WO2022220230A1 - Pallet and foodstuff management method using pallet - Google Patents

Pallet and foodstuff management method using pallet Download PDF

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Publication number
WO2022220230A1
WO2022220230A1 PCT/JP2022/017559 JP2022017559W WO2022220230A1 WO 2022220230 A1 WO2022220230 A1 WO 2022220230A1 JP 2022017559 W JP2022017559 W JP 2022017559W WO 2022220230 A1 WO2022220230 A1 WO 2022220230A1
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WIPO (PCT)
Prior art keywords
pallet
plasma
plasma generator
ozone
high voltage
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PCT/JP2022/017559
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French (fr)
Japanese (ja)
Inventor
眞代 田苗
義人 柳生
Original Assignee
株式会社タベテク
独立行政法人国立高等専門学校機構
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Publication of WO2022220230A1 publication Critical patent/WO2022220230A1/en

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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/015—Preserving by irradiation or electric treatment without heating effect
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
    • B65D19/38—Details or accessories

Definitions

  • the present invention relates to a pallet and a food management method using the pallet, and particularly to a pallet on which food is placed.
  • agents such as ethanol, acetic acid, bactericides such as sodium hypochlorite, and antifungal agents such as orthophenylphenol and thiabendazole are used. is also used, but it is prone to safety problems.
  • Freshness preservation techniques that do not use chemicals include the following.
  • Patent Literature 1 discloses a method for maintaining the freshness of fruits and vegetables by simultaneously or alternately irradiating both red light and far-red light.
  • red light is light in a wavelength range of about 670 nm
  • far-red light is light in a wavelength range of about 735 to 780 nm
  • red light and far-red light are irradiated alternately.
  • Patent Document 2 discloses a method for maintaining the freshness of vegetables and fruits by irradiating them with light. It is said that the freshness is maintained at 0.02 times or more and 0.2 times or less of the illumination intensity of the white light.
  • Patent Document 3 discloses a fruit freshness-keeping device that equalizes the temperature and humidity inside the storage shelf and imparts antibacterial and antifungal properties to cold air to maintain high quality and high freshness for a long period of time. ing.
  • fruits are stored on storage shelves in the storage compartment, and cold air is circulated from a cold air circulation device consisting of a cooler and a fan to cool the inside of the storage compartment, thereby preserving the freshness of the fruits. It is said that
  • Patent Literature 4 discloses a technique for efficiently removing ethylene, which causes ripening and aging of fruits and vegetables, by generating ozone by irradiating ultraviolet rays.
  • This is a device for supplying a freshness-preserving atmosphere to a storage, and includes an ultraviolet irradiation unit that introduces the atmosphere in the storage and applies ultraviolet irradiation treatment to generate the freshness-preserving atmosphere, and a humidification treatment for the ultraviolet irradiation unit. and a humidification processing unit for applying.
  • the humidity of the atmosphere to be subjected to the ultraviolet irradiation treatment rapidly increases. If the wavelength of the ultraviolet rays employed in the ultraviolet irradiation treatment is the wavelength at which ozone is generated, ethylene can be removed efficiently, and the freshness of the fruits and vegetables can be further maintained.
  • Patent Document 5 also discloses a method of exposing fruits and vegetables to a predetermined concentration of gas by using ozone gas for sterilization and pest control.
  • Patent Documents 1 and 2 When light irradiation is performed, as in Patent Documents 1 and 2, the effect of preserving freshness is not sufficient for shadowed areas where light does not reach. Moreover, when using a cooling device such as that disclosed in Patent Document 3, the equipment becomes large-scaled according to the space in which the foodstuffs are stored, and running costs such as equipment costs and power consumption also increase.
  • the method of using ozone as in Patent Documents 4 and 5 has a high sterilization effect, but depending on the space where food is stored, it may be necessary to install multiple facilities such as an ozone generator, or the equipment itself may be difficult. Upsizing is required. In addition, when transporting or temporarily storing foodstuffs, it is necessary to separately incorporate an ozone generator into the truck, container, or temporary storage, resulting in a significant equipment cost.
  • the present invention provides a pallet and a food management method using a pallet that has a high effect of maintaining the freshness of food and can flexibly cope with storage and transportation facilities of various sizes. is to provide
  • the pallet and food management method using the pallet of the present invention have the following features.
  • a pallet on which foodstuffs are placed characterized in that a part of the pallet is equipped with a plasma generator.
  • the plasma generator includes a power supply unit that supplies power, a high voltage generation means that uses part of the supplied power to generate a high voltage, the high voltage It is characterized by having a plasma generating means for generating plasma using a high voltage supplied from the generating means.
  • the pallet described in (2) above is characterized in that the power supply unit comprises either a storage battery or connection means to an external power supply.
  • the plasma generator is characterized by having blowing means for blowing gas in contact with the plasma generated by the plasma generating means. do.
  • the pallet according to any one of the above (1) to (4) is characterized in that ozone detecting means is provided in a part of the pallet.
  • the plasma generator includes control means for controlling driving of the plasma generator, and between the control means and the external control means It is characterized by having communication means for communication.
  • a method of managing foodstuffs characterized by adjusting the ozone concentration in the space in which the pallet is accommodated, using the plasma generator for the pallet described in (1) to (6) above. be.
  • the plasma generator of the pallet is driven and controlled based on the ozone concentration detected by the ozone sensor and the ozone detection means arranged in the space. characterized by
  • the present invention since a part of the pallet on which foodstuffs are placed is equipped with a plasma generator, there is no need to install a plasma generator for each facility for storing and transporting foodstuffs.
  • a plasma generator for each facility for storing and transporting foodstuffs.
  • the surface of food products can be efficiently subjected to sterilization treatment or the like.
  • the number of pallets to be used also increases, making it possible to efficiently increase the amount of plasma generated.
  • FIG. 2A and 2B illustrate the pallet of FIG. 1;
  • FIG. 2B is a cross-sectional view taken along line AA in the top view; and
  • FIG. 4C is a cross-sectional view taken along line BB in the top view.
  • FIG. 2 is a bottom view illustrating the pallet of FIG. 1;
  • 4 is an enlarged view of a portion of FIG. 3;
  • FIG. It is a figure which shows an example of the plasma generation means which can be used for the pallet of this invention.
  • FIG. 4 is a diagram showing another embodiment of a plasma generator that can be used with the pallet of the present invention; It is a figure explaining the management method of foodstuffs using the pallet of this invention.
  • FIG. 1 is an external perspective view showing an example of a pallet.
  • 2 is (a) a top view of the pallet of FIG. 1, (b) a cross-sectional view taken along line AA in the top view, and (c) a cross-sectional view taken along line BB in the top view.
  • 3 is a bottom view illustrating the pallet of FIG. 1, and FIG. 4 is an enlarged view of a part of FIG.
  • a pallet means a carrier for transportation that can be moved with a forklift or the like while carrying luggage.
  • Containers containing foodstuffs such as fruits and vegetables can be placed on this pallet. Since the pallet of the present invention incorporates a plasma generator, it is desirable to configure the gas formed by the plasma to reach the surface of the foodstuffs. For this reason, it is preferable that the container for storing foodstuffs has high air permeability and is a perforated rectangular basket or the like. In addition, when foodstuffs such as fruits and vegetables are stored in cardboard boxes, it is possible to sterilize not only the foodstuffs but also the cardboard boxes.
  • the material may be resin, metal, wood, or the like, but in consideration of incorporating a plasma generator, which will be described later, a highly durable material such as resin or metal is preferable.
  • the pallet 1 is formed with an insertion opening 3 for inserting a fork blade and a gap 16 for accommodating the fork blade so that it can be moved by a forklift when transporting cargo. 1 to 3, in order to form the insertion opening 3 and the gap 16, the pallet 1 is connected to the upper deck plate 11 and the lower surface by girder members (13, 14) connecting the upper deck plate 11 and the lower deck plate 12. A proper space 15 (FIGS. 2(a) and 2(c)) is formed between the deck plates 12. As shown in FIG. In the pallet 1, corner girders 13 are provided at the four corners of the upper deck plate 11 and the lower deck plate 12, and between the adjacent corner girders 13 of the four corner girders 13.
  • an intermediate girder portion 14 is provided, and a gap 16 (FIGS. 2(a) and (c)) is formed between the corner girder portion 13 and the intermediate girder portion 14 to form the fork insertion port 3.
  • a gap 16 (FIGS. 2(a) and (c)) is formed between the corner girder portion 13 and the intermediate girder portion 14 to form the fork insertion port 3.
  • the lower deck plate 12 can be omitted if necessary.
  • the plasma generator 2 is arranged in the intermediate girder section 14 as shown in FIG.
  • the arrangement position of the plasma generator 2 is not limited to this, and may be within the girder member in the central portion of FIG. It can be installed in any position as long as it does not. Further, since the plasma generator is composed of a plurality of parts as will be described later, each part can be arranged on different beam members. However, in this case, it is also necessary to wire across the space (gap) into which the fork blade is inserted. It is preferable to configure so that the wiring is not exposed on the surface of 12 (the portion facing the blade of the fork).
  • the girder member incorporating the plasma generator 2 is formed with a plurality of gaps as shown in FIG. 3 in order to reduce the weight of the pallet 1 and maintain its strength. Although it is possible to form a wider gap so as to accommodate the plasma generator 2, as shown in FIG. It is also possible to arrange them so as to fit in the gaps of the girder members (14, etc.).
