JPH1033112A - Freshness maintenance and device therefor - Google Patents
Freshness maintenance and device thereforInfo
- Publication number
- JPH1033112A JPH1033112A JP21211296A JP21211296A JPH1033112A JP H1033112 A JPH1033112 A JP H1033112A JP 21211296 A JP21211296 A JP 21211296A JP 21211296 A JP21211296 A JP 21211296A JP H1033112 A JPH1033112 A JP H1033112A
- Authority
- JP
- Japan
- Prior art keywords
- photocatalyst
- freshness
- aging
- porous body
- plant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Storage Of Fruits Or Vegetables (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Storage Of Harvested Produce (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、光触媒を用い光を
照射することにより、冷倉庫内の農産物や花弁等の植物
体から発生する老化促進ガスのエチレン等を効率よく分
解し除去する鮮度保持方法及びこのための鮮度保持装置
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a freshness preserving method for efficiently decomposing and removing ethylene and the like of an aging promoting gas generated from plants such as agricultural products and petals in a cold warehouse by irradiating light using a photocatalyst. The present invention relates to a method and a freshness preserving device therefor.
【０００２】[0002]
【従来の技術】冷倉庫内の農産物や花弁等の植物体から
発生するエチレンやアルデヒドは、追熱、老化、変色等
を促進することが知られている。これら老化促進ガスを
除去する方法としては、活性炭などの吸着材を用いる方
法、白金系や酸化マンガン系などの酸化分解触媒を用い
る方法、或いは、オゾンを用いる方法などが知られてい
る。また、光触媒を用いる方法としては、特開平３ー２
２８６３９号に紫外線灯と光触媒の組み合わせによる方
法が開示されている。2. Description of the Related Art It is known that ethylene and aldehyde generated from plants such as agricultural products and petals in a cold warehouse promote reheating, aging, discoloration and the like. Known methods for removing these aging-promoting gases include a method using an adsorbent such as activated carbon, a method using an oxidative decomposition catalyst such as a platinum-based or manganese oxide-based method, and a method using ozone. As a method using a photocatalyst, Japanese Patent Application Laid-Open
No. 28639 discloses a method using a combination of an ultraviolet lamp and a photocatalyst.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、前記吸
着材を用いる方法では、吸着の飽和があるため、吸着材
を交換したり洗浄したりするなどの手間がかかってい
た。また、酸化分解触媒を用いる方法では、分解反応を
進行させるために熱を加える必要がある。また、オゾン
を用いる方法では、人体に悪影響を及ぼすオゾンを漏洩
する危険が伴うという問題があった。また、光触媒を用
いる方法では、老化促進ガスの分解反応は光触媒の表面
でのみ進行するため、分解速度が小さく効率が悪いとい
った欠点を有していた。本発明は、これら従来技術の欠
点を解消し、冷倉庫内の農産物や花弁から発生する老化
促進ガスを速やかに、効率よく分解する方法と装置を提
供することを目的としている。However, in the method using the adsorbent, since the adsorption is saturated, it has been troublesome to replace the adsorbent or clean the adsorbent. In the method using an oxidative decomposition catalyst, it is necessary to apply heat in order to make the decomposition reaction proceed. In addition, the method using ozone has a problem in that there is a risk of leaking ozone that has an adverse effect on the human body. Further, the method using a photocatalyst has a disadvantage that the decomposition reaction of the aging-promoting gas proceeds only on the surface of the photocatalyst, so that the decomposition rate is low and the efficiency is low. An object of the present invention is to provide a method and an apparatus for solving the above-mentioned drawbacks of the prior art and for quickly and efficiently decomposing an aging-promoting gas generated from agricultural products and petals in a cold warehouse.
