49 results about "Egg Preservation" patented technology

The invention provides an egg preservation whey protein self-assembly fiber coating agent and an application method thereof. A whey protein solution with,mass concentration of 2-4% is prepared by using deionized water; the pH value of the solution is adjusted to 1.5-2.5 through 3mol / L hydrochloric acid, the solution is centrifuged for 15-20 min at a rotating speed of 9000r / min and at 4 DEG C, and the supernatant is subjected to suction filtration by a mixed fiber membrane with pore diameter of 0.45 micron; the filtrate is added into an airtight round-bottom flask and is heated in a water bath oscillation manner for 7-9h at 75-85 DEG C and a rotating speed of 300r / min to obtain fibrous protein, and the fibrous protein is freeze-dried or spray-dried to obtain fibrous protein powder. According to the invention, the whey protein is used as the raw material and is treated to form the fibrous protein powder with a certain length. The powder is prepared into 2-4% solution to coat eggs, protective films formed after air drying can effectively block air holes and seal tiny cracks to keep the eggs fresh and prolong the quality guarantee period by three to four times.

The invention provides a film preservative suitable for egg preservation. The film preservative is prepared from, by weight, 5-8 parts of South China pine needle extract, 9-16 parts of vine tea extract, 6-9 parts of red bayberry leaf extract, 5-8 parts of honeysuckle flower extract, 1-3 parts of plant essential oil, 0.5-0.8 parts of glycyrrhizic flavone, 10-25 parts of an emulsifier, and the balance of distilled water. The invention also provides a preparation method of the film preservative. The surface of an egg is coated with a preservative film, and the film inhibits the enzyme activity of the egg and alleviate the vitality decaying process in order to keep the freshness and the quality of the egg; plant extract compounds having bacteriostasis, anti-oxidation and anti-virus characteristics improve the shelf life of the egg and saves the social cost; and the coated preservative is colorless and transparent after becoming dry on the surface of the egg, and has the advantages of good safety and low cost.

The present invention discloses edible compound film coating liquid used for preservation of eggs. The compound film coating liquid is composed of pullulan, glycerin, arabic gum, a bacteriostatic agent and water. The pullulan, glycerin and arabic gum are mixed at a weight ratio of (2-5):(0.5-3):(0.5-3), water is added for stirring, and a solution with a solid content of 1-5% is prepared, then a ultrasonic treatment at a powder of 100-500 W is conducted for 5-30 minutes, and finally the bacteriostatic agent is added to the solution to enable a weight content of the bacteriostatic agent being 0.5-1.5% to obtain a finished product. The compound film coating liquid can reduce a weight loss rate, maintain a yolk index and stabilize an egg white pH value and a Huff value during egg storage processes, and the film coated eggs can still reach class A or AA after 28 days of storage, so that spoilage and deterioration of the eggs can be better prevented and a shelf life of the fresh eggs is extended.

The invention discloses an atmosphere-modified packaged egg. The atmosphere-modified packaged egg comprises a packaging bag and an egg arranged in the packaging bag and is characterized in that the packaging bag is filled with a mixed gas of CO2, O2 and N2. The invention also discloses an atmosphere-modified egg preservation method. The method comprises the following steps of: (1) putting an egg in the packaging bag; (2) carrying out atmosphere-modified packaging on the packaging bag with the mixed gas of CO2, O2 and N2; and (3) preserving the egg packaged in the step (2) in an environment of 10-40 DEG C. In the atmosphere-modified packaged egg and the atmosphere-modified egg preservation method provided by the invention, O2 is introduced on the basis of a conventional atmosphere-modified egg preservation method so as to improve the preservation quality of the eggs under an anaerobic condition and prolong the preservation time of the eggs. The atmosphere-modified packaged eggs stored at a room temperature can achieve favorable preservation effect, can be locally preserved and have extremely high popularization values.

The present invention relates to a preparation method of PVDC latex for egg freshness retaining coating. The method is characterized in that the PVDC latex comprises the following components in parts by mass: 80-90 parts of PVDC copolymer emulsion, 5-10 parts of dibutyltin dilaurate, 10-15 parts of film coalescing aid, 0.5-1.0 part of dispersant, 0.1 part of defoamer, and 10-15 parts of softened water. The latex presents a white color for a long term, is prevented from yellowing, is good in stability, has no smell, and can be directly used to coat the surface of the eggs. After coating the film, the coating is transparent and has relative good barrier properties, moisture resistance, etc.

