KR20140135446A

KR20140135446A - The injection kits of carbon dioxide to maintain for long term the freshness of the food.

Info

Publication number: KR20140135446A
Application number: KR20130055697A
Authority: KR
Inventors: 이동희
Original assignee: 이동희
Priority date: 2013-05-16
Filing date: 2013-05-16
Publication date: 2014-11-26

Abstract

The present invention relates to a kit capable of injecting carbon dioxide (CO ₂ ) into a packaging container of a food to provide freshness of fruits, vegetables, fish and meat in the packaging container for a long period of time. The carbon dioxide injection kit may have a structure in which the kit housing 10 has one hole and the other hole is an open partition 50 or both the openings of the kit housing 10 are open And an empty kit housing (10) which is filled with a carbonate (20) and an acid (40) in the kit housing (10) (Carbon dioxide, 70) is easily generated by mixing the carbonate (20) and the acid (Acid, 40) independently constituted of carbon dioxide for maintaining the freshness of the food as needed. Ammonium carbonate of the starting material of being configured by the ribs (30) that can be broken easily from outside means, carbon dioxide _{(70) ((NH 4)} 2 CO 3, 100) naejineun ammonium bicarbonate in order that (NH ₄ HCO _3, (CO ₂ , 70) is added to the inside of the food container in which the cation exchange resin (80) or the ammonia odor removing acid (Acid) (80) is additionally formed to remove the ammonia odor generated as a by- And a kit (kit) capable of injecting a liquid.
[Index]
Carbon dioxide, Carbonate, Acid, Freshness of food, Packing container, Kit

Description

A carbon dioxide injection kit (kit) to maintain the freshness of the food for a long time. {The injection kits of carbon dioxide to maintain for a long time the freshness of the food.}

The present invention relates to a kit capable of injecting carbon dioxide (CO ₂ ) into a packaging container of a food to provide freshness of fruits, vegetables, fish and meat in the packaging container for a long period of time. The carbon dioxide injection kit may have a structure in which the kit housing 10 has one hole and the other hole is an open partition 50 or both the openings of the kit housing 10 are open And an empty kit housing (10) which is filled with a carbonate (20) and an acid (40) in the kit housing (10) (Carbon dioxide, 70) is easily generated by mixing the carbonate (20) and the acid (Acid, 40) independently constituted of carbon dioxide for maintaining the freshness of the food as needed. Ammonium carbonate of the starting material of being configured by the ribs (30) that can be broken easily from outside means, carbon dioxide _{(70) ((NH 4)} 2 CO 3, 100) naejineun ammonium bicarbonate in order that (NH ₄ HCO _3, (CO ₂ , 70) is added to the inside of the food container in which the cation exchange resin (80) or the ammonia odor removing acid (Acid) (80) is additionally formed to remove the ammonia odor generated as a by- And a kit (kit) capable of injecting a drug.

Food refers to a natural or processed product that contains one or more nutrients, does not contain any harmful components, can be eaten by humans, and can be digested and absorbed. Among them, food processing and cooking. The processed food is often called a food diet.

Food storage refers to the task of maintaining freshness so that its quality does not change for long. Here, the quality of the food can be divided into the quality of the ingredients and the quality of the symbolic quality. The quality of the ingredient often refers to the nutritional value of the food. The symbolic quality refers to the color, flavor, taste, texture, It means a symbolic value such as freshness.

Therefore, the purpose of food storage is to keep the quality of food of these two sides in a balanced manner, and in some cases, it may be aimed at improving the quality rather than aging the food for a certain period of time. Sometimes, depending on the nutritional quality, some are focused on, while others are focused on maintaining the quality of the sympathetic. For example, if you look at the case of vegetables, you may want to save the original shape of the vegetable as a fresh vegetable and sometimes do not think about the original shape or freshness of the vegetable. Instead, .

As such, today's food storage is mainly made up of processing, such as instant food or canned food, and storing food in a natural state by low temperature or freezing methods.

In foodstuffs, it is often called "Preservation" as "Preservation" in order to prevent the deterioration of food quality and to maintain and improve the value of the product. .

Most foods that are not processed contain abundant nutrients and moisture. These nutrients are essential components of the human body and also serve as incubators for microbial propagation. Therefore, food is in a state where microorganisms are easily reproduced and destroyed due to its nature. Once the microorganisms are propagated and destroyed, many harmful substances are formed. In some cases, the food itself, such as ptomaine, may be denatured to produce toxic substances, and in some cases, aflatoxin Microorganisms can be produced as well.

