363 results about "Sodium citrate" patented technology

The invention belongs to the field of fermentation, and particularly relates to a complex microbial inoculant, original cheese, processed cheese with a blood sugar reducing function and preparation and application of the complex microbial inoculant. Wherein the processed cheese is prepared by the method comprising the following steps: mixing the components including raw cheese, sugarcane juice, corn oil, casein, concentrated milk protein, blueberry powder, mono / diglycerol fatty acid ester, sodium citrate, sodium tripolyphosphate, sodium hexametaphosphate, salt guar gum, potassium sorbate and water, and then emulsifying to obtain the processed cheese, the sugar cane juice, the corn oil, the casein, the concentrated milk protein, the blueberry powder, the mono / diglycerol fatty acid ester, the sodium citrate, the sodium tripolyphosphate, the sodium hexametaphosphate, the salt guar gum, the potassium sorbate and the water, the original cheese is prepared from a complex microbial inoculant, and the complex microbial inoculant comprises lactococcus lactis bacterial powder, lactococcus lactis subsp. Lactis bacterial powder, lactobacillus delbrueckii subsp. Lactis bacterial powder, lactobacillus plantarum bacterial powder and lactobacillus paracasei bacterial powder. The processed cheese provided by the invention has a better function of controlling blood sugar, and meanwhile, the processed cheese is fine and uniform in texture and has good smearing performance.

The invention discloses a preparation method of a slow-release solid preservative, and relates to the field of fruit preservation, and the preservative is prepared from the following raw materials in parts by weight: 5-8 parts of chitosan, 2-4 parts of carrageenan, 1-5 parts of sodium citrate, 2-3 parts of silicon dioxide, 3-4 parts of 1-methylcyclopropene, 2-3 parts of chlorine dioxide, 1-2 parts of water and 3-6 parts of baking soda. The preservation method of the slow-release solid preservative comprises the following steps: loading the solid preservative in a non-woven bag, placing the non-woven bag in a foam box or a packaging bag loaded with fruits, and sealing the foam box or the packaging bag. The baking soda in the preservative releases carbon dioxide, 1-methylcyclopropene and chlorine dioxide, and meanwhile, the physiological metabolism of the fruits and the generation of ethylene are effectively inhibited, and pathogenic bacteria are killed, so that the shelf life of the fruits is prolonged.

The invention discloses a method for preparing a sodium-rich boundary-rich iron-based prussian blue analogue (FePBA) through one-step hydrothermal synthesis assisted by sodium thiosulfate. The method specifically comprises the following steps: preparing a solution A and a Na4Fe (I I) (CN) 6 solution; the molar ratio of ferrocyanide to Fe ions in the solution B is 3: 4. And preparing a solution B to react with ferrocyanide to form FePBA. Adding sodium citrate to form a sodium and citrate-rich environment, then adding ferric iron salt, and fully stirring to chelate the added Fe < 3 + > with the citrate; and adding sodium thiosulfate after the step. Preparing a PVP (Polyvinyl Pyrrolidone) solution to play roles in dispersing FePBA and reducing agglomeration, and taking the PVP solution as a solution C; slowly dropwise adding the solution A and the solution B into the solution C at a constant speed by using a rubber head dropper to finally obtain a precursor solution, carrying out hydrothermal reaction for 6 hours at 110 DEG C, carrying out suction filtration on the obtained precipitate, and drying to obtain a FePBA sample. According to the invention, the time required for synthesis is greatly shortened, and the traditional coprecipitation of more than 24 hours is improved into rapid hydrothermal reaction of 6 hours.

