92results about How to "Antibacterial and antiseptic" patented technology

The invention relates to a coating material and a preparation method thereof, and in particular relates to an environment-friendly interior wall coating material with calcined shell powder as base stock and a preparation method of the environment-friendly interior wall coating material. The environment-friendly interior wall coating material comprises the following components in percentage by weight: 44-53 percent of calcined shell powder, 7.0-9.0 percent of starch gel, 7.0-9.0 percent of cellulose gel, 7.0-9.5 percent of styrene-acrylic emulsion, 1.0-2.0 percent of glycol, 1.0-2.0 percent of dispersing agent, 0.5-1.5 percent of coalescing agent, 0.5-1.5 percent of defoaming agent, 0.2-0.6 percent of multifunctional additive and the balance of water. The coating material produced by using the preparation method not only accords with basic standards of national coating materials, is resistant to alkali, scouring and low temperature and good in covering effect and construction effect, but also has the function of better adsorbing harmful gases, such as formaldehyde and is an environment-friendly purely natural nuisanceless interior wall coating material.

The invention discloses tea preserved fruit and a preparation method thereof. The tea preserved fruit is prepared from the following raw materials in part by weight: 1 to 10 parts of tea soup, 0.1 to 10 parts of fresh fruit, 0.1 to 10 parts of xylitol, 0.1 to 3 parts of fructooligosaccharide, 0.1 to 5 parts of honey and 0.1 to 1 part of salt. The preparation method comprises the following steps of: crudely smashing a tea raw material and soaking the material in boiled water to prepare the tea soup (the weight ratio of the tea to water is 1:2-10); adding the xylitol, the fructooligosaccharide and the honey into the tea soup and fully dissolving the mixture to prepare sugar soaked solution for later use; cleaning the fresh fruit; blanching the cleaned fruit; salting the blanched fruit; soaking the salted fruit in VC solution and putting the soaked fruit into the sugar soaked solution; soaking the soaked fruit in the sugar soaked solution in vacuum; rinsing the sugar soaked fruit; drying the rinsed fruit at a low temperature; sterilizing the dried fruit; and packaging the sterilized fruit in vacuum to prepare the tea preserved fruit. The tea preserved fruit combines tea flavor with fruit flavor, completely keeps effective ingredients, has nutrient health-care ingredients of the tea and the fresh fruit, improves the mouthfeel of the fresh fruit, overcomes the defect of high sugar content of conventional preserved fruit and has more scientific and reasonable raw material blending. The preparation method is simple and practical.

The invention discloses a comprehensive preservation method of cooled pork. According to the method, the cooled pork is preserved by using a biological fresh-keeping agent in combination with modified atmosphere packaging. The method comprises the following steps of: preparing a biological fresh-keeping agent; removing fascia and fat of the cooled pork, cutting the pork to be square pieces; immersing the cut pork pieces in the biological fresh-keeping agent and draining off; and packaging a modified atmosphere packaging box and storing the cooled pork. By fully utilizing the inoxidizability, the antibacterial activity, the film-forming property and the synergistic effect of natural substances and in combination with modified atmosphere packaging, the comprehensive preservation method of cooled pork with a remarkable preservation effect is obtained. The shelf life of a sample can be prolonged to be more than 19 days from 6 days for refrigeration preservation, and high quality of the cooled pork is kept. According to the method, the use value is high and the development prospect is bright.

The invention discloses a preparation method of ultraclean antifouling ceramic tiles. The preparation method comprises the steps of preparation of raw materials, preparation of slurry, preparation of powder, powder spreading, pressing formation, drying of tile blanks, kilning, antifouling processing, grading examination and packaging and warehousing, wherein products are classified and packaged by grades and color numbers, and are stacked in a warehouse by areas. The surfaces of ceramic tile bodies are sequentially coated with inorganic and organic two antifouling materials, so that the tile bodies are effectively protected, the surface gloss of the tile bodies is reinforced, and the influence to the tile body surface effect from the ordinary dirt is prevented. The preparation method has the characteristics of super cleanness, dirt prevention, bacteria resistance, corrosion prevention, high gloss and environmental friendliness, prolongs the usage period of the tile bodies, and has the advantages of low production cost and convenience in use.

