68results about How to "Adapt to the needs of industrial production" patented technology

The invention discloses a method and application for synthesizing a cheap nickel-iron nanosheet array high-efficiency electrocatalyst at normal temperature and normal pressure, and relates to a methodand application for synthesizing the high-efficiency electrocatalyst. The method and application aim to solve the problems that an existing commercial oxygen evolution reaction catalyst is noble metal, high in price and poor in stability, the large-scale application is limited, the synthesis condition of an existing nickel-iron catalyst is rigorous, the process is complex, the cost is high, and the large-scale production and application of the nickel-iron catalyst are seriously restricted. The method comprises the following steps that 1, pretreatment is carried out on foamed nickel; 2, an iron solution is prepared; and 3, soaking is carried out so as to obtain the nickel-iron nanosheet array high-efficiency electrocatalyst. According to the method, the large-scale production can be achieved, the method can be used for producing the nickel-iron nanosheet array high-efficiency electrocatalysts with different specifications, is suitable for commercial application, and is more suitable for the requirements of industrial production. According to the method, the nickel-iron nanosheet array high-efficiency electrocatalyst can be obtained.

The invention discloses a cake dough improver, a mousse cake and a method for preparing the mousse cake. The cake dough improver is prepared from raw materials in percentage by weight as follows: 2%-5% of an alkaline leavening agent, 2%-6% of an acidity regulator, 0.01%-30% of an emulsifier, 0.01%-0.1% of enzyme and the balance of a dispersant. The mousse cake comprises cake dough and a mousse layer, wherein the cake dough comprises the cake dough improver; and the mousse layer comprises a cream frothing stabilizer and a thickening and emulsifying stabilizer. The cake dough improver is added to the mousse cake, so that after the cake dough is frothed, coated and baked, the mousse cake tastes soft and creamy and can be continuously preserved for 9 months or longer under freezing and refrigeration conditions. The cream frothing stabilizer and the thickening and emulsifying stabilizer are added to the mousse layer of the mousse cake, the mousse cake is kept stable under long-term refrigeration and freezing conditions, water-oil separation cannot occur easily, and the cake is ensured to still taste fresh and moist under the long-term freezing condition and have a longer guarantee period.

The invention provides an industrialized production method of cordyceps mushroom. The process of the invention comprises superior strain and liquid strain production, strain inspection, strain preservation, cordyceps mushroom culture equipment, culture medium formulary, culture medium preparation, culture medium subpackage, inoculation method, hairy fungus grass outgrowth management, collection and dry process, etc. The invention has the advantages that the technological innovation points are more, the invention is advanced and practical, the mechanization degree is high, and the invention is suitable for the scale and industrialized production. The selected superior strain has stronge prolificacy, the veraison is quick, and grass outgrowth is easy, the weed resistance and the stress resistance are outstanding, the invention is served with advanced liquid strain production equipment, semisolid culturemedium and case and bowl incubator, and other advanced production technologies, and can ensure the cordyceps mushroom which is a new member of the worm grass family to realize the high yield rate, the high quality and the high efficiency during the scale planting.

The invention discloses toe shoes. According to the toe shoes, plastic frameworks comprising plastic top caps and plastic sole plates are arranged in the toe shoes, wherein linear openings in the left and right directions are formed on the bottom faces of the plastic sole plates, and the positions of the linear openings correspond to the parts where the toes are connected with the arches; the openings are opened at the half-tiptoe state, and the openings are closed at the full-tiptoe state. The toe shoes are suitable for being applied to industrial production, and have proper hardness and comfortable level.

The invention relates to a preparation method of a macrocyclic chelating agent and an intermediate thereof, particularly to a preparation method of gadoteridol, gadobutrol and intermediates of gadoteridol and gadobutrol thereof. According to the method of the invention, high-purity t-Bu-DO3A can be simply and conveniently obtained from cyclen in one step, and gadoteridol or gadobutrol is obtainedthrough subsequent related reaction and purification; and the high purity of the final product is achieved by controlling the each link of the process so as to achieve the medicinal standard, the purification step of ion exchange chromatography is not needed, the operation is simple and convenient, the preparation is easy, the yield is high, and the method is particularly suitable for the requirements of industrial production.

