169results about How to "Solve the antibacterial effect is not good" patented technology

The invention relates to a preparation method of an edible film with antibacterial and antioxidant functions, and belongs to the technical field of edible packaging materials. The preparation method disclosed by the invention comprises the following steps: 1) dissolving and gelatinizing corn starch; 2) dissolving gelatin; 3) dissolving chitosan; 4) adding glycerin and plant essential oil or essential oil components; 5) mixing, homogenizing and refining; 6) degassing; 7) tape-casting; and 8) drying and stripping the film. The preparation method disclosed by the invention has the beneficial effects that the chitosan, the corn starch and the gelatin are taken as base materials of the edible film, the sources of the raw materials are wide, the cost is low, and the prepared edible film has the advantages of strong mechanical properties, high barrier performance and great transparency. Oregano oil, carvacrol and cinnamaldehyde are taken as an antibacterial agent and an antioxidant so as to be added into the edible film, the processing process is simple and easy to operate, the cost is low, the edible film is non-toxic and safe to eat, and the prepared edible film has great antibacterial and antioxidant properties.

The invention relates to a natural antibacterial mould proofing detergent without petrochemical components. The detergent which is produced by organically combining petrochemical component-free natural plant extract, petrochemical component-free natural mineral extract and existing products processed by modern biological technologies has high safety to human bodies and the environment, is environment-friendly, is capable of efficiently resisting bacteria and mildew, has strong broad-spectrum antibacterial and mould proofing performances, especially has excellent antibacterial performance for drug resistant germs, can remove heavy metals such as lead, and AOX (adsorbable organic halide) attached to clothes and skin, and has good vegetal washing effect especially for the fabric dyed with natural dyes, and the fabric dyed with natural dyes does not fade or change color after being washed with the detergent. The natural antibacterial mould proofing detergent does not contain oxidant or fluorescent brightener, is nonirritant to the skin, is applicable to washing the fabric and clothes of children, can be used for washing tableware and vegetables, can be used as liquid soap, liquid shampoo, bath foam and the like, is environment-friendly, safe and hygienical, and is a multifunctional washing product.

The invention relates to a method for preparing the medical dressing agent used after burn operation, wherein it comprises that: compositing carboxyethyl polymer 60-70% (w/w) and dodecyl polyoxyethylene 40-30% (w/w) into macromolecule compound as A group; mixing 40-50ml propanediol, 40-50g glycerin, 60-70g liquid wax, and 1000ml pure water with high shearing into mixture B group; preparing 20-30g emulsified silicon oil and 10-20g soluble laurone into mixture C group; mixing and strengthening 20-30 tea oil and 300-500g soluble tea water into solution D group; putting A group into slow-mixing reaction kettle, adding B, C, D groups to be mixed into gel sol; then dispersing sol into middle-density polyamine sponge or medical non-weave cloth to be packed. The invention can improve skin metabolism, disinfect, and improve cut healing, etc.

The invention relates to a method for preparing a pharmaceutical composition for treating diseases of the urinary system and a method for detecting components thereof. The pharmaceutical composition comprises the components of desmodium styracifolium, corn silk, pyrrosia lingua, herba abri, tuckahoe, herba plantaginis, lygodium japonicum and rhizoma imperatae. The method for preparing the pharmaceutical composition comprises the following steps: step 1: dividing the tuckahoe into two parts; step 2: pulverizing the part of the tuckahoe accounting for 80-90% of total weight into fine powder; step 3: decocting the rest tuckahoe and the other seven crude drugs with water; and step 4: adding the fine tuckahoe powder, evenly mixing, drying, pulverizing into fine powder, screening, adding proper amounts of auxiliary materials, evenly mixing, pelletizing, drying, and sorting up the granules. The detecting method comprises the following steps: taking the pharmaceutical composition as the sample solution, and taking a pyrrosia lingua control medicine as the control medicine solution. The preparation technique and the detecting technique of the invention have the advantages of low cost and simple processing, reduce the heating time of the drugs, and are suitable for wide application in clinical treatment.

