35 results about "Sodium citrate" patented technology

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.

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.

This invention relates to a method for preparing a biomass-based biodegradable dust suppressant and a spraying device, comprising the following components by weight percentage: 0.78% biomass matrix, 20.7% salt-precipitating solution, and the remainder being an acetic acid solution diluted with deionized water. The specific steps are as follows: adding biomass matrix powder to the acetic acid solution; pouring the salt-precipitating solution powder into the biomass matrix acetic acid solution; magnetically stirring for 30 minutes at 200 r / min and 30°C; and then sonicating for 10 minutes to ensure a complete reaction. This invention combines salt-precipitation with dust suppression technology, using high-concentration salt solutions such as sodium citrate and sodium sulfate. Utilizing the physicochemical interaction between salt ions and biomass material molecules, and through the synergistic effect of salt-precipitation-assisted precipitation and weak ion cross-linking, it breaks the limitations of traditional cross-linking methods, promoting the rapid formation of a three-dimensional network structure, thereby constructing a high-strength hydrogel membrane. This method allows for the simple and convenient preparation of a long-lasting and safe dust suppressant, effectively improving dust suppression efficiency and reducing dust suppression costs.

The application discloses a preparation method of a cactus and orchid seed composite beverage and belongs to the technical field of health food processing. The method is designed according to a standardized industrial formula with cactus and orchid seed as core raw materials, and is matched with Dendrobium candidum, white granulated sugar, erythritol and other auxiliary materials. Pure oxygen-free water is used as a solvent throughout the process. A pH 3.5 stable buffer system is constructed by compounding sodium citrate and citric acid. The fine filtration after low-temperature centrifugation is replaced by industrial filtration with an 80-100 mesh filter screen. The finished product is prepared by combining the whole low-temperature treatment and HPP ultra-high pressure cold sterilization process. The oxygen-free pure water effectively avoids the oxidation loss of active ingredients, and the whole low-temperature and HPP process realizes the efficient retention of active ingredients such as cactus SOD, flavonoids and polysaccharides. Meanwhile, the problems of unstable pH, low industrial filtration efficiency and easy stratification and precipitation of the traditional cactus beverage are solved. The finished beverage has a refreshing taste, a sweet and sour coordination and strong stability.

This invention belongs to the field of oral care products technology, specifically relating to an oral care composition with long-lasting breath freshening and fluoride stabilizing effects, and its preparation method. The oral care composition includes hydroxyapatite and zinc citrate trihydrate, which synergistically enhance the adsorption effect on bad breath, thereby eliminating oral halitosis. The composition also includes sodium citrate and fluoride. The addition of sodium citrate increases the solubility of zinc citrate trihydrate and adjusts the pH of the system, resulting in a system with both strong adsorption of bad breath and the ability to maintain the stability of soluble fluoride by combining sodium citrate and zinc citrate trihydrate, increasing the retention of soluble fluoride and helping to treat and prevent plaque caries. This technical solution solves the technical problem of unsatisfactory halitosis removal effect in existing oral care products containing hydroxyapatite. The combination of hydroxyapatite, zinc citrate trihydrate, sodium citrate, and fluoride has ideal antibacterial, breath freshening, and anti-caries effects, and has promising prospects for widespread application.

This invention belongs to the field of condiment technology and discloses a low-sodium salt comprising 75-82 parts by weight of sodium chloride, 15-22 parts by weight of potassium chloride, and 0.8-1.5 parts by weight of konjac gum. It may also contain 0.2-0.4 parts by weight of sodium citrate, 0.3-0.6 parts by weight of magnesium sulfate, and 0.7-1.2 parts by weight of polydextrose. The invention also discloses a method for preparing this low-sodium salt, which involves dissolving sodium chloride, potassium chloride, konjac gum, and appropriate functional additives in a specific ratio, followed by decolorization, filtration, drying, and sieving. The preparation method of this invention is simple and suitable for continuous industrial production. The resulting product exhibits low sodium content, rapid ion release, low moisture absorption and anti-caking properties, and no bitter taste.

