16 results about "Glucic acid" patented technology

The invention relates to the technical field of novel fertilizers, and particularly discloses an organic water-soluble fertilizer as well as a preparation method and application thereof. The organic water-soluble fertilizer provided by the invention is prepared from the following components: kitchen waste organic mother liquor, an anti-corrosion synergist, a stress-resistant synergist, a growth-promoting synergist, a dispersing agent and polyethylene glycol-400, the kitchen waste organic mother liquor is prepared by sequentially carrying out wet and hot hydrolysis, amylase enzymolysis, protease enzymolysis and lipase enzymolysis on a kitchen waste solid phase and a kitchen waste liquid phase; the preservative synergist is prepared by mixing a natamycin solution, tea polyphenol and chitosan oligosaccharide; the stress-resistant synergist is prepared by mixing complex enzyme glycoside, a plantain herb extract and gamma-aminobutyric acid; the growth promoting synergist is formed by mixing mineral source potassium fulvate and gluconic acid. The organic water-soluble fertilizer prepared by the invention has good corrosion resistance and product stability, has a good growth promoting effect on crops, and can reduce the number of diseased plants with successive cropping obstacles and improve the yield of the crops in a soil environment with successive cropping obstacles.

The present disclosure addresses the problem of providing a bread that is obtained from a dough containing soybean flour and 0-2% of a sugar in Baker's percentage and that has a good baked color on a crust.　This bread is obtained from a dough containing (i) soybean flour, (ii) 0-2% of a sugar in Baker's percentage, and (iii) at least one selected from the group consisting of gluconic acid, lactic acid, and salts thereof.

The invention discloses a nano-channel based on Pd-Co cyanogen gel nano-enzyme, a preparation method and application of the nano-channel in glucose detection, and belongs to the technical field of biosensors. The nano-channel based on Pd-Co cyanogen glue nano-enzyme is a TiO2 nano-channel (TiNM) with two open ends, the two open ends are a large opening end and a small opening end respectively, metal organic frameworks (MOFs) are grown in situ in the TiNM through a biomimetic mineralization method to immobilize Pd-Co cyanogen glue nano-enzyme molecules, and a metal organic framework composite nano-enzyme structure is formed. Meanwhile, the end face of the small opening end is coated with a pH response polymer to form a gating structure. Glucose generates gluconic acid and hydrogen peroxide under catalysis of Pd-Co cyanogen gel nano-enzyme, the pH change in the channel is triggered, and the pH response polymer is dissolved, so that the gating structure is activated to be opened. The sensor is used for glucose detection, has relatively high selectivity and relatively strong anti-interference capability on glucose, and has good repeatability and operation stability.

The invention provides a preparation method of a catalyst for synthesizing methanol from carbon dioxide, which comprises the following steps: dissolving gluconate containing copper gluconate, magnesium gluconate and zinc gluconate in a solvent to obtain a gluconate solution; adding aluminum oxide powder into the gluconate solution, and then grinding, forming and drying to obtain a precursor; and roasting the precursor in an inert atmosphere to obtain the catalyst for synthesizing methanol from carbon dioxide. The preparation method provided by the invention has the advantages of simple process flow, no need of a washing process, no generation of a large amount of wastewater, small wastewater treatment pressure, and good performance of the obtained catalyst.

The invention discloses a preparation method for improving quality and yield of dried tofu, which comprises the following steps: S1, grinding fully soaked bean materials to obtain raw pulp and bean dregs, and heating the raw pulp to obtain cooked pulp; s2, crushing bean dregs into fine bean dregs with the particle size of 5-20 microns, and mixing the fine bean dregs with the cooked pulp to obtain mixed cooked pulp; s3, curdling the mixed cooked pulp with a composite coagulator to obtain tofu pudding, and sequentially squeezing the tofu pudding to remove water, marinating, frying and seasoning to obtain the tofu pudding, and the composite coagulator is any one or a mixture of two of magnesium chloride, calcium sulfate and beta-glucolactone. According to the leisure dried bean curd and the preparation method thereof, the elasticity of the leisure dried bean curd is increased, the water retention capacity of the leisure dried bean curd is enhanced, the final yield is improved, the texture of the leisure dried bean curd is improved, the water binding capacity, the elasticity, the softness and the baking characteristic of the leisure dried bean curd are improved, and the quality of the dried bean curd is improved.