【０００４】[0004]
【課題を解決するための手段】本発明者等は、前記欠点
を解決するため、鋭意検討の結果、老化促進ガスを含む
気体を光触媒を担持した多孔体に接触させつつ通過させ
ることにより前記老化促進ガスの分解速度が向上するこ
とを見いだし、本発明を完成させた。即ち、本発明の鮮
度保持方法は、農産物や花弁等の植物体から発生する老
化促進ガスを光触媒で分解する方法であって、老化促進
ガスを含む気体を、前記気体を通過させる流路内に配置
される光触媒を担持した多孔体内を光照射しつつ通過さ
せるようにしたことを特徴とする。また、請求項２記載
の鮮度保持方法は、前記多孔体が織布であることを特徴
とする。また、請求項３記載の鮮度保持方法は、前記光
触媒が酸化チタンであることを特徴とする。また、請求
項４記載の鮮度保持方法は、前記酸化チタン光触媒をＴ
ｉ−Ｏ−Ｓｉ結合層を介して酸化珪素を含む無機質繊維
からなる織布に担持させたものであることを特徴とす
る。また、本発明の鮮度保持装置は、農産物及び花弁等
の植物体の鮮度保持装置であって、前記植物体の発生す
る老化促進ガスを含む気体を通過させる流路内に光触媒
を担持した多孔体を前記気体が通過するように配置する
と共に、該光触媒を担持した多孔体に光を照射するため
の光源を備えたことを特徴とする。に光を照射するため
の光源を備えたことを特徴とする。また、請求項６記載
の鮮度保持装置は、前記植物体の収容空間内に冷気を循
環供給する循環路を前記流路とすることを特徴とする。
また、請求項７記載の鮮度保持装置は、前記植物体の収
容空間内に設置自在の装置本体に、前記収容空間内の冷
気を循環させる循環路を設け、この循環路を前記流路と
することを特徴とする。また、請求項８記載の鮮度保持
装置は、前記多孔体が織布であることを特徴とする。ま
た、請求項９記載の鮮度保持装置は、前記光触媒が酸化
チタンであることを特徴とする。また、請求項１０記載
の鮮度保持装置は、前記酸化チタン光触媒をＴｉ−Ｏ−
Ｓｉ結合層を介して酸化珪素を含む無機質繊維からなる
織布に担持させたものであることを特徴とする。Means for Solving the Problems The inventors of the present invention have conducted intensive studies to solve the above-mentioned drawbacks. As a result, the aging was carried out by passing a gas containing an aging-promoting gas into contact with a porous body carrying a photocatalyst. The present inventors have found that the decomposition rate of the promoting gas is improved, and completed the present invention. That is, the freshness preservation method of the present invention is a method of decomposing an aging-promoting gas generated from a plant such as an agricultural product or a petal with a photocatalyst. It is characterized in that it is made to pass while irradiating light through a porous body carrying a photocatalyst to be arranged. A freshness maintaining method according to a second aspect is characterized in that the porous body is a woven fabric. The freshness maintaining method according to claim 3 is characterized in that the photocatalyst is titanium oxide. In the freshness maintaining method according to the fourth aspect, the titanium oxide photocatalyst may be
It is supported on a woven fabric made of inorganic fibers containing silicon oxide via an i-O-Si bonding layer. Further, the freshness holding device of the present invention is a freshness holding device for plants such as agricultural products and petals, wherein a porous body carrying a photocatalyst in a flow passage through which a gas containing an aging-promoting gas generated by the plants passes. And a light source for irradiating the porous body supporting the photocatalyst with light. And a light source for irradiating light to the light source. The freshness holding device according to claim 6 is characterized in that a circulation path for circulating and supplying cool air into the accommodation space for the plant is used as the flow path.
Further, in the freshness maintaining device according to claim 7, a circulation path for circulating cool air in the accommodation space is provided in an apparatus main body that can be installed in the accommodation space for the plant, and this circulation path is used as the flow path. It is characterized by the following. Further, the freshness maintaining device according to claim 8 is characterized in that the porous body is a woven fabric. Further, the freshness maintaining device according to claim 9 is characterized in that the photocatalyst is titanium oxide. Further, the freshness maintaining device according to claim 10, wherein the titanium oxide photocatalyst is Ti-O-
It is supported on a woven fabric made of inorganic fibers containing silicon oxide via a Si bonding layer.
【０００５】[0005]
【発明の実施の形態】前記多孔体に担持させる光触媒と
しては、酸化チタンや酸化亜鉛など数多くの触媒が提案
されているが、分解効率や安全性、安定性の点から酸化
チタンを用いるのが好ましい。また、該酸化チタンに白
金、パラジウム、ロジウム、金、銀、、銅などの貴金
属、或いは、それらの貴金属塩類を担持させてもよい。DESCRIPTION OF THE PREFERRED EMBODIMENTS As a photocatalyst to be supported on the porous body, many catalysts such as titanium oxide and zinc oxide have been proposed, but titanium oxide is preferred in view of decomposition efficiency, safety and stability. preferable. Further, a precious metal such as platinum, palladium, rhodium, gold, silver, or copper, or a precious metal salt thereof may be supported on the titanium oxide.
