38results about How to "Efficient antibacterial effect" patented technology

The present invention is recompounded microbe germicide for preventing and controlling banded sclerotial blight and green smut of rice. The recompounded microbe germicide is recompounded through thefermentation culture of Bacillus subtilis and recompounding the fermented liquid with certain content of Bacillus subtilis and Jinggangmeisu. It is used in preventing and controlling banded sclerotial blight and green smut of rice in field via utilizing the complementary superiority of Bacillus subtilis and Jinggangmeisu. It has high functions of preventing and controlling banded sclerotial blight and green smut of rice, less influence on rice quality, stable germicidal effect and long preservation period.

The invention discloses an antibacterial natural latex product based on a quaternary ammonium salt antibacterial agent and a preparation technology of the antibacterial natural latex product, and belongs to the technical field of latex materials. The antibacterial natural latex product is prepared from the following components by weight: 90 to 100 parts of natural latex, 1 to 9 parts of sulfur, 1 to 5 parts of a vulcanization accelerator, 1.5 to 2 parts of an anti-aging agent, 1 to 6 parts of zinc oxide, 0.5 to 2 parts of sodium fluosilicate, 1 to 3 parts of potassium castorate, 0.1 to 2 parts of potassium oleate, 0.5 to 1 part of potassium permanganate and 0.1 to 3 parts of the quaternary ammonium salt antibacterial agent. The antibacterial natural latex product is based on the antibacterial characteristic of a low-concentration quaternary ammonium salt compound. The adopted quaternary ammonium salt compound has the advantage of stable performance, and the compound is tightly combined with latex polymer molecules and cannot permeate the skin of people or an animal by changing the physicochemical property of material surface. The latex product prepared in the invention has the advantages of high antibacterial property, hygiene, high practicability and the like, and has a broad market prospect.

The invention discloses a natural plant extraction composition for cosmetic anti-corrosion. The composition is prepared by compounding 2 to 8 kinds of antibacterial and antifungal plant extracts, and the weight percentage of each kind of extract is 10 to 80 percent. The prepared natural anti-corrosion composition has the advantages that through the matching of plant extracts with antibacterial and antifungal effects, the effects of simultaneously damaging positions of bacterium and fungus cytomembranes, cell walls, nucleic acid, zymoprotein and the like are achieved; the antibacterial capability of the natural plant extraction composition is enhanced, so that the strong-effect and broad-spectrum antibacterial effects can be achieved. The natural anti-corrosion composition is obtained through compounding plant extracts; the antibacterial effect is high; the antibacterial spectrum is broad; the composition can be used as a preservative to be safely and efficiently applied to the fields of cosmetics and the like.

The invention relates to a fresh-keeping agent for traditional non-fermented bean products. The fresh-keeping agent comprises a fresh-keeping agent A and a fresh-keeping agent B, wherein the fresh-keeping agent A comprises the following raw materials in percentage by weight: 0.05-0.1 percent of nisin, 0.05-0.1 percent of potassium sorbate, 0.01-0.05 percent of vitamin C and 99.75-99.89 percent of water; the fresh-keeping agent B is a 1 percent lactic acid or citric acid or a acetic acid aqueous solution which respectively contains 0.8-1.5 weight percent of chitosan; and the fresh-keeping agent A and the fresh-keeping agent B are respectively boiled for 1-3 minutes, cooled and then stored at 0-4 DEG C for later use. A fresh-keeping method comprises the following steps of: soaking a traditional non-fermented bean product in the fresh-keeping agent A for 5-10 minutes or spraying the fresh-keeping agent A on the surface of the bean product and draining for 0.5-1 minute; and soaking the bean product in the fresh-keeping agent B for 3-5 minutes or spraying the fresh-keeping agent B on the surface of the bean product and draining for 3-5 minutes. The invention can ensure that the traditional non-fermented bean product i.e. palletizing bean curds keep fresh for 8 days and guarantee the quality for about 10 days and has longer fresh-keeping time and no toxic and side effects. The fresh-keeping method matched with the fresh-keeping agent has simple operation, low cost and wide application.