The invention relates to a one-way bolt connection node between a rectangular steel pipe concrete column and H-type girders. The one-way bolt connection node comprises a rectangular inner partition plate, two girder-end extension end plates and two partition plate-end extension end plates, and is characterized in that the two partition plate-end extension end plates are fixedly connected with two ends of the rectangular inner partition plate and placed on the column wall inner side of the rectangular steel pipe concrete column; the two girder-end extension end plates are respectively and fixedly connected with end parts of the two H-type girders; a plurality of bolt holes are formed in the corresponding positions of the two girder-end extension end plates, the two partition plate-end extension end plates and the column wall; the girder-end extension end plates, the column wall and two partition plate-end extension end plates, which are located on the same side of the rectangular steel pipe concrete column, are fixedly connected through a plurality of one-way bolts. The node, disclosed by the invention, causes less destruction to the steel pipe column, improves the bearing capacity, is free of weld joint, and shows not obvious stress concentration phenomenon; furthermore, the node can enable the girder locating construction to be convenient, and facilitates factory-like prefabrication and field assembly, so as to increase the field construction efficiency.

The invention discloses a skin care composition and a preparation method thereof. The skin care composition comprises the following effective components in parts by weight: 1-5 parts of soluble collagen and 1-10 parts of a chimaphila umbellata leaf extract. The preparation method comprises the following steps: an extract preparation step: extracting dry chimaphila umbellata leaves with ethanol toobtain a filtrate, adding butanediol into the filtrate, and performing evaporating to obtain the chimaphila umbellata leaf extract; a mixing step: mixing 1-5 parts by weight of the soluble collagen and 1-10 parts by weight of the chimaphila umbellata leaf extract to obtain a skin care composition. In the composition, the chimaphila umbellata leaf extract can inhibit activity of collagenase, delaydecomposition of collagen and promote synthesis of collagen, so that the skin care composition is beneficial to delaying skin aging symptoms.

The invention relates to a preparation and quality detection method of traditional Chinese medicine extract, in particular to a preparation and quality detection method of amomum para-tsaoko total flavonoids extract. The method comprises the following steps: crushing and alcohol extracting dry fruits of amomum para-tsaoko, performing reflux extraction with methanol or ethanol, concentrating, adding water, mixing, suspending, eluting by using a macroporous adsorption resin column chromatograph (ethanol-water system), concentrating, vacuum drying, and obtaining the amomum para-tsaoko total flavonoids extract. The preparation method of the amomum para-tsaoko total flavonoids extract is reasonable, stable, short in production period, and suitable for industrialized production. The invention adopts an ultraviolet-visible light spectrophotometry, a high-performance liquid-phase chromatographic one-measuring multi-evaluation method and an area normalization method to determine the content of amomum para-tsaoko total flavonoids in the amomum para-tsaoko total flavonoids extract. The method is accurate, stable, and simple in operation. The amomum para-tsaoko total flavonoids extract prepared by the invention has pharmacologic actions such as inflammation resistance, bacterial resistance and the like.

The invention discloses a general flavone extract obtained by extracting, concentrating, separating and drying dried plant gangsong stems and leaves. According to the invention, general flavones are qualitatively discriminated by a thin-layer chromatography, and the content of gangsong general flavones is detected through an ultraviolet-visible spectrophotometry. The general flavone extract is accurate and stable in method, convenient to operate, and can be suitable for requirements of the industrial production, and can effectively control the quality of the gangsong general flavones. The gangsong general flavone extract provided by the invention is low in toxicity, and has the pharmacological effects of anti-inflammation, bacteriostasis, analgesia and the like; and furthermore, the gangsong general flavone extract is reasonable and stable in preparation method, short in production period, and suitable for industrial production. The gangsong general flavone extract has a good development foreground.