The invention discloses a composite chitosan coating film for poultry egg preservation as well as a preparation method and application thereof, and belongs to the technical field of coating film preservation. The preparation method of the composite chitosan coating film for poultry egg preservation comprises the following steps of: 1, preparing nano-silver sol; 2, preparing a nanosilver-titanium dioxide composite colloid; 3, preparing a chitosan coating film; and 4, preparing the composite chitosan coating film for poultry egg preservation. The invention further discloses the composite chitosan coating film for poultry egg preservation, which is obtained by adopting the preparation method, and the application of the composite chitosan coating film. The composite chitosan coating film obtained by adopting the preparation method can be used for performing cleaning and degerming, preventing invasion of bacteria and oxygen, preventing loss of water and CO2 in eggs, maintaining the pH valueof protein to be less than 7, inhibiting respiration in the eggs, preventing growth and propagation of aerobic bacteria, delaying egg white hydration, inhibiting yolk dispersion and prolonging the shelf life of fresh poultry eggs.

The invention provides a method for prolonging the preservation period of rice leafroller eggs. The invention provides an egg preservation method which can firstly implement progressive cooling training on the rice leafroller eggs, then keep for a long time at the temperature of 15 DEG C and further perform progressive heating activation against the problem that rice leafrollers can not be kept with high efficiency for the long time during indoor rearing. The method is characterized in that the method comprises the following steps of: keeping the eggs laid at the temperature of 25 DEG C at 23 DEG C, 21 DEG C, 19 DEG C and 17 DEG C for 2 hours, 4 hours, 8 hours and 10 hours respectively, then placing at 15 DEG C, preserving for a certain number of days, further sequentially keeping the eggs at 17 DEG C, 19 DEG C, 21 DEG C and 23 DEG C for 2 hours, 4 hours, 8 hours and 10 hours respectively, and then hatching the eggs at 25 DEG C. According to the method disclosed by the invention, the eggs can be effectively preserved for 22 days, and the hatching rate is 75% of that at the normal temperature of 25 DEG C. According to the method disclosed by the invention, the flexibility in rearing of the rice leafrollers can be effectively improved, the cost can be reduced, and powerful guarantee can be provided for smooth development of test research of the rice leafrollers.

The invention is an egg antistaling agent for preserving eggs fresh, the egg antistaling agent mainly consists of calcium oxide, sodium chloride and water, and it can be prepared to a corresponding egg antistaling agent through a certain special production process. Not only is the preservation for egg of the invention fine, but also the invention is low-cost, easy to preparing and suitable for general eggs storage and use of family.

The invention discloses a preparation method of a Chinese herbal medicine fermentation preparation for egg preservation. The preparation method comprises the following process steps: (1) mixing honeysuckle flowers, dandelion and gingers into Chinese herbal medicine powder, and then adding water to the Chinese herbal medicine powder to prepare slurry, wherein the water adding amount is 1 to 10 times of the mass of the honeysuckle flowers; (2) heating the slurry prepared in the step (1) to 95 DEG C-100 DEG C, and maintaining the temperature for 2 to 5 hours to ensure sufficient sterilization, and then cooling to 30 DEG C-40 DEG C; and (3) adding probiotic mixed bacteria liquid, soya bean meal and molasses to the sterilized and cooled slurry in the step (2), and sealing and fermenting for 168to 240 hours, and after the fermentation is completed, filtering to obtain the Chinese herbal medicine fermentation preparation. According to the invention, the biological fermentation technology isused for extracting the active ingredients of the Chinese herbal medicine, and the effective components of the bacterial fermentation liquid and the Chinese herbal medicine extract are synergisticallyacted to obtain a better egg preservation effect, and the method is simple, safe and environmentally friendly, and is suitable for promotion.

The invention discloses an egg preservation technology. The egg preservation technology comprises the following steps: S1, performing pretreatment on eggs by using a mixed solution of calcium hydroxide and sodium citrate; S2, heating 100 parts of water to 95-105 DEG C, adding 6-8 parts of polyvinyl alcohol, 2-4 parts of sodium alginate, 0.4-0.6 part of konjac gum and 3-5 parts of mica powder, carrying out stirring until complete swelling, cooling the mixture to room temperature so as to obtain mixed gel, dissolving 0.1-0.3 part of potassium sorbate and 0.06-0.1 part of licoflavone in 6-8 partsof ethanol so as to obtain a solution, dropwise adding the solution into the mixed gel, and carrying out ultrasonic dispersion so as to obtain a coating freshness-keeping agent; S3, performing air-spraying by using the coating freshness-keeping agent so as to have the coating freshness-keeping agent uniformly deposited on surfaces of eggs; and S4, sequentially spraying a lysozyme solution of which the concentration is 0.1-0.2% and an aqueous chlorine dioxide solution of which the volume concentration is 30-50ppm, and carrying out preservation at 2-6 DEG C for standby application. According tothe egg preservation technology, a soaking method, a coating method and a refrigerating method are integrated so as to perform treatment on eggs, so that water evaporation from eggs and microbial invasion through egg shell are prevented so as to slow down life activity and nutrient loss of the eggs; and thus, shelf lives of the eggs can be effectively extended.

