JP3123913B2 - Food storage equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention is maintaining freshness of the food and other preservation object state, and are not related to damage prevention by anti-corruption and oxidation, related food storage apparatus and to its use
You . The present invention relates to a storage device for foods and the like and a method for using the same, which not only provides convenience to food manufacturers and distributors, but also can be easily and inexpensively obtained and used in ordinary households, so that its application range is expanded. .

[0002]

2. Description of the Related Art Conventional food preserving methods include various chemicals such as ethyl alcohol, sorbic acid, benzoic acid, sodium sulfite, BHA and BHT, in addition to conventional methods such as heating, drying, salting, smoking, cooling and freezing. or by mixing substances in food products, ethyl alcohol or ortho phenylalanine phenol
Direct mixing methods, such as spraying OPP on food surfaces, have been used. In recent years, simple packaging of ethyl alcohol, gas vapor diffused by the combination of ethyl alcohol and various volatile fatty acids or their esters, deoxidized atmosphere using solid oxides such as iron powder, and food packaging resulting from the combination of these elements The use of the atmosphere in the headspace of the body is becoming mainstream.
Both are based on the idea of suppressing the activity of microorganisms such as bacteria and mycelia. That is, Japanese Patent Publication No. 40-2522
8. In Japanese Patent Publication No. 55-2273, the simple substance of Acole is adsorbed on silicon dioxide, starch, talc, cellulose, etc.
Alcohol is separated into small bags and sealed in a food package so that alcohol is easily gasified. In the preservation method using gas vapor, propylene glycol and chondroitin are added as water retention agents to maintain the moisture activity and maintain the taste and texture of foods and to prevent aging in a broad sense because they are soft and effective in preventing aging. It has the advantage that the use of sodium sulfate or the like is unnecessary.

A method of expanding the preservative effect by placing foods in a gas mixture of ethyl alcohol and various organic acids, particularly volatile fatty acids, has been proposed as an advanced formulation of these formulas: Japanese Patent Publication Nos. 50-25531 and 52-27217. 53-28
485, 55-01787, and 58-49157. U.S. Pat. S. Patent N
o. 4,550,026, dated 10-29-1
985 and European Pat. No. EP32
0076Al, dated 06-01-1988. A plurality of methods for obtaining a preservation effect by using a single oxygen scavenger are also described in the published patent publication . In other words,
-11026, 50-04740, 51-3489
8, 53-33665, 55-44594, 60
−30503 and 61-17463.

[0004]

The conventional natural processing method has been used widely with a certain effect. However, there are medical problems such as excessive intake of salt in salt storage and carcinogenicity due to heavy fumigation. Inability to cope with quality changes due to drying and freezing, and the shelf life is not stable. The incorporation of various chemical products is toxicological and teratogenic, and may cause adverse effects on the human body, and may also impair the natural flavor of foods. In the method that changes the atmosphere in the head space of a food package, when ethyl alcohol alone is used, the method lacks sufficient sustained-release properties, and the alcohol gas rapidly filled in the package is vaporized on the food, so the taste is not good. Impair. Immediately upon opening the package is the irritating odor specific to alcohol, which has a negative effect on consumer sensuality. In addition, finely divided silicon dioxide is widely used as an adsorbent for a freshness-retaining agent, and is required to be sealed in a small bag. Powder may contaminate the surroundings and parts of the food production line. In addition, sachets that coexist with food often induce the curiosity of infants and children, leading to ingestion and accidental ingestion, causing respiratory and digestive problems. It may also conflict with the Product Liability (PL) Act, which came into force in 1995 for the benefit of consumers.
Aggregates of fine particles of silicon dioxide having a large surface area are bulky and take up space. Due to the enlarged surface area, the vaporization rate of the gas is increased, and it is not possible to control the vaporization rate delicately in accordance with the characteristics of the food. Therefore, it is used only once and cannot be reused after opening.

