77results about How to "Has antibacterial and bactericidal effect" patented technology

The invention discloses a tetrastlgma hemsleyanum vine polysaccharide extract, a preparation method and application thereof. The method includes: crushing dry tetrastlgma hemsleyanum vine to obtain dry powder, conducting extraction with water, performing filtering, and drying the filtrate to obtain a tetrastlgma hemsleyanum vine aqueous extract, and subjecting the tetrastlgma hemsleyanum vine aqueous extract to ethanol precipitation and two-aqueous phase extraction, thus obtaining the tetrastlgma hemsleyanum vine polysaccharide extract with a polysaccharide content of 53.7%-97.8%. The tetrastlgma hemsleyanum vine polysaccharide extract prepared by the method provided by the invention has antibacterial and bactericidal effects, and can be used for preparation of bacteriostatic and bactericidal articles. If the tetrastlgma hemsleyanum vine polysaccharide extract is prepared into an antibacterial liquid medicine, the medicine liquid can be used as a component in drugs, cosmetics, health food, food and used for bacteriostasis and antibiosis in people, animals and aquaculture process. Besides the original public efficacy of tetrastlgma hemsleyanum, the tetrastlgma hemsleyanum vine polysaccharide extract has new use in drugs, cosmetics, health food and food, and has bacteriostatic and bactericidal effects, thus having broad application prospects.

The invention provides a preparation technique for porous porcelain granules loaded with Ag/N-TiO2 nanometer film, which comprises the preparation of the porous porcelain granules and the manufacture of film on the porous porcelain granules, and is characterized in that: (1) -100 meshes of fly ash and quicklime and -200 meshes of kaolin and glass powder are adopted as raw materials, which are mixed according to the weight ratio of 70: 6: 10:14; TiO2 that accounts for 0.5-1 percent of the total weight of the raw materials, NH4HCO3 that accounts for 20-30 percent of the total weight of the raw materials and water that accounts for 60-65 percent of the total weight of the raw materials, are all added into the mixture mixed by the four raw materials; the new mixture is stirred uniformly to prepare granules with the particle size of 1-2cm, which is immediately placed under microwave for foaming and drying for 1-5min so as to prepare porous porcelain granule billets with the diameter of 2-5cm, and then the billets are sintered for 1h under 1100DEG C to prepare the porous porcelain granules; (2) Ag/N-TiO2 sol is prepared by adopting sol-gel method and the sol is coated on the porous porcelain granules by adopting dipping method, thus obtaining the porous porcelain granules loaded with Ag/N-TiO2 nanometer film after drying and calcining. The sol is evenly coated on the porous porcelain granules, so active constituent does not lose effectiveness under low temperature, thus having good visible light degradation and relatively strong bactericidal effect.

The invention discloses an ethanol extract of radix tetrastigmae leaves as well as a preparation method and application of the ethanol extract. The preparation method comprises the steps of smashing dried radix tetrastigmae leaves to obtain dry powder; extracting by using an ethanol water solution, and filtering to obtain filtrate; and drying the filtrate to obtain the ethanol extract of the radix tetrastigmae leaves. According to the preparation method, bacterium inhibiting and killing components in the radix tetrastigmae leaves are extracted through extracting by using the ethanol water solution, and finally, the ethanol extract of the radix tetrastigmae leaves is obtained. The ethanol extract of the radix tetrastigmae leaves, prepared by using the preparation method, can be used for preparing bacterium inhibiting and killing supplies, can be used for inhibiting and killing bacteria on drugs, cosmetics, health foods and foods as well as bacteria generated in human, animals and aquaculture, and can be used for effectively inhibiting bacterial growth and killing bacteria.