Therefore, in order to prevent food from being corrupted, it is necessary to prevent the propagation of microorganisms. However, since nutrients in food can not be taken away, measures should be taken in consideration of the relationship between nutrients that are the main constituents of foods and their favorite microorganisms.

In the case of bio food (bio food), even after harvesting, it maintains the life phenomenon such as breathing. When such a life phenomenon occurs, numerous kinds of enzymes work to cause self-digestion (autolysis), deterioration (deterioration), discoloration (discoloration), etc., Proper measures should be taken and stored.

Foods also have a complex system of components, so once the food is harvested or processed, the complex system of these components loses equilibrium and causes a variety of complex amorphous reactions.

Most foods contain a large amount of water. Water in these foods solubilizes various components to accelerate the reaction between components and promote the growth of microorganisms, but causes food corruption under appropriate conditions in which microorganisms can reproduce. Therefore, storage is essential to preserve the quality and safety of food.

The benefits that can be gained by modestly storing food are diverse. First, it maintains and improves the quality of the food itself and smoothly manages the eating habits through the production and distribution of the planned food. It can be used in various aspects such as economic, industrial, social and cultural aspects in human life It can have a profound effect.

Moreover, in the case of fruit and vegetables, in the case of exporting countries where the lead is lowered and long-term transportation takes place due to continuous breathing and transpiration during handling, transportation, storage, and sales process, claims due to corruption, The advancement of the technology for extending the life after the end of life is still a very urgent problem. Moreover, considering that the economic loss rate due to corruption during distribution and storage in underdeveloped and developing countries is from 10% to 50%, it is necessary to extend the life span to maintain freshness. However, It can be said that it is not enough.

Prior art to provide freshness of food has been disclosed in Korean Patent Laid-Open Publication No. 2013-0009513 by drying a raw material mixture of zeolite and pegmatite powder or by adding a drying agent to a raw material mixture to produce a breathable packaging film, The present invention proposes a packaging material capable of preventing the occurrence of bubble holes in a packaging material and discharging carbon dioxide and ethylene gas from the sealed packaging material to suppress corruption, odor generation, and overcooking, and to maintain freshness even after storage for a long period of time. Is inserted and discharged into the packaging container of the food, it can be seen that the cited invention and the technical structure are completely different.

Korean Unexamined Patent Application Publication No. 2013-0006343 discloses a fuel cell having a film portion made of a synthetic resin material and having a plurality of pores having a size that allows passage of oxygen or carbon dioxide but does not allow water to pass therethrough and the permeability of oxygen through the pores is 20,000 to 40,000 cc / ㎡ · 24h. However, since the present invention provides a kit that can generate carbon dioxide completely different from the cited invention, it can be seen that the technical composition and technical idea are completely different.

Korean Patent Laid-Open Publication No. 2011-0014440 proposes an egg storage device with dry ice that keeps eggs produced at a poultry farm and maintains freshness during distribution and storage. According to the present invention, it can be judged similar to the present invention by suggesting a method of maintaining the freshness of eggs by dry ice (carbon dioxide). However, in the case of dry ice, it is a solidified gas of carbon dioxide, As a result, when the eggs are left at room temperature for storing eggs, they are sublimated within a few minutes and are sent to the atmosphere as well as providing a temperature of several tens of degrees. Therefore, the probability of the eggs deteriorating is high and the time for maintaining the freshness of the eggs by the carbon dioxide However, since the present invention utilizes a mechanism capable of releasing carbon dioxide over a long period of time by the reaction of carbonate and acid, the technology is not only completely different, but also the technology is much more advanced.

Korean Unexamined Patent Application Publication No. 2007-0008148 discloses a catalyst for maintaining freshness and a manufacturing method thereof. In the present invention, noble metal and transition metal are supported on a solid powder in which refractory inorganic oxide is mixed with titania, alumina and In ₂ O ₃ The catalysts that have been dried and calcined between 300 and 600 ° C can provide freshness of food to a certain level. However, at room temperature, catalysts capable of completely oxidizing ethylene gas at room temperature to convert it to carbon dioxide and water have been developed worldwide There is a problem in that even if there is a catalyst for maintaining the freshness of the food, there is a problem that the economical efficiency is low because it is difficult to apply to a food field which is generally inexpensive because the manufacturing process is difficult and the effective amount of the catalyst is high. The company has been using salt that is combined with carbon dioxide, which is the main cause of global warming. It is not only sufficient price competitiveness but also it is much more advanced than the cited invention because it is possible to manufacture a kit for emitting carbon dioxide by a simple method.