The invention relates to an antibacterial and deodorant particle which comprises an active particle and a hydrophilic film wrapping the outer surface of the active particle. The active particles comprise the following raw material components in parts by weight: 15-20 parts of SEBS, 8-15 parts of silicon dioxide, 10-20 parts of sepiolite powder, 6-16 parts of an antibacterial agent, 2-5 parts of sodium stearate, 2-5 parts of sodium citrate, 5-10 parts of beta-cyclodextrin, 18-27 parts of an adhesive and 1-3 parts of an odor neutralizer; the hydrophilic film is formed by forming a hydrophilic material. According to the antibacterial and deodorant particles, SEBS serves as a hydrophobic elastic framework of active particles, and free diffusion of active ingredients in the particles is limited through hydrophobic entanglement of molecular chains; meanwhile, a hydrophilic material is used as an outer coating film, and the release rate of the active components is controlled by adjusting the interface action of the active particles and sewage, so that the antibacterial and adsorption deodorization active components in the antibacterial and deodorization particles are stably and slowly released; it is ensured that the efficient and long-acting antibacterial and deodorizing effect can be achieved for 14 days in complex water environments such as domestic sewage treatment.

The invention provides a dietary fiber anti-obesity and internal fat-reducing composition and a preparation method and application thereof, and the dietary fiber anti-obesity and internal fat-reducing composition comprises the following components in percentage by mass: a metabolic regulation formula which comprises 0.8-1.2% of mulberry leaf extract, 0.3-0.5% of potato extract, 0.2-0.4% of gamma-aminobutyric acid microcapsules and 4.0-6.0% of isomaltooligosacharide; the water management formula comprises 0.5 to 1.0 percent of opuntia ficus-indica powder and 0.2 to 0.4 percent of fructus gardeniae powder; the auxiliary regulation formula comprises the following components in percentage by weight: 2.0 to 4.0 percent of fructo-oligosaccharide, 0.05 to 0.15 percent of sucralose, 0.10 to 0.30 percent of xanthan gum and 0.05 to 0.15 percent of sodium citrate; and the nutrition fortification formula comprises 0.1-0.3% of taurine and 0.5-1.0% of a compound nutrition fortifier, and the compound nutrition fortifier contains vitamin B6 / B12, magnesium, iron and zinc. By constructing a fiber barrier-enzymolysis network-targeted metabolism three-in-one system, accurate reduction and control of visceral fat are achieved, fat oxidation combustion can be promoted, fat decomposition can be accelerated, fat accumulation can be reduced, and the method can be used for preparation of liquid beverages, preparation of powdery electuary and preparation of far infrared bagged powder solid beverages and has good application prospects. And the application scenarios are greatly increased.

The invention provides autologous platelet-containing plasma gel and a preparation method and application thereof, and relates to the technical field of biological medicine and tissue engineering.The preparation method comprises the following steps that peripheral venous blood of a patient is extracted and added into a centrifugal tube mixed with a sodium citrate anticoagulant; putting the centrifugal tube into a centrifugal machine for centrifuging, and taking upper-layer plasma; wherein the upper-layer plasma refers to plasma between the upper-layer liquid level and the lower-layer red blood cell layer by 1mm; the centrifugal speed ranges from 1300 r / min to 1700 r / min; the centrifugation time is 3-5 min; under a sterile condition, preparing a calcium gluconate / thrombin mixed solution; and dropping the calcium gluconate / thrombin mixed solution into the upper plasma, mixing, and solidifying to obtain the autologous platelet-containing plasma gel. After one-time centrifugation, upper-layer full-layer plasma is extracted, the volume of the prepared gel is far larger than that of a traditional method, the utilization rate of whole blood platelets and fibrinogen is close to 100%, and regeneration and repair of large-area tissue wounds can be met.

The invention discloses a water-based compensation sodium source sodium ion battery positive pole piece and a preparation method thereof. Mixing a positive active material, a conductive agent, a water-based binder, a water-soluble sodium supplement agent and a solvent to obtain positive slurry; wherein the water-soluble sodium supplement comprises sodium nitrite, sodium oxalate and sodium citrate; the solvent is water; and coating the surface of a current collector with the positive electrode slurry to prepare the positive electrode plate. Deionized water is used for replacing a traditional organic solvent to serve as a pulping solvent, and dual-function optimization is achieved by adding a specific water-soluble sodium supplementing agent. The sodium supplementing agent is uniformly distributed in the pole piece through a dissolution-recrystallization mechanism, and an efficient sodium ion pre-compensation system is formed. According to the method, the production cost and the energy consumption are remarkably reduced, the structural degradation of the positive active material in a water system environment can be effectively inhibited, irreversible sodium loss caused by formation of a first-week solid electrolyte interface (SEI) of a negative electrode is counteracted through a sodium source compensation mechanism, and the method has remarkable environmental friendliness and industrial application value.

