43 results about "Citrate salt" patented technology

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 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 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.

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.

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.

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 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 belongs to the field of citrate production, and particularly relates to a preparation method of magnesium hydrogen citrate, which comprises the following steps: reacting a citric acid solution with magnesium citrate under certain conditions to generate magnesium hydrogen citrate, and then centrifuging and drying to obtain a finished product of magnesium hydrogen citrate. The provided preparation method is simple in process and low in cost and energy consumption, the prepared magnesium hydrogen citrate is high in solubility, the solubility is 19-20 g / L at the normal temperature, the magnesium content is appropriate and is 9-10 wt%, the magnesium hydrogen citrate is high in safety, and the magnesium hydrogen citrate can be easily absorbed and utilized by a human body and can be applied to electuary, tablets, oral liquid capsules, injections, beverages and food.

The application provides a high-barrier food packaging material and a preparation method and application thereof. The high-barrier food packaging material comprises at least one functional layer, and the functional layer comprises a hydroxyl-containing vinyl polymer and modified nanosheet layer material. The modified nanosheet layer material is modified by a polyphenol hydroxyl compound and a citrate. The nanosheet layer material is modified by the synergistic effect of the polyphenol hydroxyl compound and the citrate, the dispersibility of the nanosheet layer material in the polymer matrix is improved, the gas permeation path is prolonged, the barrier effect retention rate of the material in a wet environment is improved, in addition, the material also has an oxygen removal function, the shelf life of food can be effectively prolonged, and the material is suitable for the field of food packaging with high preservation requirements.

The invention discloses a high-temperature type trivalent chromium plating solution for high-speed chromium plating, which comprises the following active ingredients: 30-120 g / L of trivalent chromium main salt; the trivalent chromium main salt comprises at least one of basic chromium sulfate, chromium sulfate and chromium potassium sulfate; the content of the complexing agent is 90 to 150g / L; the complexing agent comprises at least two of formate, glycine, citric acid, citrate and urea; the content of the conducting salt is 100 to 200g / L; the content of the buffering agent is 30 to 50g / L; the content of the brightening agent is 1.5 to 3g / L; the content of the surfactant is 0.4 to 0.9 g / L; the content of the stabilizer is 4-8 g / L; the pH value of the trivalent chromium plating solution ranges from 1.5 to 4.5. According to the trivalent chromium plating solution, the deposition rate of the sulfate system trivalent chromium plating solution can be effectively increased, and a uniformly-distributed plating layer can be obtained within a short time.

The invention relates to production of citrate in the field of biochemical engineering, in particular to a preparation method of magnesium hydrogen citrate, which comprises the following steps: feeding a magnesium oxide suspension into a citric acid solution at a certain temperature under a stirring condition, reacting and crystallizing to obtain magnesium hydrogen citrate crystals. According to the invention, the molar ratio of citric acid to magnesium oxide is accurately controlled, so that the condition for generating magnesium hydrogen citrate is achieved. Compared with other magnesium supplements, the product obtained by the method has the characteristics of being moderate in magnesium content, high in solubility in water, easy to absorb, weakly acidic, more suitable for stomach environment and the like, and is suitable for being used in the fields of foods and medicines. The method has the advantages of wide raw material source, no need of concentration and alcohol washing, no other byproducts in the production process, simple required equipment, wide reaction conditions, easy control and adjustment of operation parameters, and easy realization of industrial production.

The invention discloses a preparation method and application of protein hollow particles with citrate as a template, and belongs to the technical field of food. According to the invention, micromolecular organic salt is used as a sacrificial template, and citrate is used as the sacrificial template and a stabilizer of hollow particles; the preparation method comprises the following steps: selecting alcohol-soluble protein as a protein model, and preparing alcohol-soluble protein hollow particles which are independent or embedded with hydrophobic functional factors through an anti-solvent precipitation method; citrate is used as a neutral nearby mild condition of a sacrificial template, and has small influence on hydrophobic functional factors such as curcumin. The preparation method of the alcohol-soluble protein hollow particles has the advantages of neutral pH, low salt, simple process steps, high particle stability, active ingredient stability and the like, and can realize efficient embedding of hydrophobic functional factors such as curcumin.

A detergent may include a citrate buffer. A detergent may include a surfactant component. A detergent may include a chelator component, wherein a pH of the detergent composition is in a range of from about 6.5 to about 9, and at least one of the citrate buffer, surfactant component and the chelator component are biodegradable.

The invention discloses a quality-improving and yield-increasing fruit swelling fertilizer containing calcium and magnesium nutrient elements and biostimulant, belongs to the technical field of water-soluble fertilizer production, and aims to meet the growth requirements of various crops. The preservative is prepared from calcium formate, magnesium monohydrate, glycine, EDTA (Ethylene Diamine Tetraacetic Acid) A2 sodium salt, octanoic acid diethylamino ethanol ester citrate, sodium o-methyl benzoate, N-acetylthioproline, chitinase, anhydrous magnesium sulfate and caprolactam ammonium sulfate according to a certain process. The components comprise 23 to 25 parts of calcium formate, 21 to 22 parts of magnesium monohydrate, 12 to 13 parts of glycine, 0.5 part of EDTA (Ethylene Diamine Tetraacetic Acid) 2 sodium salt, 0.2 to 0.4 part of octanoic acid diethylamino ethanol ester citrate, 0.15 to 0.3 part of sodium o-methyl benzoate, 0.15 to 0.2 part of N-acetylthioproline, 0.1 to 0.2 part of chitinase, and the balance of anhydrous magnesium sulfate and caprolactam ammonium sulfate.

The present application relates to the konjac food field, provide a kind of konjac gel food and preparation method and application, to solve the poor stability of existing konjac gel food, insufficient brittleness and poor antibacterial performance Problem.The gel food is mainly based on phosphorylated konjac glucomannan, adding chitosan / microcrystalline cellulose composite filler, carrageenan, sodium alginate, calcium salt and citrate and other auxiliary materials, by the synergistic effect of multiple components Multiple crosslinking network structure is constructed, which significantly enhances the stability and mechanical properties of gel. Temperature gradient control strategy is used in the preparation process, to realize the ordered construction and layer-by-layer solidification of gel network. The product has high gel strength, excellent brittleness, low water separation rate and excellent antibacterial performance, and can be widely used in functional foods simulating the taste of animal cartilage, with good storage stability and sensory quality.

This invention belongs to the field of food processing technology, specifically relating to a highly gelatinous, low-sodium fish paste gel and its processing method. The processing method includes the following steps: fish preparation, two-stage deodorization treatment, synergistic salt reduction regulation using sodium citrate and disodium inosinate, three-dimensional network construction combined with pulsed electric field treatment, and two-stage heating gelation. The beneficial effects of this invention are: the processing method of the highly gelatinous, low-sodium fish paste gel of this invention integrates three major technical modules: two-stage biochemical-polyphenol coupling deodorization, synergistic salt reduction using citrate and disodium inosinate, and combined enhancement using porous polysaccharides, nanocrystals, and pulsed electric fields, constructing a complete fish paste processing technology solution. This solution significantly reduces the amount of salt used (1.0-1.5%) while effectively removing the fishy smell of the raw material and greatly improving the strength and water-holding capacity of the fish paste gel, achieving a synergistic unity of salt reduction, deodorization, and quality enhancement.