In the conventional method using an oxygen scavenger and the method using an oxygen scavenger in combination with an alcohol gas disclosed in JP-A-57-79869, JP-A-57-79870 and JP-A-60-70053. The bulkiness is doubled, and the amount of waste that is thrown away each time cannot be overlooked, leading to environmental pollution. In particular, if the used iron oxide powder or the like is accidentally eaten or ingested, the adverse effect on the human body becomes more serious, and it may be subject to prosecution under the Product Liability Law.
A package using an oxygen scavenger is required to be more robust than necessary. The film materials used for that are
It is necessary to use expensive oxygen barriers with high barrier properties that do not easily generate pinholes or cracks.At the same time, use special oxygen sensing agents that discolor and warn when oxidized to monitor oxygen inflow. It is unavoidable to increase costs. Further, when the oxygen scavenger is automatically charged into the package, if the sachet is broken, the production line is contaminated and a part of the food is lost, but it is the consumer who bears the lost profit, and it is not preferable. Finally, the thermal energy generated when the oxygen scavenger composition contacts the air in the headspace and turns into oxide. Even if the heat generation time is short, the effect of the high temperature of 35 ° C. or more on the food to be stored will not be negligible.

The object of the present invention is to improve and supplement the unresolved parts of the prior art in food preservation as described above .

[0007]

The food storage device according to the present invention according to claim 1 has a three-dimensional shape having an end portion and a side portion having a relatively large area as compared with the end portion.
An adsorbent obtained by adsorbing a volatile food preservation solution, and a coating portion covering a side surface portion of the adsorbent, including a film layer made of a material having poor air permeability, and having a three-dimensional shape. The food preservation device , wherein the end face portion of the formed adsorbent is opened, and the food preservation liquid adsorbed to the adsorbent from the opened end face portion is volatilized with a sustained release property . Outermost part of the food storage device
A predetermined transition metal formed into a metal colloid is
When the food storage device is used, the food
Oxidizing components in the gas space in contact with the storage device
To deoxygenate the gas space .

[0008] The correspondence with the embodiment of the invention to be described later is shown.
And the adsorbent is, for example, a virgin pulp.
Corresponding to the adsorbent body 12 made of a loop material,
The lum layer corresponds to the film 18 having high gas impermeability.
In the example of FIG. 1, the adsorbent (12) has a wafer shape.
And both side surfaces thereof are respectively covered with the coating portions (14, 1).
6, 18) sandwich, the periphery of which is the food
This corresponds to the above-mentioned end face portion for releasing the preservation solution.
Further, in the example of FIG. 2, the adsorbent (12) has a rod shape.
The longitudinal side surface is covered with the coating portion (14, 18).
And both ends of the food preservation solution are gradually released.
Corresponding to the end face portion.

[0009]

[0010]

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
The embodiments of the present invention will be described in detail. Implementation shown in FIG.
In an embodiment, the food storage device according to the present invention comprises a wafer
It has become the over-shaped suction device 10, volatile food preservation solution and including immersion of the food flavor, holding the adsorption of multiple layers of slow release
Apparatus Ru 10 der. The adsorbent (pulp core) 12 of the central layer is a high-grade pulp material having a high adsorptive power, and both surfaces thereof are formed by three layers of films 14, 16, and 18 having different purposes, respectively, to form a total of seven layers.

In the embodiment shown in FIG . 2, a one-layer reinforcing grid-like nonwoven fabric 1 is provided on a pulp adsorbent (pulp core) 12 which has been processed into a rod core instead of the multilayer wafer shown in FIG.
4 and a cylindrical adsorption device 20 on which a single layer of a film 18 having high gas impermeability is mounted, and can serve the same purpose.

[0013] Food Storage solution allowed to slow release in gaseous form from the film surface of the two adsorbers 10 and 20 the peripheral edge and across the cutting surface and specific formula based Dzu-out porosified been uppermost layer of the. Further, a very small amount of the non-precipitated platinum colloid 22 having an ion exchange catalytic function is coated on alumina as a carrier on the uppermost film, and the thin film is dispersed and supported by an ether plating method, so as to be dispersed and supported in the food package. Maintain the headspace in a deoxygenated atmosphere. For additional testing of catalyst function under different conditions and cost comparison, as an application other than food,
The experiment was conducted by treating exhaust gas, especially by installing it on a muffler of a diesel engine. Conventionally, 10 to 15 g of white metal is used, whereas 0.3 g / g of non-precipitated platinum colloid formed into ultrafine particles by vacuum evaporation centrifugation is used.
L including immersion <br/> results allowed the largest zeolite diluted specific surface area, the use amount is stopped below 1 gram, the effect exceeded it or conventional numerical equivalent. The peroxide dissociation function was determined to be about 16,000 times in unit weight. From these test results, the cost of the platinum colloid used in the present food preservation device was proved to be approximately several yen per device, and high economic efficiency was proved.

