407results about How to "Prevent oxidative deterioration" patented technology

The invention discloses an edible biological preservative film and a preparation method thereof. The edible biological preservative film comprises the following components in parts by weight: 30-60 parts of a film former, 1-10 parts of a natural antioxidant, 1-10 parts of a natural bacterial inhibitor, 1-4 parts of a plasticizer and 0.5-4 parts of an emulsifier. The preparation method comprises the following steps: mixing the components in proportion to form preservative film liquid, and preparing the preservative film by adopting a tape-casting process. According to the preservative film, excellent film forming performances of materials such as marine polysaccharides, chitosan, gelatin and the like are utilized, the natural antioxidant and the natural bacterial inhibitor are selected and used, and the modification process is carried out through the plasticizer, the emulsifier and the like, so that the prepared preservative film is good in mechanical property, delays the spoilage of an aquatic product and can effectively prolong the shelf life of the aquatic product.

The invention discloses functional fatty powder and a preparation method thereof, and belongs to the technical field of feeds. The functional fatty powder is characterized in that raw materials comprise the following components in parts by weight: 30-50 parts of concentrated omega-fatty acid fat, 10-20 parts of lecithin, 8-15 parts of concentrated linolenic acid fat, 8-15 parts of MCT, 1-5 parts of choline, 1.5-5.5 parts of nicotinamide, 1-5 parts of a composite emulsifying agent, 3-8 parts of a composite antioxidant, 2-8 parts of vitamin C, and 40-70 parts of encrusting substances or 30-60 parts of carriers. The functional fatty powder provided by the invention is small in addition quantity, high in cost performance ratio, good in stability, high in nutrient value and high in fat utilization rate; the functional fatty powder not only can greatly improve the growing property and the reproductive property of animals but also can improve the immunity of the animals and promote the development of animal organisms, so that the functional fatty powder is an excellent feed additive.

The invention discloses a composition containing a haematococcus extract and a collagen peptide. The composition is prepared from the following components in part by weight: 1 to 20 parts of haematococcus pluvialis extract, 1 to 10 parts of collagen peptide and 1 to 90 parts of safflower seed oil. The invention also discloses a preparation method for the composition. Natural astaxanthin in the haematococcus pluvialis extract has the ultrahigh oxidation resistance, ensures the normal metabolism of skin, inhibits the generation of melanin and enhances the effect of collagen; the absorption rate of the collagen peptide is between 95 and 100 percent; the collagen peptide can improve the metabolism of skin cells effectively, and can be utilized by the skin cells more easily, so that the activity of the collagen in the skin is enhanced, and the aims of preserving moisture, resisting wrinkles and nourishing the skin are fulfilled; and due to the addition of the safflower seed oil, the composition contains linoleic acid with high content and vitamin E and can prevent the oxidative deterioration of the astaxanthin, an antioxidant is not needed to be added, and the quality guarantee period can be prolonged by one time.

The use of i) finely divided knotwood, or ii) an extract, obtained by extracting knotwood with a polar solvent and recovering the extract, as an antioxidative agent. A fraction of the extract may also be used as an antioxidative agent.

The invention relates to a compound feed for improving red drum flavor and a preparation method thereof. The compound feed comprises fishmeal, high-gluten flour, soy protein concentrate, fermented peanut meal, beer yeast, corn meal, fish oil, vegetable oil, squid paste, soy lecithin, blood protein powder, binder carboxymethyl cellulose, composite vitamins, composite minerals, choline chloride, betaine, carnitine, sodium dehydroacetate, and butyl hydroxy anisole. The compound feed of the invention has advantages of good attractant effect, good palatability, high feed utilization rate, good-quality red drum. The compound feed can better prevent a feed from oxidative deterioration, improves the feed utilization rate, improves red drum growth, reduces environmental pollution and has a significant environment-protection effect.