The invention discloses a preparation method of 7-hydroxy-4-methylcoumarin, comprising the following steps of: adding a certain amount of resorcinol, ethyl acetoacetate and catalyst in a flask, heat in the stirring state, filtering and removing the catalyst after the reaction is finished to obtain filtrate, evaporating and removing solvent and the excessive ethyl acetoacetate from the filtrate by using a rotary evaporator, dissolving crystals out to obtain a crude product, and recrystallizing the crude product by using 95 percent of ethanol to obtain white crystals. The process has the advantages of simple process and high efficiency and is suitable for actual production.

The invention discloses a hydrophilic modified polymer membrane. The hydrophilic modified polymer membrane is a flat sheet membrane with a porous structure and is mainly prepared through crosslinking from a polymer matrix and an amphiphilic ionizing and post-crosslinking hydrophilic copolymer, and the diameter of pores in the porous structure is in a range from nanoscale to micro scale. The invention further discloses a preparation method of the hydrophilic modified polymer membrane and an application of the hydrophilic modified polymer membrane as an oil-water separation membrane. Compared with a conventional oil-water separation membrane, the hydrophilic modified polymer membrane has the advantage that the oil-water separation flux and the antipollution property are greatly improved while excellent characteristics of the conventional oil-water separation polymer membrane are maintained; furthermore, the hydrophilic modified polymer membrane has the benefits that a preparation process is simple and controllable, preparation of a uniform and large-area amphiphilic ionic type polyelectrolyte modified porous polymer filter membrane with hydrophilicity, pollution resistance and oil-water separation capacity can be realized, the cost is low, and the hydrophilic modified polymer membrane meets the requirement of industrial production.

The invention relates to a quality detecting method for a traditional Chinese medicine extract, in particular to a quality detecting method for a desmodium styracifolium general flavone extract. The desmodium styracifolium general flavone extract is prepared through desmodium styracifolium smashing and alcohol or water extraction, ethyl alcohol recovery, concentration, macroporous adsorption resincolumn chromatography elution (ethyl alcohol-water system), concentration and vacuum drying. The preparation method of the desmodium styracifolium general flavone extract is reasonable, stable, shortin production period and suitable for industrial production. An ultraviolet-visible spectrophotometry method, a high efficiency liquid chromatography method and an area normalization method are adopted to determine the content of general flavone and schaftoside in the desmodium styracifolium general flavone extract, and the method is accurate, stable and simple in operation.

The invention relates to a nitrilase mutant and in particular relates to a nitrilase mutant and a coding gene thereof as well as application of the nitrilase mutant to preparation of optical activity 2-aryl propionic acid (2-APA). The mutant comprises an amino acid substitution on any one or more amino acid sites in an amino acid sequence shown as SEQ ID NO: 1, and the sites are 135, 41, 192 and 120. Compared with wild type nitrilase, the mutant has relatively high enzyme activity and / or stereoselectivity; according to the application of the nitrilase mutant to preparation of the optical activity 2-APA, the production cost can be reduced and the production efficiency can be improved when being compared with those of a chemical synthesis method; the requirements of industrial production are met.

The invention discloses a device for controlling the temperature of a mold. The mold is provided with a mold cavity and a mold frame. The device for controlling the temperature of the mold comprises an electric heating sheet, a temperature measurement element and a temperature controller, wherein the electric heating sheet is arranged in the mold cavity; the temperature measurement element is arranged in the mold cavity and used for measuring the temperature of the mold cavity; and the temperature controller is respectively connected with the electric heating sheet and the temperature measurement element to control heating of the electric heating sheet according to the temperature which is measured by the temperature measurement element. According to the device for controlling the temperature of the mold, the local quick temperature rising of a molding part of the mold can be realized, and the temperature range for operation of the mold is greatly expanded. The invention further discloses the mold having the device for controlling the temperature of the mold.

