140results about How to "Has antibacterial and antibacterial effect" patented technology

The invention relates to a solid air freshening agent and a preparation method thereof and belongs to the field of air purification. Natural peppermint essential oil used by the solid air freshening agent can remove harmful substances in the air, so that the solid air freshening agent has effects of air purification and bacteria resistance and inhibition. Meanwhile, due to a variety of health efficacies of the natural peppermint essential oil, people can feel comfortable and fresh after inhaling aroma. Adopting activated carbon, the solid air freshening agent has the effect of adsorbing suspended particles and harmful gases such as formaldehyde in the air and is great in adsorption capacity. Taking carrageenan and agar as a carrier, the solid air freshening agent is safe and non-toxic. The solid freshening agent is simple in manufacture, safe and low in consumption.

The invention relates to staple food flour with balanced nutrition. The staple food flour is prepared from wheat flour, oat flour, potato flour, coix seed flour, millet flour, corn flour, sorghum flour, rice flour, glutinous rice flour, soy flour, mung bean flour, small red bean flour and navy bean flour. The production method comprises the following steps of a, respectively drying wheat, oat, unhusked rice, corn, sorghum, rice and glutinous rice, and grinding the dried wheat, the dried oat, the dried unhusked rice, the dried corn, the dried sorghum, the dried rice and the dried glutinous rice; b, respectively drying coix seeds, dried potatoes, soybeans, mung beans, small red beans and kidney beans, and performing superfine grinding; and c, pouring the powdery materials into a mixer, uniformly stirring the powdery materials so as to obtain mixtures, and loading the mixtures into bags so as to obtain finished products. The staple food flour with balanced nutrition, disclosed by the invention, is made by scientifically compounding 13 kinds of food materials in food grains, beans and potatoes, and is good in mouth feel; people can eat cereals every day in a balanced manner, nutrient components of the staple food flour can be sufficiently neutralized, a traditional habit that single wheat flour or single rice is eaten is changed, the constitutions and the immunity of people are enhanced, the purpose of increasing the physical health level of people is achieved, and the staple food flour disclosed by the invention can be used as staple food flour in daily life of people.

The invention discloses Tencel Jutecell dense weft clipped shell fabric which is characterized by being formed by warp yarns, ground weft yarns and two sets of flower weft yarns in different colors in an interwoven mode. The warp yarns are made of cotton yarns, the ground weft yarns are Tencil / Jutecell blended yarns, the color of the Tencil / Jutecell blended yarns is the same as the color of the warp yarns, the flower weft yarns are two kinds of cotton yarn piled yarns in different colors, a ground part texture is a rhombus texture, dot weft flowers are arranged at a ground part, each dot weft flower is formed by two dots in different colors, the two dots are arranged in a slant mode, the arrangement directions of two adjacent rows or lines of dots are opposite, a flower part texture is a twilling texture or warp face satin woven texture, patterns on the Tencel Jutecell dense weft clipped shell fabric are characterized in that a large-rhombus area formed by the dot weft flowers serves as a cycle, the density of the warp yarns of the Tencel Jutecell dense weft clipped shell fabric finished product is 520-580cm per 10 yarns, and the density of the weft yarns is 450-500cm per 10 yarns. The Tencel Jutecell dense weft clipped shell fabric is light, thin, breathable, comfortable and good in gloss, and solves the problem that weft crackiness is prone to being generated in weft clipped shell fabric.

The invention discloses a preparation method of cotton soft towel and the cotton soft towel. The preparation raw materials of the cotton soft towel comprise pure cotton fiber and soybean fiber. The preparation method of the cotton soft towel and the cotton soft towel have the advantages that through scientific treatment, the technical problems that the soybean fiber and the cotton fiber are different in fiber strength, fineness and the like, and blending is difficult, the primary color of the soybean fiber is ensured after blending, the blending performance of the cotton fiber and soybean fiber is effectively improved, non-woven cloth is prepared from blend fiber, the disadvantages of the insufficient strength of the soybean fiber and poor air permeability of the cotton fiber are overcome,and the cotton soft towel prepared from the non-woven cloth has better soft and skin-friendly performance.

The invention discloses antibacterial latex paint and a preparation method thereof and relates to the technical field of latex paint. The antibacterial latex paint is prepared from the following raw materials in parts by weight: 55 to 65 parts of acrylic emulsion, 35 to 45 parts of epoxy resin, 30 to 35 parts of polystyrene particle, 25 to 30 parts of modified bamboo pulp fiber, 20 to 25 parts ofantibacterial powder, 15 to 20 parts of nano particle coating component, 15 to 20 parts of brightening agent, 10 to 15 parts of modified bentonite, 10 to 15 parts of additive and 65 to 85 parts of water. The antibacterial latex paint disclosed by the invention has the advantages of stable combination with a wall body, better construction performance and better antibacterial effect.