  • the plasma generator By incorporating the plasma generator into the pallet 1 as in the present invention, there is no need to separately prepare a plasma generator when packing, storing, or transporting foodstuffs such as fruits and vegetables.
  • a total of four plasma generators 2 are installed on the four intermediate girder portions 14, but the number of installations can be arbitrarily adjusted as well as the installation positions. For example, when storing fruits and vegetables such as mandarin oranges, if four plasma generators 2 are installed in the four intermediate girder portions 14 as shown in the embodiment, they are placed on the mounting surface 11a of the upper deck plate 11. It is possible to more appropriately generate an atmosphere for processing such as sterilization for fresh fruits and vegetables. As will be described later, when a blowing means for diffusing the air coming into contact with the plasma is provided, the installation position of the plasma generator is more flexible.
  • plasma is used to maintain the freshness of foodstuffs such as fruits and vegetables.
  • Plasma is ionized gas, and ozone, oxygen radicals, hydroxyl radicals (OH radicals), and the like are generated by contact with air and moisture.
  • these gases come into contact with foodstuffs, they suppress the growth of mold and various germs and the progression of spoilage, thereby contributing to maintaining the freshness of foodstuffs.
  • it is expected that the ability of foodstuffs to maintain freshness can be enhanced by exposing the foodstuffs to the gas atmosphere generated by the plasma for a long period of time or repeatedly.
  • the plasma generators 2 are installed in the four intermediate girder portions 14, respectively. It is possible, and the pallet 1 as a whole generates 5,000 mg/h of ozone per unit time. In a demonstration experiment, the occurrence of mold and putrefaction of mandarin oranges under these conditions could be reduced to one-third. In addition, there was no significant change in the rate of spoilage (percentage of spoiled items to the total number of items) over time, indicating that mandarin oranges tended to be more resistant to fungi. It is presumed that the reason for this is that the surface of the mandarin orange was stimulated in addition to the sterilization effect by contacting the surface of the mandarin orange with plasma-activated gas such as ozone.
  • the basic structure of the plasma generator 2 used in the present invention consists of a plasma generating means 20, a high voltage generating means 26 and a power supply unit (battery) 27, as shown in FIGS. Further, as will be described later, it is also possible to incorporate air blowing means, communication means, ozone detecting means, etc. into these components.
  • FIG. It comprises a substrate 21 , an induction electrode 22 arranged on the lower surface of the substrate 21 , and a discharge electrode 23 arranged on the upper surface of the substrate 21 .
  • the discharge electrode 23 is disposed so as to overlap with the induction electrode 22 with the substrate 21 interposed therebetween, and a creeping discharge portion 24 for performing creeping discharge is formed in a portion overlapping with the induction electrode 22 .
  • a high AC voltage is applied between the discharge electrode 23 and the induction electrode 22 to generate ionized gas around the creeping discharge portion 24 .
  • the induction electrode 22 on the lower surface is preferably covered with a protective film 25 that protects against oxidation. An induction electrode 22 is exposed on a part of the protective film 25, and an electric wiring from a high voltage generating means 26 is connected to the induction electrode (not shown).
  • the substrate 21 is made of ceramics formed into a plate shape by sintering an inorganic dielectric material such as alumina, for example, because of its excellent insulation and discharge properties.
  • the substrate 21 is a part of the intermediate beam portion 14 or the corner beam portion 13 that connects the upper deck plate 11 and the lower deck plate 12 of the pallet 1, or the periphery of the intermediate beam portion 14 or the corner beam portion 13. It is preferable to form it in a size that allows it to be placed in the space. Of course, it is also possible to use a plurality of plasma generators 20 in one plasma generator 2 .
  • the discharge electrode 23 is made of conductive or anti-conductive ceramics, such as titanium oxide-based ceramics or zinc oxide-based ceramics, it is preferable that the discharge electrode 23 maintains a certain strength and is resistant to oxidation and abrasion.
  • a plasma generator 2 as shown in FIG. 6 is installed in the space 15 between the upper deck plate 11 and the lower deck plate 12. That is, each member constituting the plasma generator 2 has a size and shape that can be installed in the space. Since the plasma generator 2 as shown in FIG. 6 does not require a large space for its installation, it can be installed anywhere in the pallet 1 .
  • the plasma generation device 2 is composed of a plasma generation means 20, a high voltage generation means 26, and a power supply unit 27, and since each can be connected by wiring, there is a degree of freedom in the installation position. Installation on a pallet manufactured by design is also possible.
  • a casing (not shown) for installing the plasma generator 2 may be prepared in advance, and the casing may be installed in the space between the upper deck plate 11 and the lower deck plate 12 . Furthermore, it is also possible to house the plasma generator 2 and some of the parts constituting it in a fireproof casing. Moreover, it is also possible to configure so that it can be detached from the pallet while being housed in the casing. Alternatively, a part of the power supply unit may be composed of a storage battery, and the storage battery may be arranged in a place where it can be easily accessed from the outside of the pallet 1 so that the storage battery can be replaced.
  • some of the plasma generators 2 arranged in a plurality are selectively operated according to the amount of foodstuffs such as fruits and vegetables placed on the pallet 1 to create an optimum processing atmosphere.
  • Switching ON/OFF of the driving of the plasma generator 2 can be done by providing a switch in each plasma generator and manually operating it. It is also possible to adjust the treatment atmosphere such as the ozone concentration by providing a /OFF switching switch or a control panel. Methods for more optimally managing the processing atmosphere are described below.
  • FIG. 7 is a diagram showing how foodstuffs are stored using the pallet 1 of the present invention.
  • a storage facility 6 food items such as fruits and vegetables are stored using a pallet 1.
  • the number of pallets 1 varies according to the amount of foodstuffs stored in the storage facility. For this reason, when storing more foodstuffs in a large storage facility, plasma generators are provided in storage facility 6 according to the number of pallets 1 . On the other hand, even if a small amount of food is stored in a large storage facility, the plasma generator is placed near the food together with the pallet. will be surrounded by
  • the storage facility 6 in FIG. 7 is not limited to storage such as a warehouse, but may be storage space for transportation such as trucks and containers. In particular, during transportation, it is possible to drive the plasma generator appropriately by using a storage battery in the power supply unit.
  • FIG. 8 is another embodiment of the plasma generator 2 used for the pallet of the present invention.
  • the plasma generating means 220 and high voltage generating means 260 may be basically the same as those in FIG.
  • the power supply unit 270 can comprise not only a storage battery but also connection means for connection to an external power supply EP.
  • the storage battery and the external power supply EP may be switched automatically according to the remaining power of the storage battery, or may be switched manually.
  • the connection with the external power supply is not limited to a normal outlet, but may be a non-contact type using inductive power.
  • Reference numeral 200 denotes control means having a CPU and a memory, which controls driving (ON/OFF) of the high voltage generating means 260 to control generation of plasma.
  • control means 200 it is set so that a high voltage can be supplied from one high voltage generating means 260 to a plurality of plasma generating means 220, and the control means 200 not only controls the high voltage generating means but also selects the plasma generating means to be driven. It is also possible to switch between The control means 200 can also control switching between the storage battery of the power supply unit 270 and the external power supply.
  • Reference numeral 221 denotes air blowing means, which is used when blowing air to the surface of the plasma generating means and diffusing the gas in contact with the plasma generated by the plasma generating means 220 over a wider range.
  • the control means 200 also controls the driving of the air blowing means.
  • Reference numeral 300 is ozone detection means. This is for judging to what extent the space is filled with the gas in contact with the plasma, and any means capable of measuring the state of the processing atmosphere is not particularly limited to the ozone detection means. Ozone, which is part of the gas that constitutes the processing atmosphere, is detected here, partly because ozone detection means are generally readily available.
  • the ozone detection means 300 is installed near the plasma generation means 220, it can only detect the local ozone concentration generated by the plasma generation means. ) becomes difficult to detect. Therefore, the ozone detection means 300 is arranged at a position distant from the plasma generation means 220 . It is also possible to separate the ozone detection means from the plasma generator 2 and arrange it independently in the pallet or in the storage facility. In this case, it is necessary to provide a power supply unit, control means, and communication means for transmitting detection results for the ozone detection means.
  • Reference numeral 400 denotes a communication means, which is a component for communicating with an external control means outside the pallet, such as a personal computer, a smartphone, a tablet terminal, and wireless (public line, WiFi (registered trademark), Bluetooth (registered trademark) A local wireless network such as infrared communication) or wired can be used.
  • the control means 200 exchanges information with the external control means (reference numeral CU in FIG. 9). Specifically, it receives a control signal from the outside, drives (ON/OFF) the high voltage generating means 260 for plasma generation, and performs operations such as switching the power supply unit. Further, it transmits the remaining electric power of the storage battery of the power supply unit, the detection result of the ozone detection means, and the drive state of the plasma generation means to the external control means.
  • the control means 200 determines by itself based on the detection result of the ozone detection means 300 and the state of the processing atmosphere obtained via the communication means 400 (for example, the ozone concentration at another location), and the high voltage generation means 260 It is also possible to control the driving of air blowing means 221 . Further, an operation means (not shown) is connected to the control means 200, and, for example, a plurality of control modes (energy-saving operation mode, ozone concentration setting for controlling the plasma generation means, selection of the ozone detection means, etc.) possessed by the control means can be selected. It may be configured to display the operating state of the plasma generator by switching or connecting display means (not shown) (liquid crystal display device, LED segment display means, audio means, etc.).