A hydrothermal synthesis of gadolinium-diethylentriaminepentaacetic acid is carried out by using gadolinium oxide and diethylentriaminepentaacetic acid, hydrothermal synthesizing, and obtaining gadolinium- diethylentriaminepentaacetic. It is an inorganic complex chemical synthetic technology. Its advantages include less impurities, high reacting speed and output efficiency.

The invention discloses a preparation method of a capsanthin feed additive with low dioxin content. According to the preparation method, commercially available capsanthin factice is further saponified, and then an acetone solvent is used for extracting, so that the dioxin content in the capsanthin factice is effectively reduced; and then the capsanthin factice and a feeding carrier are mixed uniformly, thus obtaining the capsanthin feed additive with low dioxin content. Therefore, the feeding safety of capsanthin can be improved. The preparation method fills up the research blank of the capsanthin feed additive with low dioxin content, is simple and effective and can adapt to demands of industrial production.

The invention discloses a preparation method for fermented rice row noodles and the fermented rice row noodles. The method comprises the following steps: mixing rice and water in a mass ratio of the rice to the water of 1:(1-1.5) to obtain a mixture of rice and water, performing heat preservation treatment at 25-30 DEG C for 3-5 h, performing heat preservation treatment at 35-40 DEG C for 3-5 h, and performing heat preservation treatment at 45-50 DEG C for 3-5 h to prepare a mixture of rice and water after heat preservation treatment; adding lactic acid into the mixture of rice and water afterheat preservation, adjusting the pH to 4.5-5.0, adding lactic acid bacteria, performing fermentation at 45-50 DEG C, washing rice, performing grinding to obtain pulp, performing plate-frame pressurefiltration on the obtained rice pulp, performing water washing for 2-3 times to obtain a filter cake, and performing drying to obtain special flour for the fermented rice row noodles; and adding waterinto the special flour for the fermented rice row noodles, corn starch and wheat starch, performing mixing, and performing processing to prepare the fermented rice row noodle product. The rice row noodle product has the advantages of good water reconstitution properties, a good appearance, rich elasticity, low cooking loss and a low breaking rate, has a special flavor of rice fermentation, and issuitable for industrial production.

The invention relates to a rhodium heterogeneous catalyst for carbonylation as well as a preparation method and application thereof. The catalyst is prepared from activated carbon with high specific surface as a carrier, rhodium as an active component and iridium or palladium or the like as a cotatalyst by using an improved vacuum impregnation method. When used for catalyzing a carbonylation reaction, the catalyst can still maintain good catalytic activity under the condition of increasing the raw material charging rate; for example, the charging rate of methanol can be 1-10 / h<-1> and is preferable 2-5 / h <-1>. Good catalytic activity ensures the charging rate of methanol, greatly increases the reaction rate of the catalyst and well adapts to the requirement for industrial production.

The invention provides a method for determining a content of taurine in a solution and a method for purifying the taurine. The method comprises the steps of determining the refractive index of a to-be-detected solution, wherein the to-be-detected solution contains taurine or salt thereof and impurities, and the impurities comprise at least one of ethylene glycol, sodium isethionate, sodium sulfate and polyethylene glycol; establishing a standard curve of the taurine concentration in the taurine solution based on the refractive index; and performing optical detection on the to-be-detected solution, and determining the content of the taurine or the salt thereof in the to-be-detected solution according to the position of the obtained optical detection value in the standard curve. Through the method, the content of taurine in various taurine solutions with complex components can be effectively detected.