The invention discloses a plant protection method for increasing yield of virus-free potato breeder's stock. The method comprises the steps: (1) constructing production facilities; (2) carrying out environment disinfection; (3) carrying out matrix preparation and pretreatment; (4) carrying out tissue culture seedlings grading and root dipping treatment; (5) carrying out cuttage transplanting; (6) carrying out field management; (7) carrying out water management; (8) carrying out seedling pressing management; (9) carrying out fertilizer application management; and (10) carrying out harvesting and sorting. According to the method, a nutritional rooting agent, which is prepared through mixing 1.25g of Tradecorp, 7.5ml of Feifan, 30g of ANIRAM, 30g of lizhi and 15L of clean water, is used for carrying out root dipping treatment on tissue culture seedlings, optimal water management is implemented according to different requirements of the tissue culture seedlings on moisture at a seedling recovering stage, a potato tuber expanding stage, a small potato harvesting stage and a creeping stem forming stage, and liquid nutritional fertilizers for different growth needs are applied in an irrigation manner after the tissue culture seedlings are planted, so that the reasonable control on growth, sterilization and bacteriostasis is promoted, and the aims of increasing yield and improving quality are achieved.

The invention relates to the technical field of microorganisms, in particular to brevibacillus laterosporus S62-9 and an application thereof. The brevibacillus laterosporus strain S62-9 has the advantages that the brevibacillus laterosporus strain S62-9 is wider in spectrum and more efficient in antibacterial activity, good antibacterial activity is realized on common animal pathogenic bacteria and plant pathogenic bacteria; livestock and poultry pathogenic bacteria which comprise streptococcus suis, salmonella enteritidis, salmonella typhimurium, salmonella paratyphi B, shigella, yersinia enterocolitica, enterobacter sakazakii, klebsiella pneumoniae as well as phytopathogens including fusarium wilt pathogens, root rot pathogens, stem rot pathogens, rice sheath blight pathogens and apple trichothecium roseum heart disease pathogens all have efficient antibacterial activity; the sterilization composition can be widely used for preventing and treating pathogenic bacteria infection of animals such as livestock and poultry and plant crops.

Derivative polypeptide derived from a grass carp interferon and an application of the derivative polypeptide. An amino acid sequence of the derivative polypeptide is as shown in SEQ ID NO:1; the interferon-derived polypeptide has a high-efficiency antibacterial effect and can take effect against drug-resistant Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Streptococcus agalactiae, Vibrio fluvialis or Aeromonas hydrophila. The interferon-derived polypeptide is less toxic to eukaryotes and can effectively reduce the mortality of mice in a mouse disease model caused by pathological bacteria. The interferon-derived polypeptide which is small in molecular weight is easily synthesized and has a good application value.

The invention belongs to the technical field of plastic films, and particularly relates to a preparation process of an antibacterial film, which specifically comprises the following steps of taking 1-2 parts by weight of nano-silver bacteriostatic agent, 100-120 parts by weight of polyethylene resin blend, 2-4 parts by weight of modified lignocellulose, 0.5-1 part by weight of silver-loaded nano-zinc oxide, 1-2 parts by weight of plasticizer, 0.05-0.1 part by weight of dispersant and 0.1-0.6 part by weight of antioxidant, and mixing, and granulating, drying and blowing the mixed materials to prepare the antibacterial film. The invention provides the film with good antibacterial performance, the film also has good tensile strength, and the preparation process of the antibacterial film is simple and suitable for large-scale industrial production.

The invention discloses streptomyces thiogambosus, the preservation number of the streptomyces thiogambosus is GDMCC NO: 61327, and the streptomyces thiogambosus is classified and named as Streptomyces GXMD-hs-43. The strain is simple to screen and easy to culture, and the inventor also establishes a corresponding culture method. Researches show that the GXMD-hs-43 strain fermentation liquor has a very good prevention and treatment effect on citrus green mold, and the inhibition effect of the GXMD-hs-43 strain fermentation liquor on penicillium digitatum reaches up to 94.81% or above. Besides, a toxicology experiment of the GXMD-hs-43 strain shows that the GXMD-hs-43 strain is a non-toxic microorganism, so that the GXMD-hs-43 strain also has the characteristics of good ecological safety and the like, and secondary pollution cannot be caused in the use process. The discovery of the strain enriches the available microbial resources in China, and the strain has the advantages of stable antibacterial effect, high efficiency and environmental friendliness, and has good application prospects in prevention and treatment of citrus green mold.

The invention discloses a sterilization composition containing pyraclostrobin and wuyiencin. The sterilization composition contains two active components, namely pyraclostrobin and wuyiencin, wherein the weight ratio of pyraclostrobin to wuyiencin is (10 to 1)-(1 to 10). The invention also discloses application of the sterilization composition containing pyraclostrobin and wuyiencin to prevention and treatment of powdery mildew of grapes and strawberries. After being combined, pyraclostrobin and wuyiencin achieve an advantage complementation effect, so that the high-efficiency bacteriostasis effect is achieved, generation of resistance is delayed, the use amount is reduced, the safety quality is improved, and the production cost is lowered.

