58 results about "Amino acid solution" patented technology

The invention provides a wide pH applicable multi-biomolecule detection MOF probe, a preparation method, a detection method and application, the probe is an MIL-53 (Fe) (at) AA (at) EZ probe, and comprises a metal organic framework MIL-53 (Fe), amino acid and enzyme; the preparation method comprises the following steps: weighing terephthalic acid and ferric chloride hexahydrate, adding into N, N-dimethylformamide, mixing and stirring, pouring the mixed solution into a stainless steel autoclave, heating and reacting, naturally cooling to room temperature, centrifugally separating a product, and washing with N, N-dimethylformamide and absolute ethyl alcohol to obtain the metal organic framework MIL-53 (Fe). The preparation method comprises the following steps: mixing a metal organic framework MIL-53 (Fe) with an amino acid solution, and carrying out ultrasonic treatment and stirring to obtain an MIL-53 (Fe) coated AA solution; the method comprises the following steps: dissolving enzyme in an MIL-53 (Fe) (at) AA solution, uniformly mixing, stirring, centrifugally separating a product, taking precipitate, and drying in vacuum to obtain the MIL-53 (Fe) (at) AA (at) EZ probe. The pH application range is wide, one-step detection can be achieved, and the method has the advantages of being rapid in reaction, high in sensitivity, low in detection limit and easy and convenient to operate.

The invention relates to an amino acid-mediated coal-based solid waste negative carbon filling material and a preparation method thereof, and the method comprises the following steps: adding an amino acid aqueous solution as a fly ash activator and fly ash into a first-section mineralization reaction kettle, introducing CO2 to carry out mineralization reaction, separating slurry obtained by the first-section mineralization reaction to obtain fly ash mineralization residues, and adding the fly ash mineralization residues into the first-section mineralization reaction kettle; the filtrate is recovered to the first-section mineralization reaction kettle for cyclic utilization; adding the coal ash mineralization residues, coal gangue, cement, NaOH, glucose and water into a second-stage mineralization reaction kettle, and introducing CO2 gas for mineralization reaction to obtain the negative carbon filling material. The negative carbon filling material with high carbon sequestration amount and high solid waste mixing amount is prepared through two-stage mineralization reaction, and the material has good fluidity before solidification and certain compressive strength after solidification, and can meet the use requirements of mine filling; wherein the amino acid solution can play a role in leaching Ca < 2 + > / Mg < 2 + > ions in the fly ash, the transfer of protons and CO2 is enhanced, and the carbon sequestration effect is remarkable.

The invention discloses a natural gas hydrate generation accelerant containing amino acid and nano calcium carbonate as well as a preparation method and application of the natural gas hydrate generation accelerant, and belongs to the technical field of natural gas hydrates. The problems of low natural gas hydrate forming rate, low gas storage density, low natural gas recovery efficiency, poor environmental protection property and the like in the prior art are solved. The accelerant is obtained by taking a hydrophobic amino acid solution as a base solution, adding nano calcium carbonate into the base solution and adjusting or not adjusting the pH value. By regulating and controlling the type and the concentration of a base solution in the accelerant, the hydrate formation rate and the gas storage density are improved, and the induction time of hydrate generation is shortened; nanoparticles in the accelerant are small in particle size and large in specific surface area, so that disturbance and convective heat transfer of the accelerant are enhanced; in addition, the chemical components of the nanoparticles in the accelerant and the main component of the seabed sediment with a large amount of natural gas hydrate in the nature are calcium carbonate, the environmental risk is reduced, and the calcium carbonate and hydrophobic amino acid are wide in source and environmentally friendly.

The invention relates to the technical field of carbon black, in particular to a production process for improving conductivity of carbon black, which comprises the following steps: activating carbon black with carbon dioxide, then treating with nitric acid to obtain a porous carbon black material, treating the porous carbon black material with a mixed amino acid solution to obtain a carbon black material loaded with a mixed amino acid adsorption layer; then adding a silver nitrate solution, stirring and mixing, dropwise adding a sodium borohydride solution, controlling the reaction temperature and pH, and filtering, washing and drying after the reaction is finished, so as to obtain a high-conductivity carbon black product. By adopting the production process, the conductivity of the carbon black can be greatly improved.