The present invention relates to a red yeast rice biscuit and a preparation method thereof, and belongs to the technical field of food processing. The red yeast rice biscuit is mainly composed of the following components in parts by weight: 100 parts of flour, 1 part of edible salt, 5 parts of milk powder, 0.5 part of ammonium bicarbonate, 0.5 part of baking soda, 22 parts of water, 25 parts of eggs, 10-20 parts of vegetable oil, 1-3 parts of red yeast rice and 8-16 parts of white granulated sugar. The preparation method includes the following steps: grinding the red yeast rice into powder, mixing all the components, stirring and preparing dough, keeping the dough stand still, rolling the dough into biscuits, and baking and naturally cooling the biscuits. The red yeast biscuits not only introduce the safe, nutritious and health benefiting effects of the monascus purpureus pigment, but also can optimize the matching ratio of the monascus purpureus pigment, vegetable oil and white granulated sugar, thus the biscuits have smooth appearance, better luster, and moderate crispy and soft mouthfeel, and emit better fragrance.

The invention discloses a ceramic filter core. The ceramic filter core comprises the following ingredients of: by weight, 60-70% of diatomite, 5-20% of an alumina powder, 5-10% of a zeolite powder, 5-10% of a Chinese medical stone powder and 1-5% of silver iodide. The ceramic filter core provided by the invention is a high-grade filtering material which is prepared by using diatomite and the like as raw materials, moulding and carrying out high-temperature sintering. The inside of the material is uniformly coated with silver ions such that the material has antibacterial and anticorrosion effects and bacteria, fine particle impurities, virus and the like in water can be effectively removed. The ceramic filter core provided by the invention can be widely applied in purification and sterilization of drinking water and mineral water as well as preparation of sterile water, disinfectant fluid and high purity water in pharmaceutical and electron industries.

The invention discloses application of a natural deep-eutectic solvent used as a preservative. The natural deep-eutectic solvent is synthesized by a method with the following steps of mixing a hydrogen bond donor compound and a hydrogen bond receptor compound according to a molar ratio of 1.0:(0.5 to 2.0), and heating to react until a transparent liquid solvent is formed, wherein the hydrogen bonddonor compound is selected from one or more than one of glycerin, citric acid, urea, malic acid or xylitol, and the hydrogen bond receptor compound is selected from one or more than one of choline chloride, glycine betaine or L-proline. The invention also discloses a compounded preservative, and the compounded preservative is prepared from 10 to 50% of natural deep-eutectic solvent and 2.5 to 5.3% of folium mori extract. The natural deep-eutectic solvent is reported for the first time, and has the advantages that the bacteria-inhibiting and anti-corrosive functions are realized; the natural deep-eutectic solvent is compounded with the folium mori extract to form the novel preservative, and the bacteria-inhibiting function of the preservative is improved.

The invention discloses a cosmetic or dermatological composition as well as a preparation method and application thereof, and belongs to medicines and cosmetics. The composition comprises 0.001%-10% of triterpene acid, 0%-10% of triterpenoid saponin, 0%-10% of vitamin A or vitamin A derivatives, 0.1%-20% of terpene-containing essential oil, 1%-40% of an emulsifier, 1%-40% of a co-emulsifier and a proper amount of water and additives. The preparation method comprises the following steps: dissolving the triterpenic acid, the triterpenoid saponin and the vitamin A or the derivatives thereof in the emulsifier, the co-emulsifier and the terpene-containing plant essential oil, performing dispersing in a water phase while stirring, and carrying out high-pressure homogenization. The prepared nano-emulsion is in an oil-in-water type, is excellent in water solubility, clear, transparent, good in stability and high in absorption efficiency, the effects of resisting aging, reducing wrinkles, whitening, inhibiting acnes, inhibiting sebum overflow, inhibiting scar formation, promoting skin wound repair and the like are greatly improved, the preparation method is simple, and the application value of the composition in the fields of medicines and cosmetics is improved.