The application provides a two-dosage-form copper etching liquid and a preparation method thereof, and belongs to the technical field of copper etching liquids, and comprises the following steps: mixing deionized water, ethylene glycol monobutyl ether and a hydrogen peroxide aqueous solution to obtain an A agent; mixing and reacting deionized water, a glucose acid aqueous solution, aminotri (methylenephosphonic acid), lactic acid, triisopropanolamine, gamma-glycidyl ether oxypropyl trimethoxysilane and aluminum lactate to obtain an aluminum-containing hybrid precursor; adding a first phosphoric acid aqueous solution, methanesulfonic acid and lactic acid into the aluminum-containing hybrid precursor, and then adding triisopropanolamine, a second phosphoric acid aqueous solution, 5-amino tetrazole and deionized water, and performing aging and filtration to obtain a B agent; and mixing the A agent, the B agent and deionized water to obtain the two-dosage-form copper etching liquid. The application can improve the storage stability, etching uniformity and copper surface flatness of the etching liquid.

The invention relates to the technical field of tin-plating electrolyte, in particular to a densifier for improving the grain fineness of a tin-plating layer, a tin-plating electrolyte prepared by using the densifier, and a preparation method; the densifier for improving the grain fineness of the tin-plating layer comprises a slow-release film layer and a densifier composition coated in the slow-release film layer, the densifier composition comprises hydroxypropane sulfonic acid pyridinium salt, propargyl alcohol ethoxylate, perfluorohexylethanol polyoxyethylene ether, a pH value regulator, and deionized water, the pH value regulator is composed of methyl sulfonic acid combined with at least one of citric acid, gluconic acid, tartaric acid, and pyrophosphoric acid; the perfluorohexylethanol polyoxyethylene ether accounts for 2-5wt% of the total mass of the densifier composition; the densifier in the invention can improve the grains of the prepared tin-plating layer to be finer, improve the flatness, smoothness and uniformity of the tin-plating layer morphology, and has excellent solderability and solder resistance, and the tin-plating process is stable, thereby achieving the stability of the plating solution, thereby improving the adhesion of the coating.

The application belongs to the technical field of nitride powder preparation, and particularly relates to a preparation method of silicon nitride powder. The preparation method of the silicon nitride powder comprises the following steps: impurity removal through acid immersion in sequence, preparation of a carbon-coated silicon dioxide precursor through multiple immersion and pyrolysis of glucose acid, carbon thermal reduction nitridation under a nitrogen atmosphere, and post-treatment of carbon removal through burning under an air atmosphere. The silicon nitride powder prepared by using the method has high purity and low residual carbon content.

The application belongs to the technical field of sodium ion battery negative electrode materials, and discloses a corn powder / glucose acid cross-linking derived hard carbon negative electrode material and a preparation method and application thereof; the preparation method is as follows: corn powder and glucose acid are stirred at a ratio of 10:7-20, the modified corn powder after drying is prepared for carbonization at a low temperature of 500-700 DEG C in an inert gas for 1-3 hours, and then high-temperature carbonization is carried out at 1100-1600 DEG C for 1-3 hours to prepare hard carbon. The preparation method of the green and environment-friendly, low-cost and high-cycle-stability sodium ion battery biomass hard carbon negative electrode material has the characteristics of mass production, controllable hard carbon surface morphology and excellent electrochemical performance.

The application discloses a method for preparing a high-nickel positive electrode material with a double-layer coated nanolayer, which comprises the following steps: first, preparing a high-nickel positive electrode material; then, coating lithium iron phosphate on the high-nickel positive electrode material; bridging glucose acid based on the coating layer of lithium iron phosphate; and then, coating lithium manganate; and finally, combining the lithium iron phosphate layer and the lithium manganate layer through the glucose acid. The method improves the binding force of the double-layer coating, improves the structural stability of the high-nickel positive electrode material, avoids peeling of the coating layer, and improves the charge-discharge cycle performance.

The application discloses a green water treatment agent with scale inhibition, corrosion inhibition and bacteriostasis performance, and a preparation method and application thereof, and has a chemical structure of wherein the ethylenediamine is used as a connecting arm, and the glucose acid is introduced into a polyaspartic acid peptide bond structure by using a graft copolymerization method to synthesize a novel water treatment agent; the water treatment agent can be adsorbed on a metal surface to form a protective film and has good scale inhibition, corrosion inhibition and bacteriostasis performance. The water treatment agent can achieve the best scale inhibition and corrosion inhibition effect by controlling the polymerization degree. Meanwhile, the water treatment agent also has bacteriostasis performance and can inhibit escherichia coli which is a main pollution source of a water environment. Therefore, the water treatment agent realizes efficient improvement of scale inhibition, corrosion inhibition and bacteriostasis performance of polyaspartic acid, reduces application of phosphorus-containing compounds, avoids environmental hazards and is friendly to the environment.