The application discloses a kind of oligopeptide wisdom-aiding sleep nutritional product and preparation method thereof.The wisdom-aiding sleep nutritional product of the application is prepared from 50kg of jujube seed, 40kg of poria cocos, 40kg of lily, 25kg of longan, 25kg of medlar, 20kg of eucommia leaf, 15kg of gastrodia elata, 25kg of red date, 25kg of millet, 5kg of corn oligopeptide, 2.25kg of chrysanthemum powder, 2.5kg of malt dextrin, 75g of stevia sugar and 150g of sodium citrate.The nutritional powder is organically matched using homologous medicinal and edible materials, takes into account traditional Chinese medicine regulating concept and modern food processing technology, realizes heart-liver-spleen-kidney homodyne, treats both symptoms and root causes, and has high safety, suitable taste and good solubility, can effectively improve sleep quality, improve memory, supplement nutrition and resist fatigue.

The application discloses a kind of functional probiotic fruit juice jellies and preparation method thereof, belong to functional food technical field.The preparation method includes raw material pretreatment, preparation of probiotic fermentation broth, jelly matrix preparation, substrate seasoning and bacterium-protecting system construction, strain mixing and fermentation, mixed deployment, filling and sterilization and the like steps.The application constructs synergistic bacterium-protecting system by "fructooligosaccharide+ sodium citrate", and combines the fine temperature control of whole process, so that the survival rate of probiotic in product in gastrointestinal tract is ≥75%, anthocyanin retention rate is ≥85%, simultaneously has the characteristics of excellent taste, stable form and multiple health benefits, suitable for industrial production.

The application provides a preparation method for removing silicon dioxide in rice hull, comprising the following steps: step one, mixing rice hull powder, PEG, citric acid and sodium carbonate solution into a mixture one and carrying out reflux reaction; step two, filtering the mixture one, and washing the filtered filter cake with an ethanol-water mixture two to remove residual PEG, sodium citrate and sodium silicate until the pH is neutral; step three, drying the filter cake, and the obtained dried block is treated rice hull powder, and the silicon dioxide content in the treated rice hull powder can be reduced. The preparation method of the application extracts or removes silicon dioxide from rice hull by using environment-friendly reagents such as sodium carbonate, polyethylene glycol (PEG) and citric acid; wherein, the sodium carbonate provides alkalinity, and converts the silicon dioxide in the rice hull powder into soluble silicate; the citric acid promotes the dissolution of the silicon dioxide through chelation; and the PEG helps the solution to penetrate the rice hull and reduces overall water pollution.

This application provides a low-alkalinity composite phosphorus-fluorine curing agent for phosphogypsum and its preparation method. The composite phosphorus-fluorine curing agent comprises the following raw materials in parts by weight: 100 parts by weight of granulated blast furnace slag powder, 30-60 parts by weight of modified metakaolin, 10-20 parts by weight of silica fume, 2-10 parts by weight of inorganic coagulant, 0.1-1 parts by weight of chelating and dispersing agent, 0.1-0.3 parts by weight of dodecylbenzenesulfonic acid, 0.15-0.3 parts by weight of sodium citrate, and 0.05-0.15 parts by weight of hydroxypropyl methylcellulose ether. The modified metakaolin is obtained by coating amorphous aluminum hydroxide onto the surface of metakaolin using a urea hydrolysis precipitation method. By synergistically introducing surface-functionalized modified metakaolin and a process control agent network into the composite curing agent system, the rapid formation of an early dense microstructure can be simultaneously promoted while ensuring good workability of the slurry. This results in improved early strength, long-term stability, erosion resistance, and control of harmful ion leaching risk in the obtained cured body.

The present application relates to a kind of bubble drinks for high uric acid population, production method, equipment, belong to functional food processing technical field.It includes the following weight parts of component: acid-eliminating composition extract: 6 to 9 parts by crude drug amount;Alkalization acid-eliminating regulator: 0.9 to 1.5 parts;Natural sweet and functional agent: 0.5 to 6 parts;And the balance of water;Acid-eliminating composition extract is prepared from chicory, tuckahoe and gardenia;Alkalization acid-eliminating regulator is composed of food-grade sodium bicarbonate and citric acid, both are reacted in water to generate sodium citrate buffer pair, and the mass ratio of citric acid and sodium bicarbonate is 1:(1.2-2.0), and the final pH of the bubble drink is 6.2-6.8.Utilize the sodium citrate buffer generated by alkalization acid-eliminating regulator reaction, fundamentally resolve uric acid crystallization, prevent uric acid kidney stone.Combined with acid-eliminating composition extract, physiological level of synthesis inhibition and excretion promotion and physicochemical level of urine alkalization and solubility promotion are realized.