The invention discloses a frozen fillet processing method, belonging to the fields of frozen aquatic products and aquatic product processing, which can be popularized and applied to the freezing process of other foods. In the method of the invention, protective agent is added into boned skinless fillets by injecting, ultrasonic immersing or a combined manner of injecting and ultrasonic immersing for processing the fillets; the fillet quick freezing is realized by adopting the synergistic effect of indirectly contacted alcohol freezing solution immersing and ultrasound freezing; and the fillets are frozen and stored at below 18 DEG C. The protective agent is an aqueous solution containing sodium lactate, trehalose, unfrozen protein, Nisin and salt; the protein denaturation of the frozen fillets processed by the protective agent is reduced, the retention performance is improved, the nutritional value, flavor and mouthfeel can be maintained to the largest extent, the freezing time is short, and the production efficiency is high.

The invention discloses a processing method of keemun golden hook black tea. The keemun golden hook black tea is prepared by a series of procedures of natural withering, withering by virtue of a withering tank, rolling, deblocking, fermenting, roll forming, arranging, shaping, shape solidifying and fragrance extracting. Beta-carotene is added in the rolling procedure to increase the golden yellow; and glucose oxidase is added to prevent the black tea from further fermenting after the fermentation is ended. The black tea prepared by adopting the method has the advantages of having the long-hook-shaped appearance, black and bright color and luster, revealable hairy tips, has the clear and high fragrance, obvious sweet scented taste, fresh and mellow taste, sweetness in aftertaste, red and bright soup and obvious golden circle after being brewed, and has a unique flavor and relatively high economic and social benefits.

The present invention relates to an extraction and refinement method for microbial oil. The method is characterized by comprising the following steps: (1) carrying out a post-treatment on a fermentation broth: after completing fermentation, carrying out a high temperature short time inactivation treatment on a fermentation broth, carrying out bacterial liquid separation to obtain wet bacterial, and drying; (2) carrying out microbial oil extraction: extracting microbial oil under a temperature condition of an extraction temperature of not more than 60 DEG C to obtain mixed oil, cooling to a temperature of -10 to 10 DEG C, filtering to remove impurities and colloid substances in the mixed oil, and carrying out vacuum desolution to obtain crude oil; and (3) carrying out refinement: carrying out alkali refinement, adding active white clay to the alkali refined system to carry out decoloration, adding silicon dioxide and active carbon to carry out absorption on hazards, filtering to remove the active white clay, the silicon dioxide and the active carbon, and carrying out deordorization at a temperature of 180-190 DEG C to obtain the finished product oil. The extraction and refinement method is suitable for microbial oil, and is an extraction and refinement method for effectively reducing hazard content in the oil in industrial production.

The invention relates to a compound feed for Scylla serrata, a preparation method, and an application method thereof. The compound feed comprises a solid part and a liquid part, wherein the solid part is composed of fish meal, strong flour, soybean meal, peanut meal, beer yeast, fish oil, shrimp shell powder, cuttlefish paste, phospholipids, plasma protein powder, choline chloride, compound vitamins, compound mineral substances, a decladding element, sodium diacetate, betaine, butylated hydroxyanisole, phytase and beta-carotene. The preparation method of the invention comprises the steps of raw material smashing and sifting, mixing, conditioning, granulating, drying and packaging, ant the like. The feed prepared by the method of the invention has the advantages of good food calling effect, good palatability, high feed utilization, rich and overall nutrient, a raised feed utilizing rate of the Scylla serrata, reduced pool pollution, and significant environmental protection effect.

The invention relates to a flexible touch screen, and further relates to a preparation method for the flexible touch screen. The flexible touch screen comprises a flexible substrate, a transparent conductive film arranged on the flexible substrate and electrode leads electrically connected with the transparent conductive film, wherein each electrode lead comprises a copper lead arranged on the transparent conductive film and a copper-nickel alloy protecting film arranged on the copper lead. Copper-nickel alloy is good in oxidation resisting performance under atmosphere and can effectively prevent the copper lead from being oxidized or going bad, sputtering preparation of the copper lead and the copper-nickel alloy protecting film can be directly finished through one process without extra processes, and therefore production efficiency of flexible touch screens can be effectively improved, extra processes are prevented from damaging the transparent conductive film, and the percent of pass of the flexible touch screens is improved.