【０００６】また、光触媒を担持する多孔体としては、
棒状体、板状体、シート状など、様々な形態のものがあ
り、老化促進ガスを含む気体を通過させることができれ
ばどのようなものでも構わないが、取り扱い性、強度、
光透過性、通気性等の点から織布を用いるのが好まし
い。さらに、織布の中でも、前記酸化チタンと強固な結
合（ＴｉーＯーＳｉ結合）を形成することができ、か
つ、耐薬品性、耐光性に優れた酸化珪素を含む無機質繊
維で構成された織布が好ましい。ここでいう、酸化珪素
を含む無機質繊維とは、例えば、石英ガラス、高石英ガ
ラス、Ｅガラス、Ｃガラス、Ｓガラス、Ａガラス等、光
を透すならばどのような組成でも構わないが、経済性か
らＥガラス繊維が好ましい。[0006] Further, as a porous body carrying a photocatalyst,
There are various forms such as a rod-shaped body, a plate-shaped body, and a sheet-shaped body, and any structure can be used as long as a gas including an aging-promoting gas can be passed.
It is preferable to use a woven fabric in terms of light transmittance and air permeability. Further, even in the woven fabric, the inorganic fiber containing silicon oxide which can form a strong bond (Ti-O-Si bond) with the titanium oxide and is excellent in chemical resistance and light resistance is formed. Woven fabrics are preferred. Here, the inorganic fiber containing silicon oxide may be any composition as long as it transmits light, such as quartz glass, high quartz glass, E glass, C glass, S glass, and A glass. E glass fiber is preferred from the viewpoint of economy.
【０００７】また、織布の目付け（ｇ／ｍ2 ）も、いく
らのものでも構わないが、取り扱い性や分解効率の関係
から、通常１００〜９００ｇ／ｍ2 のものを用いる。ま
た、構成する無機質繊維の平均繊維径は特に限定される
ものではないが、製造可能でしかも気体との接触面積を
確保して効率を得るため５〜２０μｍが好ましい。さら
に、織布の打ち込み密度、厚さ、引っ張り強度も特に限
定されるものではないが、気体の流れに対する強度の観
点から、打ち込み密度は各々タテ、ヨコ共に１０〜８０
本／２５ｍｍ、厚さは０．０１〜２．０ｍｍ、引っ張り
強度は５ｋｇｆ／２０ｍｍ巾以上が好ましい。Further, the woven fabric of basis weight (g / m 2) also, but it may be of much, from the relationship between the handling properties and decomposition efficiency, used as a normal 100~900g / m 2. The average fiber diameter of the constituent inorganic fibers is not particularly limited, but is preferably 5 to 20 μm in order to be able to manufacture and secure the contact area with gas to obtain efficiency. Furthermore, the driving density, thickness, and tensile strength of the woven fabric are not particularly limited, but from the viewpoint of the strength against the flow of gas, the driving density is 10 to 80 in both the vertical and horizontal directions.
It is preferable that the number of pieces / 25 mm, the thickness is 0.01 to 2.0 mm, and the tensile strength is 5 kgf / 20 mm width or more.
【０００８】また、光源は、低圧水銀灯や殺菌灯あるい
はブラックライト蛍光灯等を用いるとよいが、反応速度
を考慮しなければ、一般蛍光灯でも構わない。As the light source, a low-pressure mercury lamp, a germicidal lamp, a black light fluorescent lamp, or the like may be used, but a general fluorescent lamp may be used as long as the reaction speed is not taken into consideration.
【０００９】本発明の鮮度保持方法では、光触媒を多孔
体に担持させ、且つ、老化促進ガスを含む気体をこの多
孔体内に導くようにしているため、老化促進ガスを含む
空気が光触媒と接する機会が多くなり、分解速度が大き
く効率がよい。In the method for maintaining freshness of the present invention, the photocatalyst is supported on the porous body and the gas containing the aging promoting gas is introduced into the porous body, so that the air containing the aging promoting gas comes into contact with the photocatalyst. And the decomposition rate is large and efficient.