The invention discloses a spotted-brown chicken breeding egg preservation method for increasing the hatching rate and hatching strong young chickens. According to the method, the spotted-brown chicken breeding egg preservation factors such as the temperature, the humidity and the time are strictly controlled, therefore, embryo aging and dying are effectively prevented, the breeding egg hatching rate is increased, and the hatched young chickens are robust in body, active in spirit and high in disease resistance and survival rate; tests prove that through the method, the breeding egg hatching rate can be increased to 96.8% or above.

The invention discloses an egg preservation method. The egg preservation method can effectively prolong the preservation time of eggs, and is low in cost and simple in operation. According to the technical scheme, the egg preservation method comprises the following steps: soaking eggs in a 30% to 45% sodium chloride solution for 30 minutes; and then coating egg shells with a preparation comprising sodium benzoate, dextrin and water in a ratio of 1 to 6 to 100. The egg preservation method has the beneficial effects that bacteria outside the eggs are exterminated with sodium chloride, and sodium benzoate with a preservative characteristic and dextrin capable of forming an adhesive in boiling water are used to form a film on each egg shell, so that the preservation time of the eggs can be effectively prolonged; in addition, the preparation cost is low, and the operation is simple and feasible.

The invention discloses a Chinese medicinal herb composite egg preservative, consisting of the following raw materials in parts by mass: 10-20 parts of dandelion, 10-20 parts of Chinese violet, 20-25 parts of bletilla and 1,000 parts of water. The preservative is low in cost, simple in preparation, convenient to use and operate and easy to popularize and apply. Chinese medicinal herbs are used as raw materials, so the preservative does not have toxic or side effect and meets the requirements of food safety. A film formed by the preservative is not compact as paraffin, so eggshells treated by using the preservative become dry easily and have a very good sensory effect. Experimental results show that eggs can be preserved for 14 days more under the high-temperature summer natural condition by adopting the preservative.

The invention relates to a silkworm egg preservation method. The silkworm egg preservation method comprises the following steps: (1) selection of spawning paper, (2) spawning after-treatment and (3) silkworm egg storage. After testing, the incubation success rate of silkworm eggs is greatly increased; and by utilizing a common refrigeration method, the incubation success rate of the silkworm eggs is only 42%; by utilizing the silkworm egg preservation method, the incubation success rate of the silkworm eggs is increased to be above 60%, and the effect is remarkable.

The invention discloses an intelligently controlled environment-friendly type egg preservation box device. The device comprises a shell and an egg frame arranged in the shell, wherein a plurality of egg holes used for containing eggs are formed in the egg frame, detectors used for detecting whether the eggs are placed or not are arranged in the egg holes and in a one-to-one correspondence mode, and a reminding device is arranged in the shell; and the reminding device is coupled with the detectors and comprises a microcontroller, a display device and a voice alarm device. According to the intelligently controlled environment-friendly type egg preservation box device, the egg holes are arranged so that the eggs can be effectively placed; and the detectors and the reminding device are arranged so that whether the eggs have expired or not can be effectively detected.

The invention relates to a sturgeon egg preservation balance solution, wherein the balance solution comprises: 1.0 g / L of glucose, 0.95 g / L of HEPES buffer salt, 0.8-1.2 g / L of bovine serum albumin BSA, 0.41g / L of NaH2PO4, 0.38g / L of KCl, 0.23g / L of MgSO4, 7.25g / L of NaCl, 0.147g / L of CaCl2, 200,000 IU / L of penicillin, and 0. 2g / L of streptomycin sulfate, wherein the pH value is adjusted to be thesame as the body cavity fluid. The balance solution of the invention can realize the short-term preservation of the egg of Chinese sturgeon, the egg of acipenser schrenckii, and the egg of acipenserdabryanus, the storage temperature is 16 DEG C, after 6 hours of storage, the fertilization rate of Chinese sturgeon egg is 77.35%, the hatching rate is 80. 06%, the abnormal rate is 0, the fertilization rate of acipenser schrenckii egg is 89.97%, the hatching rate is 91.24%, the abnormal rate is 0, the fertilization rate of acipenser dabryanus egg is 90.03%, the hatching rate is 89.45%, and the abnormal rate is 0. 47%, so that the solution can be used to solve the technical problems caused by the unsynchronized spawning induction effect time of artificial breeding of male and female sturgeon.