  • FIG. 9 shows a state in which the pallets 1 are arranged in the storage facility 60, and is a diagram for explaining a management method for optimally setting the processing atmosphere in the storage facility 60.
  • FIG. Each pallet 1 is provided with plasma generators 2A to 2D.
  • the ozone detection means 300A and 300B are connected to the plasma generators 2A and 2B, and the ozone detection means 300E is arranged independently of the plasma generators 2C and 2D.
  • the ozone detection means 300F is installed outside the pallet 1, for example, on the wall surface of the storage facility 60 or the like.
  • the "ozone sensor arranged in space" does not mean only the ozone detection means 300F, but is a concept including the ozone detection means (300A, 300B, 300E) incorporated in the pallet.
  • the detection results of the ozone detection means (300A to 300F) are collected in the external control means CU, and the ozone gas concentration is controlled to, for example, 0.1 ppm to 500 ppm. An optimum value is set within this numerical range, and the plasma generator is selectively driven so that the numerical value of the ozone detecting means becomes that value.
  • the plasma generators 2A to 2D are selectively driven while mainly observing the detection value of the ozone detection means 300F. Also, at that time, if the detected value of the ozone detection means (300A, 300B, 300E) greatly exceeds 500 ppm, there is a fear of damaging foodstuffs such as fruits and vegetables. In 1, the driving of the plasma generator is stopped.
  • the ozone detection means (300A, 300B, 300E) are used.
  • the ozone detection means arranged in the vicinity of the plasma generator are likely to be affected by the operation of the plasma generator.
  • the results of the ozone detection means of other palettes may be used as a reference.
  • a pallet and a food management method using a pallet are highly effective in maintaining the freshness of food and can flexibly cope with storage and transportation facilities of various sizes. can be provided.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nutrition Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Mechanical Engineering (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Storage Of Fruits Or Vegetables (AREA)
  • Pallets (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)

Abstract

Provided area: a pallet that is highly effective in maintaining the freshness of a foodstuff and can be flexibly adapted to various sizes of storage/transportation equipment; and a foodstuff management method using the pallet.　The pallet 1 has a foodstuff placed thereon and is characterized in that a plasma generation device 2 is provided to part of the pallet.　In addition, the foodstuff management method is characterized in that the ozone concentration within the space in which the pallet is stored is adjusted using the plasma generation device 2 of the pallet 1.

Description

パレット及びパレットを使用した食料品の管理方法Food management method using pallets and pallets
　本発明は、パレット及びパレットを使用した食料品の管理方法に関し、特に、食料品を載置するパレットに関する。 The present invention relates to a pallet and a food management method using the pallet, and particularly to a pallet on which food is placed.
　食料品、特に、みかん等の柑橘類、葡萄、メロンなどの果物やトマト、ナスなどの野菜のような青果物は、時間の経過と共に食料品が劣化し、食用に提供できない場合は破棄されることとなる。例えば、我が国でのみかんについては、生産された量のおよそ４０％が廃棄されているというデータもある。 Foods, especially citrus fruits such as mandarin oranges, fruits such as grapes and melons, and fruits and vegetables such as tomatoes and eggplants deteriorate over time and must be discarded if they cannot be provided for human consumption. Become. For example, there is data that about 40% of the mandarin oranges produced in Japan are discarded.
　このような食料品の廃棄問題に対して、例えば、青果物の鮮度を維持するために、エタノールや酢酸、次亜塩素酸ソーダ等の殺菌剤、オルトフェニルフェノールやチアベンダゾール等の防カビ剤などの薬剤を使用する方法も採られているが、安全性の問題が生じやすい。 In order to deal with such food disposal problems, for example, in order to maintain the freshness of fruits and vegetables, agents such as ethanol, acetic acid, bactericides such as sodium hypochlorite, and antifungal agents such as orthophenylphenol and thiabendazole are used. is also used, but it is prone to safety problems.
　薬剤を使わずに鮮度保持ができれば、そのほうがリスクもなく、消費者に対しても安全性の高い青果物を提供することができることから、長年、様々な方法が試されてきた。
　薬剤を使わない鮮度保持技術としては、以下のようなものが挙げられる。 Various methods have been tried for many years because if freshness can be maintained without using chemicals, there is no risk and it is possible to provide consumers with highly safe fruits and vegetables.
Freshness preservation techniques that do not use chemicals include the following.
　例えば、特許文献１には、赤色光及び遠赤色光の双方を同時又は交互に照射することで青果物の鮮度を保持する方法が開示されている。
　ここでは、赤色光は、波長が約６７０ｎｍの波長域の光、遠赤色光は、波長が約７３５～７８０ｎｍの範囲の波長域の光を同時に、又は赤色光と遠赤色光とを交互に照射することで、収穫後の果菜、例えば貯蔵時や店頭陳列時に常温下に置かれた果菜が、軟化したり鮮度が低下したりするのを抑え、鮮度が保持されるとされている。 For example, Patent Literature 1 discloses a method for maintaining the freshness of fruits and vegetables by simultaneously or alternately irradiating both red light and far-red light.
Here, red light is light in a wavelength range of about 670 nm, far-red light is light in a wavelength range of about 735 to 780 nm, or red light and far-red light are irradiated alternately. By doing so, it is said that the freshness of fruit vegetables after harvesting, for example, the softening and deterioration of freshness of fruit vegetables that have been placed at room temperature during storage or store display is suppressed, and the freshness is maintained.
　特許文献２には、光の照射によって野菜や果物等の鮮度を保持する鮮度保持方法が開示されていて、ここでは、遠赤色光と白色光とを照射し、遠赤色光の照射照度は、白色光の照射照度の０．０２倍以上０．２倍以下で鮮度が保持されるとされている。 Patent Document 2 discloses a method for maintaining the freshness of vegetables and fruits by irradiating them with light. It is said that the freshness is maintained at 0.02 times or more and 0.2 times or less of the illumination intensity of the white light.
　特許文献３には、収納棚内部の温度および湿度を均一化すると共に冷風に防菌・防黴性を付与して、長期間の高品質・高鮮度が保持する果実類鮮度保持装置が開示されている。これは、収納庫内に設けられた収納棚に果実類を収納し、冷却機および送風機よりなる冷風循環装置からの冷風を循環して収納庫内を冷却することで、果実類の鮮度を保持するとされている。 Patent Document 3 discloses a fruit freshness-keeping device that equalizes the temperature and humidity inside the storage shelf and imparts antibacterial and antifungal properties to cold air to maintain high quality and high freshness for a long period of time. ing. In this system, fruits are stored on storage shelves in the storage compartment, and cold air is circulated from a cold air circulation device consisting of a cooler and a fan to cool the inside of the storage compartment, thereby preserving the freshness of the fruits. It is said that
　一方、近年はオゾンを利用して鮮度を保持する方法が採用されている。
　例えば、特許文献４には、紫外線照射によりオゾンを発生させて、青果物の追熟、老化の原因とされるエチレンを効率良く除去する技術が開示されている。
　これは、貯蔵庫へ鮮度保持雰囲気を供給する装置で、前記貯蔵庫内の雰囲気を導入して紫外線照射処理を施して前記鮮度保持雰囲気を生成する紫外線照射部と、前記紫外線照射部に対して加湿処理を施す加湿処理部とを備える。この装置によれば、加湿処理された雰囲気に紫外線照射処理を施すことで、庫内雰囲気と比較してエチレン濃度が低下した鮮度保持雰囲気を貯蔵庫へと供給でき、紫外線照射部に対して加湿処理を施すので、紫外線照射処理の対象となる雰囲気の湿度、ひいてはエチレン除去率は速やかに増大する。
　そして、紫外線照射処理に採用される紫外線の波長を、オゾンが発生する波長とすると、エチレンを効率良く除去することができ、より青果物の鮮度を保持することができるものとなる。 On the other hand, in recent years, a method of maintaining freshness using ozone has been adopted.
For example, Patent Literature 4 discloses a technique for efficiently removing ethylene, which causes ripening and aging of fruits and vegetables, by generating ozone by irradiating ultraviolet rays.
This is a device for supplying a freshness-preserving atmosphere to a storage, and includes an ultraviolet irradiation unit that introduces the atmosphere in the storage and applies ultraviolet irradiation treatment to generate the freshness-preserving atmosphere, and a humidification treatment for the ultraviolet irradiation unit. and a humidification processing unit for applying. According to this device, by applying ultraviolet irradiation treatment to the humidified atmosphere, it is possible to supply a freshness-preserving atmosphere with a lower ethylene concentration than the atmosphere inside the storage chamber, and humidify the ultraviolet irradiation part. is applied, the humidity of the atmosphere to be subjected to the ultraviolet irradiation treatment, and thus the ethylene removal rate, rapidly increases.
If the wavelength of the ultraviolet rays employed in the ultraviolet irradiation treatment is the wavelength at which ozone is generated, ethylene can be removed efficiently, and the freshness of the fruits and vegetables can be further maintained.