The invention relates to an automatic powdery dye weighing system. The automatic powdery dye weighing system comprises a frame, a plurality of feeding devices, a movable rotary-shifting manipulator, a movable receiving trolley and an electric control cabinet, the feeding devices are arranged on the frame side by side, the movable receiving trolley is correspondingly arranged below the front ends of the feeding devices, the movable rotary-shifting manipulator is correspondingly arranged at the rear ends of the feeding devices, the electric control cabinet is arranged on one side of the frame, each feeding device comprises a dye box and a screw feeder, each screw feeder is mounted on the lower portion of each dye box, a discharge hole is made at the front end of each screw feeder, the rear end of each screw feeder is matched with the movable rotary-shifting manipulator so as to achieve discharging, the upper portions of the dye boxes are connected with a feeding pipe and a negative pressure pipe, and the negative pressure pipe is connected with a negative pressure fan. The automatic powdery dye weighing system has the advantages that the automatic powdery dye weighing system is simple in structure, scientific and reasonable in design, capable of effectively improving dyeing recipe weighing efficiency and good in weighing repeatability, pollution of powder to working environments is avoided, labor is freed, and the working environments are improved.

The invention discloses ultra-low-viscosity energy-saving gasoline engine oil and a preparation method thereof. The ultra-low-viscosity energy-saving gasoline engine oil is composed of, by mass, 8.5-12.5% of a steam turbine oil complexing agent, 0.1-0.5% of antioxygen, 1-5% of viscosity index improver, 0-0.8% of an antiwear agent, 0.002-0.005% of an anti-foaming agent and the balance synthetic base oil. According to the base oil, alpha-olefin, esters and polyester oil are selected in cooperation with the special viscosity index improver, the mixture is combined and blended into ultra-low-viscosity totally-synthesized gasoline engine oil with the viscosity meeting the standard, characteristics of alpha-olefin type oil and ester type oil are utilized and reasonably matched, and the ultra-low-viscosity totally-synthesized gasoline engine oil which is excellent in performance is prepared; according to the ultra-low-viscosity energy-saving gasoline engine oil and the preparation method thereof, an anti-wear reinforcing agent is added to serve as oil soluble organic molybdenum and organic tungsten, the organic molybdenum and organic tungsten are used in a joint mode, engine oil plays good anti-wear and friction reduction functions in the whole stage of operation of an engine, the phenomena that the oil temperature is excessively high, and thus oil is oxidized and goes bad due to excessively high friction are effectively avoided.

The invention discloses a preparation method for peanut bioactive peptide. The method comprises the following steps: adding peanut protein powder to distilled water, carrying out stirring, followed by standing and microwave treatment to obtain peanut protein powder suspension liquid; adjusting a pH value of the peanut protein powder suspension liquid through a hydrochloric acid solution, then adding compound plant hydrolase Viscozyme L, followed by carrying out the microwave treatment to secondarily carry out enzymolysis to obtain a enzymatic hydrolysate, then killing the enzymes and carryingout cooling to a room temperature; adjusting a pH value of the enzymatic hydrolysate through a sodium hydroxide solution or the hydrochloric acid solution, then adding protease and carrying out the microwave treatment to secondarily carry out the enzymolysis, then killing the protease and carrying out cooling to the room temperature, followed by carrying out centrifugating and freeze drying to obtain the peanut bioactive peptide. The prepared peanut bioactive peptide product provided by the present invention has functional properties of high dissolubility, high emulsibility, strong foamability, good emulsion stability, good foam stability and the like. In addition, the method provided by the present invention is applicable for the industrial production.

The invention provides a heatproof lyoprotectant for a live vaccine against pseudorabies. The heatproof lyoprotectant comprises, by weight, 3 to 10 parts of gelatin, 1 to 5 parts of trehalose, 5 to 15 parts of sucrose, 0.1 to 2 parts bovine serum albumin, 1 to 8 parts of tryptone, 2 to 10 parts of enzyme-hydrolyzed casein, 1 to 5 parts of thiourea, 0.8 to 2 parts of L-monosodium glutamate, 0.1 to 3 parts of arginine, 0.5 to 5 parts of polyvinylpyrrolidone (PVP-K30) and 0.1 to 2 parts of mannitol. The invention also discloses a preparation method of the heatproof lyoprotectant and a lyophilized vaccine prepared from the heatproof lyoprotectant. When the heatproof lyoprotectant is used for protecting the vaccine and a specific lyophilization process is employed, lyophilization loss of viruses can be effectively reduced, the temperature tolerance of the viruses can be improved, and the vaccine can still maintain good physical properties and titer after long-term storage; i.e., the vaccine has stable characters and has the characteristics of heat resistance and long storage time.