The invention discloses a polyvinyl alcohol-based coating preservation packaging material and a preparation method thereof and relates to the field of coating film processing. The polyvinyl alcohol-based coating preservation packaging material is prepared from polyvinyl alcohol, stearic acid and glutaraldehyde according to a volume ratio of 20:8:1. According to the polyvinyl alcohol-based coating preservation packaging material prepared by taking the glutaraldehyde as a cross-linking agent, the film-forming permeable rate can be effectively reduced, the film-forming antibacterial property is obviously enhanced, the polyvinyl alcohol-based coating preservation packaging material can be used for salted egg preservation package, and the quality guarantee period can be effectively prolonged.

The invention provides an egg-preserving humic acid film and a preparation method and a using method thereof, and belongs to the field of food preservation. The egg-preserving humic acid film is a uniform mixture prepared from humic acid, chitosan, glycerol, alkyl polyglycoside, guar gum and water as main raw materials, solves the problems of resource waste, poor preservation quality and single function caused by the conventional mechanical egg preservation, and has the advantages of good antibacterial and preservative effect, convenience in operation, low cost and the like.

The invention discloses an egg preservative free from toxic and side effect. The egg preservative, which is smeared on surface of eggshell, plays the role of preventing corrosion and mould and is free from toxic and side effect. A technical scheme is realized by the follows: the egg preservative free from toxic and side effect is composed of the following components by weight percent: 15-18% of chitosan, 0.5-1% of sodium sulfite and 84.5-81% of water. The egg preservative disclosed by the invention has the beneficial effects that the adopted chitosan is one of internationally accepted novel and safe food preservatives; the sodium sulfite has an anticorrosion effect, and cannot harm a human body if a few amount of preservative is added.

The invention discloses a method for sterilizing and preserving eggs by ozone, which comprises the steps that: on the conditions of normal temperature of 20 DEG C plus or minus 2 DEG C and normal pressure, which is standard atmospheric pressure, eggs which are laid 1 to 7 days ago are immersed in an ozone water solution with a concentration of 6mg / L, then the eggs are taken out 10 minutes later and then naturally dried with air; then the processed eggs can be preserved for 30 days without going bad by being stored in the environment with the temperature of 20 DEG C plus or minus 2 DEG C and the relative humidity of 70 percent. The invention has a good application prospect in eggs preservation.

The invention belongs to the technical field of insect pest prevention and treatment, and particularly relates to an Orius sauteri egg preservation method suitable for large-scale breeding. The Orius sauteri egg preservation method suitable for the large-scale breeding comprises research of egg-laying substrate selection and research of a low-temperature preservation method, wherein the research of the low-temperature preservation method comprises research of constant-temperature condition preservation and research of varied-temperature condition preservation. By use of the Orius sauteri egg preservation method suitable for the large-scale breeding, kidney beans with a high hatching rate, good preservation performance, rot resistance and cold storage resistance are selected to serve as an egg-laying substrate, the hatching rate of the Orius sauteri is improved through the varied-temperature preservation way, the commercialization, popularization and application process of the Orius sauteri is quickened, the invention is favorable for preventing and treating pests in China and is an egg laying substrate which can be easily obtained, has a low cost, can supplement water, has good preservation performance, resists cold storage, has more implanted eggs, has the high hatching rate and can be preserved for a long time, and the low-temperature preservation method, and the Orius sauteri egg preservation method suitable for the large-scale breeding more favorably provides technical support for the large-scale breeding of the Orius sauteri.

The invention relates to an egg preservation box capable of preventing eggs from being broken. The egg preservation box comprises a box body, wherein two sides of the top of the box body are connectedwith two sides of the bottom of a box cover through insertion structures formed by clamping grooves and clamping blocks; a hand-lifted handle is arranged in the central position of the top of the boxcover; mounting grooves are formed in external walls of four sides of the box body and are connected with damping plates through first damping springs which are distributed as arrays; four corners ofthe bottom of an inner cavity of the box body are connected with four corners of the bottom of a first placing groove through springs; the box body is capable of achieving double damping operations in a horizontal direction and a vertical direction; meanwhile, the box body can be fixed; placing grooves can automatically and stably extend out of the box body by opening the box cover under the action force of the springs; the eggs can be conveniently taken and placed; the egg preservation box is high in air permeability; the sizes of fixing grooves can be automatically adjusted according to thesizes of the eggs; the effect of fixing the eggs is excellent; the eggs can be independently placed; the phenomenon that the eggs are broken due to collision among the eggs is avoided.