　また、殺菌や病害虫防除のため、オゾンガスを利用し、青果物を所定の濃度のガスに曝露させる方法も、特許文献５に開示されている。 Patent Document 5 also discloses a method of exposing fruits and vegetables to a predetermined concentration of gas by using ozone gas for sterilization and pest control.
　特許文献１又は２のような、光照射を行う場合は、光が届かない影の部分には鮮度保持効果が十分に及ばない。また、特許文献３のような冷却装置を利用する場合は、食料品を保管する空間に応じて設備も大がかりとなり、設備費や消費電力等のランニングコストも大きくなる。 When light irradiation is performed, as in Patent Documents 1 and 2, the effect of preserving freshness is not sufficient for shadowed areas where light does not reach. Moreover, when using a cooling device such as that disclosed in Patent Document 3, the equipment becomes large-scaled according to the space in which the foodstuffs are stored, and running costs such as equipment costs and power consumption also increase.
　特許文献４又は５のようにオゾンを利用する方法は、殺菌効果は高いが、食料品を保管する空間によっては、オゾン発生器などの設備を複数配置することが必要であったり、機器自体の大型化が必要となる。また、食料品の運搬や一時保管に際しては、トラックやコンテナ、さらには一時保管庫に、オゾン発生器を別途組み込む必要があり、設備費も甚大なものとなる。 The method of using ozone as in Patent Documents 4 and 5 has a high sterilization effect, but depending on the space where food is stored, it may be necessary to install multiple facilities such as an ozone generator, or the equipment itself may be difficult. Upsizing is required. In addition, when transporting or temporarily storing foodstuffs, it is necessary to separately incorporate an ozone generator into the truck, container, or temporary storage, resulting in a significant equipment cost.
特開２０１６－２６４８４号公報JP 2016-26484 A 特開２０１９－１４０９７０号公報JP 2019-140970 A 特開２００１－２４８９５７号公報Japanese Patent Application Laid-Open No. 2001-248957 特開２００２－３４５４００号公報Japanese Patent Application Laid-Open No. 2002-345400 特開２０１９－２０８８６４号公報JP 2019-208864 A
　本発明は、上述した問題を解決するため、食料品の鮮度維持効果が高く、多様なサイズの保管・運搬設備にも柔軟に対応することが可能なパレット及びパレットを使用した食料品の管理方法を提供することである。 In order to solve the above-mentioned problems, the present invention provides a pallet and a food management method using a pallet that has a high effect of maintaining the freshness of food and can flexibly cope with storage and transportation facilities of various sizes. is to provide
　上述した課題を解決するため、本発明のパレット及びパレットを使用した食料品の管理方法は、以下のような特徴を有する。
（１）　食料品を載置するパレットにおいて、該パレットの一部にプラズマ発生装置を備えたことを特徴とする。 In order to solve the above-described problems, the pallet and food management method using the pallet of the present invention have the following features.
(1) A pallet on which foodstuffs are placed, characterized in that a part of the pallet is equipped with a plasma generator.
（２）　上記（１）に記載のパレットにおいて、該プラズマ発生装置は、電力を供給する電源ユニット、供給された電力の一部を使用して高電圧を発生する高電圧発生手段、該高電圧発生手段から供給される高電圧を用いてプラズマを発生するプラズマ発生手段を有することを特徴とする。 (2) In the palette described in (1) above, the plasma generator includes a power supply unit that supplies power, a high voltage generation means that uses part of the supplied power to generate a high voltage, the high voltage It is characterized by having a plasma generating means for generating plasma using a high voltage supplied from the generating means.
（３）　上記（２）に記載のパレットにおいて、該電源ユニットは、蓄電池又は外部電源への接続手段のいずれかを備えることを特徴とする。 (3) The pallet described in (2) above is characterized in that the power supply unit comprises either a storage battery or connection means to an external power supply.
（４）　上記（１）乃至（３）のいずれかに記載のパレットにおいて、該プラズマ発生装置は、該プラズマ発生手段で発生されたプラズマに接触した気体を送風する送風手段を有することを特徴とする。 (4) In the pallet according to any one of (1) to (3) above, the plasma generator is characterized by having blowing means for blowing gas in contact with the plasma generated by the plasma generating means. do.
（５）　上記（１）乃至（４）のいずれかに記載のパレットにおいて、該パレットの一部にオゾン検出手段を備えたこと特徴とする。 (5) The pallet according to any one of the above (1) to (4) is characterized in that ozone detecting means is provided in a part of the pallet.
（６）　上記（１）乃至（５）のいずれかに記載のパレットにおいて、該プラズマ発生装置は、該プラズマ発生装置の駆動を制御する制御手段と、該制御手段と外部制御手段との間で通信を行う通信手段を有することを特徴とする。 (6) In the palette according to any one of (1) to (5) above, the plasma generator includes control means for controlling driving of the plasma generator, and between the control means and the external control means It is characterized by having communication means for communication.
（７）　上記（１）乃至（６）に記載のパレットの該プラズマ発生装置を用いて、該パレットが収容されている空間内のオゾン濃度を調整することを特徴とする食料品の管理方法である。 (7) A method of managing foodstuffs, characterized by adjusting the ozone concentration in the space in which the pallet is accommodated, using the plasma generator for the pallet described in (1) to (6) above. be.
（８）　上記（７）に記載の食料品の管理方法において、該空間内に配置されたオゾンセンサと、該オゾン検出手段が検知するオゾン濃度に基づき、該パレットの該プラズマ発生装置を駆動制御することを特徴とする。 (8) In the food management method described in (7) above, the plasma generator of the pallet is driven and controlled based on the ozone concentration detected by the ozone sensor and the ozone detection means arranged in the space. characterized by
　本発明によれば、食料品を載置するパレットにおいて、該パレットの一部にプラズマ発生装置を備えているため、食料品を保管・運搬する設備毎にプラズマ発生装置を設置する必要がなく、食料品の近傍でプラズマを発生することで、効率的に食料品の表面を殺菌処理等を施すことができる。しかも、食料品の保管量や運搬量が多くなるに従い、使用するパレットも増加するため、効率的にプラズマの発生量を増加させることも可能となる。 According to the present invention, since a part of the pallet on which foodstuffs are placed is equipped with a plasma generator, there is no need to install a plasma generator for each facility for storing and transporting foodstuffs. By generating plasma in the vicinity of food products, the surface of food products can be efficiently subjected to sterilization treatment or the like. Moreover, as the amount of food to be stored and transported increases, the number of pallets to be used also increases, making it possible to efficiently increase the amount of plasma generated.
　また、本発明のように、パレットの該プラズマ発生装置を用いて、該パレットが収容されている空間内のオゾン濃度を調整することで、空間のサイズや食料品の種類や量などに応じた、最適な殺菌処理等が可能な食料品の管理方法を提供できる。 In addition, as in the present invention, by using the plasma generator of the pallet to adjust the ozone concentration in the space in which the pallet is accommodated, , can provide a food management method capable of optimal sterilization and the like.
本発明に係るパレットの一例を示す斜視図である。It is a perspective view showing an example of a pallet according to the present invention. 図１のパレットを説明する（ａ）上面図、（ｂ）上面図の線Ａ－Ａにおける断面図、（ｃ）上面図の線Ｂ－Ｂにおける断面図である。2A and 2B illustrate the pallet of FIG. 1; FIG. 2B is a cross-sectional view taken along line AA in the top view; and FIG. 4C is a cross-sectional view taken along line BB in the top view. 図１のパレットを説明する底面図である。FIG. 2 is a bottom view illustrating the pallet of FIG. 1; 図３の一部の拡大図である。4 is an enlarged view of a portion of FIG. 3; FIG. 本発明のパレットに使用可能なプラズマ発生手段の一例を示す図である。It is a figure which shows an example of the plasma generation means which can be used for the pallet of this invention. 本発明のパレットに使用可能なプラズマ発生装置の一例を示す図である。It is a figure which shows an example of the plasma generator which can be used for the pallet of this invention. 本発明に係るパレットを使用した保管状態を説明する図である。It is a figure explaining the storage state using the pallet which concerns on this invention. 本発明のパレットに使用可能なプラズマ発生装置の他の実施例を示す図である。FIG. 4 is a diagram showing another embodiment of a plasma generator that can be used with the pallet of the present invention; 本発明のパレットを使用した食料品の管理方法を説明する図である。It is a figure explaining the management method of foodstuffs using the pallet of this invention.
　以下、本発明に係るパレット及びパレットを使用した食料品の管理方法について、詳細に説明する。
　なお、以下の発明の実施形態については、形状、数値的条件などは、単なる好適例にすぎない。従って、この発明は以下の実施形態に限定されるものではなく、この発明の目的や作用効果を逸脱しない範囲において、種々の変更を行うことができることは、言うまでもない。 Hereinafter, the pallet and the food management method using the pallet according to the present invention will be described in detail.
It should be noted that the shapes, numerical conditions, etc. of the following embodiments of the invention are merely preferred examples. Therefore, the present invention is not limited to the following embodiments, and it goes without saying that various modifications can be made without departing from the scope of the invention.
　本発明は、図１乃至４に示すように、食料品を載置するパレットにおいて、該パレットの一部にプラズマ発生装置を備えたことを特徴とする。
　図１は、パレットの一例を示す外観の斜視図である。図２は図１のパレットの（ａ）上面図、（ｂ）上面図の線Ａ－Ａにおける断面図、（ｃ）上面図の線Ｂ－Ｂにおける断面図である。図３は、図１のパレットを説明する底面図であり、図４は図３の一部の拡大図である。 The present invention, as shown in FIGS. 1 to 4, is characterized in that a pallet on which foodstuffs are placed is equipped with a plasma generator in a part of the pallet.
