202results about How to "Broad-spectrum bactericidal" patented technology

The invention provides a compound antimicrobial and a preparation method thereof. The compound antimicrobial comprises micro-nano particles and guanidine polymers by the weight ratio of 1:1 to 1:50, wherein the micro-nano particles at least have the one-dimensional average dimension of 1nm to 1000 mu m; the guanidine polymers are coated on the surfaces of the micro-nano particles and/or embedded in holes or among layers of the micro-nano particles; inorganic or organic particles comprising micro-nano particles are added to a solution of the guanidine polymers; organic alkali is added or not added; the particles and the solution are uniformly mixed and dried for obtaining the compound antimicrobial. When applied to plastics, fibers and rubber, the antimicrobial has high sterilization efficiency, also largely reduces the processing cost of antibacterial materials, and has simple and convenient preparation method.

The invention discloses a preparation method of antibacterial silver/chitosan nano fibrous membranes, pertaining to the preparative technologies of nano composite fibrous membranes. The process of the method includes that a chitosan hexanoic acid solution, a silver nitrate aqoeous solution, a sodium borohydride water solution and an ethylene epoxide hexanoic acid solution are prepared and mixed to form compounded latex according to the volume ratios of the chitosan hexanoic acid solution and the silver nitrate aqoeous solution as well as an NaBH4 aqueous solution. The compounded latex and the ethylene epoxide hexanoic acid solution are mixed according to the volume ration to prepare a spinning solution, then the spinning solution is added into an injector in an electrostatic spinning device and electrostatic spinning is carried out to form the fibrous membrane. Crosslinking treatment is carried out to the fibrous membrane to obtain the antibacterial silver/chitosan nano fibrous membrane. The antibacterial silver/chitosan nano fibrous membrane of the invention has the advantages that the preparation process is simple; the prepared membrane material has broad-spectrum bactericidal property and comparatively high fatality rate to Bacillus coli, Bacillus subtilis, Staphylococcus aureus and Pseudomonas aeruginosa for 24 hours.

The invention discloses an aquatic product sterilizing pre-treating and cold-preserving method. The method comprises the steps of: firstly, washing an aquatic product by cold water to remove dirt and impurities; secondly, soaking the washed aquatic product in sub-acid electrolysed water or stirring for sterilization; placing the sterilized aquatic product in a foam preservation box and covering the sterilized aquatic product with preservation ice; and finally sealing the box. By using the method, the spoilage caused by microorganism pollution can be effectively restrained and the shelf life of the aquatic product can be prolonged; the preservation ice can be used for lowering the temperature and slowing down a series of biochemical reactions of the aquatic product; the water formed by melted ice during storage and transportation can play a further sterilization role; the sub-acid electrolysed water has a broad spectrum and high-efficient sterilization effect and especially can be reduced to water after reacting with organic matters; compared with the current other sterilizing agents, the sub-acid electrolysed water is safe without residues and is friendly to human bodies and environments; and the sub-acid electrolysed water is moderate in reacting functions and hardly has influences to the quality of meat. The method is not only applicable to preservation of fresh foods such as fish, shrimps and shellfish, but also applicable to the preservation field of meat products.

An agricultural chemical composition for controlling pests including armyworm and bacteria contains berberine (0.5-2.5%) and matrine (0.1-2.0%). Its advantages are high effect, no environmental pollution, and low toxicity to people and livestock.

The invention provides a silver-loaded low-molecular-weight chitosan composite microsphere antibacterial agent and a preparation method thereof. Low-molecular-weight chitosan is used as a raw material, and a low-molecular-weight chitosan acetic acid solution, a silver nitrate solution and a vanillic aldehyde ethanol solution are mixed to form composite sol; then paraffin is used as a continuous phase, sorbitan monooleate and alkylphenol ethoxylates are used as a compound emulsifier, a silver/low-molecular-weight chitosan sol is used as a monomer, and sodium tripolyphosphate is used as a cross-linking agent for preparing an emulsion system for emulsification crosslinking, and finally washing and drying are performed, so that the silver-loaded low-molecular-weight chitosan composite microsphere antibacterial agent is obtained. Due to the fact that the low-molecular-weight chitosan is used as the raw material, nanometer silver particles can enter microspheres, and the antibacterial activity of the composite antibacterial agent is obviously improved. The obtained antibacterial agent has the broad-spectrum bactericidal activity, and has the efficient fatality rate for both escherichia coli and staphylococcus aureus.