Hereinafter, the structure of the present invention will be described in detail. The adsorbent 12 in the present invention, a material such as natural virgin pulp or adsorption, nonwoven fabric Do that from such polyolefins subjected to hygroscopic treatment. Adsorbent 12 made of Ueha shaped or pulp material molded into the rod concentrically
Immediately above is a 2.5mm x 2.5mm diameter
The purpose of the nonwoven fabric is a lattice-shaped nonwoven fabric 14 processed to a thickness of 2 mm 2, for the purpose of strengthening the structure by adhering to the adsorbent 12 and resisting strong tooth force when accidentally inserted into the mouth. As the material, one kind can be selected from nylon, polyester, and polyvinyl chloride. Then, these ones pulp adsorbent 12 and the lattice-like nonwoven fabric 14 is integrally formed, for bonding to overlap the sandwich-like from above and below, the film layer was various flavorings including immersion <br/> allowed 16 It is. One type can be selected from vinyl chloride, polyolefin, polystyrene or other materials having high gas permeability. The uppermost layer of the adsorbent is a film 18 that is highly impermeable to gaseous substances that evaporate from the food preservation liquid, and has sufficient strength to make the surface porous or to plate platinum colloid. Materials are used. The purpose of porosity of the film 18 is to time and metering controlled according volatilization of containing immersion has been stored liquid to the apparatus to the characteristics of the food. This is particularly effective when a large amount of the mixed gas needs to be diffused at the beginning of storage. Also serve a function to facilitate the evaporation of containing immersion allowed flavors to the film layer 16. A high transparency is required on the back surface of the film 18 because edible ink or non-toxic ink is used to print and display a trademark, a maker name, a constituent substance, precautions for use, and the like. The material, polyvinylidene chloride, polyvinyl alcohol, polyacrylonitrile, if bonded together. Unstretched polypropylene 30μ resin film or polyethylene 12μ such as polyester
In addition, one type can be selected from film materials having enhanced moisture resistance.

Next, a method for structuring the simplest using the above-mentioned materials will be described in detail. (B) of the adsorbent 12 for containing immersion stock solution at a high concentration two-layer non
The woven fabric 14 is sandwiched like a sandwich to form a bonded nonwoven fabric. (B) The non-woven fabric bonded body, placed between the film 16 of the two layers that have the ability to free immersion of the food flavor, be bonded together. In (c) Finally, 2 of the bonded preserving liquid coalescence, fragrances and impermeable high film 18 against their gas volatilization
By laminating from both sides using a layer , a wafer-like integrated, multilayer laminated body is produced. The standard external shape is a rectangular body having a length of 30 mm, a width of 50 mm, and a thickness of 2 mm (FIG. 1). (D) a cylindrical adsorber 20 (FIG. 2) is immersed equivalent containing the adsorbent described above, the rod core shaped pulp adsorbent 12 having a holding capacity
Obtained by a device integrated multiple layer by fixing by heat fusion method winding across them using two layers of film 18 and the nonwoven fabric 14 that pore formation in order to obtain a breathability in accordance with formula set in advance There is . Standard appearance is 10m in diameter
mx 70 mm long circular cube.

The multilayer structure of the device 10 shown in FIG.
Depending on the properties of the food to be stored, it can be changed from three layers to more than seven layers. Apparatus 20 of FIG.
In it has a structure to greatly simplify the manufacturing process and materials, further abbreviated using the perfume-containing immersion film, vanilla,
In the case of natural or artificial flavors such as ham, freshly baked bread, and matsutake mushrooms, they can be directly mixed into a food preservation solution.

As a main ingredient of the food preservation solution used in the present invention, 99.5% by volume of ethyl alcohol and 99% of glacial acetic acid are preferably mixed and used in a fixed volume ratio. That is, the combination of the two was 0.1 g of glacial acetic acid to ethyl alcohol.
It is desirable to be in the range of 01% to 2%. In addition, select from alcohols such as methyl alcohol and isopropyl alcohol, and volatile organic fatty acids having 2 to 6 carbon atoms from citric acid, succinic acid, tartaric acid, lactic acid, propionic acid, butyric acid, caproic acid, etc. Can be. By using the present invention to hold and gradually release a mixture of these alcohols and edible acid, it is possible to alleviate the unpleasant irritating odor peculiar to alcohol and to suppress the external dissolution of flavors and pigments in foods. Was completed. Next, a synergistic effect more effective in preserving food can be obtained by adding a deoxygenating function to the uppermost film 18 of the apparatus of the present invention.