The invention provides an egg fresh-keeping box. The main structure of the fresh-keeping box is an inflatable structure; when not in use, it can be compressed into a flat shape to save space; Protects the shell of eggs from damage, while also being breathable and space-saving when not in use.

The invention discloses a protection device of an egg preservation box. The protection device comprises a protection box, wherein a partition plate is fixedly connected to the left inner wall and theright inner wall of the protection box, damping protection mechanisms are arranged in the parts, located on the upper side and the lower side of the partition plate, of the protection box , and the damping protection mechanisms are used for protecting eggs; and each damping protection mechanism comprises two damping protection plates fixedly connected to the left inner wall and the right inner wall of the protection box respectively, each damping protection plate is provided with a groove, a sliding rod is fixedly connected to the upper and lower inner walls of each groove, each sliding rod isslidably sleeved with two sliding seats and a compression spring, and two ends of each compression spring are fixedly connected with two sliding seats respectively. By means of the damping protectionmechanisms, eggs are also protected, collision between eggs can be effectively prevented, the influence of external force collision on eggs can be reduced to a great extent, and the eggs can be conveniently taken and protected.

The invention discloses a simple egg preservation rack which comprises a body (1). At least one preservation unit (2) is arranged on the body (1). The preservation units (2) penetrate the body (1) and include first holding parts (21), second holding parts (22), third holding parts (23) and fourth holding parts (24). The first holding parts (21) and the third holding parts (23) are the same in structure and are arranged in a central symmetry manner. The second holding parts (22) and the fourth holding parts (24) are the same in structure and are arranged in a central symmetry manner. Each first holding part (2) comprises an arc bottom, wherein triangular protrusions are symmetrically arranged on the two sides of the arc bottom, the arc bottom is in smooth transition with the protrusions, and protruding triangle vertex angles are 30-120 degrees. Each second holding part (22) comprises two intersected straight lines which are connected through fillet transition. The simple egg preservation rack is simple in structure, and eggs are not likely to be broken in the situation that the eggs are subjected to large external impacts.

The invention discloses an egg preservation box comprising a preservation box body and a box cover. An egg bracket is arranged in the preservation box body. A hollow buffer cover is arranged around the preservation box body and is internally provided with an air suction device. A water tank is arranged at the bottom of the preservation box body. A permeable plate is arranged between the water tank and the egg bracket. The bottom of the water tank is provided with an opening provided with a plug. The egg bracket is made of rubber. The depth of an egg seat groove in the egg bracket accounts for 1 / 2 of the length of eggs. Through the egg preservation box disclosed by the invention, the effect that the eggs are not broken due to mutual collision during transport can be ensured, air ventilation can also be enhanced, humidity in the egg preservation box is increased, and the preservation time of the eggs is prolonged.

The invention discloses an egg preservative being safe and being free of toxic and side effects, which is prepared from the raw materials including, by weight, 20-25 parts of sodium lactate, 24-30 parts of sodium sulfite, 12-18 parts of chitosan, 10-20 parts of Chinese violet, 8-15 parts of bletilla striata, 60-75 parts of acetic acid, 10-16 parts of a surfactant and 40-45 parts of water. Compared with the prior art, the egg preservative is low in cost, is easy to prepare, and can form a thin film, which has good preservative and sterilizing performance, long preservation period and good moisturizing effect, on eggs.

The invention relates to the technical field of eggs preservation and particularly relates to a method for modifying atmosphere to preserve eggs by CO2. The method comprises the following steps of: placing fresh eggs with clean shells into an atmosphere modifying bag; adding a drying agent into an atmosphere modifying bag; modifying the atmosphere and inflating the atmosphere modifying bag with CO2; and preserving packaged eggs in an environment at the temperature of 10-30 DEG C. According to the method, the cost is low, the operation is simple and the preservation effect is remarkable; the method has a good promotional value.

The invention discloses an intelligently controlled environment-friendly type egg preservation box device. The device comprises a shell and an egg frame arranged in the shell, wherein a plurality of egg holes used for containing eggs are formed in the egg frame, detectors used for detecting whether the eggs are placed or not are arranged in the egg holes and in a one-to-one correspondence mode, and a reminding device is arranged in the shell; and the reminding device is coupled with the detectors and comprises a microcontroller, a display device and a voice alarm device. According to the intelligently controlled environment-friendly type egg preservation box device, the egg holes are arranged so that the eggs can be effectively placed; and the detectors and the reminding device are arranged so that whether the eggs have expired or not can be effectively detected.