【００１０】前記光触媒を担持した多孔体は、農産物や
花弁等の植物体の発生する老化促進ガスを通過させる流
路内に配置される必要があるが、前記植物体の収容空間
内に冷気を循環供給する循環路を前記流路とすることが
好ましい。また、農産物や花弁等の植物体の収容空間内
に設置自在の装置本体に、前記収容空間内の冷気を循環
させる循環路を設け、この循環路を前記流路とすれば、
この装置を冷倉庫の所定位置に設置するだけで、既存の
冷倉庫においても簡単に鮮度保持を行える。The porous body supporting the photocatalyst needs to be arranged in a flow path through which an aging-promoting gas generated by plants such as agricultural products and petals passes. It is preferable that a circulation path for circulating supply be the flow path. Moreover, if a circulation path for circulating cool air in the accommodation space is provided in the main body of the apparatus that can be freely installed in the accommodation space for plants such as agricultural products and petals, and this circulation path is the flow path,
Simply installing this device at a predetermined position in a cold warehouse can easily maintain freshness even in an existing cold warehouse.
【００１１】[0011]
【実施例】以下、本発明の実施例を図面に基づき説明す
る。図１は、本発明の一実施例を示すもので、冷倉庫内
に冷気を循環供給する循環路内に光触媒を担持した多孔
体を配置するようにした例を示すものである。図中１は
冷倉庫を示すもので、内部が農作物３０の収容空間２と
され、この収容空間２内に棚３が設置され、この棚３上
に農作物３０が置かれている。前記収容空間２の天井部
４には冷気を供給するサプライダクト５に連通される冷
気の吹き出し口６が設けられ、また、収容空間２の床部
７には農作物３０の発生した老化促進ガスを含む空気を
収容空間２から排出するリターンダクト８に連通される
吸い込み口９が設けられている。前記サプライダクト５
とリターンダクト８は室外機１０を介して互いに連通さ
れており、この室外機１０内には空気を冷却する冷却器
１１と冷気を循環させるファン１２と共に光触媒を担持
した多孔体１３が配置されている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of the present invention, in which a porous body carrying a photocatalyst is disposed in a circulation path for circulating cool air in a cold warehouse. In the figure, reference numeral 1 denotes a cold warehouse, in which the inside is a storage space 2 for a crop 30, a shelf 3 is installed in the storage space 2, and the crop 30 is placed on the shelf 3. A cooling air outlet 6 communicating with a supply duct 5 for supplying cool air is provided on a ceiling 4 of the accommodation space 2, and an aging-promoting gas generated from the crop 30 is supplied to a floor 7 of the accommodation space 2. A suction port 9 is provided, which communicates with a return duct 8 that discharges the contained air from the storage space 2. The supply duct 5
And the return duct 8 are communicated with each other via an outdoor unit 10. Inside the outdoor unit 10, a cooler 11 for cooling air, a fan 12 for circulating cool air, and a porous body 13 carrying a photocatalyst are arranged. I have.
【００１２】尚、前記多孔体１３は、図２に示すよう
に、老化促進ガスを含む気体を通過させるようした流路
１４内に光源１５と共に配置され、該光源１５により光
照射され、光触媒反応が促進されて老化促進ガスを分解
するようになっている。As shown in FIG. 2, the porous body 13 is disposed together with a light source 15 in a flow path 14 through which a gas containing an aging-promoting gas passes, and is irradiated with light by the light source 15 to cause a photocatalytic reaction. Is promoted to decompose the aging-promoting gas.
【００１３】図示のものでは、吹き出し口６から供給さ
れる冷気に農作物３０が発生する老化促進ガスが混入す
るが、この老化促進ガスを含む気体は吸い込み口９とリ
ターンダクト８を介して室外器１０に導かれ、この室外
器１０に配置される多孔体１３に担持される光触媒によ
り老化促進ガスが分解され、このような老化促進ガスを
分解除去された後の冷気のみが、サプライダクト５を介
して、吹き出し口６から収容空間２内に戻されることに
なる。In the drawing, the aging-promoting gas generated by the crop 30 is mixed with the cool air supplied from the outlet 6, and the gas containing the aging-promoting gas is supplied to the outdoor unit through the suction port 9 and the return duct 8. 10, the aging-promoting gas is decomposed by the photocatalyst supported by the porous body 13 disposed in the outdoor unit 10, and only the cool air after the aging-promoting gas is decomposed and removed passes through the supply duct 5. Through the outlet 6, it is returned into the storage space 2.