Deoxygenation function on top film 18
In addition, a thin film of alumina or an ion-exchange resin as a carrier substance is applied on the film 18 , and a white metal or a transition metal of the 3d electron series is coated on the film 18 with a particle diameter of more than 30 mm by vacuum evaporation centrifugation. It is formed into fine particles, placed in an aqueous solution uniformly diluted, and fixed using an ether plating method. In this method, the solid catalyst required to catalyze the reaction oxidizing components contained in the head space of the food package in
In the formation of a wide solid catalyst for effective table area even fine small amounts
A medium thin film was obtained . The rare metals used include platinum, palladium, rhodium, gold, silver, nickel and the like which can be formed into a non-precipitated metal colloid. Zinc, iron and the like can be used depending on the purpose of use, but platinum particles having a high catalytic reaction activity even in a very small amount and exhibiting a long-lived ion exchange catalytic activity with a selective oxidation function are most suitable. Alumina in the form of a thin film is preferable as the supporting substance. In the wafer-like device (FIG. 1), the fixed area of the catalyst substance requires 2 mm × 30 mm only on one surface of the uppermost film. The cylindrical device (FIG. 2) requires 2.4 mm × 25 mm at one end.

The apparatus 10 or 20 having undergone these manufacturing steps
And allowed to including immersion placed immersion漬槽filled with food preservative solution.
Briefly immersed including for a large number of devices in order to perform equally has a large immersion漬槽was prepared the adsorption device 10 or 20 to seal placed in a stainless steel cages. After the tank is evacuated with an air pump so as to make a vacuum state, a preservative solution is injected. This stock solution in process is very short time completely adsorption, residual liquid is collected through a filter layer of removable imparted to the drain pipe provided in the tank bottom is provided in the immersion follows. Finally, the completed food preservation device has the properties of the food to be preserved, i.e. the weight per individual package,
After specifying the water activity value, the necessary amount to be used is determined, and the package is sealed together with the food. Including immersion has been stored liquid to the device over time slow release, diffuse, but increases the internal pressure in the container satisfies the package in a mixed gas, stop the volatilization becomes outside pressure and isobaric. On the other hand, a small amount of platinum colloid attached to the device results in an oxidizing atmosphere component and catalyst react to oxygen in the headspace, to carry out the oxidation prevention of food. When the package is opened for food use and a part of the food is taken out, the internal pressure decreases, but when sealed again, the sustained release of the retentate into the headspace around the remaining food,
Diffusion is continued again and the active site of the long-lived colloidal platinum is not poisoned and its catalysis continues.

The present invention is a food storage device that can be used repeatedly. The objects of food preservation according to the present invention are diverse. To categorize, staple foods: cereals such as rice and wheat and their germs. Cooked rice, mochi,
Raw noodles such as bread, buckwheat, udon, ramen, and processed products such as pizza and pizza dow. Snacks, rice crackers: rice crackers, fried confectionery, karin sugar, potato chips. Western confectionery: pies, muffins, raw cakes, castella, cookies. Japanese sweets: Raw Japanese sweets in general, buns, monaka, imagawa ware, yokan. Agricultural products: soybeans, nuts and other beans, dried persimmons, sweet chestnuts, dried sweet potatoes, miso, soy sauce, coffee, Japanese tea, Kampo tea, various spices, pickles, marmalade. Processed marine products: sea bass, delicacies, semi-dried fish, kunsei, glue, boiled fish, sausage, fried fish, raw and semi-dried kazunoko. Livestock processing products: dried meats such as ham, sausage, salami, beef jerky, milk powder, cheese. Fresh foods: mushrooms such as matsutake, fish meat cuts, and meat cuts. Others: Chemicals, pharmaceuticals, cosmetics, animal feed.