The invention relates to a preparation method for nanometer tourmalinite powder. The preparation method comprises the following steps: (1) wet-process high-speed coarse grinding: with micron-order tourmalinite powder as a raw material, adding micron-order tourmalinite powder and water into a ball milling tank for coarse grinding so as to obtain coarsely-ground tourmalinite slurry, wherein a coarse grinding medium is zirconia grinding beads with particle sizes of 1 to 5 mm; (2) wet-process high-speed fine grinding: separating the coarsely-ground tourmalinite slurry prepared in the step (1) from the coarse grinding medium, the mixing the coarsely-ground tourmalinite slurry with a fine grinding medium, adding water for dilution and carrying out fine grinding in a ball milling tank so as to obtain nanometer tourmalinite slurry, wherein the fine grinding medium is zirconia grinding beads with particle sizes of 0.1 to 0.5 mm; and (3) freeze drying: adding the nanometer tourmalinite slurry obtained in the step (2) into a container, putting the container in a freezing dryer and carrying out drying under the conditions of a vacuum degree of 5 to 50 Pa and a temperature of -60 to -80 DEG C so as to obtain the nanometer tourmalinite powder.

The invention relates to the technical field of packing films, in particular to a matt packing film and a preparation method thereof. The matt packing film comprises the following raw materials: 60-80 parts of polyethylene resin, 20-30 parts of starch, 0.5-1.2 part of a coupling agent, 6-10 parts of an extinction complexing agent, 3-6 parts of an antibacterial toughening compound, 1.2-1.8 parts of filler, 0.4-0.7 part of ethylene-vinyl acetate copolymer, and 0.1-0.5 part of 2, 6-dihydroxy-benzoic acid, wherein the extinction complexing agent is organic silicone modified polyacrylate composite emulsion in which nano SiO2 is dispersed and nickel ZnO is doped; the antibacterial toughening compound is prepared by depositing tea polyphenol on a modified carbon nanotube, grafting chitosan and then finely modifying beta-cyclodextrin. The preparation method comprises the steps of weighing raw materials, pasting starch, stirring and mixing materials, blowing and molding to obtain the film. The preparation method is simple in processes, and convenient to operate; the prepared matt packing film is outstanding in extinction effect, outstanding in toughness, hard to tear, high in antibacterial and bacteriostatic effects, and hardly attacked by bacteria.

The invention discloses a natural air freshener and a preparation method thereof. The natural air freshener is prepared from a plant essential oil mixture, 0-0.2 parts of an emulsifier, 0.05-0.2 parts of a deodorant and 5-15 parts of absolute ethyl alcohol, wherein the plant essential oil mixture comprises components in parts by weight as follows: 0.5-0.8 parts of litsea cubeba oil, 1.5-2.5 parts of lemongrass oil, 0.5-0.8 parts of citronella essential oil and 0.5-0.8 parts of clove essential oil; the emulsifier is Tween, the deodorant is tea polyphenols, and the matrix of the air freshener is agar. In a word, the air freshener has the advantages of being natural, safe and capable of removing and inhibiting bacteria.

The invention relates to a fluoroplastic electret medical bandage which comprises a medical gauze and a cover film, wherein the cover film is formed by spraying a fluoroplastic electret adsorbent dispersion liquid on the medical gauze; and the adsorbent dispersion liquid is prepared by processing and refining fluoroplastics, is treated by an electret technology such as an electret corona method, a breakdown method or the like, is sprayed on the medical gauze to form the cover film, and is processed into electret medical bandages of different specifications. The electret medical bandage has the characteristics of bacterium resistance and inhibition, inflammation diminishing, infection prevention, dust and water prevention and good air permeability.

