JP2009222287A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent oxidative deterioration of nutrient components in foods stored in an evacuated storage chamber over a long period of time while preventing an increase in the food storage space and reducing the cost. <P>SOLUTION: In this refrigerator, an antioxidant component releasing cassette 80 encapsulating an oxidation inhibitor is disposed in a storage chamber formed inside the refrigerator. This antioxidant component releasing cassette 80 is disposed inside the evacuated storage chamber 24 sealed when storing foods and reduced in pressure to lower than the atmospheric pressure. An oxidation inhibitor in which the antioxidant component is not released under the atmospheric pressure and which is released under pressure lower than the atmospheric pressure is used as the oxidation inhibitor. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a refrigerator, and is particularly suitable for a refrigerator that prevents oxidative deterioration of nutritional components in food stored in a storage room.

  As this type of conventional refrigerator, there is one described in Japanese Patent Application Laid-Open No. 2007-64620 (Patent Document 1). In this refrigerator, an antioxidant release unit containing an antioxidant that volatilizes under an atmospheric pressure group is disposed in a storage room opened in a space where cold air in the refrigerator is circulated, and an antioxidant component of this antioxidant Is intended to prevent the nutritional components in the food from being oxidized and decomposed and reduced in combination with oxygen in the air by covering the food such as vegetables in the storage chamber.

  Another conventional refrigerator is described in Japanese Patent No. 4015687 (Patent Document 2). This refrigerator is provided with a low-pressure chamber that is hermetically sealed at the time of storage of food and has a low pressure of 0.7 atm. By reducing the pressure in the low-pressure chamber to 0.7 atm in this way, the oxygen concentration in the low-pressure chamber can be lowered, whereby the nutritional components in the food stored in the low-pressure chamber are combined with oxygen in the air. It is intended to prevent oxidative deterioration of nutritional components by suppressing the above.

JP 2007-64620 A Japanese Patent No. 4015687

  However, in the refrigerator of Patent Document 1 described above, the food stored in the storage room is stored in a state of high atmospheric pressure and based on atmospheric pressure, so that the oxidative deterioration of nutritional components in the food is effectively prevented. In order to do so, it was necessary to release a large amount of antioxidant components from the antioxidant. Also, in this refrigerator, the antioxidant release unit is installed in a storage room that is open to the space where the cold air in the refrigerator is circulated, so that the oxygen in the entire circulated cold air is linked to the nutritional components in the food. In this respect, it was necessary to release a large amount of antioxidant components from the antioxidant. This necessitates an increase in the size of the antioxidant release unit, leading to a reduction in food storage space and an increase in cost.

  Further, in the refrigerator of Patent Document 2 described above, the oxidative degradation of the nutrient component is prevented only by lowering the pressure in the low pressure chamber. Therefore, in order to effectively prevent the oxidative degradation of the nutrient component, the pressure in the low pressure chamber is set. It was necessary to reduce the pressure to a very low pressure. Therefore, it is necessary to increase the size of the decompression device and increase the pressure resistance of the casing constituting the low pressure chamber, leading to a decrease in food storage space and an increase in cost.

  The objective of this invention is providing the refrigerator which can prevent the oxidative degradation of the nutrient in the foodstuff accommodated in the decompression storage chamber over a long period, aiming at the increase in food storage space and cost reduction.

  The first aspect of the present invention for achieving the above-described object is that, in a refrigerator in which an antioxidant component release cassette containing an antioxidant is disposed in a storage chamber formed in the refrigerator, atmospheric pressure is used as the antioxidant. Use an antioxidant that does not release the antioxidant component under the state of the group and releases the antioxidant component under the state of the pressure lower than the atmospheric pressure, and is sealed when the food is stored and depressurized to a pressure lower than the atmospheric pressure. The anti-oxidant component release cassette is disposed inside the reduced-pressure storage chamber.