This invention belongs to the technical field of functional personal care products, and specifically relates to a highly efficient and stable natural sulfur hot spring bath concentrate formula and its preparation process. The bath concentrate formula, by mass percentage, comprises the following components: 35.0-65.0% sulfur hot spring active concentrate, 0.001-0.01% sodium selenite, 0.1-1.0% sodium thiosulfate, 0.05-0.2% disodium EDTA, 0.5-3.0% cationic liposomes, 0.2-0.8% carrageenan, 0.5-3.0% calcium source, 0.3-2.0% magnesium source, 0.1-0.5% bisabolol, 0.1-0.5% dipotassium glycyrrhizate, 0.2-1.5% citrate-sodium citrate buffer pair, 3.0-8.0% polyol, 0.1-0.3% β-cyclodextrin-encapsulated fragrance, and deionized water to 100%. A liquid bath concentrate was obtained using natural sulfur hot spring water as the water source, which fully retains its active sulfide spectrum and characteristic mineral ions, and can be stored for a long time at normal temperature and pressure. It has the advantages of high stability, high polysulfide content, slow release, and no irritation.

This invention discloses a Shun'an Zhongda stomach-protecting seasoning product, belonging to the field of food seasoning technology. This product uses one or more food-grade, chlorine-free organic sodium compounds selected from sodium lactate, sodium citrate, sodium malate, sodium gluconate, and sodium hexametaphosphate as its core salty component. It is compounded using conventional food processing techniques to produce edible forms such as liquid, powder, granules, paste, colloid, and tablets. This product eliminates the traditional sodium chloride component, is free of chloride ion irritation, and is mild and safe to consume. It is specifically designed to meet the daily seasoning needs of people with excessive stomach acid or sensitive stomachs. Furthermore, its preparation process is simple, its form is flexible, and its application scenarios are wide-ranging, giving it significant market potential.

A process for preparing an aqueous ready to use oral liquid suspension of zonisamide or pharmaceutically acceptable salts thereof, wherein the process comprises: (a) adding purified water into a vessel; (b) adding a mixture of microcrystalline cellulose and carboxymethylcellulose sodium with stirring; (c) adding xanthan gum with stirring; (d) adding citric acid and sodium citrate with stirring; (e) adding sodium benzoate with stirring; (f) adding sucralose with stirring; (g) adding zonisamide or pharmaceutically acceptable salt thereof, with stirring at 20-30 Hz for 10-60 minutes; (h) stirring the suspension at 30-40 Hz for 45-55 minutes; (i) stirring the suspension at 45-55 Hz for 10-15 minutes; (j) adding strawberry flavouring with stirring; (k) adding purified water to make up the final volume; and (l) stirring the suspension, is provided. The process may further comprise (m) transferring to a filling vessel; and (n) packing the final suspension into a container. A sodium vapour lamp may be used before step (g). An aqueous ready to use oral liquid composition prepared by the process is provided. [Fig: None]

This invention discloses a nine-vitamin cod liver oil, comprising 8-12 parts cod liver oil, 1-1.4 parts vitamin A, 0.02-0.04 parts vitamin D3, 0.8-1.2 parts vitamin B1, 0.7-0.8 parts vitamin B2, 0.4-0.6 parts vitamin B6, 27-33 parts vitamin C, 0.4-0.6 parts vitamin E, 0.2-0.4 parts nicotinamide, 0.4-0.6 parts calcium pantothenate, 70-80 parts polysorbate 80, 0.1-0.6 parts fat-soluble antioxidant, 0.5-4 parts fat-soluble preservative, 8-12 parts water-soluble preservative, 4-6 parts water-soluble antioxidant, 40-50 parts sodium bicarbonate, 22-30 parts citric acid, 44-60 parts sodium citrate, and 3200-4800 parts sucrose. This invention provides a nine-dimensional cod liver oil and its preparation method, which can not only maintain the clarity of the liquid, but also keep the content of indicator components stable.