The invention discloses modified activated carbon for indoor formaldehyde adsorption and a preparation method thereof. The method comprises the following steps: 1) preparing an amino acid solution; 2) dipping the activated carbon in an amino acid solution, carrying out ultrasonic oscillation for a certain time, and dipping for a preset time; 3) drying the impregnated activated carbon in a drying box; and 4) placing the dried activated carbon in a tubular furnace filled with shielding gas for high-temperature activation for 2-10 h. The high-temperature activation in the protective gas is beneficial to formation of micropores of the activated carbon, avoids the influence of air or oxygen on amino acid in the heating process, adsorbs the amino acid and derivatives thereof into the micropores formed by the activated carbon, greatly improves polarity modification of the activated carbon, increases effective oxygen-containing functional groups on the surface of the activated carbon, and improves the adsorption capacity of the activated carbon. The adsorption capacity of the activated carbon on formaldehyde polar molecules is enhanced, and the chemical adsorption effect on formaldehyde can be further promoted on the basis of physical adsorption of the activated carbon.

The invention relates to a method for increasing folic acid content of wheat malt seedlings through ultrasonic field and amino acid solution treatment, which belongs to the technical field of agricultural food biology and is characterized in that wheat grains with high germination rate are used as raw materials, and the wheat malt seedlings are cultivated through soaking disinfection, amino acid solution dipping and ultrasonic field treatment and regulation and control of illumination, temperature, humidity and CO2 concentration. And drying and crushing to obtain the wheat malt seedling powder rich in folic acid. According to the method disclosed by the invention, the permeability of cell membranes is enhanced by utilizing an ultrasonic cavitation effect, folic acid precursor absorption and synthetase activation are promoted, the folic acid content in the wheat malt seedlings is effectively increased, and the wheat malt seedling powder with the folic acid content of 450-550mu g / 100g is obtained.

The utility model relates to solid-liquid separation membrane equipment for extracting amino acid by a hydrolysis method, which comprises a rack, the washing assembly comprises sliding rails symmetrically and fixedly arranged on the two sides of the rack, a sliding block capable of moving along the sliding rails is installed on the sliding rails, a water storage tank is fixedly arranged on the other side face of the sliding block, and a plurality of water supply pipes are fixedly installed on the top face of the water storage tank; a spraying head over against a plate frame of the plate-and-frame filter press is fixedly arranged on the inner circumferential surface of the water supply pipe; the moving assembly comprises racks symmetrically and fixedly arranged on the two sides of the rack, a rotary power mechanism is installed on the side wall of one water storage tank, and a driven gear shaft is installed on the side wall of the other water storage tank; water flow flushing is adopted to replace a traditional filter cake pressing link, tedious steps such as air inflation, pressure maintaining and plate frame pulling are omitted, time consumed for solid-liquid separation of the same batch of amino acid solutions is greatly shortened, the production rhythm is accelerated, and the overall production efficiency is improved.

The present invention relates to glucose solutions for parenteral administration comprising glucose and a pharmaceutically acceptable form of iron, as well as to containers comprising, in separate chambers, said glucose solutions and a lipid emulsion for parenteral administration and / or an amino acid solution for parenteral administration.

This invention relates to a dual-mode chiral sensing platform, its preparation method, and its application for identifying amino acid enantiomers, belonging to the field of electrochemical sensing technology. The preparation method includes the following steps: preparing an MXene-gold nanoparticle-N-acetyl-L-cysteine ​​chiral solution; preparing an MXene-gold nanoparticle-N-acetyl-L-cysteine / L(D)-amino acid solution; preparing an MXene-gold nanoparticle-N-acetyl-L-cysteine ​​modified electrode; electrochemical chiral recognition of amino acid enantiomers; and temperature-based chiral recognition of amino acid enantiomers. This invention utilizes MXene, a two-dimensional nanomaterial with excellent conductivity and photothermal conversion capabilities, as a carrier to in-situ load gold nanoparticles. N-acetyl-L-cysteine ​​containing a thiol group at the end is captured through Au-S bonds. This chiral material can achieve chiral recognition of amino acid enantiomers through both electrochemical and temperature-based chiral sensing modes.

This utility model relates to the field of rapeseed oil production technology, specifically to a quantity control device for adding amino acid ingredients in rapeseed oil production. It includes a storage cylinder with a slidingly fitted pusher inside, which divides the storage cylinder into a liquid chamber and a gas chamber from bottom to top. Multiple discharge nozzles are located at the bottom of the storage cylinder, each with a discharge hole in the center, connected to the liquid chamber. Air vents are located on the top wall of the storage cylinder, connected to the gas chamber. An air pump is located on one side of the storage cylinder, connected to the air vents via a pipe, on which a volumetric flow meter is installed. The device also includes a microprocessor, with the air pump and volumetric flow meter electrically connected to it. This utility model solves the technical problem in the prior art where the high viscosity of the amino acid solution causes it to easily adhere to the conveying pipe, resulting in a large deviation between the actual and set amount of amino acid added.