A more preferable specific configuration example in the first aspect of the present invention is as follows.
(1) An antioxidant contained in a natural food containing any nutritional component of vitamin C, vitamin E, and enzyme-treated rutin as the antioxidant.
(2) In said (1), ascorbic acid or tocophenol was used as said antioxidant.
(3) In the above (2), the decompression storage chamber is disposed inside the refrigeration chamber so that 0.001 g or more of the antioxidant component per liter of the volume of the decompression storage chamber is released from the antioxidant component release cassette. And setting the decompression pressure of the decompression storage chamber and the discharge resistance of the cassette.
(4) In said (3), the pressure at the time of pressure reduction of the said pressure reduction storage chamber was set to 0.80-0.95 atmosphere.
(5) The antioxidant component release cassette includes the antioxidant, a resin container containing the antioxidant, and paper for guiding and releasing the antioxidant component inside the resin container to the outside. thing.
(6) In the above (5), the resin container is composed of a resin container main body in which an aluminum film is adhered and an antioxidant is accommodated, and a resin container lid in which an aluminum film is adhered on the inner side, The peripheral edge of the resin container body and the peripheral edge of the resin container lid are overlapped with part of the paper interposed therebetween to join the aluminum films of both peripheral edges, and the space surrounded by the aluminum film And releasing the antioxidant component only through the portion of the paper sandwiched between the two aluminum films.
(7) In the above (6), the resin container lid forms a recess over the entire length on the surface of the resin container main body, and the paper is disposed over the entire length in the recess of the resin container lid, Facing the outside of the resin container.

  Moreover, the 2nd aspect of this invention is arrange | positioned in the inside of the pressure-reduction storage chamber which is sealed at the time of storage of a foodstuff, and is pressure-reduced to a pressure state lower than atmospheric pressure in the antioxidant component release cassette which included the antioxidant. In addition, an antioxidant that does not release an antioxidant component under an atmospheric pressure group and releases an antioxidant component under a pressure state lower than atmospheric pressure is used as the antioxidant.

A more preferable specific configuration example in the second aspect of the present invention is as follows.
(1) It is provided with the said antioxidant, the resin container which accommodated this antioxidant, and the paper which introduce | transduces and discharge | releases the antioxidant component inside this resin container to the exterior,
The resin container includes a resin container main body in which an aluminum film is attached and the antioxidant is stored, and a resin container lid in which an aluminum film is attached on the inner side, and a peripheral portion of the resin container main body and the resin The peripheral edge of the container lid is overlapped with a part of the paper with the paper interposed therebetween, and the aluminum films on both peripheral edges are joined together to form a space surrounded by the aluminum film and sandwiched between the aluminum films. Releasing the antioxidant component only through the portion of the paper that has been made.

  According to the refrigerator of the present invention, the antioxidant component release cassette can be downsized, the decompression device can be downsized, the strength of the housing of the decompression storage chamber can be reduced, and the food storage space can be increased and the cost can be reduced. Oxidative deterioration of nutrients in food stored in the room can be prevented over a long period of time.

  Hereinafter, the refrigerator of one Embodiment of this invention is demonstrated using figures.

  First, the configuration of the refrigerator will be described with reference to FIGS. 1 and 2. FIG. 1 is a central longitudinal cross-sectional view of the refrigerator of the present embodiment, and FIG. 2 is a cross-sectional perspective view of the lowermost space portion of the refrigerator compartment of FIG.

  The refrigerator includes a refrigerator body 1 and doors 6 to 9. The refrigerator body 1 includes a urethane foam heat insulating material 13 and a vacuum heat insulating material (not shown) between a steel plate outer box 11 and a resin inner box 12. A plurality of storage rooms are provided in the order of the rooms 3 and 4 and the vegetable room 5. In other words, the refrigerator compartment 2 is arranged at the uppermost stage, and the vegetable compartment 5 is arranged at the lowermost stage, and between the refrigerator compartment 2 and the vegetable compartment 5, the two rooms are insulated from each other. Partitioned freezer compartments 3 and 4 are provided. The refrigerator compartment 2 and the vegetable compartment 5 are storage compartments in a refrigerated temperature zone, and the freezer compartments 3 and 4 are storage compartments in a freezing temperature zone of 0 ° C. or less (for example, a temperature zone of about −20 ° C. to −18 ° C.). is there. These storage chambers 2 to 5 are partitioned by partition walls 33, 34, and 35.