Korean Unexamined Patent Application Publication No. 2005-0048567 discloses a method for preventing premature seasoning of a seasoning steaming season, including the generation of peroxidized lipids which are harmful to the human body by being oxidized in the package during the distribution period, The present invention proposes a seasoning-free inert gas-filled packaging method in which seasoning steaming can be safely circulated for a long time by filling a purified and dried inert gas instead of air. It can be judged that the present invention is similar to the present invention due to the inert gas filling of carbon dioxide. However, in the present invention, it is almost the same as the confectionery package sold in the supermarket, which is simply inflated by the nitrogen filled in the confectionery package In order to prevent the contents of the wrapper from being damaged by external pressure and to prevent oxidation, a gas bomb is required for filling the carbon dioxide as in the present invention, and the gas of the carbon dioxide In order to prevent the loss, a packing device is required. However, in this embodiment, a small kit that can be inserted into the wrapping paper is used. Carbonate and acid are formed so that carbon dioxide can be released. I can do it. This is a great course ionizing device advancement of technology, as well as two completely different technical configuration of the cited invention has the advantage that, depending on the need can be provided without the atmosphere of carbon dioxide can be determined much higher.

U.S. Patent No. 4,764,385 proposes a process for preserving fresh fruits and vegetables. The present invention relates to a process for heating fruits and vegetables uniformly by a microwave heating method; Cooling the enzyme to an inactivation temperature; Sealing the cooled fruit or vegetable in the cooling process in a container containing an inert gas; While the freshness of fruits and vegetables can be maintained by the packaging process above food storage to prevent the generation of degenerative gases without damaging the fruits or vegetables and to provide sterilization power, we can use carbon dioxide as a small kit And the freshness of the food is maintained by the released carbon dioxide. Therefore, it can be understood that the technical composition and the technical idea are totally different.

US Patent No. 3946118 proposes a process for maintaining the freshness of fruits, vegetables and cereals by calcium peroxide. In the present invention, the freshness of food is maintained by calcium peroxide combined with chemically unstable generator oxygen such as sodium percarbonate (trade name: Oxycrein) which is widely used as a laundry detergent in the domestic market, and is completely different from the technical composition of the present invention .

In addition, various packaging methods have been proposed to maintain the freshness of the food by the injection of carbon dioxide, but most systems require a relatively large system size and only one filling is possible.

Conventional methods for maintaining long-term freshness of foods that have been studied and developed so far can be confirmed that the present invention is completely different from the invention of the present invention in terms of technical composition and technological idea, and that the inventive step is greatly reduced. Especially, And a large amount of equipment that can fill carbon dioxide in the inside of the packaging container is necessary. Therefore, there is a problem that the competitiveness of the agricultural and livestock industry can be greatly reduced. Therefore, a kit (Kit ).

As disclosed in the background art, the present inventors have found that the methods for maintaining the freshness of the food for a long period of time can be classified into a method of using functional packaging materials, an inert gas filling method, a method of maintaining freshness by an oxidizing catalyst, Maintenance methods are being studied and developed.

As described above, the methods for maintaining the freshness of the foodstuffs so far studied and developed are generally inferior in economic efficiency, and the possibility of commercialization for maintaining freshness may be poor. In this case, the gas filling method is applied to the food wrapping paper There is a problem that huge gas filling equipment necessary for gas filling must be mobilized, and the probability that most of conventional methods are able to maintain freshness is still low.

Accordingly, in order to overcome the problems of the conventional methods for maintaining freshness of food, it is necessary to make two or more independent spaces as an integral type or a separate type inside the housing container of the genuine empty kit, and to independently maintain the freshness of the food (NH ₄ ) ₂ CO (CO ₂ ), which is a starting material of carbon dioxide, is composed of a partition wall which can be easily broken by external means so that the carbonate and the acid which are constituted can be easily mixed to generate carbon dioxide (carbon dioxide) ₃ ) or ammonium bicarbonate (NH ₄ HCO ₃ ) is used to remove the ammonia odor generated as a by-product, a cation exchange resin or an acid for removing ammonia odor is additionally formed. ₂ ) can be injected into the storage container of the food by the kit, The present invention has an object to provide a kit that can maintain the freshness of food by inhibiting respiration of food by an increase in the concentration of water.