Provided are a modified nanometer bamboo charcoal mask and a manufacturing method thereof. The modified nanometer bamboo charcoal mask comprises an inner mask and an outer mask, wherein the inner mask is provided with a dismounting opening, and a filer layer is arranged in the dismounting opening. The inner mask and the outer mask of the mask and a filer layer base plate are made of an electrets melt-blowing polypropylene fiber non-woven fabrics, the filer layer uses chitosan as a capsule wall material, microcapsules are made from modified nanometer bamboo charcoal powder, beewax is used as an adhesive for arranging the microcapsules on the non-woven fabrics. The modified nanometer bamboo charcoal powder are modified by adopting nanometer titanium dioxide. The modified nanometer bamboo charcoal mask is green, environment-friendly, safe and efficient, has the broad-spectrum antibacterial effect and has good washability due to the fact that the beewax is used as the adhesive to arrange the microcapsules on the non-woven fabrics.

The invention discloses a preparation process of an efficient filter cotton used for coating. The preparation process comprises the following steps: S1, cotton mixing: matching fiber according to preset proportion as required, weighing initial weight and then pouring into a stirrer to be stirred by rotation of a machine; S2, opening; S3, carding: carding to uniform thickness, delivering a uniformly distributed cotton layer to an upper screen, and paving into a net by a shaking screen; S4, net paving: swinging in a reciprocating way by the shaking screen, paving into a uniform net layer and then sending into an oven by a bottom screen; S5, sizing with hot air: enabling low-melting-point fiber to cohere various fibers together so as to form synthesized cellucotton; S6, sizing with cold air and trimming and curling: enabling the synthesized cellucotton to be subjected to sizing with cold air, then determining the thickness of the cellucotton by a pressure shaft, then trimming with a preset value, cutting off with a thermofuse after the length reaches a preset value, and then coiling. The filter cotton in the field of high-grade paint coating, prepared by the method provided by the invention, is formed by mixing two-dimensional and three-dimensional superfine fibers, and such fiber has antibacterial and germicidal effects.

The invention relates to a Chinese medicinal composition for treating burns and scalds. The Chinese medicinal composition is composed of, by mass: 3-5 parts of propolis, 0.5-1 part of borneol, 5-15 parts of phellodendron, 10-20 parts of beeswax, 5-10 parts of Sanguisorba officinalis, 5-10 parts of radix rehmanniae, 5-10 parts of Rhizoma Coptidis, 5-10 parts of rhubarb, 5-10 parts of Scutellaria baicalensis, 1-3 parts of lithospermum, and 450-550 parts of sesame oil. The preparation method of the Chinese medicinal composition includes: grinding borneol, radix rehmanniae, Rhizoma Coptidis, and lithospermum into a fine powder respectively, and sieving the powder by a sieve of 80-120 meshes for standby use; putting sesame oil and beeswax into a pot, conducting heating and stirring simultaneously, and after melting of the beeswax, performing cooling to 70-80DEG C, adding borneol, further conducting cooling to 40-50DEG C, adding the residual components, stirring the mixture uniformly, thus obtaining a thick paste or paste. The Chinese medicinal composition provided by the invention solves the problems of long treatment cycle and slow effect in existing ointments for treating burns and scalds, has the effects of clearing away heat and toxic materials, removing necrotic tissues and promoting granulation, relieving pain, promoting blood circulation and removing blood stasis, and can effectively prevent infection and inhibit scar hyperplasia.

The invention provides multilayer compound geomembrane used for soil remediation. The multilayer compound geomembrane used for soil remediation comprises a weather-resistant layer, a compound anti-corrosion and impervious layer and a weather-resistant layer from top to bottom in sequence; the weather-resistant layers and the compound anti-corrosion and impervious layer bond through a bonding agentseparately; the weather-resistant layers are produced from one of teflon and polyvinylidene fluoride; and the compound anti-corrosion and impervious layer is formed by making glycidyl methacrylate-grafted high-density polyethylene and a polymer, which is formed by conducting condensation polymerization on 2,2-bis(3-amino-4-hydroxyphenyl)hexafluoropropane and thiazolidine-2,4-dicarboxylic acid, subjected to blending and grafting, and then doped with surface-modification crystalline flake graphite. The invention furthermore discloses a production method of the multilayer compound geomembrane used for soil remediation. The multilayer compound geomembrane used for soil remediation has the advantages of excellent weather resistance, corrosion resistance, flame retardancy and impervious performance, and a longer service life.