The application discloses a tobacco extract preparation method, which comprises the following steps: (1) one-time feeding: preparing a carbonated salt-amino acid mixed aqueous solution, uniformly applying the mixed aqueous solution to tobacco raw materials, and standing at room temperature; (2) drying: performing heating treatment on the tobacco raw materials after feeding, and drying; (3) secondary feeding: uniformly applying a polyol to the dried tobacco raw materials; (4) extrusion: performing extrusion and puffing treatment on the tobacco raw materials after feeding, and obtaining treated tobacco raw materials; and (5) extraction: performing extraction and separation on the treated tobacco raw materials, and obtaining a tobacco extract. The carbonated salt-amino acid solution can improve feeding uniformity, improve the pH of the system to reduce nicotine, drying is beneficial to subsequent reactions, the polyol improves material fluidity and prevents extrusion die blockage, extrusion and puffing high-temperature and high-pressure degrade macromolecules, and the tobacco aroma is improved. The extract can be used for heat cigarettes, the aroma is richer, and the odor and irritability are obviously reduced.

The invention discloses an organic water-soluble fertilizer for improving plant immunity and a preparation method thereof, and relates to the technical field of plant fertilizers. The fertilizer comprises the following components: keratin hydrolyzed amino acid liquid, a sugar alcohol calcium solution, disodium octaborate tetrahydrate, a glycine boric acid compound, zinc sulfate heptahydrate, sodium molybdate dihydrate, an echinacea extract, hydroxypropyl-beta-cyclodextrin, chitosan oligosaccharide, sodium alginate and polyglutamic acid. The preparation method comprises the following steps: firstly, inclusion of an echinacea purpurea extract with hydroxypropyl-beta-cyclodextrin to form an echinacea purpurea-cyclodextrin mixed solution; then, zinc, molybdenum and the keratin hydrolysis amino acid liquid are chelated step by step, and a Zn-Mo-amino acid compound is formed; sequentially adding sugar alcohol calcium and a composite boron source, finally mixing with a colloidal network constructed by chitosan oligosaccharide, sodium alginate and the like, adjusting the pH value, and then homogenizing and filtering. Through organic chelation and molecular inclusion technologies, the immunologic function and stability are improved, and the disease incidence rate is effectively reduced.

The application belongs to the field of biochemical synthesis instruments, and discloses a 96-channel synthesis instrument and a control method thereof. The instrument comprises a body, a synthesis operation cavity and a reagent storage and transportation cavity which are arranged in layers and are isolated from each other inside the body, a mechanical arm and a pipettor which are capable of multi-axis movement are arranged in the synthesis operation cavity, and amino acid bottles are arranged in an array. The core structure is a rotary feeding mechanism, 96 reactors which are uniformly distributed in a circle are arranged on the periphery of a rotary feeding disc of the rotary feeding mechanism through quick release mechanisms, a liquid adding tower is fixed above a corresponding liquid adding station, and the liquid adding tower is used for adding solvents or activating reagents to the reactors in a quantitative manner. The mechanical arm is responsible for the preparation and transfer of amino acid solutions, and the liquid adding tower is responsible for batch solvent treatment. The rotary feeding mechanism, the mechanical arm and the liquid adding tower are cooperated to realize efficient division of labor and parallel synthesis. The application has a compact structure, and the design of combination of rotary feeding and fixed liquid adding significantly improves the synthesis efficiency, operation stability and maintenance convenience.

The invention discloses an amino acid water-soluble fertilizer containing gamma-aminobutyric acid (GABA) and a preparation method of the amino acid water-soluble fertilizer, and belongs to the technical field of fertilizers. The preparation method comprises the following steps: mixing a GABA fermentation solution serving as a substrate solution with amino acids such as arginine and glycine to obtain a compound amino acid solution, chelating trace elements with EDTA (Ethylene Diamine Tetraacetic Acid) to obtain a chelated mixed solution, and mixing the compound amino acid solution and the chelated mixed solution to obtain the uniform and stable amino acid water-soluble fertilizer containing GABA. Through comprehensive proportioning, the amino acid water-soluble fertilizer can accurately meet the differentiated nutrient requirements of crops in the whole life cycle from germination, growth to maturation, it is ensured that optimal nutrient supply is obtained in each key stage, the amino acid fertilizer can rapidly supply nutrients, and the amino acid water-soluble fertilizer has wide application prospects.