It is another object of the present invention to provide a kit that can vary in size depending on the type of food or the size of a storage container when the kit is used, and can adjust the release amount of carbon dioxide and the insect repellent period as necessary.

The present invention relates to a kit capable of injecting carbon dioxide (CO ₂ ) into a packaging container of a food to provide freshness of fruits, vegetables, fish and meat in the packaging container for a long period of time. A kit for injecting carbon dioxide (CO ₂ ) into a food container for providing a freshness of fruits, vegetables, fish and meat stored in the container for a long period of time is provided inside the kit housing from external means The partition wall 30 has a partition wall 30 that is easily broken and has a structure in which a carbonate 20 is stored on one side of the partition wall and an acid 40 is filled on the other side and a partition is provided at both ends. The carbon dioxide gas 70 is generated in the environment where the carbonate 20 and the acid 40 are mixed with each other to be used for maintaining the freshness of the food, It characterized the agent (Kit).

The partition of both ends of the food packaging container kit provided herein may be selected from a clogging partition 60 or an open partition 50 and a carbonate containing an ammonia component may be used in the kit housing 10 The cation exchange resin 80 may be added to remove the ammonia odor generated as a by-product.

The food packaging container kit housing provided herein may be provided with glass, ceramics, metal, paper, fabric, and polymer, and the carbonate used in the food packaging container kit of the present invention may be lithium carbonate Lithium carbonate, Lithium bicarbonate, Sodium carbonate, Sodium bicarbonate, Potassium carbonate, Potassium bicarbonate, Calcium carbonate, Calcium bicarbonate Magnesium carbonate, Magnesium bicarbonate, Strontium carbonate, Strontium bicarbonate, Ammonium carbonate, Ammonium bicarbonate, Sodium percarbonate, At least one of potassium percarbonate, calcium percarbonate, and magnesium percarbonate may be selected and used. (Acid 40) is a mixture of sulfuric acid (H ₂ SO ₄ ), HCl, HNO ₃ , H ₃ PO ₄ , Acetic acid, Lactic acid, Tartaric acid, Maleic acid, Citric acid, Succini acid, Surfamic acid, Formic acid, Oxalic acid, Oxalacetic acid, Fumaric acid, Fumaric acid, malic acid, butyric acid, palmitic acid, tartaric acid, ascorbic acid, uric acid, sulfinic acid, At least one of isocitric acid, lauric acid, oleic acid, linoleic acid, and myristic acid may be selected and used.

In addition, the ion exchange resin used in the food packing container kit of the present invention can adsorb and remove only the odor of ammonia by using a cation exchange resin represented by R-SO3H or R-COOH when R represents the base polymer matrix portion Can be applied.

As shown in FIGS. 1 to 3, in the kit for a food packaging container, which is applied to the technical idea of the present application, the kit for injecting carbon dioxide is provided with a hole 60 of the kit housing 10 in one direction and a clogging- The other openings are formed in an open partition 50 structure or both sides of the kit housing 10 are formed to have an open partition 50 structure and the carbonate 20 and the acid 40 (20) is made up of two or more independent spaces in an integral or separate form in the container of the empty kit housing (10) so as to be filled respectively, and the carbonates (20) constituted independently of carbon dioxide for maintaining the freshness of food, And a partition wall 30 which can be easily broken from external means so that carbon dioxide (CO 2) 70 can be easily generated by mixing carbon dioxide (CO 2) and acid (CO 2) In the case of using ammonium carbonate ((NH ₄ ) ₂ CO ₃ , 100) or ammonium bicarbonate (NH ₄ HCO ₃ , 90) among the foot substances, the cation exchange resin 80 or ammonia odor (CO ₂ , 70) can be supplied to the inside of the packaging container of the food which is further constituted by the acid (Acid).