The invention discloses a preparation method of a high-whiteness and high-toughness epoxy resin composite material, and belongs to the field of polymer composite materials. The method comprises the following steps: adding a liquid textile finishing agent-epoxy-terminated polyether polysiloxane as a flexibilizer into an epoxy resin composition, then adding a curing agent, and carrying out a curing reaction to obtain the epoxy resin composite material. According to the preparation method, the size of a nanophase formed in epoxy resin can be controlled by adjusting the lengths of polysiloxane and polyether chain segments in epoxy-terminated polyether polysiloxane, so that the toughening effect of the epoxy resin is regulated and controlled, liquid-liquid blending is performed in the preparation method, the system is obviously whitened and thickened due to the nano phase splitting effect, and thus, the high-whiteness epoxy resin composite material can be prepared. The method disclosed by the invention is simple to operate, green and environment-friendly, and can be used for large-scale production, so that the method has wide application prospects in the fields of building materials, aerospace, electronic packaging and the like.

The present invention discloses special powder for steamed vermicelli rolls and a preparation method thereof, and belongs to the technical field of food processing. The special powder for the steamedvermicelli rolls has a protein content of more than or equal to 5% and an amylose content of more than or equal to 22% on a dry basis. The special powder for the steamed vermicelli rolls comprises 60-90 parts of rice flour after enzymatic hydrolysis by protease, 10-40 parts of starch and 0.3-5 parts of an emulsifier. The steamed vermicelli rolls prepared by the special powder for the steamed vermicelli rolls is superior to the commercially available steamed vermicelli roll products by a traditional manufacture method. A used modifier can improve color and luster of the steamed vermicelli rolls. During use of the special powder for the steamed vermicelli rolls, only an appropriate amount of water is added, the special powder for the steamed vermicelli rolls is convenient to use, and the method for preparing the steamed vermicelli rolls by the special powder for the steamed vermicelli rolls is simple and quick, saves processes of soaking and grinding in a traditional preparation technology, and is high in production efficiency, adapted to needs of industrial production and adapted to a wide range of market circulation.

The invention relates to an esterase mutant and application thereof to preparation of optical active 2-aryl propionic acid (APA). The esterase mutant is obtained by carrying out amino acid mutation onone or more sites on the basis of SEQ ID NO:1; a mutation site is a 138th site and / or a 200th site. Compared with wild type esterase, the mutant has higher stereoselectivity on the basis of keeping thermal stability; compared with a chemical synthesis method, the application of the esterase mutant to the preparation of the optical active 2-APA has the advantages that the production cost can be reduced and the production efficiency is improved; the esterase mutant is adaptive to the requirements of industrial production.

The invention discloses a method for preparing a tanshinone IIA sodium sulfonate preparation by using a hydrotropic defoaming solvent. The method comprises the steps of: measuring the hydrotropic defoaming solvent in prescript amount and weighing water for injection which is 80% of prescript amount to a dosing tank, agitating and dissolving, adding tanshinone IIA sodium sulfonate, agitating till tanshinone IIA sodium sulfonate is completely dissolved; adding mannitol in prescript amount, agitating till the mannitol is completely dissolved, and adding water for injection to the prescript amount; adding active carbon and agitating, decarburizing by a titanium filter stick, adjusting pH by a hydrochloric liquid or a sodium hydroxide liquid, and filtering with 0.22 mu m millipore filter; and filling into an antibiotic bottle, freezing and drying to obtain a product. The alcohols solvent adopted has the main advantages of dissolubility in water, strong volatility and low toxicity and can serve as a latent solvent and a defoamer, and the crystalline state can be changed in the freezing process to form acicular crystals to facilitate sublimation of water, so that conduction in the freezing and drying process can be accelerated, the sublimation speed is improved, and nearly barely residues exist in a final product.

