58 results about "Citrate salt" patented technology

The invention relates to the field of konjak food, provides konjak gel food as well as a preparation method and application thereof, and aims to solve the problems of poor stability, insufficient brittleness and poor antibacterial property of existing konjak gel food. According to the gel food, phosphorylated konjac glucomannan serves as a main body, chitosan / microcrystalline cellulose composite filler, carrageenan, sodium alginate, calcium salt, citrate and other auxiliary materials are added, a multi-cross-linked network structure is constructed through the synergistic effect of multiple components, and the stability and mechanical performance of gel are remarkably enhanced. In the preparation process, a temperature gradient control strategy is adopted, and ordered construction and layer-by-layer curing of a gel network are achieved. The obtained product has high gel strength, excellent brittleness, low bleeding rate and excellent antibacterial performance, can be widely applied to functional food simulating the mouth feel of animal cartilage, and has good storage stability and sensory quality.

The present application relates to a kind of high efficient preparation high-strength high-conductivity copper-based composite wire method, through high-purity citric acid or citrate one-step generation zero-dimensional GQDs load in two-dimensional GN surface multi-dimensional reinforcing phase, using stirring ball mill preparation kilogram-level GQDs@GN / Cu composite powder, then through pre-pressing and microwave sintering equipment preparation composite bar, finally using cold extrusion extrusion into wire material of cylindrical bar, the yield strength and tensile strength of the GQDs@GN / Cu composite wire material prepared by the method are 274MPa and 314MPa respectively, and the conductivity is as high as 95.3%IACS;The present application has short preparation time, simple process, low production cost, high yield, good reinforcing effect, and is suitable for mass production.

Sterile filtered liquid lactase composition comprising a lactase, preferably a neutral or acidic lactase, an anion selected from malate, tartrate, citrate, gluconate and / or EDTA and a cation selected from sodium and potassium. Preferably, the composition further comprises a polyol. Addition of the said anions to lactase improves filterability by reducing pressure in a filtration system. Preferably the filtration forms part of an in-line filtration system in the production of a dairy product.

The present application relates to the technical field of water treatment, and discloses a composite carbon source for removing nitrate in an aquarium system, a preparation method and application thereof. The components of the composite carbon source include glycerol, slow-release carbon source, zeolite, citrate, vitamin, HEPES and binder. The glycerol and slow-release carbon source in the composite carbon source form synergy, the former can quickly start microbial action and rapidly reduce the concentration of nitrate, and the latter provides long-term support to ensure the sustainability of the degradation effect. The combination not only improves the denitrification efficiency, but also avoids the side effects caused by excessive short-term carbon source. In addition, the glycerol and citrate are synergistic in both chemical and biological aspects: the former is a short-term and rapid energy source, and the latter plays a role in metal buffering and environmental regulation, and both provide good support for efficient denitrification of microorganisms. In combination with the physical and chemical properties of other components, the stability and efficiency of the composite carbon source for denitrification are improved.

Dairy products are produced by subjecting a starting dairy material to nanofiltration to remove monovalent ions to produce an ion-depleted dairy permeate; passing the ion-depleted dairy permeate through an ion exchange column and subsequently with a sodium-containing eluting solution to produce sodium phosphate and sodium citrate derived from the starting material; concentrating the sodium phosphate and sodium citrate; and combining the concentrated sodium phosphate and sodium citrate with dairy components. The dairy product contains an amount of the concentrated sodium phosphate and sodium citrate sufficient to cause fat in the dairy product to be emulsified and protein in the dairy product to be hydrated. In addition or alternatively, a dairy by-product stream may be subjected to ion exchange to remove calcium therefrom; concentrated, and combined with dairy materials naturally containing phosphate and citrate in order to adjust the citrate+phosphate-to-calcium ratio to reach an emulsified dairy product.