The application discloses a composition for protecting liver and strengthening kidney and reducing uric acid, which is made of the following raw material components: Anoectochilus roxburghii, dried tangerine or orange peel, chicory, gardenia, turmeric, Hovenia dulcis Thunb, Cistanche deserticola Y.C.Ma, Rehmannia glutinosa, potassium citrate, sodium citrate and goose myo-peptide. The composition combines the immortal concept of TCM (Traditional Chinese Medicine) "treating disease from the root" and the uric acid control method of modern nutritional medicine as an organic whole, and achieves multiple effects of protecting liver and strengthening kidney, mutual benefit of yin and yang and reducing uric acid through multiple action targets. Animal experiment results show that the composition can effectively reduce the activities of transaminase ALT and AST, relieve liver damage, reduce serum creatinine level and improve urea ammonia excretion rate, improve kidney function, inhibit the activities of xanthine oxidase and adenosine dehydrogenase and reduce uric acid level. The composition is safe and has no toxic side effects, is suitable for people with insufficient liver and kidney functions and hyperuricemia and has a wide application prospect.

The invention discloses a wet tissue liquid for improving hemorrhoid symptoms, a wet tissue, a production method and application, the wet tissue liquid comprises asiaticoside, a sophora flower charcoal extract, bisabolol, a honeysuckle flower extract, a rosemary extract, ceramide NP, D-panthenol, potassium cocoyl glycinate, citric acid, sodium citrate and purified water, and the wet tissue comprises spunlace non-woven fabric. The wet tissue liquid is loaded on a non-woven fabric, the production process of the wet tissue liquid comprises a pretreatment stage, a preparation stage and a filtering stage, and the produced wet tissue liquid is applied to hygienic products for improving hemorrhoid symptoms. The sophora flower charcoal extract is used for the haemorrhoids wet tissue liquid to achieve the effects of stopping bleeding, cleaning and mildly easing pain; double natural extracts are compounded to replace preservatives, traditional single symptom relief is upgraded to symptom treatment, mucous membrane repair and barrier protection, disease deterioration and recurrence risks are reduced, and the composition is free of chemical preservatives, free of irritant surface activity and suitable for being used by people with hemorrhoid symptoms.

The invention discloses a fly ash washing dechlorination and resource utilization method. The method comprises the steps of fly ash pretreatment, size mixing treatment, enhanced washing and solid-liquid separation, filter cake treatment and mixed washing liquid purification and salt separation crystallization. Through a multi-dimensional synergistic strengthening means, the fly ash dechlorination efficiency is remarkably improved, resource utilization is achieved, the sodium citrate and lauryl sodium sulfate composite additive is adopted, Zeta potential real-time monitoring and pulse type supplementing are combined, fly ash particles are effectively dispersed, mass transfer resistance is destroyed, dissolution of chloride ions is promoted, and the dechlorination effect of the fly ash is improved. Moreover, gradient heating, electric field assistance and redox potential regulation are introduced, so that heavy metal dissolution is inhibited while efficient dechlorination is performed.

The invention belongs to the technical field of silicon material cleaning, and particularly relates to a silicon material cleaning agent and a preparation method and application thereof. The silicon material cleaning agent provided by the invention comprises the following components in parts by mass: 50-60 parts of water; 15 to 30 parts of an acidic etching solution; 10 to 20 parts of a first chelating agent; 10 to 20 parts of a second chelating agent; 0.5 to 5 parts of a surfactant; 5 to 15 parts of a builder; wherein the first chelating agent is selected from at least one of 1-hydroxyethylidene-1, 1-diphosphonic acid or ethylenediaminetetraacetic acid; the second chelating agent is selected from at least one of citric acid, gluconic acid, tartaric acid, malic acid, sodium citrate, sodium gluconate, potassium pyrophosphate and sodium pyrophosphate. The silicon material cleaning agent is used for silicon material cleaning, various metal ions can be cleaned at a time, the silicon material cleaning efficiency is improved, and the industrial cost is effectively reduced.