The invention provides a preparation method of a pure natural dried osmanthus. The preparation method comprises the following steps: (1) harvesting fresh osmanthus; (2) room temperature tedding: air drying dew and water on the surfaces of the fresh osmanthus in a cold, ventilated, room-temperature and aseptic condition, and removing impurities; (3) ultra low temperature quick-freezing storage: placing the osmanthus which have been processed in the step (2), into low-temperature freezing food containers in an aseptic condition, and placing the containers into a freezer with a temperature in the range of -22 DEG C to -18 DEG C; (4) low-temperature vacuum drying: drying the osmanthus by sublimation technology in the vacuum condition with the negative pressure of -0.04 to -0.06 MPa and the temperature of 10-30 DEG C until the water content of the osmanthus is less than or equal to 5%; (5) medium-temperature baking: placing the processed osmanthus into a drying device at 40-50 DEG C, heating and turning over until the water content is less than 3%, so as to prepare the pure natural dried osmanthus. The invention also discloses the pure natural dried osmanthus which is prepared by the above preparation method. The invention especially solves the problems such as fresh flower discoloration and capacity restriction.

The invention relates to the field of a textile fabric, in particular to a glove fabric with an antislip function. The glove fabric can effectively solve the problem that the antislip function of theexisting glove fabric is poor. The glove fabric structurally comprises a first plastic cement sheet layer, wherein the bottom of the first plastic cement sheet layer is provided with a plurality of needle-shaped bulges; the first plastic cement sheet layer is connected with a second plastic cement sheet layer through an adhesive tape; a chitin fiber layer is arranged at the upper side of the second plastic cement sheet layer; a bamboo charcoal fiber layer is arranged at the upper side of the chitin fiber layer. The glove fabric has the advantages that the structure is simple; the use is convenient; the glove fabric is suitable for being manufactured into various styles of gloves.

The invention relates to a water-soluble aseptic medical multifunctional lubricant and a preparation method thereof. The water-soluble aseptic medical multifunctional lubricant is composed of 0 to 7% of glycerin, 0.2 to 0.6% of carbomer 2020, 0.0 to 4.5% of sodium polyacrylate, 2.5 to 6.5% of 70% sorbitol, 0.05 to 0.18% of methylparaben and ethylparaben, 0.1 to 1.0% of phenoxyethanol, 0.2 to 4% of sodium hydroxide or triethanolamine, and 76.04 to 96.9% of purified water. The preparation method comprises following steps: firstly, methylparaben and ethylparaben are completely dissolved in phenoxyethanol; glycerin, and 70% sorbitol are added for uniform stirring; carbomer and sodium polyacrylate are added for stirring; deionized water is added slowly; and pH value is adjusted to be 6.5 to 7.0 with sodium hydroxide or triethanolamine so as to obtain the water-soluble aseptic medical multifunctional lubricant. The preparation method is simple; the raw materials are mild for skin and mucous; bacteria and virus can be killed; cross infection is avoided; and the water-soluble aseptic medical multifunctional lubricant can be widely used for common examination diagnosis and ultrasonic assisted diagnosis and treatment.

The invention discloses latex containing a graphene-zinc oxide compound. The latex is prepared from the following components in parts by weight: 100 parts of natural latex, 0.2-0.5 parts of the graphene-zinc oxide compound, 0.2-1 part of a stabilizer, 0.8-2 parts of an anti-aging agent, 1-5 parts of a vulcanizing agent, 0.2-1 part of a dispersing agent and 0.2-1 part of an accelerator. The graphene-zinc oxide compound is uniformly dispersed in the latex, can improve mechanical properties of the latex product, improve durability and aging resistance and enhance toughness and virus barrier property, and has antibacterial and bacteriostatic effects.

The invention relates to a production method for traditional Chinese medicine fertilizer. A traditional Chinese medicine extract solution or traditional Chinese medicines is or are added to fertilizer, and the traditional Chinese medicine fertilizer is prepared. With addition of the traditional Chinese medicine extract solution or the traditional Chinese medicines, the fertilizer has bacteriostatic and bactericidal effects and can control crop diseases.

The invention discloses an antibacterial food box, which can be used as a lunch box. According to the invention, polylactic acid, graphene, chitosan, polyvinyl alcohol, starch and calcium carbonate are respectively weighed, and sequentially added to the extruder, wherein the temperature of the extruder is controlled to be 200-220 DEG C, after 30 minutes, a melt is extruded through the extruder, drawn and cooled, and cut to form an extrudate, and the extrudate is injected into an injection molding machine for injection moulding to form the food box. The food box prepared by the invention not only has biodegradability, but also has high mechanical strength and tensile strength, has antibiosis and bacteriostasis effects, and is safe and environmentally friendly.