The invention discloses a high performance liquid chromatography detection method for the content of cibopadol in cibopadol citrate. Chromatographic conditions are as follows: a reversed-phase chromatographic column is adopted, and a phosphate buffer solution and tetrahydrofuran-acetonitrile are taken as mobile phases. By detecting the content of the cibopadol in the cibopadol citrate, the quality of a cibopadol preparation product is favorably controlled, whether the content of the cibopadol meets the requirement or not is judged, and the stability of the cibopadol product is improved. The detection method disclosed by the invention is high in accuracy, good in separation degree, good in stability, simple and convenient to operate, good in repeatability, strong in pertinence and very good in application value.

The invention discloses a two-way humidifying bag, which belongs to the technical field of humidifying, and comprises a humidifying core material and a packaging body for packaging the humidifying core material, the humidifying core material is formed by adsorbing a saturated salt solution by a porous carrier, the mass ratio of the salt solution to the porous carrier is 1: (1-3), the saturated salt solution comprises the following components in percentage by weight: 30% of water, 30-70% of citrate and 0-40% of chlorine salt, and the saturated salt solution comprises the following components in percentage by weight: 20-30% of water, 30-70% of citric acid and 0-40% of chlorine salt. The mass ratio of the water to the citrate to the chlorine salt is 10: (10-23): (0-13), the packaging body is of a three-layer composite structure and sequentially comprises an outer protection layer, a middle layer and an inner contact layer from outside to inside, the outer protection layer is made of PET, the inner contact layer is made of PE, inner air holes are evenly distributed in the inner contact layer in an array mode, outer air holes corresponding to the inner air holes in a staggered mode are formed in the outer protection layer, and the middle layer is made of PE. And the hole positions of the outer air holes correspond to gap areas among the four adjacent inner air holes. Two-way precise humidity adjustment is achieved, the packaging body is excellent in air permeability and humidity resistance, core material leakage is effectively avoided, and the humidity balance rate is increased.

The invention discloses a carbon nanodot as well as a preparation method and application thereof, and relates to the technical field of carbon nanomaterials. The carbon nanodots are prepared from raw materials including nicotinamide, urea and citric acid or a derivative thereof through solvent heat treatment, and the derivative of the citric acid is selected from citrate, a citric acid hydrate or a hydrate of the citrate. According to the invention, nicotinamide is used as a precursor to synthesize the carbon nanodot under solvent heat treatment, so that the carbon nanodot integrates intrinsic biological activity, efficient photothermal conversion capability and red fluorescence imaging function at the same time, and the limitation of a single therapy is overcome through multifunctional synergistic therapy. In addition, the carbon nanodot provided by the invention has extremely high biological safety.

The utility model relates to reaction device processing technical field discloses a reaction device for synthesizing octanoic acid diethylamino ethanol ester citrate, including the reaction kettle, one end of reaction kettle is equipped with the heat dissipation shell, the inner wall fixed connection of heat dissipation shell has the motor, the output fixed connection of motor has the first bevel gear, one side fixed connection of first bevel gear has the worm, the outer wall screw thread connection of worm has the worm wheel, one side fixed connection of worm wheel has the connecting post, one side fixed connection of connecting post has the stirring piece, one side of first bevel gear is provided with the rotating assembly, and the rotating assembly includes the second bevel gear. In the utility model, the motor is started to drive the first bevel gear to rotate, the worm drives the worm wheel to rotate, the stirring piece rotates, and the material for synthesizing octanoic acid diethylamino ethanol ester citrate in the storage tank can be premixed.

The application relates to the technical field of intelligent detection, and discloses an intelligent detection method and system for illegal addition of food and a storage medium. The method comprises the following steps: preparing a multi-target SERS substrate for interference suppression; extracting a food sample and injecting the substrate, and obtaining a multi-dimensional spectrum by scanning with three wavelengths of laser; performing noise reduction and alignment on spectrum data to extract characteristic peak fingerprints and form a unique identification matrix; training a multi-path parallel attention network to simultaneously identify multiple additives and concentrations through feature fusion. The application solves the problem that SERS technology is affected by interference substances such as citrate in food safety detection, resulting in insufficient detection sensitivity and specificity, breaks through the technical bottleneck that traditional methods are difficult to simultaneously detect multiple illegal food additives, and overcomes the problem that the existing technology lacks intelligent data processing, resulting in low accuracy and efficiency of detection results.