The invention provides a modified charcoal-based slow-release rare earth lanthanum soil conditioner and a preparation method thereof, and relates to the technical field of soil conditioners, the saline-alkali soil conditioner is used for reducing soil salinity and alkalinity, fixing heavy metals in soil, improving soil structure and slowly releasing rare earth elements into soil; the preparation method comprises the following steps: 1, preparing a rare earth lanthanum compound; modifying the biochar; a phosphate; dewatering the river sludge; an organic complexing agent; step 2, dissolving a rare earth lanthanum compound and an organic complexing agent in deionized water, and reacting to generate a complex solution; step 3, preparing modified biological carbon; step 4, loading lanthanum; and step 5, mixing the matrix to obtain the saline-alkali soil conditioner. Lanthanum nitrate and sodium citrate are converted into a complex solution, the lanthanum citrate complex has good stability, lanthanum can be effectively fixed in the solution in the form of the complex, the lanthanum is prevented from precipitating or losing in the subsequent treatment process, and the slow release effect of lanthanum is achieved.

The invention discloses a compound water retention agent for food and a preparation method of the compound water retention agent, and mainly relates to the technical field of food additives. Compared with the prior art, sodium tripolyphosphate and sodium dihydrogen phosphate are used as composite phosphates, and are matched with the coordination effect of the enzyme preparation, glycerol, microcapsules, sodium carbonate, sodium citrate, maltodextrin, protein additive and thickening agent to maintain high water-retaining property, elasticity and tenderness. According to the invention, microcapsules prepared by taking glucomannan and the like as wall materials, taking casein as an emulsifier and taking grease core materials are also added, when the meat food is subjected to deep-frying processing, grease slowly released by the microcapsules can permeate into a meat protein network to weaken the cross-linking strength among protein molecules, and other components such as xanthan gum, guar gum and the like are matched, so that the meat food has a good deep-frying effect. Therefore, the hardness of the meat product is reduced, and high elasticity and tenderness are kept.

The invention belongs to the technical field of bioengineering, and particularly relates to a microalgae alkali precipitation harvesting and re-culture utilization process which comprises the following steps: (1) adding an HEPES buffer solution into a microalgae culture solution to adjust the pH value of the microalgae culture solution to 7.5-8.0 to obtain a microalgae culture solution A; (2) adding a mixed solution of triethanolamine and sodium citrate into the microalgae culture solution A in the step (1) to adjust the pH value of the microalgae culture solution A to 8.0-9.0 to obtain a microalgae culture solution B; (3) adding an alkaline solution into the microalgae culture solution B in the step (2) to adjust the pH value of the microalgae culture solution B to 10.2-13.0 to obtain a microalgae culture solution C; and (4) standing and layering the microalgae culture solution C, discarding the supernatant, collecting the lower concentrated algae solution, transferring into the culture medium, and re-culturing. According to the microalgae alkali precipitation harvesting and re-culture utilization process, the microalgae culture process can be efficiently carried out, and the microalgae alkali precipitation harvesting and re-culture utilization process is suitable for various culture modes of autotrophy, heterotrophy and heterotrophy-autotrophy.

The invention relates to the technical field of soda wine preparation, in particular to a method and extraction equipment for preparing roselle soda wine from roselle extract.The method comprises the steps that dried roselle is subjected to low-temperature crushing and then extracted with an alcohol-water solution with the temperature controlled in stages, and a crude extracting solution is obtained; vitamin C and sodium citrate are compounded and stabilized, clarification and filtration are carried out, and a roselle extracting solution with stable color and flavor is obtained; and then scientifically blending with brandy base liquor, vodka, high fructose corn syrup, prebiotic syrup and other ingredients, finally carbonating with 0.5 volume of carbon dioxide at low temperature, and carrying out cold filling at the temperature of less than or equal to 4 DEG C to obtain a finished product. The problems that the extraction efficiency of natural flower raw materials is low, flavor and functional components are difficult to retain, and the fusion stability of an extract and a soda wine system is poor are effectively solved, and the comprehensive quality improvement that the product is outstanding in natural flavor, stable in color and luster, fine and lasting in bubble, healthy in function and good in drinking suitability is achieved.