As described above, the conventional method for maintaining the freshness of food requires a lot of expenses for maintaining the freshness of the food for a long period of time and requires a huge equipment capable of filling carbon dioxide in the packaging container, The carbon dioxide injection kit for maintaining the freshness of the food of the present invention for a long time maintains the freshness of the food for a long time at a very low price without being greatly affected by the type of food or the size of the packaging container. It has a great advantage in providing freshness and richness to our food culture as well as contributing greatly to price and technology competitiveness in fields engaged in agriculture, industry and fisheries.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of an integrated kit for maintaining food freshness by carbon dioxide according to the present invention (FIG. 1A: kit before releasing carbon dioxide, FIG. 1B: kit for releasing carbon dioxide)
FIG. 2 and FIG. 3 are diagrams showing an example of an integrated type having a built-in cation exchange resin or an acid for removing ammonia odor to remove ammonia gas generated when the ammonium carbonate-based compound of the present invention is used alone or in combination with an acid A schematic view of the kit (FIG. 2A: a kit before releasing carbon dioxide, and FIG. 2B: a kit when releasing carbon dioxide)
FIG. 4 is a schematic view of a detachable kit for maintaining freshness of food by carbon dioxide according to the present invention (FIG. 4a: kit before release of carbon dioxide by separately charging acid and carbonate in detachable kit, FIG. 4b: A kit in which a separate type kit in which carbonate and carbonate are independently packed is integrally formed and a partition wall is broken and an acid and a carbonate are mixed to release carbon dioxide)
Description of the symbols in the drawings **********
10: Kit housing 20: Carbonate
30: Bulkhead 40: Acid
50: Open type partition 60: Clogged type partition
70: Carbon dioxide (CO ₂ ) 80: Cation exchange resin or ammonia Deodorizing acid (Acid) 90: Ammonium bicarbonate
100: Ammonium carbonate

Hereinafter, the technical idea of the present invention will be described in detail with reference to the drawings.

The kit may have a size, a shape, an integral type or a separation type so long as the carbonate 20 and the acid 40 filled in the kit housing 10 can be safely filled independently and safely until the carbon dioxide is released. It is not subject to any significant restriction and may vary depending on the type of food contained in the food container, the size of the container, and the type of carbonate (20) and acid (Acid, 40). The kit housing 10 may be made of glass, ceramics, metal, paper, fabric, or polymer. In order to release the carbon dioxide by the kit of the present invention, the partition 30 formed in the kit housing 10, It is preferable that it is made of a material which is not hard as much as possible in order to break it by an external means. When a rigid material such as glass, ceramics and metal is used as the material of the kit, there is a possibility that the human body may be damaged by an external impact or that the price is high. This is because the probability that the partition wall 30 is broken by external external pressure The carbonate 20 and the acid 40 due to breakage of the partition wall 30 may be mixed by shaking the kit housing 10 up and down in order to break the kit for mixing the carbonate 20 and the acid 40 If a flexible material such as a polymer is used as a material for the kit housing 10, it is preferable to use a polymer or a tributary as possible because the partition 30 may be easily damaged from external pressure. At this time, the kit housing 10 made of a polymer material is made of a polyethylene resin (PE), a polypropylene resin (PP), a polyphenylene sulfide resin (PPS), a polyethylene terephthalate resin (PET), a polystyrene resin A polymer selected from nylon resin (PA), acrylic resin, vinyl chloride resin, celluloid resin, urea resin, melamine resin, silicone resin, epoxy resin and urethane resin is used.

As the carbon dioxide providing material, a material composed of an alkali metal, an alkaline earth metal or an ammonia carbonate may be used. In the case of alkali metal carbonates, lithium carbonate, lithium bicarbonate, sodium carbonate, sodium bicarbonate, potassium carbonate, potassium bicarbonate, sodium bicarbonate, percarbonate and potassium percarbonate may be used. In the case of a carbonate of an alkaline earth metal, calcium carbonate, calcium bicarbonate, magnesium carbonate (magnesium carbonate), calcium carbonate at least one alkaline earth metal selected from the group consisting of carbonate, magnesium bicarbonate, strontium carbonate, strontium bicarbonate, calcium percarbonate and magnesium percarbonate. Carbonates may be used, and in the case of ammonia carbonate, ammonium carbonate or ammonium bicarbonate nium bicarbonate) may be used.

