680BSimple preparation processEasy to controlNon-fibrous pulp additionPaper/cardboardMalonic acidPaper production
The invention discloses a functional cigarette paper combustion regulator and an application thereof. The regulator is of a water solution prepared by one or more compounds in malonic acid alkali metal salt, tartronic acid alkali metal salt and propanedioic acid alkali metal salt. The water solution with different concentration, which contains the combustion regulator, is uniformly added into cigarette paper through a measuring rod type film transfer sizing machine during the sizing working section of production of the cigarette paper, or uniformly transferred into the cigarette paper through a roller of an intaglio press, and the prepared cigarette paper is used for producing cigarettes. The functional cigarette paper combustion regulator disclosed by the invention has the following advantages: the preparation process of the functional cigarette paper combustion regulator disclosed by the invention is simple and convenient, the process is easy to control, the production period is short, and instant production can be performed according to production requirements; and the application is simple and convenient, the existing cigarette paper production process does not need to be changed, and the cost is low, thus the industrial application value is better.
Owner:CHINA TOBACCO CHUANYU IND
Organic acid application method for increasing content of tartronic acid in cucumbers
ActiveCN113024330AIncrease contentAvoid accumulationFertilising methodsOrganic fertilisersChlorogenic acidCaffeic acid
The invention relates to an organic acid application method for increasing the content of tartaric acid in cucumbers. The organic acid application method for increasing the content of the tartaric acid in the cucumbers comprises the following steps: applying any one organic acid of citric acid CA, tartaric acid TA, malic acid MA, succinic acid SA, lactic acid LA, fumaric acid FA, caffeic acid CA and chlorogenic acid CGA in the growth period of cucumbers, wherein the concentration range of any one of the citric acid CA and the tartaric acid TA is 0.1-0.2 mmol.L <-1 >; the concentration range of any one of malic acid MA, fumaric acid FA and lactic acid LA is 0.2-0.4 mmol.L <-1 >. According to the method, the organic acid is accurately applied to the cucumbers, and proper organic acid types, organic acid dosage and application time are provided, so that the content of the tartronic acid in the cucumbers can be greatly increased.
Owner:HEILONGJIANG BAYI AGRICULTURAL UNIVERSITY
Hepatitis B virus nucleic acid extraction reagent and extraction method thereof
InactiveCN108570466AReduce extraction timeSimple and fast operationDNA preparationIsobutanolMagnetite Nanoparticles
The invention discloses a hepatitis B virus nucleic acid extraction reagent and an extraction method thereof. The extraction reagent is prepared from the following raw materials in parts by weight: 20to 40 parts of reagent A, 15 to 30 parts of reagent B, 15 to 30 parts of reagent C, 50 to 80 parts of reagent D, and magnetic nanoparticles; the reagent A is prepared from the following materials: Tris , EDTA, NP-40, sodium chloride, 3-hydroxypropane sulfonic acid, fatty alcohol polyoxyethylene ether sodium sulfate, guanidinium isothiocyanate, beta-mercaptoethanol, and water; the reagent B is prepared from the following raw materials: guanidine hydrochloride, water saturated phenol, ammonium sulfate, xylitol, pyrrolidone, isobutanol; the reagent C s prepared from the following raw materials:dimethylformamide and tartronic acid; the reagent D is anhydrous ethanol; and the magnetic nanoparticles are nanometer iron oxide. The hepatitis B virus nucleic acid extraction reagent and the extraction method thereof can extract low concentration free nucleic acid at room temperature without using proteinase K and carrier RNA, and has the advantages that operation is simple, extraction efficiency and extraction purity are improved.
Owner:青岛瑞思科生物科技有限公司
Instant wax gourd noodles
InactiveCN108378290AImprove nutritional deficienciesTake advantage ofFood ingredient functionsWaxDietary fiber
The invention discloses instant wax gourd noodles. The noodles comprise raw materials in parts by weight as follows: 80-90 parts of flour, 10-20 parts of wax gourd juice, 12-18 parts of wax gourd powder, 3-8 parts of table salt, 2-6 parts of eggs and 6-13 parts of edible oil. Compared with the prior art, the noodles have the advantages that the problem that noodles lack nutrients is solved by adding the wax gourd juice and the wax gourd powder to the noodles, the noodles are low in cost and easy to absorb, and nutrient ingredients which cannot penetrate through the wax gourd juice can be fullyutilized. Besides, tartronic acid, caledonite and dietary fiber in wax gourds can effectively relieve obesity.