The invention provides an antibacterial composite plastic packing membrane and the making process thereof. And it comprises heat sealing layer, middle layer, and outer layer, where the composition of the heat sealing layer contains: LLDPE 5-40 parts, LDPE 10-35parts, MPE 15-35parts, and antibacterial agent 0.5-5 parts,the composition of the middle layer contains MPE 3-5parts, LDPE 15-25parts, LLDPE 55-70parts, antibacterial agent 0.2-3parts,the composition of the outer layer contains MPE 3-13parts, LDPE 15-35parts and LLDPE 45-65parts. And it carefully chooses antibacterial agent which has high-efficiency broad-spectrum property, is safe and nontoxic to human body, and has good heat resistance and succeeds in combining the antibacterial agent with PE membrane which has common physical and mechanical properties and makes the antibacterial agent uniformly distributed on the surface of the PE membrane, thus improving antibacterial function of the membrane and the surface polarity and hydrophily of the membrane, so as to make the membrane have good antistatic property.

The invention relates to a bactericide composition for preventing and controlling cotton disease. The bactericide composition is a composition of wettable powder, suspending agent, water dispersible granule or seed coating, which is prepared from fluoride ether bacteria amide, thiram and auxiliaries of wetting agent, dispersing agent, filling agent and the like. The fluoride ether bacteria amide and the thiram are mixed by the proportion of 1:4 to 4:1 and the combination of two bactericides with different bactericidal action mechanisms not only plays an obvious synergistic effect for cotton blight, but also is helpful for postponing the drug resistance of pathogenic bacteria. The bactericidal range is wide. The bactericide composition provided by the invention is applicable to prevention and control of various fungal diseases of crops, such as cotton blight, cotton damping off, cotton anthracnose, vegetable root rot and damping off and strawberry blight.

The invention relates to a novel environmentally-friendly corrosion-resistance peracetic acid disinfectant, and belongs to the technical field of disinfection product preparation. 100 ml of the novel environmentally-friendly corrosion-resistance peracetic acid disinfectant comprises: 0.1 to 0.5 gram of peracetic acid solution, 0.05 to 0.1 gram of stabilizer sodium ethylenediamine tetracetate, 0.1 to 0.2 gram of surfactant sodium citrate, 0.1 to 0.2 gram of quaternary ammonium salt, 0.005 to 0.02 gram of sodium molybdate, and the balance of water. The disinfectant has broad-spectrum sterilization performance, so that the stability of conventional peracetic acid is obviously improved; additives of the disinfectant obviously inhibit the corrosion of the peracetic acid on metal materials, can be suitable for quick and effective sterilization and disinfection in schools, hospitals, factories, mines and other public places, and also can be used for environment disinfection and sterilization of SARS (Severe Acute Respiratory Syndromes), A(H1N1) and other communicable diseases. The disinfectant has no pollution after use, and is safe and convenient to use.

The invention relates to a disinfectant, in particular to the rapid skin disinfectant and a preparation method thereof. The alcohol-containing PHMG iodine disinfectant comprises components with the following percentages by weight: 0.05 to 2 percent of PHMG; 0.1 to 5 percent of iodine; 30 to 80 percent of alcohols; 0.1 to 2 percent of stabilizer; 0.1 to 1 percent of penetrating agent; 0.1 to 2 percent of skin care agent; 0.1 to 0.8 percent of phosphoric acid with the concentration of 10 percent and the rest of water. The preparation method of the alcohol-containing PHMG iodine disinfectant is that: the PHMG and the iodine are added in the alcohol according to the components and the contents of the disinfectant, the mixture is heated and mixed for 0.5 to 2 hours at the temperature of 30 to 70 DEG C, the stabilizer, the penetrating agent, the skin protective agent and the phosphoric acid of 10 percent are then respectively added, the water is finally added to 100 percent to be evenly mixed, and the disinfectant is obtained. The disinfectant has strong sterilization ability and very high stability, and the effective period is as long as two years, thus being the ideal rapid skin disinfectant.