An acid for generating carbon dioxide by supplying an acid to the carbonate or an acid filled for removing ammonia odor in the kit housing 10 may be an inorganic acid or an organic acid acid and may be used in the field of maintaining the freshness of the acid food constituted in the present invention. Therefore, it is preferable to use an acid which is harmless to the human body. Organic acids can be used without any particular limitation as they are mostly present in the solid phase of the powder, but in the case of inorganic acids, most of them are present in a liquid phase, so care should be taken in the constitution of the present invention. For example, when a liquid inorganic acid is supplied to a carbonate to provide carbon dioxide gas, carbon dioxide gas is discharged in a short time due to a rapid reaction, and it is difficult to maintain the freshness of the food for a long period of time. , And is preferably brought into contact with the carbonate. The inorganic acid may be at least one inorganic acid selected from sulfuric acid (H ₂ SO ₄ ), hydrochloric acid (HCl), nitric acid (HNO ₃ ) and phosphoric acid (H ₃ PO ₄ ) Lactic acid, Tartaric acid, Maleic acid, Citric acid, Succini acid, Surfamic acid, Formic acid, Oxalic acid, But are not limited to, oxalacetic acid, fumaric acid, malic acid, butyric acid, palmitic acid, tartaric acid, ascorbic acid, uric acid ), Sulphonic acid, isocitric acid, lauric acid, oleic acid, linoleic acid, and myristic acid. Organic acids can be used.

Carbonic acid gas is generated by the following reaction formula when the carbonate 20 and the acid 40, which are independently present in the kit housing 10, break and mix the partition 30.

The reaction between inorganic acid and carbonate is shown in Reaction 1.

The reaction between the organic acid and the carbonate is shown in the reaction formula 2.

When ammonium carbonate or ammonium bicarbonate is used in the carbonate to maintain the freshness of the food by filling the inside of the container with carbon dioxide, since they are compounds composed of ammonia, even if there is no chemical reaction, ammonia odor occurs at room temperature, And may be somewhat harmful to the human body in some cases. Therefore, it is preferable to remove the possible ammonia odor in order to maintain the freshness of the food by injecting carbon dioxide into the food container of the present invention. Therefore, when ammonia-based compounds are used as a substance for providing carbon dioxide in order to maintain the freshness of food, the smell of ammonia may not be generated by the reaction as shown in the reaction formula 3. The theoretical background will be described as follows.

When ammonium carbonate-based compounds are present in the kit housing 10 of the present invention as a source of carbon dioxide, they dissociate into ammonia and carbon dioxide at room temperature without any chemical reaction. At this time, the carbon dioxide is discharged out of the kit housing 10 and is provided to maintain the freshness of the food. The ammonia moves from the kit housing 10 to the ammonia odor removing acid located at the end of the kit housing 10 , 80), salts of ammonium sulfate having a high boiling point are generated, and the odor of ammonia can be removed.

The cation exchange resin has the purpose of removing ammonia gas generated when an ammonium carbonate-based compound is used in the kit housing 10. The cation exchange resin absorbs ammonia ions, which are positive ions by a cation exchange resin, And carbon dioxide, which is an anion, is discharged out of the kit housing 10, so that the freshness of the food by the carbon dioxide can be maintained in accordance with the technical idea of the present invention. In this case, when a substance is brought into contact with an aqueous solution of a salt, the ions in the substance come out into the solution and the ions in the solution enter into the substance. That is, various ions in the solution and the insoluble resin Resin) is used as a reversible exchange ion exchanger of ions having the same positive or negative charge. In the cation exchange resin used in the present invention, most of the water retains its state of moisture Since ammonia (NH ₃ ) gas dissociated from ammonium carbonate is adsorbed on the water existing in the cation exchange resin and exists in the ionic state of NH ₄ ⁺ , a sulfonic acid group (-SO as ₃ H) and carboxyl group (-COOH) exchanging cations of the NH ₄ ⁺ exchanged by the resin having a structure, such as ammonia clearance It can be removed. If the base polymer matrix of the ion exchange resin is represented by R, it can be expressed as R-SO ₃ H or R-COOH as a cation exchange resin, and ionized in water as follows.

_{R-SO 3 H → R-} SO 3 - + H +

R-COOH ^- & gt ^; R - COO ^- + H ⁺

Accordingly, in the present invention, in order to maintain the freshness of the food using the ammonium carbonate-based compound, the ammonia gas is ion-exchanged by the cation exchange resin to provide carbon dioxide while removing the ammonia odor.

Hereinafter, embodiments to which the technical idea of the present invention is applied will be described, but it is needless to say that the technical idea of the present invention is not limited to the embodiments.