The invention discloses a loquat fruit preservation technology through nano packaging compound plant essential oil treatment, specially used for rot control and quality maintenance in a normal temperature storage process after loquat fruits are picked in the south, so as to prolong a storage period of product. According to the technology, a nano titanium dioxide low-density polyethylene preservative film is adopted and carvacrol essential oil with proper concentration is used for treatment to store the loquat fruits at temperature of minus 20 DEG C, so that the preservation life is prolonged to more than 15 days. The preservation technology disclosed by the invention significantly inhibits rot of the picked loquat fruits to keep good eating quality. The carvacrol essential oil, as a secondary metabolism product of plant, is low in working concentration so as to guarantee eating safety of the fruits. The nano thin film packaging has the advantages of being efficient, safe, convenient to use and the like.

The invention discloses natural acorn talcum powder and a preparation technology thereof and belongs to the technical field of skin care products. The natural acorn talcum powder comprises the following components in parts by weight: 60-90 parts of acorn powder, 4-9 parts of honeysuckle, 4-8 parts of mother chrysanthemum, 5-20 parts of Thymol, 0.01-0.5 part of menthol crystal, 0.4-2.6 parts of zinc oxide and 0.01-0.05 part of spice. The components are smashed, sieved, evenly mixed and packaged to obtain the natural acorn talcum powder. In the natural acorn talcum powder, edible nontoxic pure plant serving as a main raw material, as well as honeysuckle, mother chrysanthemum, Thymol, menthol crystal, zinc oxide and spice are added to prepare the natural acorn talcum powder. The formula is nature and free from irritation; and the natural acorn talcum powder completely contains no talc powder, is non-toxic, does not irritate skin, has the functions of astringing dampness, removing sores, removing prickly heat, relieving itching, clearing away heat and toxic material and protecting skin, is suitable for new born infants, has obvious curative effect on preventing prickly heat and treating infant eczema, and ensures no dust flies.

The invention belongs to the technical field of preservation tools, and particularly relates to an antibacterial antiseptic food preservation film which is characterized by being prepared from the following components in parts by weight: 90-100 parts of low-density polyethylene resin, 0.05-0.1 part of ethyl vanillin, 0.05-1 part of potassium sorbate, 5-10 parts of calcium carbonate, 0.5-1 part of antioxidant, 0.5-1 part of sodium alginate, 4-8 parts of epoxy octyl stearate and 4-8 parts of epoxidized soybean oil. By adding the ethyl vanillin and potassium sorbate, the antibacterial antiseptic food preservation film provided by the invention has an antibacterial antiseptic effect, and no toxic and side effect and any harm to a human body.

The invention discloses an efficient ceramic filter element which consists of the following raw materials in parts by weight: 30-50 parts of diatom ooze, 40-60 parts of bentonite, 15-20 parts of silica gel, 50-80 parts of vermiculite powder, 20-30 parts of activated carbon, 50-60 parts of ceramsite powder, 40-50 parts of mica powder, 10-12 parts of magnesium oxide, 8-12 parts of silicon oxide, 12-15 parts of zinc oxide, 12-15 parts of ferric oxide, 15-18 parts of lava powder, 12-20 parts of quartz sand powder, 10-20 parts of fiber filter material and 15-20 parts of potassium iodide. The efficient ceramic filter element is an advanced filter material formed via molding and high-temperature sintering, has antibacterial and preservative effects, is capable of effectively removing bacteria, fine particles and viruses in water, and can be widely applied to purification of drinking water and mineral water as well as other water treatment and application fields.