The invention discloses a nano-silver antibacterial moisture-preserving skin refreshing toner. The skin refreshing toner is characterized in that the skin refreshing toner comprises following components by weight: 0.2-10% of a moisture-preserving agent, 0.1-3% of a nutritional agent, 0.0005-0.1% of nano-silver and 0.001-0.1% of an essence, the balance being water. The skin refreshing toner is free from organic preservatives and uses the nano-silver as an anticorrosion antibacterial agent. The nano-silver not only has an anticorrosion function to the product, but also has a function of antisepsis and anti-inflammation and a function of accelerating restoration of damaged skin. In addition, the skin refreshing toner is colorless and transparent, strongly stable, mild, fresh, and nonirritating. The skin refreshing toner has a perfect moisture preserving function, can replenishing skin with water rapidly, and also has functions of weakening skin winkles, enhancing skin elasticity, removing skin toxin, and activating skin. A preparation method has characteristics of simple operation, wide parameter adjustable range, low energy consumption, short period, and the like, and is particularly suitable for pilot plant test amplification and industrialized large-scale production.

The invention discloses a bio-organic fertilizer for preventing and treating soil-borne diseases. The bio-organic fertilizer is prepared from the following raw materials: a microbial inoculum, peanutoil pressing residues, corn starch, filter mud, beef extract, soybean cake, monopotassium phosphate, urea, molasses, potassium sulfate, water and the like. The microbial inoculum is composed of Bacillus polymyxa and further comprises any one or a mixture of more than one of Bacillus amyloliquefaciens, Bacillus mucilaginosus and Bacillus pumilus. The invention also provides a preparation method andan application method of the bio-organic fertilizer. The bio-organic fertilizer disclosed by the invention is also rich in organic carbon and organic nitrogen, so that the colonization and function exerting capabilities of functional microorganisms in soil are improved, the growth of pathogenic microorganisms is favorably inhibited, and soil-borne diseases such as root rot, bacterial wilt, seedling blight, damping-off, canker and root-knot nematode disease are effectively prevented. The use amount of chemical fertilizers and pesticides can be reduced, guiding significance is provided for production of harmless agricultural products, and good social benefits and economic benefits are achieved.

The invention discloses a flocculation, aeration and sterilization water purifying agent for water of a culture factory and a preparation method of the water purifying agent. The water purifying agentis prepared from raw materials in parts by weight as follows: 40-50 parts of modified adsorbent filler soil, 10-16 parts of an aeration agent, 1-2 parts of a water purifying biological agent, 8-10 parts of activated carbon, 7-9 parts of shell powder, 5-7 parts of a nano additive, 10-14 parts of a compound plant extract, 10-12 parts of shell-lac and 3-5 parts of humate. The water purifying agent has the functions of flocculation and purification of water environments for aquaculture, can adsorb heavy metal ions, kill pathogenic bacteria in water, increase the content of beneficial microorganisms in water and increase the oxygen content of the water, is non-toxic and harmless to aquatic organisms, safe, environmentally friendly, lower in production cost, simple to prepare, comprises materials easy to obtain and has higher practical value and good application prospects.