An MoVTeNbOx-based metal oxide molded catalyst, and a molding method therefor and the use thereof. The molding method comprises the following steps: A) mixing an MoVTeNbOx-based metal oxide raw powder catalyst, an inert substance and a sesbania powder, performing kneading, and sequentially spraying an alkaline amino acid solution, an acid solution and a halogen compound solution during the kneading process to obtain a kneaded material; B) performing extrusion molding on the kneaded material, and drying same to obtain a catalyst blank; and C) roasting the catalyst blank to obtain an MoVTeNbOx-based metal oxide molded catalyst. By introducing an alkaline amino acid, the secondary pore structure of the catalyst is optimized, and the selectivity is greatly improved. In addition, a trace amount of a halogen is introduced as an inhibitor, and the addition of the alkaline amino acid and the inhibitor makes the MoVTeNbOx catalyst have an acrylic acid selectivity of 80% or more, thereby greatly reducing the generation of by-products.

This invention provides an amino acid-activated ice capable of easily and quickly generating gas hydrates, a method for generating the same, and a gas hydrate using amino acid-activated ice, as well as a method for generating the same. [Solution] The amino acid-activated ice is made by freezing an aqueous amino acid solution containing hydrophobic amino acids and dissolved CO2 gas. The concentration of amino acids in the aqueous amino acid solution containing hydrophobic amino acids may be in the range of 0.01 wt% to 2.0 wt%. The hydrophobic amino acid may be any one of leucine, methionine, glycine, phenylalanine, tryptophan, and histidine.

The utility model provides an amino acid purification device, which relates to the technical field of amino acid processing, and comprises a cylinder body, the top of the cylinder body is fixedly connected with a cover plate, the bottom of the cylinder body is fixedly connected with a support plate, the inner surface of the support plate is fixedly connected with a rotating motor, and the output end of the rotating motor is fixedly connected with a screw rod. According to the crystal cleaning device, a rotating motor is started, under the action of a lead screw and a guide rod, a lifting plate and a connecting pipe move downwards, a scraping ring is driven to move downwards along the interior of a barrel body, crystals adhering to the inner wall are scraped, meanwhile, when the scraping ring moves downwards, a water pump can continuously pump out cleaning liquid in a water tank, and therefore the crystals are cleaned. The cleaning liquid is conveyed into the scraping ring through the hose and the connecting pipe, so that the cleaning liquid is uniformly sprayed to the inner wall of the barrel through the inclined holes to assist the scraping ring in removing residual crystals, the crystals are prevented from being left on the barrel, good conditions are provided for subsequent crystallization treatment of the amino acid solution, and the treatment efficiency is improved.

This invention discloses a parenteral nutrition solution preparation and delivery device, comprising a first mixing component, a second mixing component, a third mixing component, a secondary mixing chamber, a transfer chamber, a tertiary mixing chamber, and a frame. The first mixing component mixes phosphate-free electrolytes, water-soluble vitamins, and trace elements into a compound amino acid solution. The second mixing component mixes phosphates into a glucose solution. The third mixing component mixes fat-soluble vitamins into a fat emulsion. The secondary mixing chamber further mixes the mixed amino acid solution and the mixed glucose solution. The transfer chamber agitates the mixed solution to ensure thorough mixing. The tertiary mixing chamber adds the fat emulsion containing fat-soluble and water-soluble vitamins to the amino acid and glucose mixture. This device, through the coordinated operation of its components, enables the rapid and accurate preparation of large quantities of parenteral nutrition solution, and the preparation process is carried out within a sealed container, preventing contamination of the nutrient solution by the external environment.

The invention belongs to the technical field of cosmetics, and particularly relates to anti-aging essence containing rumex hanus micromolecule polypeptide and amino acid. According to the essence, the rumex hanus micromolecule polypeptide and the amino acid freeze-dried powder are added, so that the effects of resisting oxidation, promoting cell proliferation and improving the skin state are achieved. The micromolecule polypeptide and amino acid freeze-dried powder is prepared from micromolecule polypeptide and an amino acid solution through freeze-drying, the micromolecule polypeptide and amino acid solution obtains specific peptide fragments through a gradual enzymolysis mode of protein contained in rumex hanus and by controlling the pH value and the enzyme type, and the micromolecule polypeptide and amino acid freeze-dried powder is obtained through freeze-drying. Therefore, efficient enzymolysis is realized, a specific peptide fragment is obtained, and the purity of a product is improved; through enzymolysis in different stages, the method not only has a safe and reliable production principle, but also improves the yield of rumex hanus micromolecule polypeptide, and solves the technical problem that cosmetic protein raw materials are difficult to transdermal.