In order to check the freshness of the food by the injection of carbon dioxide into the inside of the packaging container, calcium carbonate and sulfuric acid of Samseonjeon were purchased as the carbon dioxide generating material and the providing material, and a 30 cm × 30 cm × 30 cm sized fruit storage container was prepared To prepare the carbon dioxide generation kit, a 1.5 liter PET container discarded was cut to a height of 10 cm from the lower end. Inside the cut PET container, calcium carbonate packed with fabric was placed, and an acid solution was placed on the sponge so that a 1/10 diluted sulfuric acid solution was sufficiently contained in the sponge, and a continuous carbon dioxide atmosphere was provided Sulfuric acid solution was supplied to the sponge every 5 hours in an amount of 5 ml. I immediately installed a carbon dioxide supply kit in a fruit storage container, put a piece of raw blue banana in a bowl of 10 pieces, and then changed the color of the banana from blue to yellow as the end of the freshness of the banana.

In order to check the freshness of the food by the injection of carbon dioxide into the inside of the packaging container, sodium carbonate and citric acid as the carbon dioxide generating substance and the providing substance were purchased and the fruit storage container of size 30 cm × 30 cm × 30 cm And a 1.5-liter PET container discarded was cut to a height of about 10 cm from the lower end to prepare a carbon dioxide generation kit. After the sodium carbonate and the citric acid packed in the fabric were packed in the cut PET container, sodium carbonate and citric acid were uniformly mixed. Then, a small amount of water was supplied as the initiator of carbon dioxide, and immediately the carbon dioxide supply kit and the raw- About 1 kg of blue tomato was put into the tomato, and the color of the tomato turns from blue to red.

In order to confirm the freshness of the food by the injection of carbon dioxide into the inside of the packaging container, ammonium bicarbonate and sulfamic acid were purchased as the carbon dioxide generating substance and the providing substance. In order to remove the ammonia odor by the ion exchange method A 30 cm × 30 cm × 30 cm sized fruit storage container was prepared. To prepare a carbon dioxide generation kit, a 1.5 liter PET container discarded was placed in a 10 cm . A PVC tube having an inner diameter of 30 mm and a length of 100 mm was prepared inside the cut PET container, one hole was closed and the other was opened to release carbon dioxide. The interior of the prepared PVC tube was filled with 3 cm high ammonium bicarbonate, followed by 2 cm of sulfomethane, mixed and filled with the final cation exchange resin. This was immediately followed by the addition of a carbon dioxide supply kit to the fruit storage container and about 1 kg of raw green tomatoes. The point at which the color of the drop tomato turns from blue to red is the end of the freshness of the tomato.

In order to confirm the freshness of the food by the injection of carbon dioxide into the inside of the packaging container, ammonium carbonate of citric acid purity and citric acid for removal of ammonia odor were purchased and used as a carbon dioxide generating material, and a 30 cm × 30 cm × 30 cm sized fruit storage A 1.5 liter PET container discarded was cut to a height of 10 cm from the lower end to prepare a carbon dioxide generation kit. A PVC tube having an inner diameter of 30 mm and a length of 100 mm was prepared inside the cut PET container, one hole was closed and the other was opened to release carbon dioxide. The prepared PVC tube was filled with ammonium bicarbonate of about 6 cm in height, filled with cotton, and filled with citric acid to remove the ammonia odor at the top of the PVC tube. It was immediately put into a fruit storage container with a carbon dioxide supply kit and 1 kg of fresh grapes, and the appearance of the grapes was changed to the end of the freshness of the grapes.

The beef was purchased from a butcher and divided into two halves. One half was used as a sample for maintaining meat freshness in Example 5, and the other half was used as a sample for Comparative Example 5. The prepared 1/2 of the beef sample was put into a polyethylene container with a lid, and a kit for releasing carbon dioxide was put in the same manner as in Example 4. The lid was closed and then stored in the refrigerator, and the freshness was confirmed by appearance and taste . To confirm the appearance and taste of the beef, a small amount of the beef was added to the soup every day, and the appearance and taste of the beef were confirmed.

The same procedure as in Example 5 was carried out except that mackerel was selected to confirm the freshness of the fish.

Comparative Example 1

Carbon dioxide generating materials and materials were prepared in the same manner as in Example 1, except that calcium carbonate and sulfuric acid were not used.