FIG. 1 is an external perspective view showing an example of a pallet. 2 is (a) a top view of the pallet of FIG. 1, (b) a cross-sectional view taken along line AA in the top view, and (c) a cross-sectional view taken along line BB in the top view. 3 is a bottom view illustrating the pallet of FIG. 1, and FIG. 4 is an enlarged view of a part of FIG.
　パレット（ｐａｌｌｅｔ）は、荷物を載せたままフォークリフトなどで移動できるようにした運搬用の荷台を意味している。このパレットの上に、青果物等の食料品を入れた容器を載置することが可能である。本発明のパレットでは、プラズマ発生装置を組み込んでいるため、プラズマで形成される気体が食料品の表面に届くように構成することが望ましい。このため、食料品を収納する容器は、通気性が高く、穴の開いた矩形状の籠などが好ましい。また、青果物等の食料品を段ボールに収容する場合には、食料品だけでなく段ボールの殺菌処理も併せて行うことが可能となる。 A pallet means a carrier for transportation that can be moved with a forklift or the like while carrying luggage. Containers containing foodstuffs such as fruits and vegetables can be placed on this pallet. Since the pallet of the present invention incorporates a plasma generator, it is desirable to configure the gas formed by the plasma to reach the surface of the foodstuffs. For this reason, it is preferable that the container for storing foodstuffs has high air permeability and is a perforated rectangular basket or the like. In addition, when foodstuffs such as fruits and vegetables are stored in cardboard boxes, it is possible to sterilize not only the foodstuffs but also the cardboard boxes.
　パレット１の一例としては、図１乃至４に示すように、上面デッキプレート１１と、下面デッキプレート１２と、前記上面デッキプレート１１と前記下面デッキプレート１２とを連結するための桁部材（１３，１４）で構成される。素材は、樹脂製、金属製、木製等あるが、後述するプラズマ発生装置を組み込むことを考慮すると、樹脂製や金属製など耐久性の高い素材が好ましい。 As an example of the pallet 1, as shown in FIGS. 14). The material may be resin, metal, wood, or the like, but in consideration of incorporating a plasma generator, which will be described later, a highly durable material such as resin or metal is preferable.
　通常、パレット１は、荷物の運搬にあたりフォークリフトで移動可能なように、フォークの刃を差し込むための差込口３とフォークの刃を収容する隙間１６が形成されている。図１乃至３では、差込口３や隙間１６を形成するために、パレット１は、上面デッキプレート１１と下面デッキプレート１２を連結する桁部材（１３，１４）により、上面デッキプレート１１と下面デッキプレート１２の間に適度な空間１５（図２（ａ）（ｃ））を形成している。パレット１では、上面デッキプレート１１と下面デッキプレート１２の四方の隅部に隅桁部１３を、そして、前記四方の隅桁部１３の隣り合う隅桁部１３と隅桁部１３との間に、中間桁部１４を設け、隅桁部１３と中間桁部１４の間に隙間１６（図２（ａ）（ｃ））を形成し、フォーク差込口３としている。なお、下面デッキプレート１２は必要に応じて省略することも可能である。 Usually, the pallet 1 is formed with an insertion opening 3 for inserting a fork blade and a gap 16 for accommodating the fork blade so that it can be moved by a forklift when transporting cargo. 1 to 3, in order to form the insertion opening 3 and the gap 16, the pallet 1 is connected to the upper deck plate 11 and the lower surface by girder members (13, 14) connecting the upper deck plate 11 and the lower deck plate 12. A proper space 15 (FIGS. 2(a) and 2(c)) is formed between the deck plates 12. As shown in FIG. In the pallet 1, corner girders 13 are provided at the four corners of the upper deck plate 11 and the lower deck plate 12, and between the adjacent corner girders 13 of the four corner girders 13. , an intermediate girder portion 14 is provided, and a gap 16 (FIGS. 2(a) and (c)) is formed between the corner girder portion 13 and the intermediate girder portion 14 to form the fork insertion port 3. As shown in FIG. It should be noted that the lower deck plate 12 can be omitted if necessary.
　プラズマ発生装置２は、図１又は２に示すように、中間桁部１４内に配置されている。プラズマ発生装置２の配置位置は、これに限らず、図２（ａ）の中央部分の桁部材や４つの角の隅桁部１３内であっても良く、パレット１の使用や保管に障害とならない位置であれば、任意の箇所に設置できる。また、後述するようにプラズマ発生装置が複数の部品から構成されるため、各部品を異なる桁部材に配置することも可能である。ただし、この場合は、フォークの刃が挿入される空間（隙間）を横切って配線を行う必要もあるため、フォークの刃の出し入れによって配線が切断されないよう、例えば、上面デッキプレート１１や下面デッキプレート１２の表面（フォークの刃に対向する部分）に配線が露出しないよう構成することが好ましい。 The plasma generator 2 is arranged in the intermediate girder section 14 as shown in FIG. The arrangement position of the plasma generator 2 is not limited to this, and may be within the girder member in the central portion of FIG. It can be installed in any position as long as it does not. Further, since the plasma generator is composed of a plurality of parts as will be described later, each part can be arranged on different beam members. However, in this case, it is also necessary to wire across the space (gap) into which the fork blade is inserted. It is preferable to configure so that the wiring is not exposed on the surface of 12 (the portion facing the blade of the fork).
　プラズマ発生装置２を組み込む桁部材は、パレット１の重量を軽減しつつ、強度を保持するため、図３に示すように複数の空隙を設けて形成されている。プラズマ発生装置２を収容できるように、より広い空隙部分を形成することも可能であるが、図４（図３のα部分の拡大図）に示すように、プラズマ発生装置を構成する部品を、桁部材（１４等）の空隙部に、収まるように配置することも可能である。 The girder member incorporating the plasma generator 2 is formed with a plurality of gaps as shown in FIG. 3 in order to reduce the weight of the pallet 1 and maintain its strength. Although it is possible to form a wider gap so as to accommodate the plasma generator 2, as shown in FIG. It is also possible to arrange them so as to fit in the gaps of the girder members (14, etc.).
　本発明のように、パレット１にプラズマ発生装置を組み込むことで、青果物等の食料品の箱詰め時や保管時、輸送時に、プラズマ発生装置を別途用意する必要が無い。
　また、図１乃至３の実施例では、４箇所の中間桁部１４に計４個のプラズマ発生装置２を設置しているが、設置位置と同様に設置数も任意に調整できるものである。
　例えば、みかん等の青果物の保存にあたっては、実施例に示すように４箇所の中間桁部１４内に４個のプラズマ発生装置２を設置すると、上面デッキプレート１１の載置面１１ａに載置された青果物に殺菌等の処理雰囲気をより適切に生成することができる。なお、後述するように、プラズマに接触する空気を拡散するための送風手段を設ける場合には、プラズマ発生装置の設置位置はより自由度が高くなる。 By incorporating the plasma generator into the pallet 1 as in the present invention, there is no need to separately prepare a plasma generator when packing, storing, or transporting foodstuffs such as fruits and vegetables.
In addition, in the embodiment of FIGS. 1 to 3, a total of four plasma generators 2 are installed on the four intermediate girder portions 14, but the number of installations can be arbitrarily adjusted as well as the installation positions.
For example, when storing fruits and vegetables such as mandarin oranges, if four plasma generators 2 are installed in the four intermediate girder portions 14 as shown in the embodiment, they are placed on the mounting surface 11a of the upper deck plate 11. It is possible to more appropriately generate an atmosphere for processing such as sterilization for fresh fruits and vegetables. As will be described later, when a blowing means for diffusing the air coming into contact with the plasma is provided, the installation position of the plasma generator is more flexible.
　本発明では、青果物等の食料品の鮮度を維持するために、プラズマを使用している。プラズマは電離気体であり、空気や水分と接触することで、オゾンや酸素ラジカル、ヒドロキシルラジカル（ＯＨラジカル）などが生成される。これらのガスが食料品に接触することで、カビや雑菌の繁殖や腐敗の進行を抑制し、食料品の鮮度維持に寄与する。しかも、プラズマで生成されるガスの雰囲気中に、食料品を長時間又は繰り返し曝露することで、食料品が持つ鮮度維持能力をより高めることも期待される。また、上述したように青果物等の食料品を収容する段ボールの殺菌処理も併せて実現すること可能となる。 In the present invention, plasma is used to maintain the freshness of foodstuffs such as fruits and vegetables. Plasma is ionized gas, and ozone, oxygen radicals, hydroxyl radicals (OH radicals), and the like are generated by contact with air and moisture. When these gases come into contact with foodstuffs, they suppress the growth of mold and various germs and the progression of spoilage, thereby contributing to maintaining the freshness of foodstuffs. In addition, it is expected that the ability of foodstuffs to maintain freshness can be enhanced by exposing the foodstuffs to the gas atmosphere generated by the plasma for a long period of time or repeatedly. In addition, as described above, it is also possible to sterilize corrugated cardboard containing foodstuffs such as fruits and vegetables.