The application belongs to the technical field of cosmetics, and particularly relates to a preparation method of a small molecule polypeptide of a leaf-eating plant and an amino acid solution and application thereof. The method obtains specific peptide segments by gradually enzymatically digesting proteins contained in the leaf-eating plant and by controlling pH values and enzyme types, so as to realize efficient enzymatic digestion and improve the purity of products, thereby laying a foundation for the application of the products in the field of cosmetics. The method of the application not only has safe and reliable production principles, but also improves the yield of the small molecule polypeptide of the leaf-eating plant, and solves the technical problem that cosmetic protein raw materials are difficult to penetrate the skin.

The invention discloses a preparation method and application of a bionic cerium-based metal organic framework nano-enzyme for an antifouling coating, and belongs to the technical field of antifouling coating functional materials, a metal salt solution and an amino acid solution are uniformly mixed and then subjected to a solvothermal reaction, and the bionic cerium-based metal organic framework nano-enzyme for the antifouling coating is obtained after washing and drying. The preparation method comprises the following steps: S1, preparing a metal salt solution; s2, preparing an amino acid solution; s3, preparing a complexing solution; s4, performing solvothermal reaction; and S5, washing and drying. The bionic cerium-based metal organic framework nano-enzyme for the antifouling coating prepared by the invention solves the problems of insufficient catalytic activity, poor specificity, single function and poor antifouling and anticorrosion synergistic effect, and the marine antifouling coating prepared by the nano-enzyme can effectively inhibit bacterial reproduction and microbial attachment, and has good biocompatibility. The nano-enzyme and the coating thereof have application potential in preparation of marine environment antifouling and anticorrosion and biomedical antibacterial materials.

This invention relates to the field of carbon black technology, and more particularly to a production process for improving the conductivity of carbon black. The process includes: first, carbon black is activated with carbon dioxide, then treated with nitric acid to obtain a porous carbon black material. This porous material is then treated with a mixed amino acid solution to obtain a carbon black material loaded with a mixed amino acid adsorption layer. Next, silver nitrate solution is added, and the mixture is stirred and mixed. Then, sodium borohydride solution is added dropwise, controlling the reaction temperature and pH. After the reaction is complete, the mixture is filtered, washed, and dried to obtain a highly conductive carbon black product. Using this production process can significantly improve the conductivity of carbon black.

The invention provides a composition, a biostimulant and application of the biostimulant, and the composition comprises an acetoin aqueous solution, 2, 3-butanediol, tetramethylpyrazine and phenylalanine. According to the composition provided by the embodiment of the invention, efficient and stable targeted color change is realized through triple synergistic effects of signal transduction (acetoin and 2, 3-butanediol)-metabolic regulation (tetramethylpyrazine)-precursor supply (phenylalanine), and meanwhile, the color change effect of the composition is improved. The biostimulant containing the composition and the peptide amino acid liquid can be applied to a plurality of stages such as a post-transplanting stage, a pre-flowering stage, a fruit setting stage, a fruit swelling stage and a color changing stage, so that stable transition and synergistic promotion of crops from vegetative growth to reproductive growth are effectively realized, flower promotion, fruit retention, fruit swelling and color changing are comprehensively realized, furthermore, yield increase and advanced harvesting of the crops can be realized, and the economic benefit of the crops is increased. Meanwhile, the raw materials for improving the sweetness and the vitamin content of the fruits are easy to obtain, the preparation method is simple, industrialization is easy to achieve, and high use value is achieved.

The utility model discloses a liquid material refining reaction device which comprises a reaction liquid preparation unit and further comprises a material refining unit connected with the reaction liquid preparation unit. The first supply unit is used for supplying a reaction solvent to the material refining unit and is connected with the material refining unit; the second supply unit is used for supplying hydrochloric acid to the material refining unit and is connected with the material refining unit; the cooling unit is used for cooling the material refining unit in the reaction process and is connected with the material refining unit; and the gas suction unit is used for sucking gas generated in the reaction process of the material refining unit and is connected with the material refining unit. According to the utility model, refined amino acid solution can be obtained.