Comparative Example 2

Carbon dioxide generating material and Carbon Dioxide were prepared in the same manner as in Example 1, except that sodium carbonate and citric acid were not used.

Comparative Example 3

Carbon dioxide generators were prepared in the same manner as in Example 3, except that ammonium bicarbonate, Surfamic acid, and cation exchange resin of Pure Chemical Co.,

Comparative Example 4

The same procedure as in Example 4 was carried out, except that ammonium carbonate of the pale yellow powder as a carbon dioxide generating material and citric acid for removing ammonia odor were not used.

Comparative Example 5

The same procedure as in Example 5 was carried out except that the carbon dioxide generating kit as in Example 4 was not provided.

Comparative Example 6

The same procedure as in Example 6 was carried out except that the carbon dioxide generating kit as in Example 4 was not provided

The results of Comparative Examples 1 to 6 and Examples 1 to 6 are shown in Table 1.

[Table 1]

As shown in Table 1, foods that did not provide carbon dioxide to maintain the freshness of the food showed a very short freshness, and meat and fish showed that the meat and fish taste was not excellent when the freshness maintenance period passed I could. In the case of unripe fruits such as tomatoes, drop tomatoes and bananas, the color was changed in a short time. It was confirmed that the grape clusters were reduced or the freshness maintenance period in which appearance was deteriorated was shortened. On the other hand, In the case of providing a kit for maintaining the freshness of the food by the injection of carbon dioxide into the food packaging container, it was confirmed that the freshness of the fruit was maintained about twice as much as that of the case of not injecting carbon dioxide. Freshness was maintained for more than 12 days. Especially, it was confirmed that ammonium carbonate compounds can maintain freshness in various food fields while eliminating ammonia odor.

Therefore, the present invention can provide a long-term supply of carbon dioxide for storing food by a small package or maintaining the freshness of the logistics process. It is confirmed that there is a great advantage that freshness can be provided for a long time.

Claims

A kit (kit) for injecting carbon dioxide (CO ₂ ) into a food container to provide freshness of fruit, vegetables, fish, meat stored in the container for a long time,
A partition wall 30 that can be easily broken from an external means is provided inside the kit housing 10 and a carbonate 20 is stored on one side of the partition wall and an acid 40 is filled on the other side. And carbonic acid gas 70 is generated in an environment in which the carbonate 20 and the acid 40 are independently mixed with the partition wall interposed therebetween so as to be utilized for maintaining the freshness of the food Features a Food Packaging Container Kit (Kit).

The method according to claim 1,
Wherein the partition at both ends is selected from the clogging type partition 60 or the open type partition 50 and used.

The method according to claim 1,
Wherein a cation exchange resin (80) is added to remove an ammonia odor generated as a by-product when a carbonate containing an ammonia component is used in the kit housing (10) (Kit).

The method according to claim 1,
Wherein the kit housing comprises glass, ceramics, metal, paper, fabric, and polymer.

The method according to claim 1,
The carbonate may be selected from the group consisting of lithium carbonate, lithium bicarbonate, sodium carbonate, sodium bicarbonate, potassium carbonate, potassium bicarbonate, calcium carbonate, Calcium bicarbonate, magnesium carbonate, magnesium bicarbonate, strontium carbonate, strontium bicarbonate, ammonium carbonate, ammonium bicarbonate, Wherein at least one selected from the group consisting of sodium percarbonate, potassium percarbonate, calcium percarbonate and magnesium percarbonate is selected and used. .

The method according to claim 1,
Acid 40 is an acid for removal of ammonia odor and acid 80 is sulfuric acid (H ₂ SO ₄ ), hydrochloric acid (HCl), nitric acid (HNO ₃ ), phosphoric acid (H ₃ PO ₄ ) Lactic acid, Tartaric acid, Maleic acid, Citric acid, Succini acid, Surfamic acid, Formic acid, Oxalic acid, But are not limited to, oxalacetic acid, fumaric acid, malic acid, butyric acid, palmitic acid, tartaric acid, ascorbic acid, uric acid At least one of sulfuric acid, sulfuric acid, isocitric acid, lauric acid, oleic acid, linoleic acid, and myristic acid is selected Wherein the food packaging container is used as a food packaging container.

The method of claim 3,
Wherein the ion exchange resin is applied so as to adsorb and remove only ammonia odor using a cation exchange resin represented by R-SO3H or R-COOH when R represents a basic polymer matrix portion Kit).