The invention relates to the technical field of ant insecticides, in particular to an ant repelling agent and a preparing method thereof. The ant repelling agent is mainly prepared from 16-17 parts ofcamphor tree leaves, 15-17 parts of walnut leaves, 16-18 parts of tobacco leaves, 13-15 parts of basil, 14-16 parts of coleus blumei, 10-15 parts of rhoeo discolor, 11-12 parts of common lantana leaves, 10-13 parts of canna indica, 10-11 parts of bitter buttons, 9-10 parts of herb of Grace, 8-10 parts of mint, 6-8 parts of clove, 3-4 parts of cinnamon, 5-7 parts of black pepper, 5-7 parts of eggshell powder, 20-25 parts of organic solvent and the like. The agent has a remarkable ant repelling and killing function, the shelf life of the agent is prolonged, the use of chemicals is reduced, thesafety threats on the environment and human beings are reduced, the preparing method is simple, and production is easy.

The invention provides an environment-friendly bamboo charcoal mask and a manufacturing method thereof. The mask comprises an inner mask body and an outer mask body, the inner mask body is provided with a detachment opening, a filtering layer is arranged in the detachment opening, the inner mask body, the outer mask body and the filtering layer are all made of electret melt-blown polypropylene fiber non-woven fabrics, chitosan serves as a capsule wall material of the filtering layer, nanometer bamboo charcoal powder serves as a core material to be made into micro capsules, and the microcapsules are arranged on the non-woven fabrics through beewax serving as adhesive agents. The chitosan, the bamboo charcoal powder and the beewax are all natural materials, the obtained product is environmentally friendly, safe and efficient and has a broad-spectrum antibacterial function, the microcapsules are arranged on the non-woven fabrics through the beewax serving as the adhesive agents, and good washability is achieved.

The invention belongs to the field of inorganic nonmetal materials, particularly belongs to a preparation method of an anti-bacterial tooth growing and repairing material, and relates to a growing and repairing anti-bacterial tooth material used in an alveolar cavity without a tooth or on the surface of an incomplete tooth. The anti-bacterial tooth growing and repairing material comprises the following main ingredients: apatite crystals containing silver, copper, calcium and phosphorus, titanium oxide and zinc oxide. Under the regulation and control effect of a binary polyelectrolyte compound consisting of water-soluble cationic polyelectrolyte and organic polyatomic acids, ingredients of the tooth growing and repairing material are synthesized with soluble calcium salt, soluble phosphate, copper sulfate and silver nitrate salt, a crystal natural growing method is used, and a dental matrix comprising the apatite crystals containing the silver, the copper, the calcium and the phosphorus, the titanium oxide and the zinc oxide are subjected to adsorption reaction fully. Crystalline grains of the anti-bacterial tooth growing and repairing material are in nanoscale, the copper and the silver can be fine and are uniformly distributed in the tooth growing and repairing material, diameters of metal particles are 30-80 nanometers, and the anti-bacterial tooth growing and repairing material can release anti-bacterial elements quickly and continuously.

The invention relates to the field of fermentation of microbes and particularly relates to a method for preparing a special lactic acid bacteria synergized culture medium for pickled vegetables and anapplication of the special lactic acid bacteria synergized culture medium. The method comprises the steps of subjecting two kinds of lactic acid bacteria to amplification-culturing, proportionally mixing amplification-cultured seed solutions, inoculating a spicery solution with the solution mixture by an inoculum size of 0.1% to 30%, carrying out fermentation in advance for 6 to 48 hours to obtain the special lactic acid bacteria synergized culture medium for the pickled vegetables, then, mixing the obtained special lactic acid bacteria synergized culture medium with pretreated jerusalem artichoke proportionally, and continuing to carry out fermentation for 2 to 7 days. According to the method and the application, by taking jerusalem artichoke tuber-jerusalem artichoke leaf as a fermentation synergizing matrix and optimizing a synergizing matrix for culturing lactic acid bacteria applicable to processing of jerusalem artichoke pickled vegetables, discovered that jerusalem artichoke tubers and jerusalem artichoke leaves can serve as a synergizing culture medium and the bacterial inhibition of fermentation broth can be enhanced by employing the jerusalem artichoke tubers and the jerusalem artichoke leaves, and the appropriate addition range of the jerusalem artichoke tubers and the jerusalem artichoke leaves is determined.