The invention relates to the technical field of casting, in particular to a water-soluble salt core for aluminum castings and an injection molding preparation process thereof.The water-soluble salt core is composed of a heterogeneous layered composite material system, and the heterogeneous layered composite material system comprises an eutectic mixture formed by superfine monopotassium phosphate and sodium citrate and used as a base material, the nano palygorskite fiber is used as a reinforcing phase; the functional layer formed by the polyvinyl alcohol film is wrapped on the outer layer; and sodium bicarbonate; according to the water-soluble salt core for the aluminum casting and the preparation technology of the water-soluble salt core, through the improved raw material formula and the innovative preparation technology, the defects in the prior art are effectively overcome. In the aspect of a raw material formula, an eutectic mixture formed by superfine monopotassium phosphate and sodium citrate which are mixed in a specific proportion is used as a base material, and the eutectic mixture has good chemical stability and thermal stability and can provide basic strength and forming performance for the water-soluble salt core.

The present invention relates to the technical field of calcium carbonate preparation, specifically disclosing a method for preparing porous calcium carbonate with a high specific surface area. The method comprises: adding silicon dioxide to a sodium citrate solution and stirring to obtain solution A; adding polyethylene glycol to solution A, stirring at 70-85°C for 60-90 minutes, and cooling to obtain solution B; adding sodium bicarbonate to solution B and stirring to adjust the pH of the solution to 13; adding calcium chloride under ultrasound and mixing under ultrasound for 5-10 minutes; adding the obtained solution to a reactor, performing a hydrothermal reaction at 160-180°C for 5-7 hours, and centrifuging to obtain a solid; adding the solid to a sodium hydroxide solution, stirring and centrifuging at 80-95°C to obtain a precipitate; and washing and drying the precipitate to obtain porous calcium carbonate. The method for preparing porous calcium carbonate with a high specific surface area of ​​the present invention provides a porous calcium carbonate having a hollow structure, a high specific surface area, and good stability. The raw materials used in the preparation are all relatively inexpensive, commonly used, green, and non-toxic reagents, and the preparation process is simple.

The present invention provides low glycemic index (GI) total nutrition formula emulsion and a preparation method therefor. The low GI total nutrition formula emulsion comprises the following raw material components in parts by weight: 10-14 parts of carbohydrates, 4-5 parts of calcium caseinate, 1.3-2 parts of dietary fiber, 0.1-0.15 part of sodium chloride, 0.1-0.12 part of sodium citrate, 0.1-0.15 part of potassium citrate, 0.15-0.2 part of magnesium chloride, 0.1-0.15 part of dipotassium hydrogen phosphate, 0.05-0.1 part of compound vitamins, 0.05-0.1 part of compound minerals, 2.5-3.6 parts of compound oil, 0.3-0.5 part of phospholipid, 0.2-0.5 part of medium chain triglyceride (MCT), 0.04-0.08 part of colloids. The preparation method comprises: preparing aqueous phases and oil phases from the raw materials step by step; mixing the aqueous phases and oil phases; and shearing, homogenizing and sterilizing the mixture to obtain the low GI total nutrition emulsion. The product features balanced and complete nutrition.

The invention provides a resource recovery system and method for wastewater containing sodium citrate and sodium sulfate, and the system comprises a buffer mixing unit which is used for collecting wastewater and multiple paths of reflux liquid; the first nanofiltration assembly is used for preliminarily separating the mixed solution into a first concentrated solution enriched with sodium citrate and a first permeate enriched with sodium sulfate; the sodium citrate recovery branch is used for carrying out secondary concentration and evaporative crystallization on the first concentrated solution through a second nanofiltration assembly and a first crystallization unit so as to recover sodium citrate crystals or a high-concentration sodium citrate solution; the sodium sulfate recovery branch is used for carrying out concentration and freezing crystallization on the first permeate through a desalination concentration assembly and a second crystallization unit so as to recover sodium sulfate or mirabilite; and permeate liquid of the second nanofiltration assembly, mother liquid of the first crystallization unit and mother liquid of the second crystallization unit flow back to the buffer mixing unit. According to the invention, high-efficiency separation and high-purity recovery of two salt resources are realized, and the energy consumption is obviously reduced.