The invention discloses green and environment-friendly composted straw composite fertilizer. The composite fertilizer is prepared from raw materials in parts by weight as follows: 85-95 parts of inorganic fertilizer raw materials, 10-20 parts of composted straw, 6-15 parts of corncob powder, 10-20 parts of cassava residues, 1-5 parts of fish bone meal, 2-8 parts of guano, 5-12 parts of pine needlemeal, 6-16 parts of wormcast, 0.1-0.6 parts of a soil improvement microbial agent, 8-16 parts of a soil improvement carrier, 0.5-1.5 parts of propylene glycol alginate, 2-4 parts of an antibacterialcoating agent and 1-2 parts of lignin. The antibacterial coating agent is prepared with a following process: peanut protein powder, citric acid and an ethanol solution are mixed uniformly, sodium hydroxide is added to regulate pH of the system to 4-6, microcrystalline cellulose, polyethylene glycol, melted beewax and nisin are added and stirred, and the antibacterial coating agent is obtained. Thecomposite fertilizer contains comprehensive nutrition and has long-lasting fertilizer efficiency, promotes release of soil nutrients, and can also improve physical properties of soil and increase soil aggregate structure.

The invention discloses a sugarcane vinegar preparation method capable of improving vinegar aroma. The sugarcane vinegar preparation method comprises the following steps: (1) carrying out squeezing treatment on sugarcanes; (2) filtering; (3) blending: adjusting the mass percent content of sugar in fruit pulp to 20 to 30 percent by utilizing plant polysaccharides; (4) sterilizing; (5) carrying outalcohol fermentation; (6) filtering; (7) carrying out acetic acid fermentation: fermenting for 10 to 20 days by utilizing mixed fermentation bacteria of acetic acid bacteria and saccharomycetes; (8) carrying out fine filtering, ageing, blending and sterilizing: after carrying out the fine filtering by adopting acetate fibers, placing a mixture into an alternating-current tablet electric field environment with the electric field treatment dosage of 1.5 to 4.5kV / cm and ageing for 2 to 3 months; carrying out pasteurization to obtain sugarcane vinegar. The sugarcane vinegar prepared by the preparation method has the rich vinegar aroma and a pure, tasty and coordinated mouthfeel.

A breathable instant-absorbing health-care diaper for babies belongs to the technical field of diapers for babies and consists of four material layers. A first material layer which clings to the skin of a baby is a dry and comfortable meshed surface layer and is woven by cotton threads and fibers in a blended manner, a second material layer is a water absorbing layer and is made of water absorbent resin, a third material layer is an anti-bacterial health-care layer, carbon fibers with modified nano silver ions are added with nano tourmaline to form the anti-bacterial health-care layer, and a fourth material layer is a breathable isolation layer and is made of non-woven fabrics. The water absorbent resin of the water absorbing layer includes sodium polyacrylate, rottenstone is added in the sodium polyacrylate, and mass ratio of the sodium polyacrylate to the rottenstone is 4:3. The breathable instant-absorbing health-care diaper for babies has the advantages that cotton and fiber blended fabrics not only feel soft like the cotton threads, but also feel cool like the fibers, high water absorption of the sodium polyacrylate can guarantee that urine is absorbed completely, the rottenstone is light in weight and high in porosity, is soft and porous, can absorb water instantly and is high in water absorption ability, the carbon fibers with the modified nano silver ions have a bacteriostasis function, and the nano tourmaline can emit anion and has a health-care effect.

The invention discloses a nutrient solution for soilless culture of tomatoes. The nutrient solution comprises the following components in percentage by weight, 50-100ppm of magnesium sulfate, 30-50ppm of manganese sulfate, 60-80ppm of copper sulfate, 60-80ppm of ferrous sulfate, 40-70ppm of zinc sulfate, 40-70ppm of ammonium molybdate, 20-30ppm of boric acid, 50-90ppm of potassium chloride, 30-50ppm of sodium chloride, 0.5-1% of urea, 0.1-0.5% of EDTA (ethylene diamine tetraacetic acid), 0.1-0.5% of gromwell extract and 0.1-0.5% of herba houttuyniae extract. Compared with the prior art, the nutrient solution for soilless culture contains sufficient nutrients, has antibacterial and bacteriostatic effects, promotes the robust growth of tomatoes, increases the output and improves the quality.