【００１４】図３は、他実施例を示すもので、農産物の
収容空間内に設置自在の装置本体に、前記収容空間内の
冷気を循環させる循環路を設け、この循環路内に光触媒
を担持した多孔体を配置するようにした例を示すもので
ある。図中１は冷倉庫を示し、内部が農作物３０の収容
空間２とされ、この収容空間２内に棚３が設置され、こ
の棚３上に農作物３０が置かれている。そしてこの収容
空間２の天井部４近傍には冷却器１６が設けられ、収容
空間２内に冷気を供給するようになっている。尚、図中
１７は配管１８を介して冷却器１６に接続されている室
外機を示す。FIG. 3 shows another embodiment, in which a circulation path for circulating cool air in the accommodation space is provided in an apparatus main body which can be installed in the accommodation space for agricultural products, and a photocatalyst is carried in the circulation path. This is an example in which a porous body is arranged. In the figure, reference numeral 1 denotes a cold warehouse, in which the interior is an accommodation space 2 for a crop 30, a shelf 3 is installed in the accommodation space 2, and the crop 30 is placed on the shelf 3. A cooler 16 is provided in the vicinity of the ceiling portion 4 of the housing space 2 to supply cool air into the housing space 2. In the figure, reference numeral 17 denotes an outdoor unit connected to the cooler 16 via a pipe 18.
【００１５】また、この収容空間内２には、本実施例に
よる、鮮度保持装置２１が設置されている。この鮮度保
持装置２１はその装置本体２２の底部に設けられたキャ
スター２３によって、収容空間２内に移動設置自在に構
成され、装置本体２２の底部に吸い込み口２４を備える
と共に天井部に排気口２５が設けられ、この排気口２５
の近傍に設けられたファン２６によって、収容空間２内
に発生する老化促進ガスと共に冷気を内部に循環通過さ
せ、この内部に設けられた多孔体１３に担持された光触
媒により老化促進ガスを分解し、清浄な冷気のみを収容
空間２内に戻し、循環させるようにした。In the accommodation space 2, a freshness holding device 21 according to the present embodiment is installed. The freshness maintaining device 21 is configured to be movable and installable in the accommodation space 2 by casters 23 provided at the bottom of the device main body 22. The freshness maintaining device 21 is provided with a suction port 24 at the bottom of the device main body 22 and an exhaust port 25 at the ceiling. Is provided, and this exhaust port 25 is provided.
Is circulated through the fan together with the aging-promoting gas generated in the storage space 2 by the fan 26 provided in the vicinity of the storage space 2, and the aging-promoting gas is decomposed by the photocatalyst supported on the porous body 13 provided therein. Only the clean cold air was returned to the accommodation space 2 and circulated.
【００１６】本実施例の場合も、前記多孔体１３は、図
２に示すように、老化促進ガスを含む気体を通過させる
ようした流路１４内に光源１５と共に配置され、該光源
１５により光照射され、光触媒反応が促進されて老化促
進ガスを分解するようになっている。Also in this embodiment, as shown in FIG. 2, the porous body 13 is disposed together with a light source 15 in a flow path 14 through which a gas containing an aging promoting gas passes. Irradiation promotes the photocatalytic reaction to decompose the aging-promoting gas.
【００１７】次に、前記図１に示す装置の使用例に即し
て、野菜２ｋｇ、果物２ｋｇ、を冷倉庫内に収容した場
合の具体的な実施例を比較例と共に説明する。 （実施例１）まず、実施例１として、流路１４内に光触
媒（酸化チタン）を３重量％担持したＥガラス繊維製織
布（多孔体）５０ｇを配置し、ファンを駆動して通過速
度１リットル／分で冷倉庫内の老化促進ガスを含む空気
を循環通過させた。また、光源１５として配管１４内の
多孔体１３の近傍に松下電器産業（株）製殺菌灯ＧＬ１
０を１本配置した。このとき、ファンの駆動前では収容
空間内のエチレン濃度は５０ｐｐｍであったが、ファン
駆動２時間経過後にはエチレン濃度は１ｐｐｍにまで低
下していた。Next, a concrete example in which 2 kg of vegetables and 2 kg of fruits are accommodated in a cold warehouse will be described along with a comparative example in accordance with an example of use of the apparatus shown in FIG. (Example 1) First, as Example 1, 50 g of an E glass fiber woven fabric (porous body) supporting 3% by weight of a photocatalyst (titanium oxide) was arranged in the flow path 14, and the fan was driven to drive the passage speed. The air containing the aging-promoting gas in the cold warehouse was circulated at 1 liter / minute. In addition, a germicidal lamp GL1 manufactured by Matsushita Electric Industrial Co., Ltd.