The invention discloses a preparation method of passiflora edulis fruit sauce. The preparation method comprises following steps: 1, passiflora edulis fruits are selected and washed; 2, peeling is carried out, wherein the epicarp of passiflora edulis fruits is removed via a mechanical method; 3, seeds are removed, wherein fruit peel and fruit pulp juice are collected respectively, and seeds in the fruit pulp juice are removed; 4, pulping is carried out, wherein the fruit pulp juice and fruit peel are subjected to pulping so as to obtain fruit pulp; 5, flavoring is carried out, wherein a sweetening agent and / or salt is added into the fruit pulp, and pH value of the fruit pulp is controlled to be 2.0 to 4.0 at the same time; 6, reduced pressure boiling and concentration are carried out, wherein boiling is carried out for 0.5 to 30min at 40 to 100 DEG C under a pressure less than one atmosphere so as to obtain the passiflora edulis fruit sauce. According to the preparation method, the hard passiflora edulis fruit epicarp which is acerb in taste and rough in mouthfeel is removed, the passiflora edulis fruit sauce is prepared from the mesocarp, the endocarp, and pulp which are abundant in nutrients, so that the obtained passiflora edulis fruit sauce is sweet, sour, and delicious, and is abundant in nutrients.

The invention discloses a health wine and its preparing method, using honey / honey spores, bee pollen / fallen fine bee pollen and haw as main raw material to ferment and make it, and its raw materials in weigh proportion: honey / honey spores 350-650 g, bee pollen / fallen fine bee pollen 175-325 g, refined honey 350-650 g, haw 175-325 g, red yeast 200-500 g, and water 7000-13000 g, and includes the process steps as preparing raw materials, mixing and fermenting, filtering fermentation liquor and making aged semi-finished product, checking the finished product, pouring and sealing. It maintains effective components of the raw materials, and has evident efficacies of nourishing spleen, promoting digestion, improving sleep, etc. If drunk for a long time, it is beneficial to human body.

The invention relates to bioactive peptide milk substrate liposome essence water having blue opalescence and a Tyndall phenomenon. The bioactive peptide milk substrate liposome essence water consistsof the following components in parts by weight of 10-60 parts of milk substrate liposome, 0.1-1 part of bioactive peptide, 0.1-1 part of ginsenoside, 0.002-0.01 part of yeast essence, 0.001-0.01 partof alpha-bisabolol, 1-3 parts of tea polyphenols, 0.01-1 part of hyaluronic acid, 0.5-5 parts of trehalose, 0.01-3 parts of epsilon-polylysine and the balance distilled water, wherein all of the components are 100 parts. The essence water firstly adopts naturally-extracted bisabolol and polylysine united preservative, is free from chemical additives, has the effects of moistening, resisting wrinkles and whitening skin, is quick to seep, good in absorption and rich in nutrients, and can solve the problems that at current, essence water is difficult to deliver to a skin base layer or only a fewof active components can be delivered to the skin base layer for development of effects.

The invention discloses a multi-curative-effect external ointment and a preparation method thereof. The external ointment is prepared from, by weight, vaseline, white oil, beewax, microcrystalline wax, menthol, american vine fruit oil, borneol, wintergreen oil, eucalyptus oil, symsitive, camphor, symrelief, mint essence, powder essence and the like. Every three components are mixed, heated, melted, evenly stirred, cooled and then poured into a mixing tank, and then the mixtures continue to be stirred till all the materials are fully mixed. The ointment is fine in compounding, soft in texture and obvious in wet feeling, the solubility of all kinds of grease is enhanced, and the antibacterial and anti-corrosion effects are achieved; the use comfort is improved while the product stability isimproved, the ointment has the effects of caring skin, resisting allergy, being cool, stopping itching, relieving swelling and pain, refreshing and restoring consciousness, moistening and moisturizingthe skin, activating subcutaneous microcirculation, forming a protective film on the skin surface, preventing the loss of water and functional substances, fixing the medicinal components and enhancing the overall curative effect. The method is simple in preparation process, low in production cost and low in investment risk.

The invention relates to milk substrate liposome eye gel for resisting wrinkles and removing fat granules and dark eye circles. The milk substrate liposome eye gel consists of the following componentsin parts by weight of 10-60 parts of milk substrate liposome, 0.1-1 part of bioactive peptide, 0.1-1 part of ginsenoside, 0.002-0.01 part of yeast essence, 3-10 parts of sweet almond oil, 0.1-2 partsof tween 80, 0.1-2 parts of span 80, 0.2-2 parts of xanthan gum, 0.1-1 part of sodium alginate, 0.2-1 part of alpha-bisabolol, 1-3 parts of tea polyphenols, 0.1-5 parts of vitamin E, 0.01-1 part of hyaluronic acid, 1-5 parts of trehalose, 0.01-3 parts of epsilon-polylysine and the balance distilled water, wherein all of the components are 100 parts. The eye gel has the effects of lightening darkeye circles, resisting wrinkles, and removing fat granules. In addition, the bisabolol and the polylysine are united for use for the first time to replace chemical preservatives, so that stimulation effect on sensitive skin and muscle is eliminated.