The invention relates to the field of textile fabric, in particular to a cotton cap with the adjustable temperature for children. The cotton cap can effectively solve the problem that the temperatureof an existing cotton cap cannot be adjusted. The cap structurally comprises a linen fiber layer at the inner side, a polyester fiber layer is arranged at the outer side of the linen fiber layer, andthe outer side of the polyester fiber layer is connected with a chitosan fiber layer through a hook-and-loop fastener; the chitosan fiber layer is connected with a denim fabric layer at the outer side; horizontal first through holes are formed in the denim fabric layer and the chitosan fiber layer, cover sheets are arranged on the denim fabric layer at the outer sides of the first through holes, N-electrode magnetic sheets are arranged at the inner sides of the cover sheets, and S-electrode magnetic sheets are arranged on the denim fabric layer. The cotton cap with the adjustable temperature for children is simple in structure, convenient to use and suitable for multiple occasions.

The invention discloses an antibacterial environment-friendly liquid laundry detergent. The antibacterial environment-friendly liquid laundry detergent includes the following components by weight: 13-20 parts of sodium laurinol polyether sulfate, 10-15 parts of polyethylene glycol 6000 distearate, 1-3 parts of a color-protecting agent, 0.5-1 part of tea tree essential oil, 0.2-0.6 part of geraniumessential oil, 1-3 parts of a patrinia herb extract, 0.2-0.6 part of a honeysuckle extract, 0.2-0.6 part of a dandelion extract, 3-7 parts of fatty acid from flax seed cakes, 15-22 parts of a co-solvent, 8-13 parts of an enzyme preparation, 3-6 parts of a non-ionic surfactant, 2-4 parts of an anionic surfactant, 2 to 4 parts of a brightening agent and 50 to 75 parts of deionized water. The liquidlaundry detergent of the invention has the advantages of no phosphorus, strong detergency, no damage to fabrics, softness, low residues, environment friendliness, etc.; and the added natural bactericidal ingredients, i.e., patrinia herb, honeysuckle flowers and dandelion, have broad-spectrum antibacterial effect.

The invention discloses a drug applicator, comprising a drug injector and a drug applicator; the inner part of the drug injector is provided with a hollow cavity, and one side of the bottom part of the drug injector is provided with a handle; one side of the hollow cavity is provided with a drug outlet, and a piston is glidingly connected to the hollow cavity inside, and the bottom part of the piston is connected to one side of the drug injector through a spring; one side of the handle is provided with a moveable connecting piece, and the moveable connecting piece is connected with the piston and the handle through a rotary shaft; the top part of the drug injector is provided with a drug inlet, an infusion tube is inserted to the drug outlet, and the other end of the infusion tube is connected with the drug applicator; the drug applicator includes a circular base and a drug feeding pipe, and the surface of the drug applicator is added with a nano-silver antibiosis coating; the infusion tube enters the drug feeding pipe through the circular base. The drug applicator is simple in structure, new in design, convenient to operate, powerful in functions, and very good in popularizing value.

The invention provides hot air non-woven fabrics capable of fast and efficiently guiding flow and inhibiting bacteria. A fiber composite layer is formed by compounding an upper latex layer, a mixed fiber layer and a lower latex layer, and the lower fiber layer is formed by compounding a compact fiber layer at the inside and a sparse fiber layer at the outside, the mixed fiber layer is formed by uniformly mixing bamboo charcoal fibers and thermoplastic synthetic fibers with stirring, the formed lower fiber layer has strong permeability due to the sparse fiber layer, the dense fiber layer has astrong capillary phenomenon, the sparse fiber layer can quickly guide a flow of water and other liquids, the dense fiber layer can quickly absorb and firmly grasp water and other liquids, and thus thecompact fiber layer and the sparse fiber layer cooperate with each other to achieve efficient and fast flow guiding and absorption purposes of liquids. The mixed fiber layer has bacterium inhibitingand resisting effects, environment protection effects and high liquid and moisture absorption effects of bamboo charcoal fibers. The present invention also provides a production method for the hot airnon-woven fabrics capable of fast and efficiently guiding a flow and inhibiting bacteria.

The invention relates to the field of textile fabrics, in particular to a carpet fabric capable of emitting fragrance. A hollow cavity which can emit fragrance is formed in the carpet fabric, and theproblem that traditional carpet fabric has no a fragrance emitting function can be effectively solved. The carpet fabric structurally comprises a fabric main body, wherein the fabric main body comprises a bamboo charcoal fiber layer arranged at the upper side; a first plastic sheet layer is arranged at the lower side of the bamboo charcoal fiber layer; the hollow cavity is formed in the lower sideof the first plastic sheet layer; first through holes communicated with the hollow cavity are respectively embedded in the bamboo charcoal fiber layer and the first plastic sheet layer; rubber caps are embedded at the upper end parts of the first through holes; a plurality of second through holes are formed in the rubber caps; a second plastic sheet layer is arranged at the lower side of the hollow cavity. The carpet fabric disclosed by the invention is simple in structure and convenient to use, and is suitable for various places.

