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108results about How to "No change in flavor" patented technology

Paddy rice producing production technology for removing pesticide residue

The invention provides a paddy rice producing production technology for removing pesticide residue, and relates to the technical field of the processing and the producing of food, wherein the production technology comprises the following steps of: cleaning paddy, separating hull grains from hulled materials, removing the pesticide residue by means of coarseness humidifying, milling rice, removing the pesticide residue in a polishing way, and removing the pesticide residue by ultrasonic wave. The paddy rice producing production technology for removing the pesticide residue provided by the invention combines with the production of paddy rice producing, mainly aims at solving the problem that the paddy contains the pesticide residue, is scientific in technological process design, reasonable in technical method, and low in production cost, effectively and reliably removes the pesticide residue, can subsidiarily kill the toadstool in the paddy, can produce the paddy clearly, guarantees the quality safety of paddy-processed products, is free from secondary pollution of rice products in the process of processing and producing, can not change the original quality, nutrition and special flavor of the paddy, is particularly suitable for preparing the products which are higher in nutrition value and economic value such as germ-remaining rice, the clean rice and the like besides the common rice, and is further good for reducing the pesticide residue of byproducts prepared by comprehensive utilization.
Owner:DANYANG JIAHE RICE

Molecularly imprinted monodisperse microsphere having specific adsorption for nitrosamine specific to tobacco, preparation method of the microsphere, and applications of the microsphere

The invention provides a molecularly imprinted monodisperse microsphere having specific adsorption for nitrosamine specific to tobacco. The molecularly imprinted monodisperse microsphere characterized in that: the microsphere is prepared by a swelling polymerization method by adopting nicotinamide as a template molecule, methacrylic acid as a functional monomer, trimethylolpropane trimethacrylate as a crosslinking agent, polystyrene emulsion as seed balls and phthalic acid as a swelling agent; and the invention also provides a preparation method of the microsphere and applications of the microsphere. The molecularly imprinted monodisperse microsphere is uniform in particle and good in dispersibility, and has specific adsorption for the nitrosamine specific to the tobacco. The molecularly imprinted monodisperse microsphere can reduce toxic components in cigarette without generation of obvious influence on the original quality.
Owner:CHINA TOBACCO GUANGDONG IND

Preparation method of pickled pepper type poultry product

The invention discloses a preparation method of pickled peppery type poultry product, comprising the following steps: sterilizing and disinfecting a multi-stage GMP (Good manufacturing practice) workshop, then washing, unfreezing, selecting and slitting poultry raw materials, washing again, then boiling the cleaned raw materials, washing the raw materials after being boiled, cooling, putting the raw materials into pre-prepared material water added with compound fresh-keeping color fixative, then taking out for vacuum packaging, and finally, radiating and sterilizing the materials. The pickledpeppery type poultry product prepared by the method is rich in nutrition, keeps the special mouthfeeling and flavor of the poultry product, the nutrition content and the flavor of the pickled pepperytype poultry product can be kept to the greatest degree, the shelf life of the product is prolonged, and as for the method, the process is simple and the investment cost is low.
Owner:ANHUI TRUELOVE FOODS

Preparation method and application of natural material composite system immobilized bifunctional enzyme used for wine

Belonging to the technical field of enzyme preparations and wine brewing additives, the invention relates to a preparation method and application of a natural material composite system immobilized bifunctional enzyme used for wine. The preparation method includes: subjecting the free bifunctional enzyme that is extracted from Providencia sp. JNB815 and has the activity of degrading urea and ethyl carbamate (EC) to chitosan adsorption, gelatin embedding and genipin crosslinking, thus obtaining the immobilized bifunctional enzyme. When the immobilized enzyme takes urea as the substrate, the optimum temperature is 40DEG C, and the optimum pH is 4.0; when EC is adopted as the substrate, the optimum temperature is 60DEG C, and the optimum pH is 4.5. The storage half-life periods of two enzyme activity are 54d and 45d respectively. The invention also relates to application of the immobilized bifunctional enzyme, which can reach a urea removal rate of 93.03% and an EC removal rate of 56.60%. According to the invention, the process conditions of original fermented wine cannot be changed, the wine flavor is not changed, and the immobilized bifunctional enzyme can be reused, and has more advantages in the application of removing trace urea and EC from yellow wine.
Owner:JIANGNAN UNIV