The invention discloses hand cream which comprises water, ethanol, propylene glycol, butanediol, isopropyl palmitate, cetostearyl alcohol, hyaluronic acid, Carbomer, milk protein, tocopherol, allantoin, hydroxyethyl cellulose, DMDM hydantoin, PEG-7 glyceryl cocoate, PEG-40 hydrogenated castor oil, polysorbate-20, phenoxyethanol, chlorphenesin, glycerin, sodium polyacrylate, sodium benzoate, menthol PCA ester, bio-saccharide gum 1, evening primrose seed oil, avocado oil, olive-pomace oil, Blumea oil, spearmint leaf oil, ginseng extract, catnip leaf extract, pearl extract, herba centellae, immortelle extract, oryza sativa oil, grape seed extract, aloe extract, tremella extract, propolis, donkey-hide gelatin, saffron crocus extract, rhodiola rosea extract, radix angelicae extract, tea extract, lemon juice, rose extract, alcohol extract of verbena officinalis, lavender extract and salvia officinalis extract. The hand cream disclosed by the invention can achieve a good effect of moistening hand skin.

The invention relates to the field of plant antibacterial technologies, in particular to a plant-derived antibacterial agent and liquid soap and toothpaste with the plant-derived antibacterial agent. The plant-derived antibacterial agent comprises traditional Chinese medicine extract including, by weight, 30%-90% of pericarpium granati extract, 5%-30% of radix et rhizoma rhei extract, 5%-20% of radix sophorae flavescentis extract, 1%-10% of radix paeoniae alba extract, 1%-10% of olea europaeal extract and 0.01%-5% of propolis extract. The plant-derived antibacterial agent, the liquid soap and the toothpaste have the advantages that gram-positive bacteria, gram-negative bacteria, saccharomyces and anaerobic bacteria can be inhibited by the plant-derived antibacterial agent, the plant-derived antibacterial agent is wide in antibacterial spectrum and can be applied to the toothpaste and the liquid soap, excellent antiseptic effects can be realized, usage of chemically synthesized antiseptics can be reduced, accordingly, irritation of products can be reduced, and the safety of the products can be improved.

The invention discloses a ceramic atomizing head. The atomizing head comprises an atomizing sleeve, an atomizing frame, heating wires and an oil guide component, wherein the oil guide component is of a hollow cylindrical structure, the heating wires are of spiral spring-like structures, and arranged in the oil guide component, the lateral surfaces of the heating wires are wrapped and wound by an inner cylinder of the oil guide component, the oil guide component is arranged in the atomizing sleeve, the atomizing sleeve is matched and pressed tightly with the atomizing frame, an oil inlets uniformly distributed on the lateral surface of the atomizing sleeve are formed in the atomizing sleeve, the oil guide component comprises a cylindrical ceramic core with a cylindrical through hole, a multi-pore structure is arranged on the cylinder wall of the ceramic core, tobacco tar can be filtered and permeated to the other side of the cylinder wall through one side of the cylinder wall, and the heating wires are located inside the cylindrical through hole of the ceramic core. The ceramic atomizing head disclosed by the invention has the advantages of being environment-friendly, healthy and free of peculiar smells, high in smoke stability, good in user experience, strong in safety performances, convenient in use and long in service life and further wide in matching and applicability.

The invention relates to a medical soap containing a special essential oil extracted by supercritical fluid, is prepared from glycerol and the essential oil on the basis of perfumed soap substrate. The perfumed soap containing the essential oil has the effects of antibiosis and anticorrosion, warming stomach, promoting blood circulation and removing obstruction in channels and the like, can not only decontaminate, but also is corrosion resistant and antibacterial, and can warm the stomach, prompt the blood circulation, and is a novel perfumed soap.