The invention discloses a low-shrinkage antibacterial modified polypropylene composite material and a preparation method thereof. The low-shrinkage antibacterial modified polypropylene composite material consists of the following raw materials in percentage by weight: 80 to 93.9 percent of polypropylene, 5 to 15 percent of zinc oxide whiskers, 1 to 3 percent of a compatilizer, 0.1 to 2 percent of an antioxidant and 0 to 3 percent of other auxiliaries. According to the invention, by utilizing the special stereoscopic tetrapod-shaped structure of the tetrapod-shaped zinc oxide whiskers, the low-shrinkage antibacterial modified polypropylene composite material is enabled to take the full isotropic strengthening and modifying effects, and mechanical property and size uniformity of a material and a product and tip nano activity are ensured; besides, the semiconductor characteristic of non-strict chemical proportion of the low-shrinkage antibacterial modified polypropylene composite material enables the low-shrinkage antibacterial modified polypropylene composite material to have an effect of releasing active oxygen, which is macroscopically shown as high-efficiency, broad-spectrum, durable antibacterial and environment purification effects. The tetrapod-shaped zinc oxide whiskers are added into the polypropylene, so that the prepared modified polypropylene material has low shrinkage and high size stability, and further has the antibacterial purification performance. The low-shrinkage antibacterial modified polypropylene composite material can be used for making automobile parts with a high requirement on the size of a product.

The invention discloses a preparing method of an antibacterial acrylic fiber color silk. Spinning, coloring and antibiosis finishing are finished in one step. The method comprises the steps of firstly, blending an antibacterial agent in a wet spinning dope, molding in coagulating bath by extruding to obtain primary acrylic fiber, and then performing anion dye gel coloring to prepare the antibacterial agent-loaded acrylic fiber color silk. The antibacterial function finishing and fiber coloring are realized in one step to prepare the acrylic fiber color silk with the antibacterial function, the antibacterial agent is introduced into polyacrylonitrile fiber by adopting a dope spinning method, the antibacterial effect is good and durable, and a post finishing process is reduced; the acrylic fiber color silk obtained by a gel dyeing method is good in color brightness, high in color fastness and capable of reducing dyeing sewage.

The invention discloses rice bran type piglet mixed feed and a preparation method thereof. The feed comprises corn, rice bran, 43% of bean pulp, wheat bran, DDGS, premix compounds, solid compound enzymes and Chinese herb additives. The feed has the advantages that on the basis of satisfying the nutrient requirements of piglets, the production cost of the feed can be reduced, the feed utilization rate can be raised, and the production property of the piglets can be improved.

The invention relates to a double-layer guided tissue regeneration membrane and a preparation method thereof. The double-layer guided tissue regeneration membrane is prepared by cross-linking a compact layer and a loose layer which are compounded together; the compact layer is prepared by blending polycaprolactone and chitosan and then adopting an electrostatic spinning method; and the loose layeris prepared by freeze-drying type I collagen. The method comprises the following steps: preparing a collagen gel solution from the type I collagen, and freeze-drying to obtain the loose layer; uniformly mixing the polycaprolactone solution with the chitosan solution to obtain a PCL/CS electrospinning solution, and preparing a compact layer on the surface of the loose layer by taking the PCL/CS electrospinning solution as a spinning solution through an electrostatic spinning method, so as to obtain a double-layer composite membrane; and crosslinking the double-layer composite membrane to obtain the double-layer guided tissue regeneration membrane. The double layers of the prepared material are combined more firmly, and the mechanical property is obviously improved; the compact layer is made of nanoscale superfine fibers, a fiber structure of an extracellular matrix is simulated, cell growth is facilitated, and a barrier effect can be effectively achieved.

The invention relates to an antibacterial coating which comprises a powder material, an alkyl ketene dimer or modified alkyl ketene dimer, an ammonium zirconium carbonate anti-hydration agent, a dispersing agent and a pH regulator, wherein the powder material comprises pigment and antibacterial components; the antibacterial components at least include chitosan, titanium dioxide and silver zeolite; in the powder material, the content of chitosan is 5-10% by mass, the content of titanium dioxide is 30-45% by mass, and the content of silver zeolite is 0.5-1.0% by mass; the addition amount of the alkyl ketene dimer or modified alkyl ketene dimer is 0.2-1.0% of the total mass of the powder material; the addition amount of the ammonium zirconium carbonate anti-hydration agent is 0.5-1.5% of the total mass of the powder material; the addition amount of the dispersing agent is 0.5-0.65% of the total mass of the powder material; the addition amount of the pH regulator is within a limit where the pH value of the antibacterial coating is 8.5-9.5. The cost of the antibacterial coating is low, and the antibacterial effect is stable. The invention also relates to an antibacterial paper.