This invention discloses an integrated micro-aqueous degumming and peeling method for fresh coffee cherries, belonging to the field of fresh coffee cherry processing technology. The method includes: micro-aqueous degumming of fresh cherries using a pretreatment solution containing sodium citrate and sodium chloride; biological degumming using a specialized composite degumming enzyme composed of pectinase, cellulase, and calcium chloride; adding chitosan to the wastewater after rinsing for composite coagulation, followed by solid-liquid separation to obtain recycled water; and finally drying to obtain coffee beans in their shells. This invention utilizes sodium citrate to chelate calcium bridges to degrade the pectin cross-linking structure and sodium chloride to compress the double electric layer and reduce slurry viscosity, achieving efficient mass transfer and rapid degumming under micro-aqueous conditions. Furthermore, it utilizes residual salts to achieve pH anchoring and ionic strength regulation, promoting the formation of a dense aggregated phase between pectin degradation products and chitosan, solving the industry problems of difficult micro-aqueous system treatment and unstable recycled water reuse. This invention reduces water consumption by more than 90% compared to traditional washing methods, achieves thorough degumming, preserves the complete flavor of coffee beans, has low equipment costs, and enables sustainable closed-loop production, making it suitable for industrial application in small-scale coffee processing plants.

The invention discloses a stage targeting scallop adductor non-phosphorus water-retaining agent containing antifreeze glycopeptide and application, and relates to the technical field of food additives. The antifreeze glycopeptide-containing stage targeting scallop adductor phosphorus-free water-retaining agent consists of an agent A and an agent B, and does not contain phosphate additives, the agent A is permeable anti-freezing liquid and is prepared from the following components in percentage by mass: 5.0 percent to 9.0 percent of trehalose, 3.0 percent to 5.0 percent of sorbitol, 0.8 percent to 1.5 percent of sodium citrate, 0.4 percent to 1.0 percent of compound amino acid, 0.01 percent to 0.1 percent of high-activity anti-freezing glycopeptide, 0.01 percent to 0.05 percent of vitamin C, 0.01 percent to 0.05 percent of rosemary extract and the balance of water. According to the antifreeze glycopeptide-containing phase-targeting scallop adductor non-phosphorus water-retaining agent and the application thereof, ice crystal damage and protein denaturation are inhibited from the source, and cell-level protection of scallop adductors is realized. Through detection, the unfreezing loss rate of the treated scallop adductor is as low as about 2.12%, the cooking loss rate is as low as about 10.63%, and the water retention capacity is close to that of a commercially available phosphate water retention agent and is remarkably superior to that of an existing non-phosphorus water retention agent.

The invention relates to a preparation method and application of conductive adhesive hydrogel based on cyclodextrin, required components comprise a water-soluble adhesive, PEDOT: PSS, PVA and a water-soluble ionic conductive agent, and the water-soluble ionic conductive agent adopts one of NaCl, KCl or sodium citrate. The preparation method comprises the following steps: 1, adding the ionized water and the PEDOT: PSS dispersion liquid into a beaker, and uniformly stirring; 2, adding PVA, a water-soluble ionic conductive agent and a water-soluble adhesive into the mixed solution formed in the step 1, and standing to enable PVA particles to absorb water and swell; 3, stirring the mixed solution prepared in the step 2 under a heating condition to uniformly dissolve the components to obtain a precursor mixed solution of the hydrogel; and 4, performing freeze-thaw cycle on the precursor mixed solution obtained in the step 3 to form a stable physical cross-linked network, thereby obtaining the conductive adhesive hydrogel. The precursor mixed solution prepared by the invention has excellent printability, and the hydrogel formed after crosslinking simultaneously shows the characteristics of high conductivity, stable adhesion and low modulus.