The invention concerns compositions containing polyunsaturated fatty acids (PUFA's). More particularly it concerns a composition containing PUFA's, (particularly long chain PUFAs derived from marine sources, particularly fish, and its use in fortifying consumables, such as food, drink, supplements and nutraceutical or pharmaceutical products. More particularly it is a substantially non aqueous additive mix, for introducing poly unsaturated fatty acids into ingestible products, which when hydrated forms an oil in water emulsion, comprising one or more poly unsaturated fatty acids or a source thereof and one or more emulsifying agents. The mix can be added to, particularly farinaceous products, to provide PUFA supplementation.

The invention discloses a compound antioxidant for animal feeds. The compound antioxidant is prepared from the following components in parts by weight: 10-40 parts of tea polyphenol, 5-15 parts of lactein, 5-20 parts of ethyoxyl quinolone, 1-5 parts of butylated hydroxyanisole, 1-5 parts of propylgallate, 5-20 parts of a synergist, 10-20 parts of an emulgator and 15-40 parts of a carrier. In addition, the invention further discloses a preparation method of the compound antioxidant for the animal feeds. The preparation method comprises the following steps of molecular fusion, homogenization and emulsification, spray drying and the like. The compound antioxidant for the animal feeds, disclosed by the invention, ensures the mixing uniformity of the components, and the oxidation resistance is outstanding.

The invention provides a method for utilizing a compound biology leavening agent for producing fermentation fish. The method comprises the specific steps of fermentation medium preparation, liquid culture of lactic acid bacteria, mixed lactic acid bacteria liquid preparation, fish pretreatment, compound biology leavening agent preparation, fish fermentation and the like. An enzyme preparation is introduced, consumption of oxygen of a fermentation system is accelerated, fish is stopped from oxidizing and deteriorating, a good survival environment is provided for anaerobic leavening agents like lactic acid bacteria, the advantage of the lactic acid bacteria leavening agent in fish fermentation total flora is determined fast, infectious microbes are inhibited, the risk of infectious microbe contamination is reduced, and product safety is improved; meanwhile, the enzyme preparation can accelerate decomposition of protein, action substrates of the leavening agent are increased, and the lactic acid bacteria can generate flavor substances fast by the utilization of free amino acid, so that the fermentation period is shortened remarkably, and flavor of the fermentation fish is improved. The method is simple in technology, the production period is short, and the method is suitable for wide application.

The defoamer comprises 35-65 portions of organic surfactant, 20-30 portions of mineral oil, 1-2 portions of hydrophobing modifier agent, anti-fungus agent 2-3 portions, and antirust agent 2-3 portions. The small dosage of the defoamer avoids the damage to the product, with the hydrophobing element being able to adjust the viscosity of the agent, piercing the foam elastic thin film to speed up the defoaming, with the hydrophobing being able to regulate the pH value, preventing the aging of elements like mineral oil, with various diffusion and spreading ability of viscosity agent, being able to save the defoaming dosage, stable in product, without defects like water diversion and stratification.

The invention provides a process for preparing naloxone hydrochloride injection. The pH of the naloxone hydrochloride injection can be unchangeable during placing by strictly controlling the pH range in production; and simultaneously, a method for inert gas protection adopted in the production reduces the oxygen content in liquid medicine and an ampoule to the minimum so as to prevent oxidative deterioration of the naloxone hydrochloride injection to reduce related substances. The technology greatly ensures the product quality.

The invention discloses deer blood wine and a preparation method of the deer blood wine and belongs to the technical field of nutritional Baijiu. Fresh deer blood and deer whips are used as main raw materials and are scientifically compounded with lycium ruthenicum, fructus lycii, mulberry fruit, fructus jujubae, longan, liquorice root and the like; a whole process adopts low-temperature processing technologies of freeze-drying, carrying out biological enzymolysis by a complex enzyme, degassing and deodorizing in vacuum, freezing, carrying out low-temperature fermentation by functional saccharomyces cerevisiae, carrying out ultrasonic processing, carrying out high-voltage pulse electric field processing and the like; the utilization rate of effective components of deer products is effectively improved, and the loss of nutrients and health-care substances is reduced; the original color and luster, flavor and the content of bioactive components and nutrient substances of the deer products are kept to the greatest extent. Finally, the deer blood wine which has no odor, high stability, coordinated taste, mellowness, softness, long aftertaste, moderate flavor, high bioactive components and nutrient value and good health-care effect and is clarified and transparent is prepared.