Owner:FOSHAN SANSHUI JIAXIN AGRI TECH RES INST GENERAL PARTNERSHIP
Breath-freshening herbal toothpaste
InactiveCN109793678AFresh breathAddress bad breathCosmetic preparationsToilet preparationsToothpasteSilicon dioxide
The invention discloses breath-freshening herbal toothpaste and belongs to the field of paint. The breath-freshening herbal toothpaste comprises, by weight, 30-50 parts of silicon dioxide, 10-15 partsof xylitol, 15-25 parts of sorbitol, 2-3 parts of sodium lauryl sulfate, 10-12 parts of calcium dihydrogen phosphate, 0.5-1 part of hydroxymethyl cellulose, 2-3 parts of glycerin, 0.3-0.8 part of titanium dioxide, 0.2-0.3 part of tartronic acid, 3-5 parts of moxa leaf polysaccharide, 2-4 parts of coffee extract, 2-3 parts of lycium barbarum enzyme, 3-8 parts of vitamin and 60-70 parts of water. The breath-freshening herbal toothpaste mainly solves the problem that existing toothpaste is prone to causing peculiar smell in oral cavity and makes people uncomfortable.
Owner:张立山
A kind of preparation method of the epoxy resin conductive glue that is used for LED chip bonding
InactiveCN104629642BImprove conductivityImprove thermal conductivityNon-macromolecular adhesive additivesMacromolecular adhesive additivesOrganic solventHeat conducting
The invention relates to a preparation method of an epoxy resin conductive adhesive for bonding an LED chip and belongs to the technical field of conductive adhesives. The preparation method comprises the following steps: uniformly mixing the following components in parts by weight: 45-60 parts of modified epoxy resin and bisphenol A epoxy resin, 10-12 parts of crystallized polyester resin, 12-15 parts of an epoxy resin diluent, 400-700 parts of silver powder, 4-9 parts of a curing agent, 4-6 parts of a curing accelerant, 4-15 parts of an organic solvent and 3-5 parts of an antioxidant; and grinding the components, wherein the modified epoxy resin is prepared by carrying out epoxidation reaction on a mixture of 3-methylcatechol, tartronic acid, m-trifluoromethylphenol and 4, 4'-dihydroxybiphenyl and epichlorohydrin. By modifying the epoxy resin, the conductivity of the conductive adhesive prepared is improved, and moreover, the heat conducting strength and the shearing strength are improved.
Owner:SPIMAGE XIAMEN CO LTD
Method for quantitatively determining content of tartronic acid in cucumber by ion chromatography
The invention provides a method for quantitatively determining the content of tartronic acid in a cucumber by ion chromatography, which comprises the following steps: S1, preparation of a test solution: homogenizing a to-be-detected cucumber, freezing and centrifuging at a high speed, and filtering to obtain filtrate; and S2, analyzing the peak area of the test solution by using an ion chromatograph, and comparing the peak area with the tartronic acid standard curve to obtain the concentration of tartronic acid in the test solution, thereby obtaining the content of tartronic acid in the to-be-detected cucumber. By adopting the method disclosed by the invention, the content of the tartronic acid shows a good linear relationship in a range of 0.1-10.0 mg / mL, the correlation coefficient is 0.9982, the detection limit is 0.3 mu g / mL, the quantitation limit is 1 mu g / mL, and the recovery rate is 98.15%-99.58%. The method is short in operation time, high in precision and accuracy, good in reproducibility and free of interference of other impurities, can be used for quantitative detection of the tartronic acid in the cucumber, and can meet the requirements of cucumber breeding, quality regulation and control and production and cultivation.
Owner:BEIJING UNIV OF AGRI
A kind of method that catalytic oxidation glycerin prepares tartronic acid
ActiveCN108911961BRich preparation methodLow costOrganic compound preparationCarboxylic compound preparationPropanolPtru catalyst
The invention discloses a method for preparing tartronic acid by catalyzing the oxidation of glycerol, using potassium-modified nitrogen-doped mesoporous carbon material as a catalyst to support Pt, and catalyzing the oxidation of glycerol under mild and non-alkaline conditions to prepare tartronic acid in one step. The mild conditions are: the reaction temperature is lower than 60° C. and normal pressure conditions. Modification of nitrogen-doped mesoporous carbon materials with potassium species improves the basicity of the carrier; secondly, a supported Pt-based catalyst is prepared by using the above-mentioned potassium-modified nitrogen-doped mesoporous carbon materials as a carrier, which improves the alkalinity of the Pt catalyst. Catalytic oxidation activity; third, under mild, non-alkaline conditions, catalyzed oxidation of glycerol to prepare tartronic acid in one step, avoiding the use of alkali and the occurrence of related side reactions.
Owner:GUANGDONG UNIV OF PETROCHEMICAL TECH
Partial esters of polyglycerol with at least one carboxylic acid and one polyfunctional carboxylic acid, their preparation and use
The present invention relates to specific (poly-)glycerol partial esters having at least one carboxylic acid and one polyfunctional carboxylic acid, their use as emulsifiers and formulations comprising said partial esters according to the invention.
Owner:EVONIK OPERATIONS GMBH
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