Edible salt with healthcare function

The invention discloses edible salt with a healthcare function, and belongs to the technical field of edible salt. The edible salt with the healthcare function comprises the following components in percentage by weight: 60 to 85 percent of edible salt, 2 to 10 percent of potassium alginate and 10 to 30 percent of potassium chloride, preferably 65 to 82 percent of edible salt, 4 to 10 percent of potassium alginate and 13 to 25 percent of potassium chloride. The production process comprises the following steps of: (1) dissolving required potassium alginate by using hot water for later use; (2) uniformly mixing the potassium chloride and the edible salt in a cone mixer for later use; (3) spraying the solution prepared by the first step on the raw materials prepared by the second step by using a spray nozzle and mixing the solution and the raw materials uniformly in the cone mixer; (4) continuously feeding the materials into a fluidized drying bed, drying at the temperature about 75 to 85 DEG C to make the water content be lower than or equal to 0.2 percent; and (5) packing the manufactured products as required, and warehousing the products after passing the detection. In the edible salt with the healthcare function, not only the solubility and the flavor of the edible salt are not changed, but also the aims of preventing and controlling hypertension can be achieved.
Owner:宋杰 +1

Liquid dairy product and preparation method thereof

The invention provides a method for preparing a liquid dairy product containing sensitive substances, comprising the following steps: preparing a sterile liquid containing sensitive substances through a filtering sterilization method; and adding the sterile liquid into liquid milk in a sterile addition method so as to obtain the liquid dairy product containing the sensitive substances. The invention also discloses the liquid dairy product with a long quality guarantee period, which is prepared by the method.
Owner:INNER MONGOLIA MENGNIU DAIRY IND (GRP) CO LTD

Solid instant health care tea and preparation method of solid instant health care tea

The invention discloses solid instant health care tea, which is mainly prepared from the following ingredients in parts by weight: 200 to 350 parts of Puer tea, 300 to 500 parts of fresh burdock, 300 to 500 parts of fresh garlics and 50 to 100 parts of Chinese date. The solid instant health care tea has the advantages that the extraction process is simple, the extraction efficiency is high, the energy consumption and the loss are little, the cost is low, the active ingredients of obtained products are many, and the health care effect is good.
Owner:LIAOCHENG UNIV

Conditioning agent for improvement of Kiwi berry shape and its preparation process

The invention discloses an adjuster to improve Chinese gooseberry shape, which comprises the following parts: 6-benzyl amino adenine, indolebutyric acid, ciltoprazine, multiple amino acids and GA4+7. The preparing method comprises the following steps: dissolving 6-benzyl amino adenine; dissolving even-0 agent, DA-6C, JFC, indolebutyric acid, ciltoprazine, GA4+7; adding the solution in the amino acid. The invention provides each amino acid, which doesn't change the flavor of fruit.
Owner:牛俊武

Processing method for improving gelation ability of shrimp flesh balls

The invention discloses a processing method for improving the gelation ability of shrimp flesh balls, belonging to the technical field of food processing. By directly using frozen peeled shrimps as the raw material, the processing method integrates techniques such as radio frequency unfreezing, addition of shrimp head protein hydrolysate, low-temperature mild fermentation and gelatinization of cold-resistant lactic acid bacteria and the like. According to the processing method disclosed by the invention, the jelly strength and elasticity of a shrimp flesh ball product are greatly enhanced, the gelation ability of the shrimp flesh ball product is improved, and the edible quality of the shrimp flesh ball product is comprehensively enhanced. According to the processing method disclosed by the invention, no exogenous quality improvers are added, so that the product is safe, nutritional and sanitary, and the processing method is simple and convenient to operate, easy to master technical parameters, low in production cost and convenient for industrial processing of shrimp flesh balls.
Owner:FUJIAN AGRI & FORESTRY UNIV