The invention discloses plant washing liquid with disinsectization, bacteria inhibition and decontamination effects and a preparation method thereof. The plant washing liquid comprises the following components in parts by weight: 20-90 parts of soapberries, 20-90 parts of Chinese honeylocust fruits, 5-40 parts of camellia seed, 3-40 parts of cinnamomum cassia, 3-40 parts of ginger, 1-25 parts of patchouli leaves, 1-25 parts of folium artemisiae argyi, 1-25 parts of citronella leaves, 2-30 parts of daphne odera and 2-30 parts of lavender. The plant washing liquid is prepared by the 8 steps of deseeding, washing, drying, crushing, mixing, preparing an unrefined extract, preparing a refined extract and preparing a plant washing liquid finished product. The whole set of process flow is completed by adopting a physical method, the steps are simple, the cost is low, the industrial production can be formed, and the obtained plant washing liquid finished product is rich in foam, fragrant in smell, obvious in disinsectization, bacteria inhibition and decontamination effects and free from environment pollution and residue.

The invention provides a Gamuzhuer medicinal latex preparation and a preparation method thereof. The Gamuzhuer medicinal latex preparation comprises the following components by weight percentage: 10-40% of Gamuzhuer, 0.1-8% of bioadhesive agent, 0.1-5% of non-ionic emulsifier, 1-30% of glycerol, 0-30% of grease and the balance of water. The bioadhesive material is bond with the Gamuzhuer, so thatmedicines are dispersed and adhered to a focus part so as to achieve a therapeutic aim; the Gamuzhuer latex preparation has a higher content, is more convenient to administer and is not added with any irritant solvent; the acting time is prolonged; during preparation, a proper amount of emulsifier is added, so that dissolution of musk and borneol can be promoted; compared with the conventional powdery preparation, the latex preparation takes effect more quickly; a proper amount of grease and a proper amount of emulsifier are added to achieve a good lubricating effect; the grain diameter of the medicinal powder is optimized, so that 99 percent of the powder is smaller than 100 um and thus the stability of the medicinal powder is improved; and the medicines have antibacterial and antisepticfunctions, so that a preservative is not required.

The invention provides a novel efficient water-purifier double-section filter element, and belongs to the technical field of filter elements. The novel efficient water-purifier double-section filter element comprises an upper filter element section and a lower filter element section which are connected with each other. The upper filter element section is a kieselguhr ceramic filter element, the lower filter element section is a silver ion active carbon felt filter element, and to-be-purified water flows through the upper filter element section and the lower filter element section in sequence. According to the double-section filter element in the technical scheme, the technology that the kieselguhr ceramic filter element is combined with the silver ion active carbon felt filter element is adopted, the purifying effect is remarkably improved, and the problem that an existing double-section filter element is insufficient in filtering is completely solved.

A raspberry ketone antibacterial preservative comprises raspberry ketone, dihydric alcohol and water-soluble solid polyhydric alcohol; and the raspberry ketone antibacterial preservative is solid powder or particles formed by dissolving and dispersing the raspberry ketone in an aqueous solution of the dihydric alcohol, uniformly distributing the raspberry ketone in the water-soluble solid polyhydric alcohol and drying the raspberry ketone. According to the raspberry ketone antibacterial preservative provided by the invention, the original water insolubility of the raspberry ketone is changed through a unique technical method, so that the raspberry ketone antibacterial preservative can be uniformly dispersed in a water body to play antibacterial and preservative roles; the raspberry ketone antibacterial preservative is more convenient to store, transport, meter, use and the like compared with an existing liquid antibacterial preservative; the product is stable in performance, convenient to use and reliable in effect, can reduce the adding types of the antibacterial preservative during use, adapts to various application scenes, meets different requirements of users, is easier to accept by the users as an antibacterial preservative taking natural products as a main body; and therefore, the raspberry ketone antibacterial preservative has great popularization and application values.