The invention discloses a preparation method of a bamboo tube tea, wherein the preparation method comprises the steps: commercially available Pu'er tea or black tea is selected for use, and the moisture content is less than or equal to 5%; pure natural fresh cut moso bamboo is selected for use, a separation layer of each of bamboo joints at the top and the bottom of a bamboo tube is opened with a small opening used for filling tea leaves, and separation layers of bamboo joints inside the bamboo tube are all broken through; the tea leaves are filled by the steps that the dried Pu'er tea or black tea is loaded to the bamboo tube from the small openings, the tea loading amount in the bamboo tube is 50-70% of the volume of the inner chamber of the bamboo tube, the openings of the bamboo tube are plugged by porous plugs and the like, the bamboo tube is heated on a baking furnace to make the outer surface of the bamboo tube burnt, the bamboo tube has at least 1 / 4 of circumference area over-burnt from the bottom to along the bamboo tube circumference upwards, moreover, the bamboo tube rotates at the speed of 10-12 RPM while the outer surface of the bamboo tube is burnt, the burning time of the bamboo tube is 40-60 minutes at each time, and a criterion that the tea leaves in the bamboo tube are controlled to be not burnt at each time of burning is provided; light wave drying is carried out; freezing, detection and vacuum packaging are carried out. The tea leaves have unique characteristics of sweet and bamboo fragrant flavor.

An electrolytically reduced water which consists of an alkali ion water prepared by ion exchange and has a dissolved hydrogen concentration of 0.20ppm or above, an oxidation-reduction potential of -150mV to -500mV, and a hydrogen ion component of pH6.5-10.5 and which is quantitatively specified in the reducing power capable of inhibiting the oxidative deterioration of fat in the cutis through theelimination of active oxygen due to the characteristics of hydrogen, the oxidation-reduction potential characteristics of high reducing action, and alkaline characteristics and can activate the skin to inhibit the oxidative deterioration and suppress lumpy fat (cellulite).

The invention provides a compound extract for a cigarette, a microcapsule containing the extract and preparation methods thereof. The compound extract for the cigarette is prepared by mixing passion flower, rambutan, citron, clausena lansium, sea-buckthorn, pyracantha fortuneana leaves, persimmon leaves and mulberry leaves and then is prepared into the microcapsule applied to a cigarette filter stick, rich tropical fruit aroma can be endowed to the cigarette and is harmonious with cigarette aroma, sweet, aroma-absorbing fine and smooth taste is increased, and irritation is reduced. In addition, effective ingredients in the compound extract have body fluid regenerating and throat moistening effects and are brought into the oral cavity through smoke, the throat dryness problem brought by cigarette smoking can be solved, the cigarette smoking enjoyment is improved, the plant extracting rate and effective ingredient application can be greatly improved by adopting the preparation methods, involvement of unnecessary ingredients is avoided, and the effect in cigarette application is improved.

The invention discloses a preparation method of bamboo fiber paper cups. The invention relates to a bamboo fiber paper cup and a production process thereof. The bamboo fiber paper cup mainly structurally comprises a hollow fiber cup body, and is characterized in that the cup body comprises an outer layer, an inner layer, a hollow layer arranged between the outer layer and the inner layer and a coating layer above the inner layer. The outer layer and the inner layer are prepared from the following components in parts by weight: bleached bamboo fibers, dahurian larch fibers, modified starch, chitosan, talc powder, a dispersant, guar gum, glyceride hydrolase and a wet-strength agent. The hollow layer is prepared from the following components in parts by weight: polypropylene hollow short fiber pulp, dahurian larch fibers, chitosan, talc powder and a dispersant. According to the above settings, the outer layer and the inner layer are produced by employing bamboo fibers. The bamboo fiber pulp not only is environment-friendly, but also has the characteristics of being excellent in antibacterial property, bacteriostatic and free of peculiar smells. The hollow fiber layer has the functionsof being light in weight, heat insulative and warm-keeping. The bamboo fiber paper cup serving as a hot drink paper cup and a cold drink paper cup simultaneously is relatively safe.