The invention discloses a jade fiber fabric. The jade fiber fabric is manufactured from, by weight, 7-9 parts of nanometer chitin, 35-45 parts of alginate fiber, 5-10 parts of jade fiber, 1-3 parts of jade powder, 11-13 parts of coconut carbon fiber, 15-20 ml / L of a traditional Chinese medicine antibacterial solution, 11-13 parts of milk protein fiber, 12-18 parts of modal fiber, 2.5-15 g / L of micro-nanometer oxide, 5-8 parts of jute fiber, 10-12 parts of naked spandex yarn, 3-5 parts of menthol crystals, 3-4 parts of huge end eucalyptus, 3-5 parts of bamboo charcoal powder, 3-3.5 parts of inflaming retarding polyester fiber, 22-35 parts of refined sulfur cotton, 0.1-0.2 part of vanillic aldehyde, 0.1-0.2 part of thymol and 29-41 g / L of a Gemini positive ion softening agent. The jade fiber fabric is good in sterilizing effect, light in mass and good in skin friendliness, and has the mould resistance, ultraviolet resistance and flame retardance.

The invention discloses a fresh ginger soilless culture nutrient solution. The fresh ginger soilless culture nutrient solution is prepared from, by weight, 1-3 ppm of manganese nitrate, 0.3-1 ppm of copper chloride, 0.5-2 ppm of ammonium molybdate, 3-6 ppm of boric acid, 5-8 ppm of zinc nitrate, 10-20 ppm of ferric chloride, 100-200 ppm of magnesium nitrate, 300-500 ppm of calcium nitrate, 0.5-1% of monopotassium phosphate, 0.1-0.5% of EDTA, 0.01-0.05% of lithospermum extracts and 0.01-0.05% of houttuynia cordata extracts. Compared with the prior art, the fresh ginger soilless culture nutrient solution contains sufficient nutrients, has the bacteria resistance and bacteriostasis effect, promotes fresh ginger growth and robustness, increases the yield and improves the quality.

The invention discloses a gynecological patch and a manufacturing method thereof. The gynecological patch is composed of a woven fabric layer and silicon rubber sticking pieces, wherein the woven fabric layer is filled with self-heating materials; the silicon rubber sticking pieces are stuck outside the woven fabric layer; the self-heating materials are composed of, by weight part, 10-30 parts ofvinyl copolymer thermoplastic elastomer, 5-18 parts of diatomite, 4-12 parts of activated carbon, 6-16 parts of iron powder, 8-20 parts of zinc powder, 5-17 parts of wormwood powder, 4-10 parts of ytterbium oxide powder, 8-16 parts of cerium oxide powder, 5-12 parts of zirconium silicide powder, 1-5 parts of carbon fiber, 4-16 parts of graphene oxide, 1-3 parts of nano-silver powder, 2-8 parts ofsalt and 10-20 parts of water. The manufacturing method of the gynecological patch is simple; the manufactured gynecological patch can achieve the aim of self-heating for heating a body part to be patched and promote wound healing of a puerpera, and meanwhile, is long in continuous heating time.

The invention relates to the technical field of fish culture, in particular to a fishpond oxygen increasing agent and a preparation method thereof. The fish pond oxygen increasing agent is mainly prepared from, by weight, 70-75 parts of oxygen supply agent, 5-8 parts of bactericidal ingredient, 7-10 parts of water quality modifier and 10-15 parts of bonding ingredient. The components are combined together by adding the bactericidal ingredient and the water quality modifier in the oxygen supply agent and using starch as a binder to prepare the fishpond oxygen increasing agent, the oxygen content in water can be stably and effectively increased by combining oxygen supply, harmful germ killing and water quality improvement, a fish growth environment is improved, the survival rate of fish is improved, and fish growth is promoted.

The invention relates to a preparation method of a fruit fresh-keeping agent. The preparation method comprises the following steps of adding Chinese herbal medicines into a juice extractor to extract juice; extracting residues after extracting by a percolation method and a boiling method; filtering, so as to obtain an extracting liquid; mixing the extracting liquid and juice, and adding a film forming matter, so as to obtain the fruit fresh-keeping agent. The fruit fresh-keeping agent has the advantages that the obvious bacteria-inhibiting effect is realized, the volatization of water in fruits is prevented, and the function of releasing respiration of fruits is realized.