  On the front surface of the refrigerator body 1, doors 6 to 9 that close the front opening portions of the storage chambers 2 to 5 are provided. The refrigerator compartment door 6 closes the front opening of the refrigerator compartment 2, the freezer compartment door 7 closes the front opening of the freezer compartment 3, and the freezer compartment door 8 closes the front opening of the freezer compartment 4. The vegetable compartment door 9 is a door that closes the front opening of the vegetable compartment 5. The refrigerator compartment door 6 is constituted by a double door with double doors, and the freezer compartment door 7, the freezer compartment door 8, and the vegetable compartment door 9 are constituted by drawer type doors, and a container in the storage compartment is pulled out together with the drawer door.

  The refrigerator body 1 is provided with a refrigeration cycle. This refrigeration cycle is configured by connecting a compressor 14, a condenser (not shown), a capillary tube (not shown) and an evaporator 15, and again the compressor 14 in this order. The compressor 14 and the condenser are installed in a machine room provided at the lower back of the refrigerator body 1. The evaporator 15 is installed in a cooler room provided behind the freezing rooms 3 and 4, and a blower fan 16 is installed above the evaporator 15 in the cooler room.

  The cold air cooled by the evaporator 15 is sent to the storage rooms of the refrigerator compartment 2, the freezer compartments 3, 4 and the vegetable compartment 5 by the blower fan 16. Specifically, a part of the cool air sent by the blower fan 16 is sent to a storage room in the refrigerator temperature zone of the refrigerator room 2 and the vegetable room 5 through a damper device that can be opened and closed, and the other part. Are sent to the freezer compartments 3 and 4 in the freezing temperature zone.

  The cool air sent to the storage rooms of the refrigerator compartment 2, the freezer compartments 3, 4 and the vegetable compartment 5 by the blower fan 16 is returned to the cooler compartment through the cool air return passage after cooling each storage compartment. Thus, the refrigerator of this embodiment has a cold air circulation structure, and maintains each of the storage chambers 2 to 5 at an appropriate temperature.

  A plurality of shelves 17 to 20 made of a transparent resin plate are detachably installed in the refrigerator compartment 2. The lowermost shelf 20 is installed in contact with the back surface and both side surfaces of the inner box 12, and divides the lowermost space 21, which is the lower space, from the upper space. Further, a plurality of door pockets 25 to 27 are installed inside each refrigerator compartment door 6, and these door pockets 25 to 27 protrude into the refrigerator compartment 2 with the refrigerator compartment door 6 closed. Is provided. A back panel 30 that forms a passage through which the cool air supplied from the blower fan 16 passes is provided on the back of the refrigerator compartment 2.

  In the lowermost space 21, in order from the left, an ice making water tank 22 for supplying ice making water to the ice tray in the freezing room 3, a storage case 23 for storing food such as dessert, and the inside of the room are decompressed to store food. A reduced-pressure storage chamber 24 is provided for maintaining freshness and for long-term storage. The decompression storage chamber 24 has a width that is narrower than the width of the refrigerator compartment 2, and is disposed adjacent to the side surface of the refrigerator compartment 2.