The application provides a two-dosage-form copper etching liquid and a preparation method thereof, and belongs to the technical field of copper etching liquids, and comprises the following steps: mixing deionized water, ethylene glycol monobutyl ether and a hydrogen peroxide aqueous solution to obtain an A agent; mixing and reacting deionized water, a glucose acid aqueous solution, aminotri (methylenephosphonic acid), lactic acid, triisopropanolamine, gamma-glycidyl ether oxypropyl trimethoxysilane and aluminum lactate to obtain an aluminum-containing hybrid precursor; adding a first phosphoric acid aqueous solution, methanesulfonic acid and lactic acid into the aluminum-containing hybrid precursor, and then adding triisopropanolamine, a second phosphoric acid aqueous solution, 5-amino tetrazole and deionized water, and performing aging and filtration to obtain a B agent; and mixing the A agent, the B agent and deionized water to obtain the two-dosage-form copper etching liquid. The application can improve the storage stability, etching uniformity and copper surface flatness of the etching liquid.

The application discloses a solid preparation for dialysis and a preparation method thereof. The solid preparation comprises sodium chloride, potassium chloride, calcium chloride, magnesium chloride and a pH regulator. The sodium chloride is located in an inner layer of the preparation, the potassium chloride, the calcium chloride and the magnesium chloride are located in a middle layer of the preparation, and the pH regulator is located in an outer layer of the preparation. The pH regulator comprises glucose acid and sodium citrate. The three-layer design of the preparation not only solves the deliquescence problems of the calcium chloride and the magnesium chloride, but also solves the stability problem of the preparation. In addition, the porous sodium chloride with uniform granularity and porosity is used in the inner layer, so that the solid preparation with uniform granularity can be formed.

The purpose of the present invention is to provide a dispersion stabilizer for suppressing precipitation and aggregation of protein in an acidic condition, particularly in a pH range of 3.6-4.4 that is more acidic than around the isoelectric point of protein, and for providing an acidic protein beverage having a low viscosity and refreshing mouthfeel.　An acidic polysaccharide having a mass average molecular weight of 2,000,000-8,000,000 and containing 60% by weight or more of galactose, 20% by weight or less of uronic acid and 4% by weight or more of glucuronic acid as constituent sugars is extracted from lupin beans at pH 4-9 and a temperature above 100°C. The acidic polysaccharide can disperse and stabilize protein particles in a wide pH range, from pH 4.0-4.4, and particularly good ones from pH 3.6-4.4.

The invention discloses a preparation method of an anode catalyst coating film for hydrogen production by electrolysis of water, which comprises the following steps: adding a catalyst into water, carrying out ball milling dispersion, adding a second solvent, and carrying out ball milling dispersion to obtain a material; then adding the material into a perfluorosulfonic acid proton membrane solution, and carrying out ultrasonic dispersion to obtain a mixed solution; a third solvent is added into the mixed solution, slurry is obtained through ultrasonic mixing, and the third solvent is a mixed aqueous solution of a gluconic acid aqueous solution and ammonium oxalate; and finally, spraying the slurry to prepare a catalyst coating film, and flattening and cooking the catalyst coating film. According to the invention, by adding gluconic acid and ammonium oxalate and by means of ball-milling, cooking and leveling treatment processes, the porous anode catalyst coating film for hydrogen production by electrolysis of water, which is uniform in slurry dispersion, is finally obtained, and the coating film has no residue of ammonium oxalate or gluconic acid and has excellent mass transfer performance.

The invention belongs to the technical field of gene engineering, and discloses a gene engineering strain for de novo synthesis of NMN by using a mixed carbon source. The method comprises the following steps: performing overexpression on a glucose-6-phosphate 1-dehydrogenase gene, a 6-phosphogluconate dehydrogenase gene, an aspartate transaminase gene, a phosphoenolpyruvate carboxylase gene and a deletion glycerol kinase gene on E.coli N12, and performing overexpression on a point mutation glycerol kinase gene and a deletion glycerol dehydrogenase gene on the E.coli N12 to obtain E.coli N12-7; an expression vector is used for serially expressing a nicotinic acid nucleotide pyrophosphorylase gene, an NAD synthetase gene, a quinoline synthase gene and an aspartic acid oxidase gene, and a recombinant plasmid P-1 is introduced into E.coli N12-7 to obtain the recombinant protein. According to the present invention, the escherichia coli NMN anabolism is systematically modified to achieve the de novo synthesis of the NMN by using the glucose and the glycerol as the mixed carbon source, and other substrates do not need to be added during the fermentation process so as to save the fermentation cost;