The invention relates to the technical field of protein production, and discloses an anti-stress protein production device which comprises a tank body, a plasma mechanism is arranged outside the tank body, a stirring mechanism is arranged above the tank body, and a heating mechanism is arranged outside the tank body; the plasma mechanism comprises an air inlet cover, the right side face of the air inlet cover penetrates into the tank body, two microporous filter plates are clamped in the air inlet cover, the bottom face of the air inlet cover fixedly communicates with a connecting frame, an anode and a cathode are fixedly embedded in the inner side wall of the connecting frame, and an air pump is arranged below the connecting frame. According to the anti-stress protein production device, the nano-scale synergistic effect of plasma is utilized, the chelating and enriching efficiency of organic microelements is improved, an ionic amino acid solution is formed in the tank body, the hydrolysis efficiency of the anti-stress protein production device is effectively improved, the animal viscera hydrolysis period of the protein production device is shortened, and the production efficiency of the protein production device is improved. The effect of improving the protein amino acid production efficiency of the anti-stress protein production device is achieved.

The utility model relates to an ammonia water loading crane pipe, which belongs to the technical field of ammonia water loading, has the advantages of simple integral structure, convenience in conveying liquid ammonia into a tank car, high use flexibility, convenience in recycling residual liquid ammonia in the pipe and prevention of environmental pollution caused by discharge of the residual liquid ammonia in the pipe into the air compared with the prior art, and good practicability. The device comprises a base, the supporting column is fixedly connected to the base, two connecting blocks are fixedly connected to one end of the supporting column, and a connecting shaft is rotationally arranged between the connecting blocks; the connecting plate is fixedly connected to the connecting shaft, the other end of the connecting plate is fixedly connected with a crane pipe main body through a connecting seat, and an adjusting valve is arranged on the crane pipe main body; the connecting pipe is communicated with the crane pipe body, the other end of the connecting pipe is communicated with a conveying pipe, an electromagnetic valve is arranged on the conveying pipe, and a rotating connector is arranged at one end of the conveying pipe.

The application provides a preparation method of melamine resin foam and belongs to the technical field of organic polymers. Melamine, polyformaldehyde, an amino acid solution and sodium hydroxide are used as main materials of the resin, specific comonomers are added, pre-polymerization is carried out, then sodium alkyl benzene sulfonate and the amino acid solution are added, additional nanoparticles are added for re-polymerization, then a combination of sodium alkyl benzene sulfonate, n-pentane and formic acid is added as a mixed additive for microwave foaming, and finally melamine resin foam is obtained, which has good mechanical properties.

The invention relates to a special microbial agent fertilizer for pogostemon cablin and aims to solve the problems of soil micro-ecological imbalance caused by abuse of chemical fertilizers and loss of activity of a biological agent under a low-temperature condition in traditional planting. According to the core technical scheme, an active carrier capable of synergistically activating physiological metabolism of crops is formed by optimizing the compounding proportion of water, chitin liquid, mineral source potassium fulvate, compound fertilizer, brown sugar, trehalose, amino acid liquid, lactobacillus plantarum liquid, enzyme liquid and baking soda powder; stable colonization of the flora under complex field conditions is ensured by combining low-temperature activity threshold control at the temperature of more than or equal to-5 DEG C and a 200-time well water / tap water dilution process; the herbicide / insecticide application isolation period and the rain wash supplementary application mechanism are strictly limited, and interference inhibition of agricultural operation on the fungicide is eliminated. According to the technology, the yield of pogostemon cablin and the content of effective components are remarkably increased, and the application boundary of a microbial agent in a temperate zone medicinal material planting area is expanded.

The application discloses a method for separating mixed amino acids by using an ion rectification system, wherein the pH of a mixed amino acid solution is regulated according to the isoelectric points of two amino acids in the mixed amino acids, the overall charge type ions of the two amino acids in the mixed amino acids are determined, and then the selective coefficients of the two amino acids are gradually improved by using corresponding ion rectification systems. The method can realize high-selectivity separation of various types of mixed amino acids, especially high-selectivity separation of mixed amino acids with similar isoelectric points, similar structures, similar molecular weights and / or the same charge amounts, and provides an innovative method for separation of mixed amino acids, which is expected to shorten the subsequent separation and purification process route in the production process of amino acids, reduce the production cost of amino acids and improve the product quality of amino acids.

The present invention relates to lipid emulsions for parenteral administration comprising an oil phase and a pharmaceutically acceptable form of selenium, as well as to containers comprising, in separate chambers, said emulsions and an amino acid solution for parenteral administration and / or a glucose solution for parenteral administration.