The present application provides a dandruff-removing and itching-relieving essence liquid with anti-inflammatory and antibacterial effects, and relates to the field of cosmetics.The present application provides an essence liquid, components of which comprise spironolactone, 1,2-hexanediol, ethanol, propylene glycol, butanediol, p-hydroxyacetophenone, citric acid, sodium citrate, pyridoxine hydrochloride, sophora alkaloid, menthol lactate, PEG-40 hydrogenated castor oil, dipotassium glycyrrhizinate, sodium hyaluronate, essence and quaternary ammonium salt-73; the essence liquid has significant anti-inflammatory and itching-relieving effects when used for scalp care, and also has antibacterial and dandruff-removing effects, and has great application potential in the field of cosmetics.

The application belongs to the field of self-powered materials, and discloses an ionic thermoelectric gel, a preparation method thereof and a flexible self-powered thermoelectric device, comprising the following steps: adding polyvinyl alcohol, sodium alginate and calcium chloride into a mixed system of deionized water and glycerol to obtain solution A; adding sodium citrate into the solution A to obtain solution B; adding potassium ferricyanide and potassium ferrocyanide into the solution B to obtain solution C; and freezing and thawing the solution C to obtain a shaped gel; and soaking the shaped gel in a sodium citrate solution to obtain the ionic thermoelectric gel. Through the multi-dimensional innovative design of the double-network matrix construction, the sodium citrate multi-regulation and the double thermoelectric mechanism synergy, the core problems of the poor mechanical adaptability, the insufficient power transmission stability and the weak long-term service ability of the existing ionic thermoelectric gel are improved, the dynamic deformation demand of the human body movement is adapted, the continuous discharge under the small temperature difference of the human body is realized, and the long-life synergistic optimization of the mechanical properties and the power transmission performance is realized.

This invention discloses a silver vanadate / zinc oxide composite photocatalytic material, its preparation method, and its application. Synthesized ZnO is used as the composite matrix, and AgVO3 is generated in situ on its surface through a chemical reaction. Specific steps include: ultrasonically dissolving sodium citrate dihydrate and zinc acetate in distilled water, adjusting the pH, performing a hydrothermal reaction, and then calcining at high temperature to obtain ZnO; adding the obtained ZnO to a soluble silver salt aqueous solution and a metavanadate aqueous solution, stirring, centrifuging, collecting the precipitate, washing, and vacuum drying to obtain the silver vanadate / zinc oxide composite photocatalytic material. This invention has the advantages of simple operation, wide applicability, and easily controllable reaction conditions, making it suitable for constructing highly efficient and stable composite photocatalytic materials. The specific microstructure of this composite material determines its excellent photocatalytic performance, with 20% wt AgVO3... 3 / Under light irradiation, the ZnO composite photocatalytic material achieved a 100% degradation rate of the organic pollutant RhB within 13 minutes.

This invention belongs to the field of bone repair biomaterials. It discloses a biomimetic bone material with controllable solidification time, comprising calcium phosphate salt, phosphate-based organic matter, and a biomimetic cancellation reactant. The biomimetic cancellation reactant comprises a cancellation reaction liquid phase and a cancellation reaction solid phase. The cancellation reaction liquid phase contains water, sodium citrate, and citric acid, while the cancellation reaction solid phase is sodium bicarbonate. This biomimetic bone material can effectively control the solidification time and degree of cancellation. Different ratios can be selected according to clinical surgical time requirements and the degree of bone cancellation at the clinical filling site, making it easy for clinical use.

The application discloses a kind of chemical plating black nickel concentrated solution, including concentrated solution A, concentrated solution B and concentrated solution C, concentrated solution A includes nickel sulfate, stannous sulfate, zinc sulfate, sodium hypophosphite, sodium citrate, sodium acetate, sodium lactate, sulfur-containing amino acid, stabilizer, ammonia and deionized water, concentrated solution B includes sodium hypophosphite, zinc sulfate, sodium acetate, sodium lactate, stabilizer and deionized water, concentrated solution C includes nickel sulfate, stannous sulfate, sodium citrate, sulfur-containing amino acid, ammonia and deionized water.The application also discloses its preparation method, plating method and application.The black nickel layer prepared from the chemical plating black nickel concentrated solution of the application not only has excellent blackening effect and luster, but also has excellent wear resistance, corrosion resistance and bonding force when directly contacting with metal substrate.The chemical plating bath has long service life and self-regulating control of pH value by continuous supplementing, and the plating speed is stable during the whole plating process.