　図１乃至３の実施例では、４本の中間桁部１４にそれぞれプラズマ発生装置２を設置しているが、１つのプラズマ発生装置２におけるオゾン発生量は、例えば、約１，２５０ｍｇ／ｈが可能であり、パレット１全体として、単位時間あたりのオゾン発生量は５，０００ｍｇ／ｈとなる。
　実証実験では、この条件におけるみかんのかびの発生、腐敗は、３分の１に低減できた。また、腐敗率（全体数に占める腐敗した品物の数の割合）は時間が経過しても大きな変化がなく、みかんが菌に対し強くなる傾向が見られた。これは、みかんの表面がオゾン等のプラズマで活性化されたガスが接触することにより、殺菌作用と合わせて、みかんの表面が刺激を受けたことが原因と推定される。 In the embodiment of FIGS. 1 to 3, the plasma generators 2 are installed in the four intermediate girder portions 14, respectively. It is possible, and the pallet 1 as a whole generates 5,000 mg/h of ozone per unit time.
In a demonstration experiment, the occurrence of mold and putrefaction of mandarin oranges under these conditions could be reduced to one-third. In addition, there was no significant change in the rate of spoilage (percentage of spoiled items to the total number of items) over time, indicating that mandarin oranges tended to be more resistant to fungi. It is presumed that the reason for this is that the surface of the mandarin orange was stimulated in addition to the sterilization effect by contacting the surface of the mandarin orange with plasma-activated gas such as ozone.
　本発明で使用するプラズマ発生装置２の基本的構造としては、図５及び図６に示すように、プラズマ発生手段２０と高電圧発生手段２６及び電源ユニット（蓄電池）２７とからなる。また、後述するように、これらの構成部品に、送風手段、通信手段、オゾン検出手段などを組み込むことも可能である。 The basic structure of the plasma generator 2 used in the present invention consists of a plasma generating means 20, a high voltage generating means 26 and a power supply unit (battery) 27, as shown in FIGS. Further, as will be described later, it is also possible to incorporate air blowing means, communication means, ozone detecting means, etc. into these components.
　プラズマ発生手段２０の一例を図５に示す。基板２１と、前記基板２１の下面に配設される誘導電極２２と、前記基板２１の上面に配設される放電電極２３とからなる。放電電極２３は、基板２１を挟んで、誘導電極２２と重なるように配設され、誘導電極２２と重なり合う部分に沿面放電を行う沿面放電部２４が形成される。沿面放電を行うには、放電電極２３と誘導電極２２との間に交流の高電圧を印加し、沿面放電部２４を中心に、電離気体を発生させる。なお、下面の誘導電極２２は、酸化を保護する保護膜２５で被覆されることが好ましい。保護膜２５の一部には誘導電極２２が露出されており、高電圧発生手段２６からの電気配線が該誘導電極に接続されている（図示せず）。 An example of the plasma generating means 20 is shown in FIG. It comprises a substrate 21 , an induction electrode 22 arranged on the lower surface of the substrate 21 , and a discharge electrode 23 arranged on the upper surface of the substrate 21 . The discharge electrode 23 is disposed so as to overlap with the induction electrode 22 with the substrate 21 interposed therebetween, and a creeping discharge portion 24 for performing creeping discharge is formed in a portion overlapping with the induction electrode 22 . To perform creeping discharge, a high AC voltage is applied between the discharge electrode 23 and the induction electrode 22 to generate ionized gas around the creeping discharge portion 24 . In addition, the induction electrode 22 on the lower surface is preferably covered with a protective film 25 that protects against oxidation. An induction electrode 22 is exposed on a part of the protective film 25, and an electric wiring from a high voltage generating means 26 is connected to the induction electrode (not shown).
　基板２１は、例えば、アルミナ等の無機物質誘電体を焼結して板状に形成されたセラミックスで構成すると絶縁性、放電性に優れ好適である。そして、基板２１は、パレット１の上面デッキプレート１１と下面デッキプレート１２を連結する中間桁部１４又は隅桁部１３の桁部材の一部、あるいは前記中間桁部１４又は隅桁部１３の周辺の空間に入れ込んで設置できる大きさに形成することが好ましい。当然、一つのプラズマ発生装置２に複数のプラズマ発生手段２０を利用することも可能である。 It is preferable that the substrate 21 is made of ceramics formed into a plate shape by sintering an inorganic dielectric material such as alumina, for example, because of its excellent insulation and discharge properties. The substrate 21 is a part of the intermediate beam portion 14 or the corner beam portion 13 that connects the upper deck plate 11 and the lower deck plate 12 of the pallet 1, or the periphery of the intermediate beam portion 14 or the corner beam portion 13. It is preferable to form it in a size that allows it to be placed in the space. Of course, it is also possible to use a plurality of plasma generators 20 in one plasma generator 2 .
　放電電極２３は、導電性あるいは反導電性セラミックス、例えば酸化チタン系セラミックス、酸化亜鉛系セラミックスであれば、放電電極２３が一定の強度を保持し、また酸化や摩耗に強く好適である。 If the discharge electrode 23 is made of conductive or anti-conductive ceramics, such as titanium oxide-based ceramics or zinc oxide-based ceramics, it is preferable that the discharge electrode 23 maintains a certain strength and is resistant to oxidation and abrasion.
　本発明にかかるパレット１の特徴の一つとしては、上面デッキプレート１１と下面デッキプレート１２の間の空間１５に、図６に示すようなプラズマ発生装置２が設置される。すなわち、前記プラズマ発生装置２を構成する各部材は、前記空間内に設置できる大きさや形状で構成される。図６のような、プラズマ発生装置２は、その設置に大きな占有スペースを必要としないため、パレット１内の任意の場所に取付可能となっている。
　プラズマ発生装置２としては、プラズマ発生手段２０と、高電圧発生手段２６と、電源ユニット２７とで構成され、それぞれ配線で接続できるようになっているため、設置位置に自由度があり、既存の設計によって製造されるパレットに設置することも可能である。また、あらかじめプラズマ発生装置２を設置するためのケーシング（図示せず）を用意し、前記ケーシングを上面デッキプレート１１と下面デッキプレート１２の間の空間に設置する構成とすることもできる。さらに、プラズマ発生装置２やそれを構成する部品の一部を耐火性を有するケーシング内に収容することも可能である。しかも、ケーシングに収容したままパレットから着脱するよう構成することも可能である。
　また、電源ユニットの一部を蓄電池で構成し、該蓄電池をパレット１の外から容易にアクセスできる場所に配置し、蓄電池の交換が可能なように構成することもできる。 As one of the characteristics of the pallet 1 according to the present invention, a plasma generator 2 as shown in FIG. 6 is installed in the space 15 between the upper deck plate 11 and the lower deck plate 12. That is, each member constituting the plasma generator 2 has a size and shape that can be installed in the space. Since the plasma generator 2 as shown in FIG. 6 does not require a large space for its installation, it can be installed anywhere in the pallet 1 .
The plasma generation device 2 is composed of a plasma generation means 20, a high voltage generation means 26, and a power supply unit 27, and since each can be connected by wiring, there is a degree of freedom in the installation position. Installation on a pallet manufactured by design is also possible. Alternatively, a casing (not shown) for installing the plasma generator 2 may be prepared in advance, and the casing may be installed in the space between the upper deck plate 11 and the lower deck plate 12 . Furthermore, it is also possible to house the plasma generator 2 and some of the parts constituting it in a fireproof casing. Moreover, it is also possible to configure so that it can be detached from the pallet while being housed in the casing.
Alternatively, a part of the power supply unit may be composed of a storage battery, and the storage battery may be arranged in a place where it can be easily accessed from the outside of the pallet 1 so that the storage battery can be replaced.
　プラズマ発生装置２の駆動については、パレット１に載置する青果物等の食料品の量にあわせて、複数配置されたプラズマ発生装置２の一部を選択的に動作させて、最適な処理雰囲気を形成する。プラズマ発生装置２の駆動のＯＮ／ＯＦＦの切り替えは、個々のプラズマ発生装置にスイッチを設け、それを手動で操作することも可能であるが、パレット１の桁部材（１３，１４）に、ＯＮ／ＯＦＦの切り替え用のスイッチやコントロールパネルを設けて、オゾン濃度等の処理雰囲気を調整することも可能である。処理雰囲気をより最適に管理する方法については、後述する。 As for the driving of the plasma generator 2, some of the plasma generators 2 arranged in a plurality are selectively operated according to the amount of foodstuffs such as fruits and vegetables placed on the pallet 1 to create an optimum processing atmosphere. Form. Switching ON/OFF of the driving of the plasma generator 2 can be done by providing a switch in each plasma generator and manually operating it. It is also possible to adjust the treatment atmosphere such as the ozone concentration by providing a /OFF switching switch or a control panel. Methods for more optimally managing the processing atmosphere are described below.
　図７は、本発明のパレット１を使用した食料品の保管状態を示す図である。
　保管設備６内で、パレット１を用いて青果物等の食料品が保管されている。パレット１の数は、保管設備内に保管する食料品の量に応じて数が変化する。このため、大きな保管設備でより多くの食料品を保管する場合には、パレット１の数に応じてプラズマ発生装置が保管設備６内に設けられることになる。
　一方、大きな保管設備内に少量の食料品を保管する場合であっても、プラズマ発生装置はパレットと一緒に、食料品の近傍に配置されているため、食料品の周囲はプラズマにより発生した気体で包囲されることとなる。 FIG. 7 is a diagram showing how foodstuffs are stored using the pallet 1 of the present invention.