Cold fresh processing method for roe

The invention discloses a cold fresh processing method for roe, which comprises the following steps of: performing first pass of sterilization and refreshing processing on stripped, twisted, cleaned and graded roe by using ozone water so as to directly kill pathogenic bacteria and effectively keep the flavor and shape of the roe; and cleaning the roe processed by the ozone water by using ice water, draining, putting the roe into a -1.5 to 0 DEG C freezer for cold fresh blending so as to effectively prevent the color of the roe from being changed in the processing and storing period and keep good freshness and nutritional ingredients of a product. The method has the advantages of simple and convenient operation and good practical value and application prospect.
Owner:福州日兴水产食品有限公司

Whey protein composition and preparation method thereof

ActiveCN102599402AGood brewabilityOvercome the disadvantage of poor brewabilityFood preparationAdditive ingredientWhey protein isolate
The invention discloses a whey protein composition and a preparation method thereof. The formula of the whey protein composition comprises the following components in percentage by mass based on the total weight of the whey protein composition: 40 to 90 percent of whey protein concentrate and / or whey protein isolate, 0 to 50 percent of carbohydrate, 0.6 to 1.8 percent of phenylalanine, 0.3 to 0.9percent of valine, 0.06 to 0.2 percent of methionine, 3 to 6 percent of beta-cyclodextrin, 0.5 to 1.0 percent of sodium carboxymethylcellulose and 0.2 to 0.6 percent of soybean phospholipid. The preparation method comprises the following steps of: (1) mixing the phenylalanine, the valine, the methionine, the beta-cyclodextrin, the sodium carboxymethylcellulose and water to obtain an aqueous solution, and drying to obtain an amino acid mixture; (2) mixing the whey protein concentrate and / or the whey protein isolate, the carbohydrate and the amino acid mixture to obtain a dry mixture; and (3) granulating the dry mixture obtained in the (2) and the soybean phospholipid, and thus obtaining the whey protein composition. The whey protein composition has good instant property, high nutritional value and good flavor and mouthfeel.
Owner:BRIGHT DAIRY & FOOD CO LTD

Edible food packaging film using wheat dietary fiber as substrate and preparation method thereof

The invention relates to a food packaging film and a preparation method thereof, and particularly relates to an edible food packaging film using wheat dietary fiber as a substrate and a preparation method thereof, belonging to the field of food packaging. The edible food packaging film has good barrier performance and fine mechanical properties, and can be used for preparing inner packaging materials of various foods. Besides, the edible food packaging film does not change the appearance and flavor of the food, can be eaten together with the food, and can not generate harmful gas and peculiar smell and cause white pollution, thereby avoiding environmental pollution.
Owner:SHENYANG CHUANGDA TECH TRADE MARKET

Edible packaging film taking corn dietary fibre as matrix and preparation method thereof

The invention relates to a food packaging film and a preparation method of the food packaging film, in particular to an edible packaging film taking corn dietary fibre as a matrix and a preparation method of the edible packaging film, belonging to the field of food package. The food packaging film provided by the invention has good barrier property and excellent mechanical property, can be used for preparing internal packaging materials of all foods, cannot change appearance and flavour of food and can be eaten with food, and cannot produce harmful gas and odours as well as cause ''white pollution'' and environmental pollution.
Owner:SHENYANG CHUANGDA TECH TRADE MARKET

Processing method for maintaining elasticity and flavor of clam meat

InactiveCN101946920APrevent contamination and reproduceStay flexibleFood preparationFood flavorRefrigeration
The invention discloses a processing method for maintaining the elasticity and the flavor of clam meat, which comprises the steps of: selecting claw materials, temporarily breeding the clam to disgorge sands, sterilizing the clam by ozone after the clam is cleaned, then vacuum-packaging the clam by using high-barrier gas composites, then atmospherically cooking the packed clam, and finally cooling and freezing the clam for storing. The method can effectively maintain the elasticity and the sauce flavor of the clam and also can effectively prevent air in or outside a packaging bag from mutually penetrating during the refrigeration and the shelf life of the clam because the clam is vacuum-packaged by using the high-barrier gas composites, ensures the quality of the clam and prolongs the shelf life of the product.
Owner:FUQING LONGYU FOOD DEV