The invention discloses an indoor disinfectant and a preparation method thereof and relates to the technical field of disinfectants. The indoor disinfectant comprises the following components: 90-110 parts of Chinese herbal medicine extract, 40-50 parts of borneol, 30-40 parts of bamboo carbon powder, 20-30 parts of essential oil components, 20-30 parts of nano-zinc oxide, 10-15 parts of fatty alcohol-polyoxyethylene ether, 2-10 parts of a cationic surfactant, 2-8 parts of a buffering agent, 2-4 parts of a solubilizer and 40-50 parts of deionized water. The indoor disinfectant disclosed by the invention has the characteristics of being zero in toxic or side effect, zero in residue and low in irritation and the like, has high safety, can be directly contacted with skin when sprayed in air, is non-irritating to skin, has broad spectrum bactericidal performance and high stability and has excellent effect of killing bacteria, fungi and moulds.

A hydrophilic liquid disinfectant for surgical operation, trauma, burn, perineal mucosa, oral mucosa, vaginal mucosa, etc is prepared through adding iodine, chlorhexidine and polyhexamthylene guanidine to non-ionic surfactant, heating, stirring, adding penetrant, phosphoric acid and water, and stirring.

The efficient compound mildew inhibitor for feed additive has lactic acid and/or phosphoric acid, propionic acid, monomethyl fumarate, potassium iodide, etc. as effective components, and oyster shell powder, corn cob, rice bran and other green functional stuffing and carrier. It is prepared through a mixing, pelletizing and coating process, and has no volatilization of mixed acid, lasting mildew inhibiting effect, low use amount and other advantages. It has wide bactereostasis spectrum and mildew inhibiting period over 65 days.

The invention relates to a smearing agent for promoting poplar-willow-trunk wound healing. In every 1,000 parts by weight of the smearing agent, the smearing agent is prepared from, by weight, 0.002-5parts of a plant growth regulator, 11-125 parts of a high-molecular film forming agent, 0.1-10 parts of a tackifier, 1-50 parts of an inert carrier, 0.1-30 parts of an antimicrobial substance, 0.1-1part of a coloring indicator and the balance water; the high-molecular film forming agent is prepared from, by weight, 1-20 parts of polyvinyl alcohol, 5-50 parts of sodium carboxymethylcellulose, 5-50 parts of chitosan and 0-5 parts of polyethylene glycol. The smearing agent is nontoxic and harmless to poplar-willow cambial cells, and the wound healing speed of poplar-willow trunks can be increased. The invention also discloses a preparing method for the smearing agent for promoting poplar-willow-trunk wound healing, and the smearing agent prepared with the method is applied to poplar-willow-trunk wound healing treatment, and has the advantages of being wide in bactericidal spectrum, low in toxicity, free of residue, safe, reliable, capable of protect wounds and the like.

The invention discloses a composite sewage purifying agent and a preparation method thereof. The composite sewage purifying agent comprises, by mass, 50-70 parts of nano-silver powder, 35-45 parts ofzinc oxide nano-powder, 35-45 parts of titanium oxide nano-powder, 15-20 parts of activated carbon, 15-20 parts of carboxymethyl cellulose, 5-10 parts of polyacrylamide, 8-12 parts of polyaluminum chloride, 8-10 parts of polyferric sulfate, 7-12 parts of aluminum sulfate, 0.1-0.5 part of a humic acid ion exchanger and 0.3-0.5 part of potassium permanganate. The composite sewage purifying agent caneffectively sterilize and purify sewage, and has the advantages of treatment of various pollutants, strong effect and wide application range by adopting a composite preparation.

The invention discloses a preparation method of a hemodialysis concentrated solution. The preparation method comprises the following steps that (1) the hemodialysis concentrated solution is prepared in a solution mixing tank; (2) the solution in the solution mixing tank is subjected to second-level filtration; (3) the solution in the solution mixing tank and ozone generated in an ozone generator are input to a storage tank after being mixed through a gas and liquid mixing pump; (4) the solution in the solution mixing tank is pumped back to the solution mixing tank through a circulation pump; (5) the solutions in the solution mixing tank and the storage tank are mixed in a circulative mode until the ozone concentration of the solution in the storage tank reaches 0.050-0.100 mg/L; (6) the hemodialysis concentrated solution is obtained through filling. The preparation method is simple in operation, quick, efficient, and easy to industrialize. Compared with a conventional method, according to products prepared through the method, initial contaminating bacteria in the concentrated solution are reduced, the storage period is prolonged, product quality is better guaranteed, and using safety of a patient is guaranteed.