The invention relates to an antibacterial peptide CSTC24 and application thereof, in particular to an antibacterial peptide.The antibacterial peptide is characterized in that the sequence of the antibacterial peptide is shown in SEQ ID No.1.The antibacterial peptide can effectively kill three fish pathogenic bacteria of vibrio vulnificus, micrococcus luteus and staphylococcus aureus, and infectious spleen and kidney necrosis viruses.The antibacterial peptide is excellent in effect through experimental verification.

The invention relates to a high-efficiency compound food preservative and a preparation method thereof. The preservative comprises the following raw materials in parts by weight: 5-8 parts of lotus leaves, 2-4 parts of bamboo leaves, 1-2 parts of honeysuckle flowers, 1-2 parts of cassia seeds, 2-3 parts of table salt and 1-2 parts of auxiliary agents. The preparation method comprises the followingsteps: pretreatment of raw materials; preparation of a lotus leaf extracting solution; preparation of a bamboo leaf extracting solution; preparation of a honeysuckle flower extracting solution; preparation of a cassia seed extracting solution; mixing, compounding and concentration; addition of the auxiliary agents; addition of the table salt; and drying treatment. The food preservative is prepared from natural, harmless and low-cost raw materials, so the cost of the preservative is reduced and also the defect of health hazard of traditional preservatives is solved; and the preparation methodof the compound food preservative provided by the invention is simple and easy in operation, and the compound food preservative is free of substances harmful to a human body, colorless and tasteless,does not affect the mouthfeel of food, and has good safety, relatively low cost of investment, suitability for mass production and extensive prospects of application.

A multi-effect comprehensive preservation method suitable for postharvest storage of citrus fruits comprises the following steps: (1) preparation of a biological antibacterial film coating agent: the biological antibacterial film coating agent comprises the following components in percentage by mass: 1%-5% of chitosan oligosaccharide, 0.5%-2% of carboxymethyl chitosan, 1%-8% of a Chinese herbal medicine extract, 0.5%-2% of a coalescing agent, 0.5%-1% of a preservative and the balance of water; and sequentially adding and dissolving the substances into water, and fully stirring until the substances are uniformly mixed; (2) film coating treatment: performing film coating treatment on the cleaned fresh fruits by adopting the biological antibacterial film coating agent obtained in the step (1); (3) drying treatment: drying the film-coated fresh fruits obtained in the step (2), and forming a film on the surfaces of the fresh fruits by using the biological antibacterial film coating agent; and (4) spontaneous micro-controlled atmosphere treatment: putting the fresh fruits subjected to film formation in the step (3) into a self-made spontaneous micro-controlled atmosphere bag for storage. Based on the synergistic effect of two technologies of biological multi-effect antibacterial coating and spontaneous micro-controlled atmosphere, advantage complementation is achieved, and the final purposes of storage and fresh keeping of the picked fruits and prolonging of the shelf life are achieved.

A wound healing composition and method for treating acute and chronic wounds and skin conditions includes a wound healing composition or formulation including a mixture of buckwheat honey, methylglyoxal and bacitracin.

The present invention discloses an application of derivatives containing arylpyrazole coumarin skeletons in inhibiting pathogenic fungi in edible mushrooms. The pathogenic fungi are penicillium chrysogenum, trichoderma viride, aspergillus versicolor, trichoderma, or aspergillus niger. The derivatives are safe, non-toxic, and good in effects of inhibiting pathogenic fungi, natural plant extracts containing structures of biological active ingredients for inhibiting pathogenic microorganisms, preventing microorganisms, inflammation and cancers, etc. are used, and the derivatives can reach effectsof extending shelf life of fruits and vegetables without using chemical preservatives.

The invention discloses a flower-like zinc phosphate nanoparticle antibacterial material and a preparation method and application thereof, belonging to the technical field of anticorrosive materials.According to the preparation method, 2,4-dihydroxypyrimidine-5-carboxylic acid (isoorotic acid) is used for regulating and controlling a reaction of sodium phosphate with zinc salt, a formed nano-particle material is separated out of a solution in a precipitate form, and the flower-like zinc phosphate nano-particle antibacterial material is prepared through centrifugation, supernatant removal, washing and freeze drying. According to the antibacterial material prepared by the invention, the specific surface area of zinc phosphate is increased by a flower-shaped structure, so the antibacterial material can contact more microbial thalli, achieves a more obvious antibacterial effect and has good inhibition effects on Bacillus subtilis, Staphylococcus aureus, Salmonella enteritidis and a plurality of antibiotic-resistant strains; meanwhile, the material has the characteristics of low toxicity, small side effect, good biological safety and the like; and the preparation method has the advantages of simple preparation process, high operability and good market application prospects.