The invention provides antibacterial paint, anticorrosive paint, an antibacterial and anticorrosive coating and an oil transportation pipeline. The antibacterial and anticorrosive coating comprises a slow-release antibacterial layer and a heavy anticorrosive layer, wherein the thickness of the heavy anticorrosive layer is 50-200 micrometers, and the thickness of the slow-release antibacterial layer is 20-80 micrometers. The inner wall of the oil transportation pipeline is coated with the heavy anticorrosive layer, and the surface of the heavy anticorrosive layer is coated with the slow-release antibacterial layer. Compared with the prior art, the slow-release antibacterial and anticorrosive oil transportation pipeline has the advantages that the defects that an oil transportation pipeline on the market is poor in antibacterial effect and high in cost, and an existing oil transportation pipeline with the antibacterial effect is short in antibacterial life and poor in anticorrosive property are overcome.

The invention relates to a health-care tea for promoting detoxifying and improving organism immunity. The health-care tea is prepared through mixing and processing four raw materials of Tibetan tea, red spinach, bamboo fungus and polygonatum sibiricum. The health-care tea has the advantages that the health-care tea integrates the effects of the Tibetan tea, the red spinach, the bamboo fungus and the polygonatum sibiricum, so that various effects can be further coordinated and improved, and the health-care tea can have the functions in promoting detoxifying, protecting the liver and improving organism immunity.

The invention discloses a preparation method of a nano-silver antibacterial agent, the nano-silver antibacterial agent, antibacterial plastics and a preparation method of the antibacterial plastics. The preparation method of the nano-silver antibacterial agent comprises the following steps: adopting a liquid-phase chemical reduction method, wherein the liquid phase is a hydroxyl-containing water-free organic solvent, and a protective agent and a penetrating agent can serve as reactive reduction agents; reducing Ag<+> into nano Ag particles at a certain temperature, and finally forming a stablesolution of a silver-containing complex with the protective agent, the penetrating agent and the solvent under a certain conditions, thereby obtaining the stable, colorless, transparent and water-free nano-silver antibacterial solution. The nano-silver antibacterial agent prepared by the method achieves an excellent antibacterial effect when applied to the antibacterial plastics.

The invention provides biological fresh-keeping agent effervescent granules or tablets. The biological fresh-keeping agent effervescent granules or tablets are prepared from the effective ingredients including, by weight, 15-50 parts of Pulullan, 1-10 parts of natamycin, 1-10 parts of nisin, 1-5 parts of kojic acid, 1-20 parts of Chinese herb extract and the like. During use, after 1 g to 5 g of the prepared effervescent granules or tablets are dissolved in 100 mL of water, a sample is treated in a spraying or soaking mode, and the sample is naturally dewatered. The biological fresh-keeping agent effervescent granules or tablets achieve an effective fresh-keeping effect on fresh food, fruits, vegetables and the like, and are convenient to package, store and use, and the effective ingredients of the biological fresh-keeping agent effervescent granules or tablets can be fully released.

The invention relates to a copper ion antibacterial nylon yarn for mesh fabric production. The mass fraction of copper ion containing antibacterial nylon fiber in the yarn ranges from 75% to 95%; the copper ion antibacterial nylon yarn has the biological antimicrobial effect on staphylococcus aureus or escherichia coli which is larger than or equal to 70% or Candida albicans which is larger than or equal to 60%, and harmful substance precipitation is not caused to the human body. Accordingly, the antibacterial yarn is prepared through a texturing or fiber blending process, the fiber has the excellent elastic and fluffy properties, the antimicrobial property of the copper ion containing antibacterial nylon fiber is maximized, and the phenomenon that due to the fact that the fiber is arranged in the yarn, the antibacterial effect is lowered is avoided; after texturing and fiber blending are conducted simultaneously, the fiber content is lowered, and the overall cost of the yarn is lowered.

The invention provides an antibacterial modal composite fabric and a preparation method thereof. The preparation method comprises the following steps of blending modal fibers and nano modified polyester fibers into first yarns, weaving the first yarns on a machine to form an inner surface layer and an outer surface layer, then blending modal fibers, apocynum venetum fibers, bamboo fibers and chitin fibers into second yarns, weaving the second yarns on the machine to form a middle layer, thereby obtaining the antibacterial modal composite fabric. The antibacterial modal composite fabric has excellent antibacterial performance, can still keep a high antibacterial rate after being washed with water, is soft in texture, and is particularly suitable for close-fitting clothes.