Provided herein are methods of determining the concentration of diethylenetriamene pentaacetate (DTPA) in a pharmaceutical formulation. In exemplary embodiments, the method comprises providing (i) a reference standard comprising, citrate and a known concentration of DTPA and (ii) a sample of a pharmaceutical formulation comprising DTPA, citrate and a protein; wherein the citrate concentration of the reference standard is the same as the citrate concentration of the sample of the pharmaceutical formulation; wherein each of the reference standard and the sample of the pharmaceutical formulation further comprise iron and the iron concentration of the reference standard is the same as the iron concentration of the sample of the pharmaceutical formulation and the iron present in each of the reference standard and sample is in excess of the citrate present in each of the reference standard and sample, and applying each of the reference standard and sample to an RPLC column.

The invention provides betahistine freeze-dried powder and a preparation method thereof.The betahistine freeze-dried powder comprises a drug-loaded microcapsule and a freeze-drying matrix, the drug-loaded microcapsule and the freeze-drying matrix are dissolved in water to form freeze-drying liquid for freeze-drying, the drug-loaded microcapsule is formed by coating a betahistine raw material medicine and citric acid nanoparticles through a pH-sensitive polymer layer, and the pH-sensitive polymer layer is coated with the freeze-drying liquid. The freeze-dried matrix comprises histidine, citrate and a freeze-dried skeleton agent. Histidine and citrate in the freeze-dried matrix release buffer capacity in the storage period to maintain the overall pH stable (3.5-4.5), and pH drift is prevented; if moisture invades in the storage period and the pH value is increased to 5.0 or above, the pH sensitive polymer layer is dissolved, the citric acid nanoparticles inside serve as an emergency buffer agent to further adjust the pH value, and the requirement for pH stability in the storage period is met through the synergistic effect of the endogenous emergency buffer microcapsules and the exogenous active buffer matrix.

The invention relates to the technical field of food fermentation, and discloses umami peptidyl low-salt thick broad-bean sauce and a production process thereof, the production process of the umami peptidyl low-salt thick broad-bean sauce comprises the following steps: preparing anhydrous betaine, zinc salt and citrate into a thermal saturation solvation embedded zinc source precursor; dispersing in saline water to prepare fermentation liquor; and inoculating finished koji and carrying out variable-temperature fermentation. Fermentation is divided into three stages: in a starting stage, temperature is controlled to establish a bacterial system; in the enzymolysis period, the temperature is increased, zinc ions are triggered to be released by utilizing pH reduction caused by acid production, and neutral protease is activated; and supplementing anhydrous betaine in the after-ripening stage to reduce the water activity and construct an anti-corrosion fence. The enzymolysis efficiency is improved through controlled release of zinc ions, and low-salt corrosion prevention is achieved through betaine. The salt content of the obtained product is less than or equal to 8.0 g / 100g, the amino acid nitrogen content is more than or equal to 0.8 g / 100g, and the product is rich in delicate flavor and stable in normal-temperature storage.

The method comprises the following steps: putting a preheated citrate-sodium hydroxide buffer solution into a test bottle filled with a sample, putting the test bottle into a constant-temperature water bath kettle, carrying out closed heat preservation, opening the test bottle, carrying out suction filtration, and collecting the filtrate; adding a sodium hydrosulfite aqueous solution into the test bottles, oscillating, uniformly mixing, preserving heat for a period of time, taking out the test bottle rack, quickly cooling to room temperature, sequentially adding a sodium hydroxide aqueous solution, sodium chloride and an internal standard solution into the test bottles, sealing the test bottles, overturning the test bottle rack by 90 degrees, and enabling the test bottles in the test bottle rack to be in a horizontal state; after the test bottle is shaken for a period of time at a certain amplitude and vibration frequency, the test bottle rack is reset to an initial vertical state, and supernatant liquid in the test bottle is taken for determination after two phases are completely separated. According to the invention, the composition of the detection equipment is improved, and the integrated automatic rapid extraction device is adopted to realize rapid and efficient extraction of banned azo dyes.