0 is arranged. At this time, the ethylene concentration in the housing space was 50 ppm before the fan was driven, but after 2 hours from the fan driving, the ethylene concentration was reduced to 1 ppm.
【００１８】（比較例１）次に、比較例として、光触媒
を担持させる基材として、Ｅガラス繊維製織布を、Ｅガ
ラス板に変更した以外は、前記実施例１と同様の方法で
老化促進ガスを含む気体を処理した。即ち、老化促進ガ
スを含む気体は、基材の表面にのみ接触して通過してい
くようにした。このとき、ファンの駆動前では収容空間
内のエチレン濃度は５０ｐｐｍであり、ファン駆動２時
間経過後にはエチレン濃度は４０ｐｐｍにまでしか低下
しなかった。このように、前記実施例１及び比較例１よ
り、多孔体に担持させた光触媒を用い、この多孔体内に
老化促進ガがスを含む気体を通過させることにより、冷
倉庫内の老化促進ガスを効率よく分解できることが確認
できた。Comparative Example 1 Next, as a comparative example, aging was performed in the same manner as in Example 1 except that the woven fabric made of E glass fiber was changed to an E glass plate as a substrate for supporting a photocatalyst. The gas containing the facilitating gas was treated. That is, the gas containing the aging-promoting gas was allowed to pass only in contact with the surface of the substrate. At this time, the ethylene concentration in the storage space was 50 ppm before the fan was driven, and the ethylene concentration was reduced to only 40 ppm two hours after the fan was driven. As described above, from Example 1 and Comparative Example 1, by using a photocatalyst supported on a porous body and allowing the gas containing aging to pass through the porous body, the aging promoting gas in the cold warehouse can be removed. It was confirmed that it can be efficiently decomposed.
【００１９】[0019]
【発明の効果】以上、説明したとおり、本発明による農
産物及び花弁等の植物体の鮮度保持方法及び鮮度保持装
置は、従来法と異なり、老化促進ガスを含む気体が光触
媒と接触する機会が大きいため、分解速度が大きく、高
効率であるといった効果を有する。As described above, the method and apparatus for maintaining the freshness of plants such as agricultural products and petals according to the present invention, unlike the conventional methods, have a great opportunity for the gas containing the aging-promoting gas to come into contact with the photocatalyst. Therefore, there is an effect that the decomposition speed is high and the efficiency is high.
【図１】本発明鮮度保持装置の一実施例を示す説明線図FIG. 1 is an explanatory diagram showing an embodiment of a freshness holding device of the present invention.
【図２】前記装置の光触媒を担持した多孔体の流路内の
配置状態を示す線図FIG. 2 is a diagram showing an arrangement state of a porous body supporting a photocatalyst in the flow channel of the apparatus.
【図３】本発明鮮度保持装置の他実施例を示す説明線図FIG. 3 is an explanatory diagram showing another embodiment of the freshness maintaining device of the present invention.
１ 冷倉庫 ２ 収容空間 ３ 棚 ５ サプライダクト ８ リターンダクト １０ 室外機 １１ 冷却器 １２ ファン １３ 光触媒を担持した多孔体 １４ 流路 １５ 光源 １６ 冷却器 １７ 室外機 ２１ 鮮度保持装置 ３０ 農作物 DESCRIPTION OF SYMBOLS 1 Cold warehouse 2 Storage space 3 Shelf 5 Supply duct 8 Return duct 10 Outdoor unit 11 Cooler 12 Fan 13 Porous body which supported photocatalyst 14 Channel 15 Light source 16 Cooler 17 Outdoor unit 21 Freshness maintenance device 30 Agricultural crop
Claims (10)
化促進ガスを光触媒で分解する方法であって、老化促進
ガスを含む気体を、前記気体を通過させる流路内に配置
される光触媒を担持した多孔体内を光照射しつつ通過さ
せるようにしたことを特徴とする鮮度保持方法。1. A method for decomposing an aging-promoting gas generated from a plant such as an agricultural product or a petal with a photocatalyst, wherein a photocatalyst disposed in a flow path through which the gas containing the aging-promoting gas passes is provided. A method for maintaining freshness, characterized in that light is passed through the supported porous body while irradiating light.