The present invention discloses a composite preservative for refrigerated sea bass fillets and a comprehensive fresh-keeping and quality preservation method thereof. The raw materials of the composite preservative include 1-5% trehalose, 0.1-0.5% sodium citrate, 0.03-0.09% ginger extract, 0.3-0.9% D-sodium isoascorbate, 0.03-0.09% nisin, and 0.01-0.03% ε-polylysine in terms of mass percentage; the balance is water. The fresh-keeping and quality preservation method consists of the following steps: preparing and pre-cooling the composite preservative; soaking the treated sea bass fillets in the pre-cooled composite preservative; finally, draining the soaked sea bass fillets and bagging them, and then refrigerating them. The raw materials of the composite preservative of the present invention are natural, green and environmentally friendly, have good fresh-keeping and quality preservation effects, can extend the shelf life of refrigerated California sea bass fillets, and have an inhibitory effect on the oxidation of myofibrillar protein.

The application discloses a fluorine removal agent and a preparation method thereof, and relates to the technical field of fluorine removal agents, and comprises the following components in parts by weight: 5-10 parts of an aluminum salt, 5-10 parts of an iron salt, 15-20 parts of a rare earth material, sodium citrate and beta-cyclodextrin; the addition amount of the sodium citrate is 5%-10% of the total mass of the aluminum salt, the iron salt and the rare earth material; and the addition amount of the beta-cyclodextrin is 30%-50% of the mass of the sodium citrate. Through the introduction of the synergistic system of sodium citrate and beta-cyclodextrin, the metal ion precipitation sequence is regulated, meanwhile, the beta-cyclodextrin captures competitive anions through molecular recognition and constructs a hydrogen bond network to block interference, and the combination of the microsphere type and the porous particle type further realizes dynamic directional transmission of pollutants and nuclear pore limited crystallization, and the active site distribution is reconstructed at the molecular level, so that a technical scheme with universality, economy and reliability is provided for the treatment of complex fluorine-containing wastewater.

This invention discloses a cubic spinel-structured sulfide composite gas-sensitive material, a gas sensor, its preparation method, and its application, belonging to the field of gas sensor technology. The preparation method of this composite gas-sensitive material involves using FeCl2, CdCl2, and InCl3 as metal sources, and thiourea as a sulfur source, placing them together in a solvent of water, adding citric acid or sodium citrate as a dispersant, and obtaining a precursor material through a hydrothermal reaction. After calcination and annealing, a cubic spinel-structured FeIn2S4 / CdIn2S4 heterojunction material powder is obtained. The two gold electrodes and the ceramic tube of the gas sensor are coated with the cubic spinel-structured sulfide composite gas-sensitive material. The gas sensor based on this invention, made from a cubic spinel-structured sulfide composite gas-sensitive material, has a simple manufacturing process, low production cost, and is suitable for industrial mass production. It has broad application prospects in the field of acetone detection in trace hazardous situations.

The invention discloses acidulant-containing polyethylene glycol powder. The acidulant-containing polyethylene glycol powder comprises polyethylene glycol 3350, an anti-sticking agent, citric acid, sodium citrate, a sweetening agent and essence. According to the invention, one or more of polyethylene glycol, povidone and hydroxyethyl cellulose with the molecular weight of 3000-4000 Da are used as anti-sticking agents, and meanwhile, a partial one-step granulation method is used for solving the problem that the polyethylene glycol powder is easy to cake in the preparation and storage process of the product caused by the acidulant, so that the process feasibility and the product quality of the polyethylene glycol 3350 powder containing the acidulant are improved.