The invention discloses a composite food anticorrosion fresh-keeping agent, which is characterized in that the fresh-keeping agent is prepared from the following components in percentage by weight: 1.5 to 3 percent of natamycin, 3 to 7 percent of iso-VC sodium, 5 to 8.5 percent of sodium dehydroacetate, 7 to 10 percent of xanthan gum, 70 to 76 percent of potassium sorbate and 6 to 9 percent of sodium chloride. The fresh-keeping agent has the characteristics: on the aspects of microbes of different types, respiratory mechanism, oxidative deterioration and the like, various reasons of food deterioration are comprehensively inhibited or delayed. The fresh-keeping agent has the advantages of safety, high efficiency, broad spectrum, practicability, good effect, low cost and capabilities of playing a role in multiple coexistent microbes, reducing the respiration of fruits and preventing oxidative deterioration of food, good cooperative addition among the components and good promotion effects on safety of the food, formation of color, fragrance and taste of the food during storage and keeping of nutrient components.

The invention belongs to an aircraft take-off and landing system, in particular to an aircraft main wheel. The main engine wheel of the aircraft includes a wheel assembly and a brake device, and the wheel assembly includes a hub, a wheel rim, a half snap ring, a guide rail, a tapered roller bearing, an adjusting bush, an oil deflector ring, a heat shield, and a valve assembly and thermal fuse plugs; the brake device includes a cylinder block assembly, a piston assembly, a brake housing, a brake disc and a heat shield. The wheel hub is a single web structure, which is convenient for tire disassembly and provides a large cavity that can accommodate the brake device; the wheel hub is made of aluminum alloy, which has the advantages of large bearing capacity and long service life; the brake shell The body has the advantages of light weight, high strength, high temperature resistance, simple structure, convenient use and maintenance; the brake device adopts two sets of hydraulic brake and pneumatic brake pistons that act independently, so that when any component fails or loses any brake energy Down, still able to stop the aircraft.

A deoxidizing-antistaling agent for chestnut is prepared from MnCl2, sodium chloride, stove ash and water through proportioning, dissolving MnCl2 in water, and mixing with others. Its advantages are high effect, low cost and no poison and odor.

The invention discloses a method for extracting linseed oil, in particular a method for extracting linseed oil assisted by ultrasonic. The invention takes linseeds as the raw material, the solvent is used to extract the linseed oil under the ultrasonic that the frequency is between 20 and 100 kHz and the strength is between 1 and 40W / cm<2>. With the method of the invention, the extraction rate of the linseed oil is between 70.74 and 99.36 percent, the extraction time is between 30 and 180 minutes, the dosage of the solvent is 4 to 20L per 1kg linseeds, the extraction temperature is between 20 and 60 DEG C. Compared with a pressing method, a solvent method and a supercritical carbon dioxide extraction method, the process provided by the invention has the characteristics of simple equipment, convenient operation, low cost, quick speed and high yield.

The invention discloses a preparation method of tea feed. The method includes the following steps that firstly, tea leaves are soaked in water, the tea leaves are expanded after being taken out, and the expanded tea leaves are prepared; secondly, animal oil and vegetable oil are taken and mixed to prepare compounded grease, emulsifiers, water, zinc lactate, lactic acid or citric acid, sucrose or glucose and sodium cyclamate are added into the compounded grease and are evenly mixed, finally, homogeneous processing is performed, and emulsified fat pulp is prepared; thirdly, the emulsified fat pulp is sprayed to the expanded tea leaves, the tea feed is obtained after even mixing, or the tea feed is obtained through drying after even mixing. The technology is simple and implementation is easy. The prepared tea feed is rich in emulsified fat pulp, tea polyphenol, lactic acid, zinc lactate and other active substances, and the tea feed has the functions of improving immunity and ingestion, promoting digestion, stimulating growth, reducing product cholesterol, improving meat quality of bred animals and the like. The prepared tea feed has the oil oxidization resistance function and can decrease the oil oxidization speed in summer.