  The ice making water tank 22 and the storage case 23 are disposed behind the left refrigerator compartment door 6. Thereby, the ice making water tank 22 and the storage case 23 can be pulled out only by opening the left refrigerator compartment door 6. The decompression storage chamber 24 is disposed behind the right refrigeration chamber door 6. Thereby, the food tray 60 of the decompression storage chamber 24 can be pulled out only by opening the right refrigerator compartment door 6. The ice-making water tank 22 and the storage case 23 are located behind the lowermost door pocket 27 of the left refrigerator compartment door 6, and the decompression storage chamber 24 is the lowermost door pocket 27 of the right refrigerator compartment door 6. It will be located behind. Here, the cold air cooled by the evaporator 15 and sent to the refrigerator compartment 2 passes through the periphery of the decompression storage chamber 24 to indirectly cool the inside of the decompression storage chamber 24.

  An ice making water pump 28 is installed behind the ice making water tank 22. A negative pressure pump 29, which is an example of a decompression device for decompressing the decompression storage chamber 24, is disposed behind the storage case 23 and in a space behind the decompression storage chamber 24. The negative pressure pump 29 is in contact with a pump connection provided on the side surface of the decompression storage chamber 24 via a conduit.

  The decompression storage chamber 24 includes a box-shaped decompression storage chamber main body 40 having an opening for food access, a decompression storage door 50 for opening and closing the food access opening of the decompression storage body 40, and a decompression for storing food. A food tray 60 that is taken in and out of the storage room door 50 is provided. By closing the food storage opening / closing opening of the decompression storage chamber door 50 with the decompression storage chamber body 40, the space surrounded by the decompression storage chamber body 40 and the decompression storage chamber door 50 is formed as a low pressure space to be decompressed. The food tray 60 is attached to the back side of the decompression storage chamber door 50 and can move back and forth with the movement of the decompression storage chamber door 50.

  Inside the reduced pressure storage chamber 24, an antioxidant component release cassette 80 containing an antioxidant 81 (see FIG. 4) is installed. In other words, an anti-oxidant component release cassette 80 containing an anti-oxidant 81 capable of preventing oxidation loss due to oxygen in the air is installed in the decompression storage chamber 24 for storing fresh foods such as vegetables and meat fish. As shown in FIG. 2, the antioxidant component release cassette 80 is detachably attached to the back wall portion of the food tray 60. As the antioxidant 81, an antioxidant is used in which the antioxidant component is not released under the atmospheric pressure group and the antioxidant component is released under the pressure state lower than the atmospheric pressure. That is, the antioxidant 81 contained in the antioxidant component release cassette 80 depressurizes the inside of the decompression storage chamber 24, thereby reducing the pressure inside the antioxidant component release cassette 80 and the pressure outside the antioxidant component release cassette 80. The antioxidant component is released by the pressure difference.

  By putting food on the food tray 60 and closing the decompression storage chamber door 50, the inside of the decompression storage chamber 24 is sealed, the door switch is turned on, the negative pressure pump 29 is driven, and the decompression storage chamber 24 is at atmospheric pressure. Depressurized to a lower state. Thereby, the oxygen concentration in the store room 13 can fall and deterioration of the nutrient component in a foodstuff can be prevented. In addition, the release of the antioxidant component from the antioxidant 81 is started after the decompression storage chamber 24 is sealed and decompressed, and the antioxidant component is contained in the decompression storage chamber 24 having a limited volume. It is possible to prevent binding between nutritional components in food and oxygen. As a result, it is possible to reduce the size of the antioxidant component release cassette 80, to reduce the size of the negative pressure pump 29, and to reduce the strength of the housing of the reduced pressure storage chamber 24, thereby increasing the food storage space and reducing the cost. It is possible to prevent oxidative deterioration of nutritional components in the food stored in the container for a long period of time.

  Then, by pulling the decompression storage chamber door 50 toward the front, the pressure release valve provided in a part of the decompression storage chamber door 50 is first operated to release the decompression state of the decompression storage chamber 24 to be in the atmospheric pressure state. The decompression storage chamber door 50 can be opened. Thereby, the decompression storage chamber door 50 can be easily opened and food can be taken in and out.

  Next, the antioxidant component release cassette 80 will be described in detail with reference to FIGS. 3 is a single perspective view of the antioxidant component release cassette 80 of FIG. 2, FIG. 4 is an AA cross-sectional view of FIG. 3, and FIG. 5 is a BB cross-sectional view of FIG.