The invention discloses cooking fragrant Chinese prickly ash oil and a preparation method. The preparation method comprises the following steps: (1) washing dry Chinese prickly ash with water, drying, adding edible oil of 160-180 DEG C, and under a vacuum condition, extracting and filtering to obtain filtrate, namely Chinese prickly ash oil, washing and chopping fresh green onions, adding edible oil of 170-190 DEG C, and under a vacuum condition, extracting and filtering to obtain filtrate, namely green onion oil, and washing fresh ginger, slicing, adding edible oil of 160-180 DEG C, and under a vacuum condition, extracting and filtering to obtain filtrate, namely ginger oil; and (2) mixing the green onion oil, the ginger oil and the Chinese prickly ash oil, and standing, wherein supernatant is the cooking fragrant Chinese prickly ash oil. The cooking fragrant Chinese prickly ash oil disclosed by the invention has fragrance of green onions and ginger when used for stir-frying foods, can be used for removing undesirable odor and enhancing the flavor of dishes, and has the effects of inhibiting bacteria and preventing corrosion, prolonging the preservation time of dishes and the like. The oil is clarified and the fragrance is accepted with pleasure. The cooking fragrant Chinese prickly ash oil is suitable for office workers who have a rapid work rhythm and do not have excessive time to buy fresh green onions and fresh ginger for cooking.

The invention relates to the field of plant extraction, in particular to an extraction method and application of fructus foeniculi volatile oil. The extraction method disclosed by the invention is characterized in that volatile oil in fructus foeniculi fruits is extracted by adopting an ultrasonic two-step extraction method; the method has the advantages of being high in extraction rate, high in purity, short in extraction time, simple in operation steps, easy to operate, friendly to the environment and suitable for large-scale industrial production. The fructus foeniculi volatile oil extracted with the extraction method disclosed by the invention is used for a food preservative, and has the advantages of high antibacterial activity, good safety, good stability and wide antibacterial range; the fructus foeniculi volatile oil endows food with special flavor in sensory organ and also has bacteriostatic preservative functions, anti-oxidization and odor-correcting functions as well as physiological health-care functions.

The invention discloses barium-free antirust grease with thixotropy after dilution. The barium-free antirust grease is characterized by comprising the following raw materials in parts by weight: 13-16 parts of beewax, 10-14 parts of spermaceti wax, 36-41 parts of vaseline, 12-15 parts of burning kerosene, 10-13 parts of 50# machine oil, 3-5 parts of attapulgite, 3-4 parts of asphalt, 2-4 parts of precipitated silicon dioxide, 6-8 parts of petroleum sodium sulfonate, 2-3 parts of high-density polyethylene powder, 2-2.5 parts of sorbitan monooleate and 2.5-4 parts of a protective agent. The precipitated silicon dioxide and other thixotropic agents are added into the formula, the phenomenon that waste is caused because the product is easy to flow when being diluted to be used can be avoided, the addition of the protective agent is matched, a firm protective film can be formed on the metal surface, rust caused by erosion of water and oxygen is avoided, and the barium-free antirust grease has the antibacterial, anticorrosive and ultraviolet radiation-resistant effects. Moreover, the antirust grease disclosed by the invention has barium-free and environment-friendly effects, is wide in application range and is suitable for sealing or machining metal parts, and can be used through multiple ways.

The invention relates to a preservative and fresh-keeping method of loquat fruits by ultrasonic waves compounded with peracetic acid. The method is specially used for decay control and quality retention in loquat fruit storage of the South (Jiangsu and Zhejiang provinces, Fujian province, Sichuan province and the like). The technique combines ultrasonic waves with a peracetic acid solution with a proper concentration and can be applied in postharvest cleaning treatment of loquats. The refreshing time in a normal temperature storage environment at 20 DEG C can reach over 12 days. The fresh-keeping technique provided by the invention obviously inhibits postharvest decay of loquat fruits and maintains a relatively good edible quality. The ultrasonic wave compounded with peracetic acid is a physical cold sterilizing technique, and the compounded treatment obviously improves the efficiency of antisepsis and sterilization by peracetic acid and reduces the using concentration. The method has the advantages of high efficiency, safety, no residues, convenience in use and the like and has a relatively good application prospect in loquat preserving and fresh-keeping.