The operation of the present invention according to the above embodiment will be described.
To explain , the periphery or both ends of the integrated multilayer body
(In the wafer-shaped adsorption device 10 shown in FIG.
End face, two end faces of the cylindrical suction device 20 shown in FIG. 2)
As the food preservation solution is slowly released and diffused at a preset rate from the porous film 18 and the uppermost film 18 , the high-concentration preservation solution and its gaseous substances are transferred to the food, impairing the flavor and color of the food, etc. There is no pollution. Fine particles of platinum colloid fixed on the surface of the device (colloidal platinum thin film 22)
There catalyzed reaction <br/> respond to oxidizing components in the gas in the headspace of the food, so to maintain the atmosphere oxygen deficiency is effective in preventing oxidation of food, and having a gas mixture of ethyl alcohol and acetic acid Together with the bactericidal effect, it is effective in suppressing the activity of both aerobic bacteria and anaerobic bacteria, and can provide a good synergistic effect for long-term storage of food. In the manufacturing process, easy thin securing work lamination and a small amount of platinum colloid layer body, there is no peripheral contamination problems for can be processed in a short time also immersed in the preservation solution. There is no fear of the contents being scattered due to breakage of the small bag at the time of putting into a food package, which is likely to occur with other freshness preservatives, thereby contaminating the production line, and the production cost is low. It has a structure and form that minimizes the possibility of accidental ingestion or ingestion by infants and children, and there is no medical adverse effect on the respiratory and digestive organs if taken in any way.

The adsorption rate to the food holding liquid of the present invention is 2.8 times its own weight, indicating that the fine powder of silicon dioxide has 1.17 times.
This is superior to 0.87 times of double and zeolite fine grains and 0.84 times of ink blotting paper. Regarding oxidation ability, polyvinylidene chloride and polyethylene are laminated and
Align was film, four bread bag vertical 300 mm x horizontal 200 mm x thickness 0.04 mm, 12cm respectively
A sample filled with nitrogen gas with x12 cm x 2 cm and a weight of 70 g was compared with a change in oxygen concentration in the container when the device of the present invention was sealed. The former is 5 after 30 days
%, 7.5% on the 60th day, 9% on the 90th day, 12% on the 120th day, whereas the latter increased 1.7% on the 30th day, 60% on the 60th day. The increase was only 2.5% for eyes, 3.2% for 90 days, and 3.9% for 120 days.

Next , a specific example of the device of the present invention will be described. Wafer-shaped device 10 shown in FIG.
As a specific example, a lattice-shaped nylon nonwoven fabric (14) and a natural vanilla flavor are included on both sides of a rectangular multi-layer high-grade pulp ( adsorbent 12) having a width of 50 mm x a length of 30 mm x a thickness of 2 mm. 40 μm of vinyl chloride soaked ( film layer 16),
Then, a 42 μm transparent film (the uppermost film 18) in which non-elongated polypropylene was laminated and bonded to a porous polyethylene printed on the back surface and laminated, was heat-sealed to produce an integral product. The total weight was 0.7 grams. Similarly, a cylindrical device 20 (FIG. 2) consisting of all three layers has a diameter of 1
0mmx length 70mm in multilayer fine pulp molded rod core-like off that pore formation and non-woven fabric (16) to (adsorber 12)
Ilm (18) was wound thermocompression bonding each one layer of. Weight is 0.
7 crumbs.

The two kinds of devices 1 prepared as described above
2mm x 30 on one side of 0 , 20 and one end only
Ammonia (FIG. 1), 2.4 mm × 25 mm (FIG. 2) were coated with alumina to form a carrier. Ultrafine particles of non-precipitated platinum colloid diluted with an aqueous solution were applied to a thin film and fixed by ether plating. 2 types of devices those Ueha form of, was injected food preservation solution mixed with acetic acid in 1% ratio with respect to ethyl alcohol placed the immersion漬槽evacuated evenly 2 g free in 60 seconds It was immersion. Then placed漬槽immersion cylindrical device, with 0.2% by weight of vanilla natural flavors storage solution described above, it was mixed with free immersion allowed twice with 10-fold dilution of 2 grams Was adsorbed. The present invention completed in this way was directly charged into a food package and sealed with the food. The amount used is determined after measuring the total weight and water activity value of the individual foods. The following table shows some examples.