  The antioxidant component release cassette 80 is an antioxidant 81 that releases an antioxidant component, a resin container 82 that contains the antioxidant 81, and an antioxidant component inside the resin container 82 that is guided outside and released. Paper 85 to be configured. The paper 85 is formed of Japanese paper or corroded cloth and has air permeability.

  The antioxidant 81 prevents oxidation of nutritional components in food by oxidizing the nutritional components in food before being oxidized by oxygen in the air. Therefore, an antioxidant consists of a substance which is very easy to oxidize. In this way, the antioxidant 81 is in contact with food, and therefore, in consideration of safety to the human body, an antioxidant contained in natural foods containing nutritional components such as vitamin C, vitamin E and enzyme-treated rutin, for example, ascorbic acid And tocophenol are used.

  The resin container 82 includes a resin container main body 83 having an aluminum film 83a attached inside and containing an antioxidant 81, and a resin container lid 84 having an aluminum film 84a attached inside. The peripheral portion of the resin container body 83 and the peripheral portion of the resin container lid 84 are overlapped, and the aluminum films 83a and 84a of both peripheral portions are joined over the entire periphery except for the portion where the paper 85 is interposed, and the internal space Is a space surrounded by the aluminum films 83a and 84a. Therefore, the antioxidant component is not released to the outside through the aluminum films 83a and 84a from the antioxidant 81 arranged in this space.

  The resin container lid 84 is formed with a recess 84c over the entire length on the surface of the resin container main body by forming a protrusion 84b protruding to the front side. The paper 85 is disposed over the entire length in the recess 84 c of the resin container lid 84, and both end portions face the outside of the resin container 82. As a result, the antioxidant component released from the antioxidant 81 disposed in the resin container 82 is decompressed and stored as an external space of the resin container 82 through only the portion of the paper 85 sandwiched between the aluminum films 83a and 84a. It is discharged into the chamber 24. Therefore, the release rate of the antioxidant component into the decompression storage chamber 24 can be easily adjusted by adjusting the cross-sectional area of the sandwiched portion of the paper 85 (in other words, the thickness or width of the paper 85) and the length of the sandwiched portion. Can be adjusted.

  Next, the effective concentration for preventing the loss of nutritional components in the food of the antioxidant 81 will be described with reference to FIG. FIG. 6 shows the results of measuring the vitamin C content of spinach by an effective concentration test of ascorbic acid, FIG. 7 shows the results of measuring the K value of tuna by the effective concentration test of ascorbic acid, and FIG. 8 shows the effective concentration test of ascorbic acid. It is a figure which shows the color tone measurement result of beef.

  In the effective concentration test of these ascorbic acids, 0.01 g of ascorbic acid was released as an antioxidant component into a 10 L (liter) sealed container, 0.1 g was released, and when it was not released. The Vitamin C content of spinach, the K value that is an indicator of the freshness of tuna, and the color of beef stored in this sealed container were measured immediately after purchase and after storage for 3 days, and compared. Moreover, the code | symbol 91 shown in a figure shows the case where 0.1g of ascorbic acid is released, the code | symbol 92 shows the case where 0.01g of ascorbic acid is released, and the code | symbol 93 shows the case where ascorbic acid is not released.

  In FIG. 6, the vertical axis represents vitamin C content [mg / 100 g], and the horizontal axis represents elapsed time. As a result of the effective concentration test, it can be seen that the vitamin C contents of 91 and 92 which released ascorbic acid were higher than 93 which did not release ascorbic acid, and loss due to oxidation during storage could be prevented.

  In FIG. 7, the vertical axis represents the K value that is an index of freshness, and the horizontal axis represents the elapsed time. As a result of the effective concentration test, it can be seen that the values of K values of 91 and 92 in which ascorbic acid was released were smaller than 93 in which ascorbic acid was not released, and a decrease in freshness could be prevented.