Health-preserving porridge with efficacy of reducing blood sugar level and production method of porridge

The invention discloses health-preserving porridge with the efficacy of reducing the blood sugar level. The health-preserving porridge is prepared from the following main raw materials in parts by weight: 1-5 parts of poria cocos, 1-3 parts of lythrum salicaria, 2-6 parts of dalbergia wood, 30-40 parts of celery, 80-180 parts of corn, 4-10 parts of cicada ecdysis, 2-6 parts of polygonum multiflorum, 5-8 parts of coptis chinensis, 6-10 parts of the root of red-rooted salvia, 4-8 parts of chrysanthemum flowers, 8-12 parts of radix angelicae pubescentis, 6-10 parts of japanese thistle herb and 10-20 parts of white sugar. A traditional Chinese medicine composition is in accordance with the principle of treating hyperglycemia in traditional Chinese medicines, the selected medicinal materials have the efficacy of reducing the blood sugar and are matched with foods, and the health-preserving porridge can achieve the effects of relieving depression and qi stagnation, relieving pain, calming nerves and arresting convulsion and has the extremely good treatment effect on hyperglycemia patients, and therefore, the health-preserving porridge is a relatively ideal food for treating hyperglycemia.
Owner:NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Health protection tea with functions of promoting qi circulation and resolving food retention and preparation method thereof

The invention discloses a health protection tea with functions of promoting qi circulation and resolving food retention, which is mainly prepared from the following raw materials in parts by weight: 200-350 parts of puer tea leaves, 300-500 parts of fresh arctium, 300-500 parts of fresh garlic and 50-80 parts of dextrin. The extraction technology provided by the invention is simple, the extraction efficiency is high, the energy consumption and loss consumption are less, and the cost is low; and the effective ingredients of the obtained products are multiple, and the health protection effect is favorable.
Owner:LIAOCHENG UNIV

Anti-radiation blood-enriching health tea cream and preparation method thereof

The invention discloses an anti-radiation blood-enriching health tea cream and a preparation method thereof. The tea cream is mainly prepared from the following raw materials in parts by weight: 40 parts of green tea, 13 parts of colla corii asini, 16 parts of astragalus membranaceus, 8 parts of eclipta prostrate and 7 parts of radix puerariae. The anti-radiation blood-enriching health tea cream provided by the invention has the characteristics that good anti-radiation effect and good convenience for carrying can be achieved, after oral administration, the radiation protection effect on the whole human body can be quickly realized, the immunity can be boosted, the blood glucose can be reduced, and the efficacy of beautifying can be achieved, and chief of all, qi and blood can be replenished, blood can be nourished and the spleen can be invigorated, the vital essence and marrow can be supplied, common materials in local places are taken as the raw materials, so that the cost is low, the anti-radiation blood-enriching health tea cream is a pure natural drink and causes no burden to the human body even dinking for long time.
Owner:车传东

Cleaning agent for natural fruit and vegetable on removing pesticide residue and killing bacteria

The invention discloses a cleaning agent for natural fruits and vegetables on removing pesticide residues and killing bacteria. The cleaning agent is prepared from the following raw materials in percentage by weight: 10%-25% of chitosan, 3%-5% of albizzia julibrissin leaf extractives, 8%-15% of glycine betaine, 10%-20% of citric acid, 1%-5% of lemon essential oil, 0.5%-2% of sodium chloride and the balance of deionized water. The cleaning agent disclosed by the invention is capable of effectively removing the pesticide residues and heavy metal ions which are positioned on the surfaces of the fruits and vegetables without changing the flavor of the fruits and vegetables, and the raw materials are natural components without polluting the environment or causing any injury on a body.
Owner:馥稷生物科技发展(上海)有限公司