The application belongs to the technical field of fertilizers, and particularly relates to a medium-element liquid fertilizer and a preparation method thereof. The medium-element liquid fertilizer comprises 52.5wt%-53.5wt% calcium nitrate tetrahydrate, 4.44wt%-4.56wt% medium-element nitrate, 0.09wt%-0.11wt% manganese nitrate solution with a concentration of 50wt%, 5.95wt%-6.05wt% first chelating agent, 1.45wt%-1.55wt% second chelating agent, 0.39wt%-0.41wt% compound amino acid, 0.49wt%-0.51wt% boric acid, 0.39wt%-0.41wt% first active substance, 0.29wt%-0.31wt% second active substance, 0.29wt%-0.31wt% alginic acid, and the balance of water. The mass ratio of the first active substance to the second active substance is 4:3. The first active substance is diethylaminoethanol succinate citrate, and the second active substance is fatty alcohol citric acid monoester dipotassium salt. The preparation method adopts a sugar alcohol and citric acid monohydrate mild room temperature double-chelating process, so that the fertilizer has both quick-acting and sustained-acting properties. The medium-low temperature chelating process has high chelating degree and good fertilizer mixing property.

In the ferric iron citrate monohydrate defined by the chemical formula FeC6H6O7 H2O (ferrous citrate monohydrate or ferric iron citrate monohydrate) obtained according to a specific production method, the citric acid and the elemental iron are combined in a molecular complex in which the iron is gathered in the citrate moving into a ring-like form and the iron is bound to the O groups of the carboxyls 1 and 3 through ionic bonds, forming two enantiomers D and L (R and S), both of which are completely water-soluble and highly absorbable by the human body. Formula (L) and Formula (D). With a different absorption mechanism than traditional iron molecules, said ferric iron citrate monohydrate can be used in pharmaceutical compositions and / or nutritional compositions and / or food compositions, in particular for the treatment and prevention of iron deficiency anemia and all diseases and conditions associated with iron deficiency. The effectiveness is demonstrated through several examples.

Provided are a salt and / or a crystal form of a compound degrading BTK and preparation and application thereof. The pharmaceutically acceptable salt and crystal form of the compound as shown in formula (I), wherein the pharmaceutically acceptable salt is selected from a maleate salt, a fumarate salt, a hydrogen halide salt (preferably a hydrobromide salt and a hydrochloride salt), a sulfate salt, a phosphate salt, an L-tartrate salt, a citrate salt, an L-malate salt, a hippurate salt, a D-glucuronate salt, a glycolate salt, a mucate salt, a succinate salt, a lactate salt, an orotate salt, a pamoate salt, a glycine salt, an alanine salt, an arginine salt, a cinnamate salt, a benzoate salt, a benzene sulfonate salt, a p-toluene sulfonate salt, an acetate salt, a propionate salt, a valerate salt, a triphenylacetic acid salt, an L-proline salt, a ferulic acid salt, a 2-hydroxyethanesulfonate salt, a mandelate salt, a nitrate salt, a methanesulfonate salt, a malonate salt, a gentisate salt, a salicylate salt, an oxalate salt or a glutarate salt:

The invention relates to a dishwasher-cleaning composition comprising between 10 wt.% and 35 wt.% of a mixture comprising a tribasic acid or salt thereof, preferably citric acid or a citric acid salt, and an acid or an acid salt; wherein said acid or acid salt comprises a total of 1 to 3 atoms selected from C, S or a combination thereof and at least 1 acidic proton. The invention further relates to a product comprising a container comprising a dispensing means, wherein the container comprises such a dishwasher cleaning composition.