  FIG. 8 is a color tone diagram in which the vertical axis represents light and dark, and the horizontal axis represents saturation, and shows the color tone measurement results after storage for 3 days when the center is immediately after purchase. The closer to the center is closer to the color immediately after purchase, indicating that the freshness is maintained, but as a result of the effective concentration test, 91 and 92 that released ascorbic acid were more central than 93 that did not release ascorbic acid. It turns out that it was possible to prevent a decrease in freshness.

  Therefore, from FIGS. 6, 7 and 8, it was found that the amount of ascorbic acid released is preferably 0.001 g or more per liter of volume.

  Next, the relationship between the release amount of the antioxidant component of the antioxidant 81 and the reduced pressure amount will be described with reference to FIG. FIG. 9 is a diagram showing the measurement result of the relationship between the release amount of the antioxidant component of the antioxidant 81 and the reduced pressure amount.

  The test method for measuring the relationship between the release amount of the antioxidant component of the antioxidant 81 and the reduced pressure amount is to put a cassette 80 containing the antioxidant 81 in a sealed container and suck out the air in the sealed container by a negative pressure pump. Then, the inside of the sealed container was decompressed and kept constant, and the concentration of the antioxidant 81 in the sealed container at that time was measured.

  In FIG. 9, the vertical axis shows the antioxidant concentration, and the horizontal axis shows the elapsed time when 0 minutes is obtained when the pressure is constant. In the figure, reference numeral 94 indicates a case where the inside of the sealed container is maintained at 0.7 atmosphere, reference numeral 95 indicates a case where the inside of the sealed container is maintained at 0.95 atmosphere, and reference numeral 96 indicates a case where the pressure is atmospheric pressure.

  As is clear from FIG. 9, when the inside of the sealed container is at atmospheric pressure 96, since the antioxidant is not volatile, the concentration in the sealed container did not increase, whereas the reduced pressures 94 and 95 were As the concentration of the oxidizing agent increases, it can be seen that the amount of release increased more in 94 in which the inside of the container was kept at 0.7 atm than in 95 kept at 0.95 atm. Therefore, by reducing the pressure, the non-volatile antioxidant 81 can be released into the sealed container. Therefore, the release amount of the antioxidant component of the antioxidant 81 can be controlled by the reduced pressure amount of the sealed container. However, the lower the pressure in the sealed container, the more the pressure-resistant structure of the sealed container needs to be strengthened, so the cost of the sealed container increases. Therefore, the amount of reduced pressure is preferably in the range of 0.80 to 0.95.

It is a center longitudinal cross-sectional view of the refrigerator of one Embodiment of this invention. It is a cross-sectional perspective view of the lowest space part of the refrigerator compartment of FIG. FIG. 3 is a single perspective view of the antioxidant component release cassette of FIG. 2. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is a figure which shows the vitamin C content measurement result of the spinach by the effective concentration test of ascorbic acid. It is a figure which shows the K value measurement result of the tuna by the effective concentration test of ascorbic acid. It is a figure which shows the color tone measurement result of beef in the effective concentration test of ascorbic acid. It is a figure which shows the measurement result of the relationship between the discharge | release amount of the antioxidant component of an antioxidant, and the pressure reduction amount.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Refrigerator main body, 2 ... Cold room, 3 ... Freezer room, 3, 4 ... Freezer room, 5 ... Vegetable room, 6 ... Cold room door, 7, 8 ... Freezer room door, 9 ... Vegetable room door, 11 ... Outside Box, 12 ... Inner box, 13 ... Foam insulation, 14 ... Compressor, 15 ... Evaporator, 16 ... Blower, 17-20 ... Shelf, 21 ... Bottom space, 22 ... Ice making water tank, 23 ... Storage case 24 ... Depressurized storage chamber, 25-27 ... Door pocket, 28 ... Ice making water pump, 29 ... Negative pressure pump, 30 ... Back panel, 34-36 ... Partition wall, 40 ... Low pressure chamber body, 50 ... Low pressure chamber door, 60 ... Food tray, 80 ... Antioxidant release cassette, 81 ... Antioxidant, 82 ... Resin container, 83 ... Resin container body, 83a ... Aluminum film, 84 ... Resin container lid, 84a ... Aluminum film, 85 ... Paper, 91 ... Release 0.1g of ascorbic acid to examine the effective concentration 92: 0.01 g of ascorbic acid was released to examine the effective concentration, 93 ... Ascorbic acid was not released to examine the effective concentration, 94 ... When maintained at 7 atm. 95: When the inside of the container is kept at 0.95 atm to examine the effective decompression amount, 96 ... At the atmospheric pressure at the inside of the container for examining the effective decompression amount.