The invention relates to a preparation method and a quality detection method of lithocarpus polystachyus rehd total flavone extract. The preparation method of the lithocarpus polystachyus rehd total flavone comprises the following steps: drying leaves of lithocarpus polystachyus rehd, crushing, heating with methanol or ethanol for reflux extraction, concentrating, recovering methanol or ethanol, adding water into crude extract for suspension, performing macroporous adsorption resin column chromatography, eluting, concentrating and drying to obtain the lithocarpus polystachyus rehd total flavone. The preparation process of the total flavone extract in lithocarpus polystachyus rehd is researched, the quality standard of the total flavonoid extract in lithocarpus polystachyus rehd is researched, and a reference basis is provided for establishing the complete quality standard of lithocarpus polystachyus rehd and developing and utilizing resources in future. Pharmacological experiments prove that the lithocarpus polystachyus rehd total flavone extract prepared by the method has a good hypoglycemic effect and can be applied to preparation of hypoglycemic drugs.

The invention belongs to the technical field of biological engineering and relates to an improved specific activity mutant thermophilic thermophilic alkaline pectate lyase gene, engineering bacterium, enzyme and their application. The engineering bacterium is collected under CGMCC No. 11461, has a classification name Escherichia coli and is collected in China General Microbiological Culture Collection Center on 29th September, 2015. The invention mainly discloses a mutant thermophilic thermophilic alkaline pectate lyase, a most suitable reaction temperature is 70 DEG C, a most suitable Ca2+ concentration is 0.8 mM, a substrate is 0.2%(w / v) polygalacturonic acid, and pH is 9.5. This lyase has an enzyme specific activity of 5300 U / mg at pH 9.5 under Ca2+ 0.8 mM; the lyase has a half-life of 6 h at the held temperature of 70 DEG C; after the lyase is purified with nickel columns, CbPelC-CD is up to 40 mg / L (1L of fermentation liquor). The specific activity of the mutant thermophilic thermophilic alkaline pectate lyase is greatly improved with respect to a proenzyme CbPelC (900 U / mg), the lyase is more satisfactory to modern industrial production, and an effective method is also provided for the industrial large-scale production of alkaline pectinase.

The invention discloses a method for reducing the content of dioxin in capsanthin ointment. According to the method, the saponification and the solvent extraction are carried out on the commercially available capsanthin ointment to ensure that the dioxin content in capsanthin ointment products is effectively reduced and the content of capsanthin in the ointment basically remains unchanged at the same time, and therefore, the food safety is increased. The method disclosed by the invention is simple and effective and can be adapted to the requirements of industrial production.

A process for reclaiming high-temp liquid slag includes such steps as feeding the high-temp liquid slag in heater, serially connecting two plate electrodes by external water cable, electrically heating the slag to 1400-1700 deg.C and removing the water cable after the charge in heater becomes electric conductive. Its apparatus is composed of external liner, refractory corundum layer, cooling medium inlet and outlet, and plate electrodes.

The invention discloses a preparation method and application of low-cost high-purity polymelamine. According to the method, melamine is taken as a monomer, and polymelamine is prepared by adopting an oxidative polymerization method. According to the method, the production efficiency of the polymelamine is greatly improved, industrial production requirements are met, a large amount of electric energy does not need to be consumed, equipment such as an electrochemical workstation does not need to be used, expensive consumables such as electrodes do not need to be used, a preparation process is simple and convenient, and production cost is low. The obtained polymelamine is high in purity and has a crystal size of 3-10 [mu]m, so the density and mechanical properties of the polymelamine can be improved, the practical application range of the polymelamine in composite electrode materials, electronic devices and sensors is expanded, and the polymelamine has huge potential for achieving industrial production and good market prospects.

The invention relates to the field of molecular biology, and particularly relates to a chimeric enzyme, application thereof in-vitro one-step reaction synthesis of Cap0mRNA and a method. The method comprises the steps that the chimeric enzyme and an in-vitro transcription template are mixed and then subjected to a co-reaction, and a capped and tailed mRNA product is obtained through a one-step reaction, wherein the chimeric enzyme comprises an RNA polymerase structural domain and a capping enzyme catalytic structural domain, and the chimeric enzyme has the dual functions of in-vitro transcription and capping through chimeric design. The method for in-vitro one-step reaction synthesis of the mRNA is developed, and the synthesis efficiency and the mRNA yield are improved.