The invention discloses a preparation process of a high-stability dipyridamole sodium chloride injection. The preparation process comprises the following steps: S1, weighing raw materials and auxiliary materials: weighing 1g of dipyridamole, 90g of sodium chloride, 10-30g of sodium citrate and 30-70g of propylene glycol; s2, adding water for injection accounting for 70% of the prescription dosage into a liquid preparation tank, then adding sodium chloride, sodium citrate and propylene glycol accounting for the prescription dosage, and completely dissolving in a stirring state; s3, adding a proper amount of a hydrochloric acid solution, adjusting the pH value to 2.5, adding dipyridamole according to the prescription amount, and dissolving dipyridamole in a stirring state; s4, adding a proper amount of a sodium hydroxide solution, adjusting the pH value to 4.0, and fixing the volume to the prescription dosage by using the water for injection; s5, filtering the prepared solution, filling the filtered liquid medicine into a glass bottle, filling nitrogen into the bottle, plugging and capping; s6, sterilizing the filled sample; the stability of the prepared sample is obviously higher than that of a commercially available preparation, DP-II degradation impurities are avoided, obvious advantages are achieved, and the safety risk in the use process of the product can be obviously reduced.

The invention relates to an enzymolysis technology and a microwave-assisted extraction technology in a bioengineering technology, in particular to a method for extracting sika deer blood polypeptide through a microwave-assisted enzyme method and application of the sika deer blood polypeptide in anti-fatigue food. Treating the deer blood by using a composite anticoagulant containing sodium citrate, centrifuging, and freezing and thawing to obtain a lysate; carrying out microwave-assisted malic acid acidification, carrying out staged enzymolysis by using a compound enzyme composed of bromelain according to a ratio of 4: 3: 2, and introducing carbon dioxide to control the pH value; performing enzyme deactivation and centrifugal ultrafiltration to obtain a crude product, purifying the crude product through an ion exchange column and a gel column, and performing Maillard reaction modification with chitosan oligosaccharide; and finally preparing the anti-fatigue food with maltodextrin as an auxiliary material. According to the method, the yield of the sika deer blood polypeptide is greatly improved, the proportion of high-activity small molecule peptide is extremely high, the stability and bioavailability of the modified polypeptide are remarkably improved, and the bitter taste is reduced; the efficacy of the prepared anti-fatigue food is superior to that of similar products, and high-value utilization of deer blood resources is promoted.

The invention discloses protein soft sweets based on an olive pomace extract as well as a preparation method and application of the protein soft sweets. The protein soft sweets mainly consist of the following components in parts by mass: 10-50 parts of the olive pomace extract, 10-80 parts of collagen, 10-40 parts of gelatin, 1-20 parts of inulin, 1-10 parts of glucose syrup, 1-5 parts of malic acid and 1-5 parts of sodium citrate. The protein soft sweets based on the olive pomace extract have olive flavor, are amber, are crystal clear, glossy and rich in olive flavor before being sprayed with powdered sugar, and are moderate in viscosity, not sticky to teeth and good in elasticity and resilience after being sprayed with powdered sugar; the olive pomace extract prepared by the preparation method disclosed by the invention also has relatively high oxidation resistance, shows very high scavenging ability in the aspects of DPPH free radical scavenging ability and ABTS < + > free radical scavenging ability, has the free radical scavenging ability of the olive pomace extract, is beneficial to preventing oxidative damage and maintaining health, and can be used as an antioxidant functional food.

The invention discloses a PDE4B-targeted siRNA liposome nano-drug as well as a preparation method and application thereof, and belongs to the technical field of biological medicines and nano-drugs. The preparation method comprises the following steps: dissolving cholesterol, DLin-MC3-DMA, DOPE and DSPE-PEG2000 in absolute ethyl alcohol to serve as an ethyl alcohol phase; dissolving siPDE4B into a sodium citrate buffer solution to serve as a water phase; then, rapidly mixing the ethanol phase and the water phase through a microfluidic device; and carrying out PBS dialysis on the obtained mixture to promote liposome assembly and remove ethanol so as to obtain the PDE4B-targeted siRNA liposome nano-drug. Compared with the prior art, the preparation process is simple, large-scale preparation can be achieved, and the prepared nano-drug has an excellent anti-pulmonary fibrosis effect, is low in toxicity, can be administrated in an inhalable mode and can effectively restrain IPF.