The invention belongs to the technical field of environment-friendly materials, and provides a novel degradable environment-friendly material with high mechanical strength and a preparation method thereof. The degradable novel environment-friendly material with high mechanical strength contains the following raw materials in parts by weight: 10-24 parts of polyethylene resin, 17-23 parts of modified wheat starch, 1-9 parts of corn straw fiber, 4-5 parts of epoxidized soybean oil, 1-3 parts of rice husk powder, 3-8 parts of bamboo powder, 3-9 parts of inorganic filler, 1.3-3.2 parts of bactericide, and 1-3 parts of coupling agent. The formula of the environment-friendly material is adjusted based on the formula of the traditional disposable foamed plastic, the consumption of polyvinyl resinite can be decreased, and the modified wheat starch, corn stalk fibers, epoxy soybean oil, paddy rice husk powder, bamboo powder, inorganic fillers, bactericide and coupling agent ingredients are increased. The environment-friendly material is non-toxic and harmless, as well as pollution-free, the 90-day biodegradation rate is more than 92%, the cost is low, and the practical and popularization values are achieved.

The invention discloses a rapid footgear deodorant agent, which is prepared from the following components in parts by weight: 87.38-93.09 parts of solvent, 0.50-1.50 parts of sterilizing agent, 1.50-5.00 parts of deodorant, 1.80-5.00 parts of fragrant agent, 0.30-0.50 part of stabilizing agent and 0.81-2.12 parts of other auxiliary materials. The rapid footgear deodorant agent is good in comprehensive deodorant performance and convenient to use, the deodorant agent is sprayed inside shoes or socks with odors, so that the odors of the footgear can be rapidly taken away, and a fresh and pleasant effect is achieved. Meanwhile, the invention also discloses a scientific and reasonable preparation method, which comprises the following steps of: adding the sterilizing agent and essence into a dealdehyding ethanol solvent to form a phase I; sequentially adding the fragrant agent, deodorant, sterilizing agent and pigment into deionized water to form a phase II; and slowly adding the phase II into the phase I, and uniformly stirring to form transparent liquid, thus manufacturing the rapid footgear deodorant agent.

Disclosed are a preparation method and application of Anaphalis lactea essential oil. Volatile oil in Anaphalis lacteal is extracted by steam distillation and CO2 supercritical extraction, ingredients of the volatile oil are analyzed initially by gas chromatography/mass spectrography, 57 ingredients in the volatile oil are identified and account for more than 94% of the total volatile oil. Antibacterial and bactericidal activities of the volatile oil are researched by the Oxford cup method, and according to the research, the volatile oil has an evident killing or inhibiting function for bacteria, such as staphylococcus, streptococcus, enterobacter, salmonella, shigella, pseudomonas, bacillus, escherichia coli and the like, and fungi, such as candida, cryptococcus, penicillin, aspergillus, mucor, microsporum, trichophyton, epidermophyton and the like. Testing by DPPH (diphenylpicrylhydrazyl) method shows that the volatile oil has fine antioxidant activity. Owing to the fine activity, the volatile oil is widely applicable to the industries of foods, medicines, cosmetics, health-care products and the like.

The invention discloses a combination solution for purifying air and application thereof. The combination solution comprises the following components in percentage by weight: 5-15% of titanium dioxide, 3-5% of silicon dioxide, 1-2% of silver, 5-10% of tourmaline, 3-8% of dimethyl fumarate, 3-9% of ethyl alcohol and the rest of water, wherein the components titanium dioxide, silicon dioxide, silver and tourmaline are nanometer powder. The combination solution for purifying the air is regularly or irregularly sprayed to the walls of public spaces and communal facilities for sterilizing and purifying the air in limited spaces; the combination solution for purifying the air can also be used in places for producing goods, grains and feeds and the like by a diffusing device for purifying the air.