[0025]

[Table 1]

As a more specific example, the case of bread is described below. Prepare one loaf of freshly baked bread, total weight 560 grams, cut into eight pieces, 70 grams per piece,
Each volume was 12 x 12 x 2 (cm).
Film bag made by laminating 4 slices of bread with polyethylene, nylon, and polyvinylidene chloride laminated on each other , 200 mm wide
placed in transparent containers x height 300 mm x thickness 0.04 mm, half of the apparatus, the total weight 1.35 g, stock solutions 1 g containing immersion was charged and heat-sealed openings. In addition, similarly, four slices of bread were sealed in bags of the same quality as a control.
Eight sets of bread groups prepared by this method were prepared at 25 ° C and R
The sample was placed in a constant temperature room maintained at H73%. In the test plot, the state was opened in the order of 30 days, 60 days, 90 days, and 120 days from the start date, and the state was observed. No occurrence of mold, discoloration, or deterioration was observed, and the water activity was 0.96 from the start date. 30 days later.
93, and then gradually decreased to 0.90, 0.89 and 0.87 in that order, but the original flavor and texture of the bread did not change. On the other hand, in the control plot, mold development (+) was observed on the 6th day, worsened to (++) on the 10th day, (++) on the 18th day, gas generation and drying occurred, and some collapsed did. Next, a description will be given of an embodiment in which the evaporation rate of free immersion has been stored liquid to the invention was measured. Half of the amount of the apparatus is turned into a bag of the bread 4 pieces containing, preserving solution containing immersion amount of the total weight 1.35 g was charged 1 gram to 5 pairs of bread filled bag. In addition, prepare 2 grams of silicon dioxide powder,
Since now the stock solution grams saturated was then immersed containing, sealed Similarly bag 5 pairs of bread 4 pieces containing. The vaporization rate of the former within 24 hours was 5% after 8 hours of encapsulation and 8% after 24 hours, whereas the latter showed values of 20% after 8 hours and 43% after 24 hours. In the long run, day 30, 6
20%, 25%, 2
8%, but the latter peaked at 24%, peaking on the first day.
It was reduced to 18% and 7%. In the same manner as above, the peroxide value (POV) was measured using three pairs of bags each containing four pieces of bread. Measurement was performed at room temperature 25 ° C. under fluorescent light for 30, 60, and 90 days.
5m e q / Kg, 19m e q / Kg, 24m e q / Kg
And whereas showed a gradual upward trend, 80m e q / Kg in the control group containing the only bread, 135m e q / K
g, shows the curve of the rapid soaring and 170m e q / Kg. In the control plot, mold development was observed on day 5, and 9
On day 0, the surface of the bread was covered with blue mold, but no mold was observed in the test plot.

According to the present invention having the above-described structure,
Direct contact with food in the food container
Even if it does not change the original ingredients and flavor of the food, once opened
After that, the effect persists and can be used several times. Ma
In addition, measures to avoid accidental ingestion and ingestion by infants and children
Formed, non-toxic and breathable if ingested
Does not adversely affect organs or digestive organs. Manufacturing and packaging input
Is easy to perform, especially in the latter case.
Peripheral contamination caused by damage to the sachet containing the retention agent and oxygen scavenger
Do not live. Even after use by users, conventional iron oxide and
There is no environmental pollution caused by large amounts of waste from silicon.

The present invention is also applicable to the preservation of food as described above.
To improve and complement the unresolved parts of the prior art in
It is. That is, in the present invention, the food preservation solution directly contacts the food,
In order to avoid leaving the residue as a result of contamination,
Works only in the atmosphere of the headspace in the food package
Changes in food ingredients, bad flavor and texture
Contamination and damage caused by dissolution of fragrances, flavors, colorings, etc.
You. From the present invention, a mixed gas that is gradually released at a preset rate is
Filled the headspace, the inside and outside pressure became equal
Stop volatilization at this point, but place a pinhole or crack on the package.
If a pressure drop occurs, the internal gas is stimulated by the resulting pressure difference.
Continue to volatilize again by seeking equal pressure for the lost amount and save
Is it appropriate to control the vaporization rate of the liquid in response to environmental changes?
And control the activity of bacteria for a long time. Book
Platinum with high catalytic ability is used as a metal colloid as part of the invention
And then fix it by ether plating.
As a result of a catalytic reaction with oxidizing components in the headspace,
The atmosphere inside the package can be maintained in a deoxidized state
Was. Effectively suppresses the activity of mycelia and microorganisms,
It kills living pests and their eggs and eats them through oxidation.
In order to prevent deterioration of the product, aging and changes in flavor,
More effective by coexisting the functions of
A synergistic effect was obtained. Conventionally, expensive and difficult to use
Platinum metal black platinum
Leap to specific surface area due to molding to a particle size of 30 mm or less
And easy and inexpensive for production application
Non-precipitated platinum colloid was obtained (Japanese Patent Application No. 1993
No. 3214, US Patent Application 08/351, 764). Small amount
As a result of applying and supporting alumina, the production cost was reduced by iron oxide
It could be kept below the level of application. Added to the present invention
These features may only be disposable once after use.
Of food products
Is not only convenient for manufacturers and distributors, but also
Readily available even in the garden, it is possible to take advantage. The present invention
It has a structure and form that does not induce ingestion or accidental ingestion.
Even medically, because it does not adversely affect the respiratory and digestive organs,
Do not conflict with newly enforced product liability laws. Its structure
Are all molded from non-toxic substances
Is also easy. Conventional preservatives are stored in small bags and
There is no danger of surrounding pollution that is likely to occur when damage occurs. use
The amount of waste afterwards is small and easy to dispose of.
In processing, large quantities such as conventional iron oxide and silicon dioxide
The environment is not polluted by disposal.