Tea ointment for relieving radiation induced leukopenia and preparation method thereof

The invention discloses tea ointment for relieving radiation induced leukopenia, which is mainly prepared from the following raw materials in parts by weight: 30-45 parts of green tea, 15-25 parts of burdock, 18-25 parts of astragalus membranaceus, 6-8 parts of rehmanniae vaporata, and 8-15 parts of colla corii asini. The tea ointment disclosed by the invention has the characteristics of being good in anti-radiation effect and convenient for carrying; by being taken orally, the tea ointment can take the effect of protecting whole-body radiation rapidly and also has the effects of increasing immunity, decreasing blood sugar and hairdressing; most importantly, the tea ointment is capable of replenishing qi, enriching blood, generating blood, tonifying spleen, supplying essence and beneficiating marrow; in addition, the locally common green tea is used as the main raw material; the tea ointment containing tea fragrance and capable of relieving radiation induced leukopenia is prepared from the green tea and other medicinal materials.
Owner:张士义

Production method of duck seasoned with soy sauce

The invention provides a production method of a duck seasoned with soy sauce. According to the technical scheme, aiming at relieving nutrition loss caused in the production process, a conventional production technology is improved from two aspects, wherein on one hand, the dosage of salt is reduced, a white bar duck is salted in a pickling process by using miso soup with low salt content, diluent soup is adopted in the follow-up sauce cooking process, and direct contact between duck meat and the salt is reduced as much as possible, so that an original structure of protein is retained, and the flavor is not changed. Besides, boiling is performed in a mode of low temperature of 70 to 75DEG C, and uniform heating of the inside and the outside of a duck body is guaranteed by a mode of filling an inner cavity of the duck body with glass beads; meanwhile, the boiling time is prolonged, and the meat of the duck body is still enabled to be thoroughly cooked and become soft and pappy under the condition of relatively low temperature. By means of a low-temperature heating mode, nutrients can be retained as much as possible; meanwhile, original flavor of duck meat is favorably guaranteed, and a mouth feel level is improved.
Owner:天津滨海新区鸿博鸿食品有限公司

Natural and nontoxic washing agent for removing pesticide residues on fruits and vegetables

The invention provides a natural and nontoxic washing agent for removing pesticide residues on fruits and vegetables. The natural and nontoxic washing agent for removing the pesticide residues on the fruits and the vegetables is prepared from the following raw materials in parts by weight: 10 to 15 parts of modified starch, 10 to 15 parts of gypsum and 9 to 18 parts of lime putty, and the raw materials are made into an emulsion. Compared with the prior art, the natural and nontoxic washing agent for removing the pesticide residues on the fruits and the vegetables has the beneficial effects that the raw materials are mostly natural ingredients; the natural and nontoxic washing agent for removing the pesticide residues on the fruits and the vegetables does not pollute an environment, has no harm to a body, and can be used for effectively removing the pesticide residues on the surfaces of the fruits and the vegetables when being added into water to wash the fruits and the vegetables; the flavors of the fruits and the vegetables are not changed.
Owner:JINAN KANGZHONG PHARMA TECH DEV

Integrated treatment method for reducing bioamine content in yellow wine

The invention discloses an integrated treatment method for reducing bioamine content in yellow wine and belongs to the technical field of yellow wine brewing. The method, on the basis of not changing a yellow wine brewing process, includes three steps of: adding propolis and [epsilon]-polylysine to rice before fermentation in a tank or sweet mash before alcohol fermentation, adding laccase and copper gluconate to fermented mash liquid before finishing fermentation, and performing adsorption through a zirconyl pyrophosphate packed column before fill packaging of the yellow wine, thereby reducing the bioamine content in yellow wine by more than 80% than a conventional process, wherein the traditional indices and flavors of the yellow wine are not influenced. The method has simple operations, is totally green and environment-friendly, is free of addition of much equipment and is suitable for large-scale promotion.
Owner:FUJIAN AGRI & FORESTRY UNIV