The disinfectant containing chlorine dioxide component consists of: sodium chlorite 1-20 wt%, citric acid 70-98 wt%, and anhydrous calcium chloride 0-15 wt%. The disinfectant is safe and non-toxic and may be used widely in disinfection in agriculture, culture, medicine, environment and drinking water.

The degradable mulching product is prepared with 5000PPM activating ClO2 10-20 wt%, superfine ore powder 20-30 wt%, starch material 10-20 wt%, and honey locust gum powder or honey locust gum powder mixture 40-50 wt%. The degradable mulching can maintain temperature water and fertilizer of soil, raise plant seedling growth speed, etc. What is more important is that after the crop is harvested, the degradable mulching may decompose fast to kill bacteria and pests in soil and provide plant with nutrients without polluting soil and environment.

The invention discloses a Shatian pomelo fruitcake and a making method thereof. The Shatian pomelo fruitcake comprises the following components in parts by weight: 35-50 parts of Shatian pomelo, 20-40 parts of starch sirup, 1-3 parts of agar, 15-25 parts of honey, 0.8-1.5 parts of citric acid, 0.1-0.5 part of malic acid, 0.1-0.4 part of sodium citrate and 50-120 parts of magnetized drinking water. According to the fruitcake prepared by the making method disclosed by the invention, the mouth feel of the fruitcake combines the mouth feel of jellies and the mouth feel of soft sweets, the appearance is smooth and transparent, the Shatian pomelo fruitcake is high in elasticity, is fine and smooth in mouth feel and is convenient to eat.

The invention relates to a fruit and vegetable fresh-keeping technology based on the singlet oxygen oxidation and belongs to the fruit and vegetable fresh-keeping field. The technology adopts the photosensitive method and the chemical method to act on a packaging material and directly generate the singlet oxygen; and further uses the generated singlet oxygen to sterilize fruits and vegetables in the packaging material and eliminate the ethylene emitted from the fruits and the vegetables. The photosensitive method includes irradiating the packaging material coated with the photosensitizer which generates triplet excitation state substance after absorbing photons and obtaining the singlet oxygen. The chemical method includes coating the packaging material with the chemical substance which generates the singlet oxygen and obtaining the singlet oxygen through chemical reactions. The singlet oxygen has high active oxidation and is capable of killing various microbes causing rot and deterioration of the fruits and the vegetables and effectively reducing the ethylene content of the plant incretion, therefore, the fresh-keeping periods of the picked fruits and the vegetables are lengthened effectively. Owing to the short reaction time of the singlet oxygen, no chemical residual generates on the fruits and the vegetables after the reaction and the usage is safe and convenient.

The invention discloses preparation of electric touch-out nano high-valence silver oxides and application thereof as disinfectants. The electric touch-out nano high-valence silver oxides are chemical substances which can kill microorganism efficiently. The preparation method of the oxides used as the disinfectants comprises the following steps of: placing an oxidant of potassium persulfate or sodium persulfate into distillated water; adding sodium hydroxide, diluting and heating (80-90DEG C); adding silver nitrate and keeping the temperature for 30-60min; filtering and flushing with purified water four times to obtain electric touch-out nano high-valence silver oxide particles; dissolving with 5-10 percent ammonia water to obtain 2-5 percent disinfectant mother solution; and processing the disinfectant mother solution into water aqua, effervescent tablets and the like which have the final concentration of 0.3-0.5ppm and can completely kill various microorganisms for test with over 10,000cpu/cc to 100,000cpu/cc within 20min. The invention can be widely applied to various environment disinfections and instrument disinfection of hospitals, schools, swimming pools, bathing pools and other public places, families and the like. The electric touch-out nano high-valence silver oxides have low price of raw materials and simple process; and a preparation has remarkable function on various microorganisms and no harm to the environment and human beings.