[0029]

The present invention exhibits the apparatus with a high adsorption capacity, which allowed free immersion food preservation solution, to control the vaporization rate of the preservation solution by using a multilayer of films having various functions, storage solution for enhanced slow release The constituents of the food are deposited and transferred onto the food without impairing the flavor of the food, and even when pinholes or cracks occur in the food package, the food is stabilized by supplementing with the unique sustained release function of this device. Enabled to save. Small amount and a thin film mounted on the apparatus specially molded platinum colloid, to prevent oxidation of the food birth deoxidation atmosphere by reacting an oxidizing component in the headspace in the package in an ion exchange catalysis. These effects were simultaneously exhibited, and were effective in suppressing the activity of various bacteria such as aerobic and anaerobic, and brought about a favorable synergistic effect for long-term storage of foods. The sustained release effect in gas volatilization and the catalytic oxidative reactivity of long-lived platinum colloids have enabled conventional food preservatives to be used only once, while being disposable once. A new type of preservative. The present invention has a form and structure that prevents accidental ingestion and ingestion by users, especially infants and children, and does not cause medical problems in the respiratory and digestive organs even if taken in any way. The materials required for production are non-toxic, and there is no concern about peripheral contamination such as the scattering of contents during the process and when put into the package. On the consumer side, household waste is easy to dispose of, and there is no environmental pollution caused by massive disposal of iron oxide and silicon dioxide, which has occurred conventionally. The simplicity of handling by the user of the present invention is that conventional food preservatives are difficult to constrain, such as restrictions on the time for which food preservatives are manufactured and used, strict designation of packaging materials, combined use of oxidation sensors, strict prohibition of chewing, prohibition of microwave There were many issues, and it was often used only by producers and distributors, but it became possible to obtain and use it at low cost even in ordinary households.

[Brief description of the drawings]

FIG. 1 is a perspective view and an exploded perspective view of an embodiment of the present invention.

FIG. 2 is a perspective view and an exploded perspective view of another embodiment of the present invention.

[Explanation of symbols]

10 Ueha shaped suction device 12 adsorbent (pulp cores) 14 thin film of lattice-like nonwoven fabric 16 perfume containing immersion film 18 porosified been film 20 cylindrical suction device 22 Platinum colloids

Claims (3)

(57) [Claims] 1. An adsorbent having a three-dimensional shape having an end surface portion and a side surface portion having a relatively larger area than the end surface portion and adsorbing a volatile food preservation liquid, and covering the side surface portion of the adsorbent body A coating portion comprising a film layer made of a material having poor air permeability, and opening the end face portion of the three-dimensionally shaped adsorbent, and the adsorbent is formed from the opened end face portion. the food preservative solution adsorbed in the food storage apparatus, characterized in that to volatilizes remembering sustained release, the outermost predetermined portion of the food storage device, the metal colloid
A predetermined transition metal formed is arranged in the food preservation
When using the device, the gaseous air in contact with the food storage device
The transition metal reacts with the oxidizing component within the
Food storage characterized by deoxygenation during
Device . 2. The adsorbent is in the form of a wafer, and both side surfaces thereof are sandwiched by the coating portions, respectively.
The food storage device according to claim 1, wherein the four end surfaces are the end surface portions for releasing the food preservation solution gradually. 3. The adsorbent has a rod-like shape, and its longitudinal side surface is covered with the coating portion, and two end surfaces thereof are the end surface portions for releasing the food preservative liquid gradually. The food storage device according to claim 1.