Flavored bacon and processing technology

InactiveCN106071943ARich tasteHas a fruity flavorFood scienceMedicineRaw meat
The invention discloses a flavored bacon which is prepared from raw materials such as raw meat, a pickling material and a smoke flavoring, wherein the pickling material is prepared from the following components: star anise, cassia bark, pepper, chili, prickly ash, netmeg, salt and the like; the smoke flavoring is prepared from the following components: jujube saw dust, peach saw dust, powdered carbon, sugar, traditional Chinese medicine powder and the like. The invention further discloses a processing technology of flavored bacon. The processing technology comprises the steps of pretreatment, pickling, smoking, packaging and the like. The flavored bacon obtained according to the processing technology has rich flavor and fruit flavor, is rich in nutrient, contains various active ingredients of health traditional Chinese medicine, tastes crisp and soft, and overcomes the defect of dry and hard taste of the conventional bacon; the processing technology disclosed by the invention is simple, and can ensure that less nutrients are lost in the processing process, so as to ensure that the original flavors of the seasoners are not changed, and facilitate standardized production.
Owner:松阳县诚天和食品有限公司

Highland barley red rice draught beer brewage technique and product thereof

The invention provides a highland barley red rice draught beer with health care function and a brewage technique thereof. The highland barley red rice draught beer brewed by using the composite strains of highland barley red rice, Monascus and beer yeast has the typical characteristics of red beer. In the primary fermentation period, the dry hopping technique is utilized to ensure that more aroma and substances of the hop can enter the fermentation liquid. In the red rice strain preparation process, a fermentation tank is adopted to perform strain culture, so that the contact of the strain with the outside is reduced, thereby avoiding the influence of the external environment on the strain, and reducing unnecessary inconvenience for the highland barley red rice production and highland barley red rice draught beer brewage technique. The red rice draught beer has rose red color, and is clear, transparent and lustrous. The draught beer has abundant and fine foam, and has obvious burnt odor and refreshing and pure mouthfeel. The highland barley red rice is a pure natural high-safety product which is beneficial to human health.
Owner:西藏月王药诊生态藏药科技有限公司

Germ-free vacuum packing device applicable to irregular block-shaped meat

InactiveCN102923338BDoes not change meat qualityNo change in freshnessPackage sterilisationAir filterEngineering
The invention relates to a germ-free vacuum packing device applicable to irregular block-shaped meat. The packing device comprises an air filter device and a germ-free working cabin, wherein a vapor sterilizing trough, a weighing device and a vacuum packing machine are also arranged inside the germ-free working cabin, the vapor sterilizing trough is fixed on the outer side of a material inlet and a material outlet of the germ-free working cabin; the weighing device is arranged inside the germ-free working cabin to be close to the material inlet; and the vacuum packing machine is fixedly arranged on the right side of the weighing device to be close to the material outlet of the germ-free working cabin. Due to adopting the germ-free vacuum packing device integrating the germ-free technology and the vacuum packing technology, meat materials with irregular shape can be segmented, weighed and vacuum packed in a germ-free environment, so that the natural flavor of the meat can be maintained.
Owner:NINGXIA UNIVERSITY

Tea paste with myocardial ischemia function improving function and preparation method of tea paste

The invention discloses tea paste with a myocardial ischemia function improving function and a preparation method of the tea paste. The tea paste is prepared from the following ingredients in parts by weight: 200 to 350 parts of Puer tea, 300 to 500 parts of fresh burdock, 300 to 500 parts of fresh yam, 50 to 100 parts of Chinese date and 40 to 60 parts of astragalus. The tea paste has the advantages that the extraction process is simple, the extraction efficiency is high, the energy consumption and the loss are little, the cost is low, and the special curative effect can be realized on chronic hypertension, hepatosis and cardiac dysfunction after the tea paste is eaten for a long time.
Owner:LIAOCHENG UNIV