The application is an antibacterial polyamide and a preparation method thereof, the antibacterial polyamide containing a reaction product of a polyamide salt, soluble citric acid salt, soluble non-citric acid salt, and a phosphorus catalyst; the preparation method comprising: mixing and stirring the polyamide salt, the phosphorus catalyst, the soluble citric acid salt, and the soluble non-citric acid salt in the presence of a solvent to obtain a mixed salt solution; wherein the soluble citric acid salt and the soluble non-citric acid are added separately during the reaction, and the precipitate is slowly obtained; the solvent comprises water and / or ethanol; the mixed salt solution is evaporated and concentrated to remove the solvent, and the reaction is carried out in the presence of a protective gas, and the antibacterial polyamide is obtained after sufficient reaction; the antibacterial polyamide of the application has a significantly improved antibacterial effect and effectively avoids the problem of poor dispersibility of solid antibacterial agents and polyamides.

The invention relates to the technical field of surface treatment, and discloses a gold plating solution, a preparation method thereof and an electroplating process. According to the total volume of the gold plating solution, the gold plating solution comprises the following components by concentration: 1-20 g / L of gold salt; 100 to 230 g / L of citrate; 20 to 50g / L of oxalate; 0.5-5 g / L of a transition metal additive; 4-10 g / L of an antioxidant; 1-5 g / L of a surfactant; wherein the pH value of the gold plating solution is 4-4.8, and the specific gravity of the gold plating solution is 10-15; the citrate comprises potassium citrate and citric acid; the transition metal additive is selected from at least one of cobalt salt, nickel salt and ferric salt. The preparation method is simple, and the prepared gold plating solution is used for the steps of base material pretreatment, electroplating treatment and aftertreatment in the electroplating process, so that the prepared gold plating product has excellent binding force, wear resistance, corrosion resistance and the like.

The invention relates to the field of printed circuit board production processes, in particular to an environment-friendly alkaline degreaser for a non-conductive printed circuit board material as well as a production process and application of the environment-friendly alkaline degreaser. The cleaning agent is prepared from the following raw materials: 70-90 g / L of an environment-friendly alkali source, 3-8 g / L of a surfactant, 5-12 g / L of a stabilizing auxiliary agent, 1-8 g / L of modified citrate, 0.1-0.5 g / L of an antioxidant and the balance of water, the environment-friendly alkali source is a mixture of a plurality of materials selected from sodium silicate, sodium hexametaphosphate, potassium hydroxide, trisodium phosphate, monoethanolamine and sodium gluconate, and at least one of the materials is potassium hydroxide; the stabilizing auxiliary agent is prepared from boronized polyisobutylene succinimide, branched polyether and a hydrophilic modified cellulose nanocrystal. According to the technical scheme, in the batch oil removal process, the oil removal uniformity and the oil removal effect are good, and the product quality and the production efficiency are guaranteed.

This application relates to the field of food fermentation technology, and discloses a flavorful peptide-based low-salt fermented soybean paste and its production process. The production process includes: preparing a thermally saturated solvated zinc source precursor by using anhydrous betaine, zinc salt, and citrate; dispersing it in brine to prepare a fermentation broth; and inoculating with koji (fermentation starter) for variable-temperature fermentation. Fermentation is divided into three stages: a controlled-temperature initiation stage to establish the microbial culture; an enzymatic hydrolysis stage where the temperature is increased and the pH drop caused by acid production triggers zinc ion release, activating neutral proteases; and a post-ripening stage where anhydrous betaine is added to reduce water activity and construct an anti-corrosion barrier. This invention improves enzymatic hydrolysis efficiency through controlled zinc ion release and utilizes betaine to achieve low-salt preservation. The resulting product has a salt content ≤8.0g / 100g, an amino acid nitrogen content ≥0.8g / 100g, a rich umami flavor, and is stable during room temperature storage.

The application relates to the field of printed circuit board production processes, in particular to an environment-friendly alkaline degreasing agent for non-conductive printed circuit board materials, a production process and application. The environment-friendly alkaline degreasing agent is composed of the following raw materials: 70-90 g / L of an environment-friendly alkali source, 3-8 g / L of a surfactant, 5-12 g / L of a stabilizing auxiliary agent, 1-8 g / L of modified citrate, 0.1-0.5 g / L of an antioxidant and the balance of water; the environment-friendly alkali source is a mixture of multiple kinds of sodium silicate, sodium hexametaphosphate, potassium hydroxide, trisodium phosphate, monoethanolamine and sodium gluconate, wherein at least one kind is potassium hydroxide; and the stabilizing auxiliary agent is composed of boronized polyisobutylene succinimide, branched polyether and hydrophilic modified cellulose nanocrystals. The above technical scheme can achieve uniformity and good degreasing effect in batch degreasing process, and guarantees the quality and production efficiency of products.