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

This invention provides a liquid preparation of crude Astragalus membranaceus extract for ducklings and its preparation method. The liquid preparation comprises the following components in parts by weight: 45-55 parts crude Astragalus membranaceus extract, 5-8 parts cinnamaldehyde, 8-12 parts magnolol, 0.8-1.2 parts castor oil polyoxyethylene ether, 1-2 parts β-cyclodextrin, and 0.5-1 parts sodium citrate. This invention's liquid preparation of crude Astragalus membranaceus extract for ducklings shows significant therapeutic effects against Escherichia coli infection in ducklings. The crude Astragalus membranaceus extract, cinnamaldehyde, and magnolol exhibit a significant synergistic effect in treating E. coli infection in ducklings. This invention's liquid preparation of crude Astragalus membranaceus extract for ducklings provides better therapeutic effects, offering a better choice and treatment option for poultry and livestock.

This invention relates to the field of fabric softener technology, specifically to a fabric softener and its preparation method, comprising the following components: modified oleamide ethoxymethyl ammonium salt, oleamide quaternary ammonium salt, fatty alcohol polyoxyethylene ether, ethylene glycol distearate, phytosterol, sodium citrate, modified nano zinc oxide, fragrance, and deionized water. The components and preparation process of this invention form an organic whole, exhibiting a significant synergistic effect. The preparation of the buffer solution provides a stable pH environment for the dissolution and reaction of each component, avoiding component failure due to pH fluctuations. The stepwise dissolution and dispersion process of the active ingredients ensures the full dissolution of core components such as modified oleamide ethoxymethyl ammonium salt and oleamide quaternary ammonium salt, while ultrasonic dispersion technology further improves the dispersion uniformity of modified nano zinc oxide, solving the technical problems of traditional fabric softeners in terms of single function, diminishing effect, and insufficient antibacterial properties.

This invention belongs to the field of food packaging technology and discloses a hydroxypropyl methylcellulose-coated fruit and vegetable preservation film and its preparation method. The preservation film is composed of hydroxypropyl methylcellulose and phenolic-quaternary ammonium salt grafted chitosan, supplemented with food-grade additives such as glycerol, glyceryl monostearate, sodium citrate, talc, and potassium sorbate, forming a composite coating material with good antibacterial, moisture-barrier, and gas control capabilities. By uniformly spraying this film solution onto the surface of fruits and vegetables and drying it with low-temperature hot air, the shelf life of fruits and vegetables can be significantly extended. Experiments show that the film can effectively inhibit the growth of *Escherichia coli* and *Penicillium*, while exhibiting low water vapor and oxygen permeability, good storage stability of the film solution, and no stratification or flocculation, making it suitable for industrial applications in fruit and vegetable preservation. This invention has the advantages of safe raw materials, simple process, and stable performance, making it suitable for widespread application in the green packaging and transportation of fresh fruits and vegetables.

The application discloses a kind of soil improvement additive based on slag aggregate and preparation process thereof, belong to soil improvement technical field.First, slag aggregate is mixed with phosphoric acid solution, filtrate and solid are collected, to obtain acid-activated slag, then the collected filtrate is mixed with magnesium chloride hexahydrate, aluminium chloride hexahydrate and urea, and the pH is adjusted to obtain a hydrothermal reaction solution;The hydrothermal reaction solution and acid-activated slag are reacted, filtered to obtain slag@LDHs, solvent and cetyltrimethylammonium bromide are added, ammonia water and tetraethyl orthosilicate are added in sequence, and the mixture is stirred to obtain slag@LDHs@SiO2;Deionized water, ferrous sulfate heptahydrate and sodium citrate are mixed, and the pH is adjusted to obtain a plating solution.Finally, slag@LDHs@SiO2, plating solution and sodium hypophosphite are mixed and reacted to obtain a soil improvement additive.The soil improvement additive provided by the application can dynamically neutralize acidic soil, reduce nutrient loss and reduce heavy metal content in crops.