The invention discloses radix cynanchi paniculati paeonol with anti-bacterial and anti-inflammation activity as well as a preparation method and an application of radix cynanchi paniculati paeonol. The preparation method comprises steps as follows: 1), radix cynanchi paniculati residues are put in a drying oven at 45 DEG C, dried and smashed, and radix cynanchi paniculati residue powder is obtained; 2), the radix cynanchi paniculati residue powder is added to an aspergillus niger suspension after high-temperature sterilization and is fermented for 5 d at 30 DEG C; 3), the fermented radix cynanchi paniculati residue powder is added to an organic solvent to be left to stand for 10 h, the solvent is recovered under reduced pressure after solid substances are removed, and radix cynanchi paniculati paeonol is obtained. Radix cynanchi paniculati paeonol has an inhibition effect on both bacteria and fungi and can control the oxidative balance environment of skin cells, so that bacteriostatic and ant-inflammation effects are achieved.

The invention discloses novel anti-microbial edible aluminum foil. The anti-microbial edible aluminum foil comprises, by mass percentage, less than or equal to 0.16% of Si, 0.80-1.70% of Fe, 0.08-0.17% of Cu, less than or equal to 0.4% of Mn, less than or equal to 0.04% of Mg, less than or equal to 0.06% of Zn, less than or equal to 0.06% of Ti, 0.05-0.10% of Y and the balance Al and inevitable impurities, wherein each type of other impurity elements accounts for less than 0.05%, and the total of other impurity elements is less than 0.15%. The anti-microbial edible aluminum foil has excellentanti-microbial ability for bacteria and fungi; the anti-microbial rate is higher than 99.5%; the production procedure is simplified; pollution caused in the production process and the packaging process can be prevented; no precious metal is adopted in raw materials; and the production cost is lowered.

The invention discloses a preparation method and application of bamboo fiber micropowder. The method comprises the following steps: by using microporous bamboo fiber powder as a raw material, carrying out physical pulverization, and carrying out chemical treatment for modification, thereby obtaining the bamboo fiber micropowder with the fineness of 600 meshes or above. The bamboo fiber micropowder can be used as an industrial additive in paints and various coatings, can enhance the water resistance, moisture penetrability, aging resistance, ultraviolet resistance and mold resistance of the product, and can be added into a paint or varnish to deepen the color of the paint. The bamboo fiber micropowder can also be used in a sol addition material.

Disclosed are antimicrobial emulsions, products comprising the emulsions, and methods of use.

The invention relates to a nanoporous silver supported porous silver oxide nanorod composite material and a preparation method thereof. The composite material is a bar material, and comprises an amorphous matrix, nanoporous silver covering the amorphous matrix and porous silver oxide nanorods supported on the surface of the nanoporous silver and generated by in-situ oxidation; the amorphous matrixis a CuxZryAgz alloy ingredient, wherein x, y and z are separately an atomic percentage, and value ranges of the x, the y and the z satisfy relationships of 35 <= x <= 45, 35 <= y <= 45, 10 <= z <= 30, and x + y + z=100; the nanoporous silver has a layer thickness of 120-190 [mu]m, a tough band width of 20-120 nm and a pore size of 60-180 nm; and the nanorods gave a diameter of 0.1-1.5 [mu[m anda length of 0.5-12 [mu]m, and a size of nano holes in the nanorods is 10-100 nm. The composite material provided by the invention has a larger specific surface area, and the porous silver oxide nanorods are not easy to fall off, are easy to recycle after being used and can be recycled and reused; and the composite material has unique structural and performance advantages in the field of inorganicbacterium resistance.

Dietary health-care slimming tea granules belong to the field of nutritional foods and are quickly effective. The dietary health-care slimming tea granules are made of lotus leaf, hawthorn, konjac, oolong, Ganoderma lucidum, Angelica sinensis and the like, and have the effects of strengthening body resistance, restoring normal body function, promoting blood circulation, removing stasis, lipid lowering and weight reducing. The dietary health-care slimming tea granules are quickly effective, healthy and weight-reducing.