In a storage facility 6, food items such as fruits and vegetables are stored using a pallet 1. - 特許庁The number of pallets 1 varies according to the amount of foodstuffs stored in the storage facility. For this reason, when storing more foodstuffs in a large storage facility, plasma generators are provided in storage facility 6 according to the number of pallets 1 .
On the other hand, even if a small amount of food is stored in a large storage facility, the plasma generator is placed near the food together with the pallet. will be surrounded by
　図７の保管設備６は、倉庫等の保管庫に限らず、トラックやコンテナ等の輸送用収納スペースであっても良い。特に、輸送中においては、電源ユニットに蓄電池を使用することで、プラズマ発生装置を適宜駆動することも可能となる。 The storage facility 6 in FIG. 7 is not limited to storage such as a warehouse, but may be storage space for transportation such as trucks and containers. In particular, during transportation, it is possible to drive the plasma generator appropriately by using a storage battery in the power supply unit.
　図８は、本発明のパレットに使用されるプラズマ発生装置２の他の実施例である。プラズマ発生手段２２０、高電圧発生手段２６０は、図６のものと基本的に同じであっても良い。電源ユニット２７０は、蓄電池だけでなく、外部電源ＥＰに接続される接続手段を備えることができる。蓄電池と外部電源ＥＰとは、蓄電池の電力残量に応じて自動的に切り替えても良いし、手動で切り替えても良い。また、外部電源との接続は、通常のコンセントに限らず誘導電力を用いた非接触型でも良い。 FIG. 8 is another embodiment of the plasma generator 2 used for the pallet of the present invention. The plasma generating means 220 and high voltage generating means 260 may be basically the same as those in FIG. The power supply unit 270 can comprise not only a storage battery but also connection means for connection to an external power supply EP. The storage battery and the external power supply EP may be switched automatically according to the remaining power of the storage battery, or may be switched manually. Moreover, the connection with the external power supply is not limited to a normal outlet, but may be a non-contact type using inductive power.
　符号２００はＣＰＵやメモリを備えた制御手段であり、高電圧発生手段２６０の駆動（ＯＮ／ＯＦＦ）を制御し、プラズマの発生をコントロールしている。また、１つの高電圧発生手段２６０から複数のプラズマ発生手段２２０に高電圧を供給できるように設定し、制御手段２００で、高電圧発生手段を制御するだけでなく、駆動するプラズマ発生手段を選択的に切換えるよう構成することも可能である。
　また、制御手段２００は、上述した電源ユニット２７０の蓄電池と外部電源との切替の制御を行うことも可能である。 Reference numeral 200 denotes control means having a CPU and a memory, which controls driving (ON/OFF) of the high voltage generating means 260 to control generation of plasma. In addition, it is set so that a high voltage can be supplied from one high voltage generating means 260 to a plurality of plasma generating means 220, and the control means 200 not only controls the high voltage generating means but also selects the plasma generating means to be driven. It is also possible to switch between
The control means 200 can also control switching between the storage battery of the power supply unit 270 and the external power supply.
　符号２２１は送風手段であり、プラズマ発生手段の表面に風を送り、プラズマ発生手段２２０が発生させたプラズマに接触した気体を、より広範囲に拡散する際に使用される。この送風手段の駆動も制御手段２００でコントロールされる。 Reference numeral 221 denotes air blowing means, which is used when blowing air to the surface of the plasma generating means and diffusing the gas in contact with the plasma generated by the plasma generating means 220 over a wider range. The control means 200 also controls the driving of the air blowing means.
　符号３００はオゾン検出手段である。これは、プラズマに接触した気体がどの程度空間に充満しているかを判断するためのものであり、処理雰囲気の状態を計測できる手段であれば、特に、オゾン検出手段に拘らない。一般的にオゾン検出手段が入手し易いこともあり、処理雰囲気を構成する気体の一部であるオゾンを、ここでは検出している。 Reference numeral 300 is ozone detection means. This is for judging to what extent the space is filled with the gas in contact with the plasma, and any means capable of measuring the state of the processing atmosphere is not particularly limited to the ozone detection means. Ozone, which is part of the gas that constitutes the processing atmosphere, is detected here, partly because ozone detection means are generally readily available.
　オゾン検出手段３００は、プラズマ発生手段２２０の近傍に設置すると、当該プラズマ発生手段が発生した局所的なオゾン濃度しか検出できないため、食料品を取り囲むより広い範囲の処理雰囲気の精確な状態（オゾン濃度）を検出することが困難となる。このため、オゾン検出手段３００は、プラズマ発生手段２２０から離れた位置に配置される。また、プラズマ発生装置２とは切り離し、オゾン検出手段を独立して、パレット内又は保管設備内に配置することも可能である。この場合には、オゾン検出手段用に、電源ユニットや制御手段、検出結果を送信するための通信手段を設けることが必要である。 If the ozone detection means 300 is installed near the plasma generation means 220, it can only detect the local ozone concentration generated by the plasma generation means. ) becomes difficult to detect. Therefore, the ozone detection means 300 is arranged at a position distant from the plasma generation means 220 . It is also possible to separate the ozone detection means from the plasma generator 2 and arrange it independently in the pallet or in the storage facility. In this case, it is necessary to provide a power supply unit, control means, and communication means for transmitting detection results for the ozone detection means.
　符号４００は通信手段であり、パソコン、スマートフォン、タブレット端末など、パレットの外部にある外部制御手段と通信を行うための部品であり、無線（公衆回線、ＷｉＦｉ（登録商標）、Ｂｌｕｅｔｏｏｔｈ（登録商標）などのローカル無線ネットワーク、赤外線通信）又は有線などが利用可能である。通信手段４００を用いて、制御手段２００は外部制御手段（図９の符号ＣＵ）と情報の交換を行う。具体的には、外部からの制御信号を受け取り、プラズマ発生のために高電圧発生手段２６０を駆動（ＯＮ／ＯＦＦ）したり、電源ユニットを切換える動作などを行う。また、電源ユニットの蓄電池の電力残量や、オゾン検出手段の検出結果、さらにはプラズマ発生手段の駆動状態を、外部制御手段に送信する。 Reference numeral 400 denotes a communication means, which is a component for communicating with an external control means outside the pallet, such as a personal computer, a smartphone, a tablet terminal, and wireless (public line, WiFi (registered trademark), Bluetooth (registered trademark) A local wireless network such as infrared communication) or wired can be used. Using the communication means 400, the control means 200 exchanges information with the external control means (reference numeral CU in FIG. 9). Specifically, it receives a control signal from the outside, drives (ON/OFF) the high voltage generating means 260 for plasma generation, and performs operations such as switching the power supply unit. Further, it transmits the remaining electric power of the storage battery of the power supply unit, the detection result of the ozone detection means, and the drive state of the plasma generation means to the external control means.
　制御手段２００は、オゾン検出手段３００の検出結果や、通信手段４００を介して得られた処理雰囲気の状態（例えば、他の場所のオゾン濃度）に基づき、自ら判断して、高電圧発生手段２６０や送風手段２２１の駆動を制御することも可能である。
　また、制御手段２００に、不図示の操作手段を接続し、例えば、制御手段が有する複数の制御モード（省エネ運転モード、プラズマ発生手段を制御するオゾン濃度の設定、オゾン検出手段の選択等）を切換えたり、不図示の表示手段（液晶表示装置、ＬＥＤセグメント表示手段、音声手段等）を接続し、プラズマ発生装置の動作状態を表示させるように構成しても良い。 The control means 200 determines by itself based on the detection result of the ozone detection means 300 and the state of the processing atmosphere obtained via the communication means 400 (for example, the ozone concentration at another location), and the high voltage generation means 260 It is also possible to control the driving of air blowing means 221 .
Further, an operation means (not shown) is connected to the control means 200, and, for example, a plurality of control modes (energy-saving operation mode, ozone concentration setting for controlling the plasma generation means, selection of the ozone detection means, etc.) possessed by the control means can be selected. It may be configured to display the operating state of the plasma generator by switching or connecting display means (not shown) (liquid crystal display device, LED segment display means, audio means, etc.).
　図９は保管設備６０内に、パレット１を配置した状態を示しており、保管設備６０内の処理雰囲気を最適に設定する管理方法を説明する図である。各パレット１には、プラズマ発生装置２Ａ～２Ｄが設けられている。また、オゾン検出手段３００Ａと、３００Ｂは、プラズマ発生装置２Ａ、２Ｂに接続して配置され、オゾン検出手段３００Ｅは、プラズマ発生装置２Ｃ，２Ｄとは独立して配置されている。さらに、オゾン検出手段３００Ｆはパレット１の外部で、例えば、保管設備６０の壁面等に設置されている。本発明において「空間内に配置されたオゾンセンサ」とは、オゾン検出手段３００Ｆのみを意味するのではなく、パレットに組み込まれたオゾン検出手段（３００Ａ，３００Ｂ,３００Ｅ）も含む概念である。 FIG. 9 shows a state in which the pallets 1 are arranged in the storage facility 60, and is a diagram for explaining a management method for optimally setting the processing atmosphere in the storage facility 60. FIG. Each pallet 1 is provided with plasma generators 2A to 2D. The ozone detection means 300A and 300B are connected to the plasma generators 2A and 2B, and the ozone detection means 300E is arranged independently of the plasma generators 2C and 2D. Further, the ozone detection means 300F is installed outside the pallet 1, for example, on the wall surface of the storage facility 60 or the like. In the present invention, the "ozone sensor arranged in space" does not mean only the ozone detection means 300F, but is a concept including the ozone detection means (300A, 300B, 300E) incorporated in the pallet.