The invention belongs to the technical field of antibacterial agents, and particularly relates to a citrate composition of silver and a preparation method and application thereof. The preparation method of the silver citrate composition provided by the invention comprises the following steps: mixing silver carbonate and a citric acid aqueous solution, and carrying out double decomposition reaction to obtain the silver citrate composition, the pH value of the citric acid aqueous solution is 1-5, and the molar ratio of citric acid in the silver citrate aqueous solution to silver element in silver carbonate is greater than or equal to 1: 2. By limiting the pH value of the citric acid aqueous solution and the dosage ratio of the citric acid to the silver carbonate, the citric acid aqueous solution and the silver carbonate are directly mixed under the conditions of normal temperature and normal pressure, so that the citrate composition of silver can be efficiently prepared, the preparation process is simple and easy to operate, and industrial production can be conveniently realized.

A solid beverage composition, containing, by weight: 20-70% carbohydrates; 5-20% glycerol; 10-60% electrolytes; and 0-8% vitamins, wherein the electrolytes contain lactate and / or succinate, and one or more selected from sodium, potassium, chloride, calcium, magnesium, zinc, carbonate, phosphate, sulfate, citrate and glycinate. The osmolality of the solid beverage composition after reconstitution is 280-320 mosmol / kg, which can achieve ideal functions of water retention, loss prevention and rapid electrolyte replenishment, and also realize functions such as enhancing exercise performance and meeting sugar-free requirements.

The purpose of the present invention is to provide a highly palatable crustacean paste-like food that utilizes the shells and other residua parts of crustaceans, and a method for producing same.　The highly palatable crustacean paste-like food is made from crustacean ingredients including shells and viscera, by a method comprising the steps of: mixing the crustacean ingredients and citrate; heat-treating the crustacean ingredients at a pH of 6-10; and making the heat-treated crustacean ingredients into a paste.

Disclosed herein are citrate-based mussel-inspired bioadhesives and methods of making and using the same. Also disclosed herein are methods of treating wounds.

The present invention concerns a process for preparing an aqueous gel ink with fixed color comprising the following steps: (i) preparing a gel-based matrix of aqueous ink; (ii) preparing an aqueous suspension of silver nanoparticles with fixed color by mixing silver salts with: —water, —a mixture of at least an alkali metal or alkaline earth metal salt of citrate, preferably an alkali citrate salt and an alkali metal hydride, preferably NaBH4, —a further reducing agent, preferably ascorbic acid, —and oxidizing agent, preferably hydrogen peroxide H2O2 (iii) adding under agitation the aqueous suspension of silver nanoparticles obtained in step (ii) to the gel-based matrix of aqueous ink obtained in step (i), to obtain an aqueous gel ink with fixed color with silver nanoparticles dispersed therein.

The present invention relates to a compound selected from the group consisting of a lactate, hydrochloride, tartrate, succinate, citrate and maleate salt of a compound of formula (I). The present invention also relates to certain formulations comprising said compound. (I)

The invention provides a high-barrier-property food packaging material and a preparation method and application thereof.The high-barrier-property food packaging material comprises at least one functional layer, and the functional layer comprises a hydroxyl-containing vinyl polymer and a modified nanosheet layer material, the modified nanosheet layer material is modified by a polyphenol hydroxyl compound and citrate. According to the present invention, the nanometer sheet layer material is modified through the synergistic effect of the polyphenol hydroxyl compound and the citrate, such that the dispersibility of the nanometer sheet layer material in the polymer matrix is improved, the gas permeation path is prolonged while the barrier effect retention rate of the material in the wet environment is improved, and the material further has the oxygen removing function, the shelf life of food can be effectively prolonged, and the food packaging bag is suitable for the field of food packaging with high preservation requirements.