This invention discloses a flake-zinc powder-graphene composite powder material for anti-corrosion coatings and its preparation method, relating to the field of metal powder modification. The invention first modifies graphene with sodium citrate and mixes it with flake-zinc powder in an aqueous phase; then, acrylamide, a crosslinking agent, and an initiator are added to conduct in-situ free radical polymerization to generate a composite wet gel; the wet gel is cured, dried, pulverized, and ground to obtain a gel-coated precursor powder; the precursor is then annealed at high temperature in an inert atmosphere to obtain the composite powder. Sodium citrate improves graphene agglomeration, the in-situ gel network constrains the powder composite, and inert annealing enhances the powder's electrical conductivity. This invention solves problems such as interfacial incompatibility, poor dispersion, and disordered coating film layers. The product is suitable for water-based paints, oil-based zinc-rich primers, epoxy heavy-duty anti-corrosion coatings, etc., and exhibits excellent salt spray resistance.

The application discloses an alcohol-resistant and antioxidant double-shell fresh-keeping microcapsule, which is composed of a core material, a double-layer wall material, a pH buffer and a composite antioxidant; the double-layer wall material comprises an inner alcohol-resistant wall material and an outer acid-resistant wall material; the inner compact embedding wall material is composed of OSA modified starch, gum arabic, beta-cyclodextrin and separated whey protein; the outer alcohol-resistant and acid-resistant protective wall material is composed of HPMC, sodium alginate, a compound stabilizer and maltodextrin; the pH buffer is formed by compounding sodium citrate and sodium phytate at a mass ratio of 2:1; and the composite antioxidant is formed by compounding vitamin C and sodium erythorbate at a mass ratio of 1:1. Compared with the prior art, the application has the advantages that a multi-scene universal alcohol-resistant and antioxidant double-shell fresh-keeping microcapsule, a preparation method and application thereof are provided.

This invention belongs to the field of food ingredient technology and discloses a low-sugar, moisture-resistant sugar powder, comprising the following components by weight: 83 parts of low DE-value solid corn syrup and polydextrose, wherein polydextrose accounts for 10% to 30% of the 83 parts by weight, and the remainder is solid corn syrup; 0.04 to 0.06 parts of sucralose; 0.08 to 0.12 parts of sodium citrate; 9 to 11 parts of vegetable oil; 0.3 to 0.5 parts of mono- and diglycerides of fatty acids; 0.3 to 0.5 parts of fumed silica; and 6.0 to 7.0 parts of hydroxypropyl distarch phosphate. The preparation method is also disclosed. The preparation process of this invention is simple, can be continuously produced, and the prepared product has uniform powder, excellent flowability, strong moisture resistance, and is suitable for industrial production.

This invention relates to the field of sleep-aiding health food technology, and discloses a nano-dietary polyphenol beverage, its production method, and its application. The production method is as follows: Cyclodextrin, skim milk powder, and sodium caseinate are added to hot water at a temperature of 50-60°C and stirred until dissolved to obtain liquid 1; oligosaccharides and dietary plant polyphenols are added to hot water at a temperature of 60-80°C until fully dissolved, and the pH is adjusted to 6.2-6.8 to obtain liquid 2; while stirring, liquid 1 is heated to 85-95°C and kept at this temperature for 10-20 minutes. Then, while still stirring, liquid 2 and liquid 3 (formed from pre-dissolved ascorbic acid, sodium citrate, and concentrated fruit juice) are successively added to the kept-temperature liquid 1. Water is added to make up the difference, stirring is maintained, and after cooling, filtration, bottling, and sterilization, the dietary polyphenol beverage is obtained. This application solves the problem of bitter taste in high-polyphenol content beverages, improves the bioavailability of polyphenols, and has the effect of improving sleep quality.

The application relates to the technical field of nanobiological sensing, and discloses D-type amino acid modified gold nanoparticles as well as a preparation method and application thereof, which comprises the following steps: (1) dissolving D-type amino acid in deionized water to obtain a D-type amino acid solution, adding anhydrous acetic acid, a HAuCl4 solution and Tween-80 into the D-type amino acid solution, uniformly mixing, boiling at 100 DEG C, and keeping boiling; under the condition of violent stirring, adding a sodium citrate aqueous solution into the solution prepared in step (1), and continuously keeping boiling; after the reaction is completed, cooling to room temperature; using deionized water to dialyze the solution prepared in step (3), filtering and sterilizing, and obtaining the D-type amino acid modified gold nanoparticles. The D-type amino acid modified gold nanoparticles can detect bacteria through the color change of a solution, realize visual detection of bacteria, and do not need to rely on large instruments.