The invention discloses a flame-retardant temperature-regulating environment-friendly non-woven fabric and a preparation method thereof. The preparation method comprises the following steps: graftingamino and nano-silver on the surface of a modified carbon nanotube, introducing the modified carbon nanotube into a non-woven fabric base material, grafting sulfydryl and hydroxyl on a temperature-regulating capsule to modify the modified temperature-regulating capsule, respectively preparing a cationic flame-retardant coating and an anionic flame-retardant coating, sequentially coating thenon-woven fabric base material with a modified temperature-regulating capsule coating, the cationic flame-retardant coating and the anionic flame-retardant coating, and adsorbing polyelectrolyte or nanoparticles with opposite charges between the coatings by utilizing intermolecular force between the coatings and the non-woven fabric base material. Thus, the non-woven fabric with flame-retardant and temperature-regulating functions is constructed within a nanoscale range, a core material in the prepared non-woven fabric temperature-regulating capsule is not prone to leakage, the adhesive force betweenthe coatings is good, the non-woven fabric is more washable, meanwhile, the non-woven fabric has a certain antibacterial function, and market requirements can be met.

The invention relates to the technical field of podocarpus macrophyllus planting, in particular to a rapid growing method of podocarpus macrophyllus. The method includes the steps that after cutting propagation is conducted with twigs as cutting slips, the steps of land selection and conditioning, furrowing and ridging, transplanting, fertilizing, field management and the like are conducted, wherein the soil conditioner is mainly prepared from sulphur, quick lime, alkali waste, ammonium phosphate, phosphogypsum, sodium alkyl benzene sulfonate, saccharomycetes, rhizopus, bacillus subtilis, nitrifying bacteria and the like; root immobilizing soil is mainly prepared from pond sludge, fen sludge, sugar filtration sludge, nitrogen-fixing bacteria, trichoderma sp, aspergillus, potassium permanganate, starch-grafted acrylate, alginic acid, heparin and the like through fermentation. According to the rapid growing method of podocarpus macrophyllus, rich and balanced nutrient substances are provided for podocarpus macrophyllus, so that podocarpus macrophyllus grows healthily and rapidly, the survival rate is greatly increased, and thus the economic benefit of podocarpus macrophyllus is increased.

The invention discloses a composting sewage environmental-friendly recycling system. An artificial permeation pond is constructed, water is subjected primary filtration and purification through a river impact sand layer and a marble sand layer in the artificial permeation pond, toxic substances in the water are subjected to further adsorption treatment through an activated carbon layer at the bottom of the artificial permeation pond, finally filtration treatment is implemented through a ceramic filtering membrane, then water quality meets a recycling degree, sewage can be immediately used after multiple steps of purification treatment, and difficulties of factory shutdown, agricultural yield reduction and the like caused by water shortage can be alleviated; due to adoption of silicon carbide, the ceramic filtering membrane can form a cordierite phase, due to adoption of cerium oxide, formation of spinel can be inhibited, the silicon carbide and the cerium oxide are capable of synergistically increasing the resultant force of a granule neck structure, uniform pore size distribution can be achieved, and the filtration efficiency of the ceramic filtering membrane can be improved; in addition, due to adoption of nano titanium dioxide and nano silica, the ceramic filtering membrane has an antibacterial and sterilization function, and the sewage purification capability of a system can be further improved.