　上述したようにプラズマ発生装置２Ａ～２Ｄに組み込まれている制御手段を用いて、各プラズマ発生装置を自律的に制御することも可能であるが、ここでは外部制御手段ＣＵを用いて、複数のプラズマ発生装置を連動させて処理雰囲気を制御する管理方法を説明する。なお、プラズマ発生装置内にある制御手段の一部が、この外部制御手段の機能を担うように構成することも可能である。 It is also possible to autonomously control each plasma generator using the control means incorporated in the plasma generators 2A to 2D as described above, but here, using the external control means CU, a plurality of A management method for controlling the processing atmosphere by interlocking the plasma generators will be described. It is also possible to configure a part of the control means in the plasma generator to serve the function of the external control means.
　オゾン検出手段（３００Ａ～３００Ｆ）の検出結果を外部制御手段ＣＵに集め、例えば、オゾンガス濃度を０．１ｐｐｍ～５００ｐｐｍに制御する。この数値範囲で最適値を設定し、オゾン検出手段の数値がその値になるように、プラズマ発生装置を選択的に駆動させる。 　The detection results of the ozone detection means (300A to 300F) are collected in the external control means CU, and the ozone gas concentration is controlled to, for example, 0.1 ppm to 500 ppm. An optimum value is set within this numerical range, and the plasma generator is selectively driven so that the numerical value of the ozone detecting means becomes that value.
　保管設備６０内の全体を最適な処理雰囲気にする際には、主にオゾン検出手段３００Ｆの検出値を観察しながら、各プラズマ発生装置２Ａ～２Ｄを選択的に駆動する。また、その際に、オゾン検出手段（３００Ａ，３００Ｂ，３００Ｅ）の検出値が５００ｐｐｍを大きく超える場合には、青果物等の食料品に与えるダメージも危惧されるため、このような検出値を検出したパレット１においては、プラズマ発生装置の駆動を停止する。 When the entire inside of the storage facility 60 is to have an optimum processing atmosphere, the plasma generators 2A to 2D are selectively driven while mainly observing the detection value of the ozone detection means 300F. Also, at that time, if the detected value of the ozone detection means (300A, 300B, 300E) greatly exceeds 500 ppm, there is a fear of damaging foodstuffs such as fruits and vegetables. In 1, the driving of the plasma generator is stopped.
　保管設備６０内でパレット１が置かれた局所的な空間の処理雰囲気を制御する場合には、オゾン検出手段（３００Ａ，３００Ｂ，３００Ｅ）を使用する。特に、プラズマ発生装置の近傍に配置されたオゾン検出手段は、プラズマ発生装置の動作の影響を受けやすい。このため、オゾン検出手段３００Ｅの検出値に基づき、他のパレットのプラズマ発生装置（２Ａ，２Ｂ）を駆動制御するように構成することも可能である。各パレットのプラズマ発生装置を選択的に駆動させる際にも、同様に、他のパレットのオゾン検出手段の結果を参考にするように構成しても良い。 When controlling the treatment atmosphere in the local space where the pallet 1 is placed within the storage facility 60, the ozone detection means (300A, 300B, 300E) are used. In particular, the ozone detection means arranged in the vicinity of the plasma generator are likely to be affected by the operation of the plasma generator. For this reason, it is also possible to drive and control the plasma generators (2A, 2B) of other pallets based on the detected value of the ozone detection means 300E. Similarly, when selectively driving the plasma generators of each palette, the results of the ozone detection means of other palettes may be used as a reference.
　上記説明では、プラズマによる殺菌等について説明したが、保管設備には、必要に応じて、特許文献１又は２のような照明を用いる方法や、特許文献３のように温度制御する方法などを組み合わせて用いることも可能である。 In the above description, plasma sterilization and the like are explained, but for storage equipment, if necessary, a method using lighting as in Patent Document 1 or 2, a method of temperature control as in Patent Document 3, etc. are combined. It is also possible to use
　以上説明したように、本発明によれば、食料品の鮮度維持効果が高く、多様なサイズの保管・運搬設備にも柔軟に対応することが可能なパレット及びパレットを使用した食料品の管理方法を提供することが可能となる。 INDUSTRIAL APPLICABILITY As described above, according to the present invention, a pallet and a food management method using a pallet are highly effective in maintaining the freshness of food and can flexibly cope with storage and transportation facilities of various sizes. can be provided.
　１　　パレット
　１１　上面デッキプレート
　１１ａ　青果物等の載置面
　１１ｂ　載置面に対する反対面
　１２　下面デッキプレート
　１３　隅桁部
　１４　中間桁部
　１５　空間（上面デッキプレートと下面デッキプレートの間）
　１６　隙間（隅桁部と中間桁部の間）
　２　プラズマ発生装置
　２０　プラズマ発生手段
　２６　高電圧発生手段
　２７　電源ユニット
　３　フォーク差込口
　５　載置物
　６　保管設備 1 pallet 11 upper deck plate 11a mounting surface for fruits and vegetables 11b surface opposite to the mounting surface 12 lower deck plate 13 corner girder 14 intermediate girder 15 space (between upper deck plate and lower deck plate)
16 Gap (between corner girder and intermediate girder)
2 Plasma Generator 20 Plasma Generating Means 26 High Voltage Generating Means 27 Power Supply Unit 3 Fork Insertion Port 5 Placement 6 Storage Facility

Claims (8)

  1. 　食料品を載置するパレットにおいて、
    　該パレットの一部にプラズマ発生装置を備えたことを特徴とするパレット。     In a pallet on which foodstuffs are placed,
    A pallet, characterized in that a part of the pallet is equipped with a plasma generator.
  2. 　請求項１に記載のパレットにおいて、該プラズマ発生装置は、電力を供給する電源ユニット、供給された電力の一部を使用して高電圧を発生する高電圧発生手段、該高電圧発生手段から供給される高電圧を用いてプラズマを発生するプラズマ発生手段を有することを特徴とするパレット。 2. The pallet according to claim 1, wherein the plasma generator comprises a power supply unit for supplying power, high voltage generating means for generating a high voltage using part of the supplied power, and power supplied from the high voltage generating means. A pallet characterized by having a plasma generating means for generating plasma using a high voltage applied to the pallet.
  3. 　請求項２に記載のパレットにおいて、該電源ユニットは、蓄電池又は外部電源への接続手段のいずれかを備えることを特徴とするパレット。 A pallet according to claim 2, characterized in that said power supply unit comprises either a storage battery or connection means to an external power supply.
  4. 　請求項１乃至３のいずれかに記載のパレットにおいて、該プラズマ発生装置は、該プラズマ発生手段で発生されたプラズマに接触した気体を送風する送風手段を有することを特徴とするパレット。 The pallet according to any one of claims 1 to 3, wherein the plasma generator has air blowing means for blowing gas in contact with the plasma generated by the plasma generating means.
  5. 　請求項１乃至４のいずれかに記載のパレットにおいて、該パレットの一部にオゾン検出手段を備えたこと特徴とするパレット。 The pallet according to any one of claims 1 to 4, characterized in that ozone detecting means is provided in a part of the pallet.
  6. 　請求項１乃至５のいずれかに記載のパレットにおいて、該プラズマ発生装置は、該プラズマ発生装置の駆動を制御する制御手段と、該制御手段と外部制御手段との間で通信を行う通信手段を有することを特徴とするパレット。 6. The pallet according to claim 1, wherein the plasma generator comprises control means for controlling driving of the plasma generator, and communication means for communicating between the control means and external control means. A pallet characterized by having:
  7. 　請求項１乃至６に記載のパレットの該プラズマ発生装置を用いて、該パレットが収容されている空間内のオゾン濃度を調整することを特徴とする食料品の管理方法。 A method for managing foodstuffs, wherein the plasma generator for the pallets according to claims 1 to 6 is used to adjust the ozone concentration in the space in which the pallets are accommodated.
  8. 　請求項７に記載の食料品の管理方法において、該空間内に配置されたオゾンセンサと、該オゾン検出手段が検知するオゾン濃度に基づき、該パレットの該プラズマ発生装置を駆動制御することを特徴とする食料品の管理方法。 8. The food management method according to claim 7, wherein the plasma generator of the pallet is driven and controlled based on the ozone concentration detected by the ozone sensor and the ozone detection means arranged in the space. and food management methods.
PCT/JP2022/017559 2021-04-12 2022-04-12 Pallet and foodstuff management method using pallet WO2022220230A1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009090363A1 (en) * 2008-01-16 2009-07-23 Biofresh Limited Portable apparatus for ozone treatment
CN103130191A (en) * 2013-03-25 2013-06-05 北京乾润开元环保科技有限公司 Ozone generator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009090363A1 (en) * 2008-01-16 2009-07-23 Biofresh Limited Portable apparatus for ozone treatment
CN103130191A (en) * 2013-03-25 2013-06-05 北京乾润开元环保科技有限公司 Ozone generator

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