Radiation-proof Chinese medicinal preparation as well as preparation method and application thereof

The invention discloses a radiation-proof Chinese medicinal preparation which is prepared from the following main raw materials in parts by weight: 15-25 parts of green tea extract, 10-20 parts of propolis, 3-6 parts of lycopene, 1-5 parts of astaxanthin, 2-6 parts of polygala, 10-20 parts of lotus rhizome node, 1-3 parts of tortoiseshell, 10-30 parts of gardenia and 13-18 parts of grape seed extract. The radiation-proof tea paste has the effects of preventing radiation, maintaining beauty and keeping young, invigorating the spleen and kidneys and enhancing the immunity, and really realizes the medicinal effects; and the medicinal materials are readily available and low in cost, and the medicinal materials which are mostly quite mild do not increase economical and physical burdens to patients after being eaten for a long term.
Owner:苏庆武

Insecticidal and bactericidal method for nut roasted food

The invention discloses an insecticidal and bactericidal method for nut roasted food and relates to the technical field of nut processing. The method comprises the following steps: airing and selecting harvested nut raw materials, freezing, and carrying out insecticidal and bactericidal treatment on the frozen nut raw materials by microwave heating. Before adopting insecticidal and bactericidal treatment by microwave heating, nut raw materials are frozen firstly, so that the problem of heating nonuniformity in the microwave heating process is solved, then microorganisms, worm eggs and other diseases and insect pests in nut fruits are effectively killed, and the killing effect is good; and freezing and microwave heating are combined for insecticidal and bactericidal treatment, so that the microwave treatment time is shortened, and the problems of product discoloration and the like are avoided.
Owner:WUHU FEIYUE FOOD

Germ-free vacuum packing device applicable to irregular block-shaped meat

InactiveCN102923338ADoes not change meat qualityNo change in freshnessPackage sterilisationAir filterEngineering
The invention relates to a germ-free vacuum packing device applicable to irregular block-shaped meat. The packing device comprises an air filter device and a germ-free working cabin, wherein a vapor sterilizing trough, a weighing device and a vacuum packing machine are also arranged inside the germ-free working cabin, the vapor sterilizing trough is fixed on the outer side of a material inlet and a material outlet of the germ-free working cabin; the weighing device is arranged inside the germ-free working cabin to be close to the material inlet; and the vacuum packing machine is fixedly arranged on the right side of the weighing device to be close to the material outlet of the germ-free working cabin. Due to adopting the germ-free vacuum packing device integrating the germ-free technology and the vacuum packing technology, meat materials with irregular shape can be segmented, weighed and vacuum packed in a germ-free environment, so that the natural flavor of the meat can be maintained.
Owner:NINGXIA UNIVERSITY

Preparation method and application of immobilized acidic urease membrane

The invention discloses a preparation method and application of an immobilized acidic urease membrane, belonging to the technical field of enzymic preparations and brewing additives. The preparation method comprises the steps of: dissolving acidic urease which is separated and purified from enterobacter 9043C12 in a certain amount of chitosan solution; pouring the solution in a smooth glass plate; naturally dehydrating and drying into a membrane at a temperature of 37DEG C; and crosslinking by using micro amount of glutaraldehyde so as to obtain the immobilized acidic urease membrane, wherein the immobilized acidic urease membrane has the optimum temperature of 40DEG C, the optimum pH of 4.5, the storage half-time of 40d and the enzyme activity recovery of 64.3%. The application of the immobilized acidic urease membrane is that the urea removal rate can achieve 73% after the membrane is added in yellow rice wine and still can achieve 50% after 10-times continuous use. A product of the immobilized acidic urease membrane takes a membrane as a fixed carrier which has a large contact area and can be repeatedly used; and when the immobilized acidic urease membrane is used in the yellow rice wine, both the conditions of the original brewing process and the flavor of the wine are not changed and the urea in the wine can be removed more ideally.
Owner:JIANGNAN UNIV
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