る請求項１記載の鮮度保持方法。2. The method according to claim 1, wherein said porous body is a woven fabric.
徴とする請求項１または２記載の鮮度保持方法。3. The method according to claim 1, wherein the photocatalyst is titanium oxide.
して酸化珪素を含む無機質繊維からなる織布に担持させ
たものであることを特徴とする請求項３記載の鮮度保持
方法。4. The method according to claim 3, wherein the photocatalyst is carried on a woven fabric made of inorganic fibers containing silicon oxide via a Ti—O—Si bonding layer.
であって、前記植物体の発生する老化促進ガスを含む気
体を通過させる流路内に光触媒を担持した多孔体を前記
気体が通過するように配置すると共に、該光触媒を担持
した多孔体に光を照射するための光源を備えたことを特
徴とする鮮度保持装置。5. A device for maintaining freshness of a plant such as an agricultural product or a petal, wherein the gas passes through a porous body carrying a photocatalyst in a flow path through which a gas containing an aging-promoting gas generated by the plant is passed. And a light source for irradiating the porous body carrying the photocatalyst with light.
給する循環路を前記流路とすることを特徴とする請求項
５記載の鮮度保持装置。6. The freshness preserving device according to claim 5, wherein a circulation path for circulating and supplying cool air into the accommodation space for the plant body is used as the flow path.
置本体に、前記収容空間内の冷気を循環させる循環路を
設け、この循環路を前記流路とすることを特徴とする請
求項５記載の鮮度保持装置。7. A circulation path for circulating cool air in the accommodation space is provided in an apparatus main body that can be freely installed in the accommodation space for the plant, and the circulation path is used as the passage. 5. The freshness maintaining device according to 5.
る請求項５乃至７の何れかに記載の鮮度保持装置。8. The freshness maintaining device according to claim 5, wherein the porous body is a woven fabric.
徴とする請求項５乃至８の何れかに記載の鮮度保持装
置。9. The freshness maintaining device according to claim 5, wherein the photocatalyst is titanium oxide.
介して酸化珪素を含む無機質繊維からなる織布に担持さ
せたものであることを特徴とする請求項９記載の鮮度保
持装置。10. The freshness preserving device according to claim 9, wherein the photocatalyst is supported on a woven fabric made of inorganic fibers containing silicon oxide via a Ti—O—Si bonding layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21211296A JPH1033112A (en) | 1996-07-23 | 1996-07-23 | Freshness maintenance and device therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21211296A JPH1033112A (en) | 1996-07-23 | 1996-07-23 | Freshness maintenance and device therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1033112A true JPH1033112A (en) | 1998-02-10 |
Family
ID=16617081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21211296A Pending JPH1033112A (en) | 1996-07-23 | 1996-07-23 | Freshness maintenance and device therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1033112A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000218169A (en) * | 1999-01-28 | 2000-08-08 | Nippon Muki Co Ltd | Photocatalytic element and device for treating gas containing organic compound |
| JP2000316373A (en) * | 1999-05-12 | 2000-11-21 | Utopia Kikaku:Kk | Photocatalytic gas decomposition device for ethylene gas genearting from farm product |
| JP2021182902A (en) * | 2020-05-22 | 2021-12-02 | リ, チャン フンLEE, Chang Hoon | Storage system and method of cut flowers |
-
1996
- 1996-07-23 JP JP21211296A patent/JPH1033112A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000218169A (en) * | 1999-01-28 | 2000-08-08 | Nippon Muki Co Ltd | Photocatalytic element and device for treating gas containing organic compound |
| JP2000316373A (en) * | 1999-05-12 | 2000-11-21 | Utopia Kikaku:Kk | Photocatalytic gas decomposition device for ethylene gas genearting from farm product |
| JP2021182902A (en) * | 2020-05-22 | 2021-12-02 | リ, チャン フンLEE, Chang Hoon | Storage system and method of cut flowers |
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