Claims (10)

In a refrigerator in which an antioxidant component release cassette containing an antioxidant is placed in a storage room formed in the refrigerator,
As the antioxidant, an antioxidant that does not release an antioxidant component in a group under atmospheric pressure and releases an antioxidant component in a group under pressure under atmospheric pressure,
A refrigerator characterized in that the antioxidant component release cassette is disposed inside a decompression storage chamber that is sealed when food is stored and is decompressed to a pressure lower than atmospheric pressure. In claim 1,
A refrigerator characterized by using an antioxidant contained in a natural food containing any nutrient component of vitamin C, vitamin E and enzyme-treated rutin as the antioxidant. In claim 2,
A refrigerator using ascorbic acid or tocophenol as the antioxidant. In claim 3,
The decompression storage chamber is disposed in a refrigerator compartment, and the decompression pressure in the decompression storage chamber is such that 0.001 g or more of the antioxidant component per liter of the decompression storage chamber is released from the antioxidant component release cassette. A refrigerator characterized by setting the discharge resistance of the cassette. In claim 4,
The refrigerator at the time of pressure_reduction | reduced_pressure of the said pressure reduction store room was set to 0.80-0.95 atmosphere. In claim 1,
The antioxidant component release cassette includes the antioxidant, a resin container containing the antioxidant, and a paper that guides and releases the antioxidant component inside the resin container to the outside. Refrigerator. In claim 6,
The resin container includes a resin container main body in which an aluminum film is attached and the antioxidant is stored, and a resin container lid in which an aluminum film is attached on the inner side, and a peripheral portion of the resin container main body and the resin The peripheral edge of the container lid is overlapped with a part of the paper with the paper interposed therebetween, and the aluminum films on both peripheral edges are joined together to form a space surrounded by the aluminum film and sandwiched between the aluminum films. A refrigerator characterized in that the antioxidant component is released only through the paper portion. In claim 7,
The resin container lid is formed with a recess over the entire length on the surface of the resin container main body, the paper is disposed over the entire length within the recess of the resin container lid, and both ends thereof face the outside of the resin container. A refrigerator characterized by. In the antioxidant component release cassette containing the antioxidant,
It is placed inside a vacuum storage chamber that is sealed when food is stored and reduced to a pressure lower than atmospheric pressure.
Antioxidant component release characterized by using an antioxidant that does not release an antioxidant component under an atmospheric pressure group and releases an antioxidant component under a pressure state lower than atmospheric pressure. cassette. In claim 9,
The anti-oxidant and a resin container containing the anti-oxidant, and a paper for guiding and releasing the anti-oxidant component inside the resin container to the outside are configured.
The resin container includes a resin container main body in which an aluminum film is attached and the antioxidant is stored, and a resin container lid in which an aluminum film is attached on the inner side, and a peripheral portion of the resin container main body and the resin The peripheral edge of the container lid is overlapped with a part of the paper with the paper interposed therebetween, and the aluminum films on both peripheral edges are joined together to form a space surrounded by the aluminum film and sandwiched between the aluminum films. Antioxidant component release cassette, wherein the antioxidant component is released only through the paper portion.

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