JPH0779585B2 - Fruit storage bag - Google Patents
Fruit storage bagInfo
- Publication number
- JPH0779585B2 JPH0779585B2 JP4295054A JP29505492A JPH0779585B2 JP H0779585 B2 JPH0779585 B2 JP H0779585B2 JP 4295054 A JP4295054 A JP 4295054A JP 29505492 A JP29505492 A JP 29505492A JP H0779585 B2 JPH0779585 B2 JP H0779585B2
- Authority
- JP
- Japan
- Prior art keywords
- storage
- film
- bag
- storage bag
- fruit
- 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.)
- Expired - Lifetime
Links
Description
【０００１】[0001]
【産業上の利用分野】本発明はリンゴ、梨等の果実のCA
(Controlled Atmosphere) 貯蔵用袋及び冷蔵庫貯蔵用袋
に関し、ポリビニルアルコール（以下PVA という）を主
成分とするフィルムを材料とすることによって、果実の
鮮度保持、腐敗率の低下等の効果を出すものである。The present invention relates to CA for fruits such as apples and pears.
(Controlled Atmosphere) Regarding storage bags and refrigerator storage bags, by using a film containing polyvinyl alcohol (hereinafter referred to as PVA) as a main component, it is possible to obtain effects such as keeping fruit freshness and reducing spoilage rate. is there.
【０００２】[0002]
【従来の技術と問題点】従来より、CA貯蔵用袋及び冷蔵
庫貯蔵用袋はポリエチレンフィルムが使用されているが
水蒸気の透湿が少なく、炭酸ガス、酸素ガスの透過が多
いことから袋内部のガス組成を一定に保つことが困難な
ためか、果内変質（果心部褐変、果内褐変）、外観障害
（ヤケ病、ゴム病）が発生しやすく貯蔵・出庫後の果実
の歩留りが悪くなるという欠点があった。また、水蒸気
の透湿量が少ない為、貯蔵時の袋内果実の炭酸同化作用
によって発生する水蒸気が結露し、水が貯まり、腐敗を
促進させることになる。この防止策として吸湿性のある
紙（新聞紙）を敷いているが、作業に手間がかかってお
り腐敗防止効果も小さい。更に、果内変質や、外観障害
の防止策として鮮度保持剤や消石灰での炭酸ガスの吸着
等を試みているが効果は小さく、経費もかかるので問題
である。2. Description of the Related Art Conventionally, polyethylene films have been used for CA storage bags and refrigerator storage bags, but since moisture vapor permeability is low and carbon dioxide and oxygen gas permeation is high, the inside of the bags is Perhaps because it is difficult to keep the gas composition constant, deterioration of the fruit (browning of the fruit core, browning of the fruit) and appearance defects (burn discoloration, rubber disease) are likely to occur, and the yield of the fruit after storage / delivery is poor. There was a drawback that Further, since the moisture vapor transmission rate is small, the water vapor generated by the carbonic acid assimilation action of the fruit in the bag at the time of storage is condensed to accumulate water, which promotes spoilage. As a preventive measure, hygroscopic paper (newspaper) is laid, but the work is troublesome and the effect of preventing decay is small. Furthermore, attempts have been made to adsorb carbon dioxide gas with a freshness-retaining agent or slaked lime as a measure for preventing fruit deterioration and appearance disorder, but this is a problem because the effect is small and the cost is high.
【０００３】本発明者らは、上記の欠点を改良するCA貯
蔵用袋及び冷蔵庫貯蔵用袋の材料につき、鋭意研究を重
ねた結果、PVA フィルムが特に優れていることを見出
し、本発明に到達した。The inventors of the present invention have found that PVA film is particularly excellent as a result of intensive research on materials for CA storage bags and refrigerator storage bags that improve the above-mentioned drawbacks, and arrived at the present invention. did.
【０００４】[0004]
【問題点を解決するための手段】本発明は、主成分がポ
リビニルアルコールのフィルムからなる果実の貯蔵用袋
である。本発明に於いて対象となるPVA フィルムとして
は、ポリ酢酸ビニルをケン化して得られるPVA を溶液流
延法、溶融抽出法等の公知の製膜方法によって製造され
る水溶性フィルムを熱処理あるいは、ホルマール化、ア
セタール化等の耐水性化をして水難溶性もしくは不溶性
化をした、いわゆるビニロンフィルム等が挙げられる。DISCLOSURE OF THE INVENTION The present invention is a fruit storage bag comprising a film of polyvinyl alcohol as a main component. As the PVA film to be used in the present invention, a PVA obtained by saponifying polyvinyl acetate is a water-soluble film produced by a known film forming method such as a solution casting method and a melt extraction method, or A so-called vinylon film or the like, which is made water-insoluble or insoluble by being made water resistant such as formalization or acetalization, may be mentioned.
【０００５】PVA の重合度、及びケン化度については特
に制限はないが、通常重合度500 〜3000好ましくは700
〜2800、ケン化度75モル％以上、好ましくは85モル％以
上のものが、フィルムの強度、耐水性、水蒸気透過性の
点で優れているので好適に使用される。The degree of polymerization of PVA and the degree of saponification are not particularly limited, but the degree of polymerization is usually 500 to 3000, preferably 700.
.About.2800 and a saponification degree of 75 mol% or more, preferably 85 mol% or more are preferably used because they are excellent in film strength, water resistance and water vapor permeability.
【０００６】しかし本発明に於いて対象とするPVA フィ
ルムは上記製造法で製造されるフィルムのみならず、酢
酸ビニルとエチレンとの共重合体のケン化物の如き変性
PVAから得られるフィルム或は更に該フィルムを熱処理
や不溶化処理したフィルム等がいずれも含まれる。However, the PVA film to be used in the present invention is not limited to the film produced by the above-mentioned production method, but is also a modified product such as a saponified product of a copolymer of vinyl acetate and ethylene.
A film obtained from PVA or a film obtained by subjecting the film to heat treatment or insolubilization is included.
【０００７】袋の厚さは、0.02〜0.1 mmのものが使用で
き、一般には0.02〜0.04mmが好ましい。本発明を適用す
るCA貯蔵用袋及び冷蔵庫貯蔵用袋の製袋は、必ずしも通
常行なわれているカマス張りに限定されることなく筒張
り、Ｈ型張り、その他あらゆる方法で造られるものであ
る。本発明のPVA フィルム製の袋をCA貯蔵用袋及び冷蔵
庫貯蔵用袋として使用する時期は、収穫期の任意の時期
でよい。A bag having a thickness of 0.02 to 0.1 mm can be used, and generally 0.02 to 0.04 mm is preferable. The CA storage bag and the refrigerator storage bag to which the present invention is applied are not necessarily limited to the usual ply-covering, but may be formed by a cylinder, an H-shape, or any other method. The PVA film bag of the present invention may be used as a CA storage bag and a refrigerator storage bag at any time during the harvesting period.
【０００８】[0008]
【作用】本発明品が何故果実の鮮度を保持し、腐敗率を
低下させるかは定かではないが、ポリエチレンフィルム
に比較してPVA フィルムの高い透湿性〔JIS Z 0208の恒
温恒湿条件Ｂの方法により、フィルム厚さ0.03mmで3000
〜3400（ｇ／m2・24時間) 程度〕及び低いガス（CO2 、
O2など）透過性が果実に良好に作用するものと考えられ
る。[Function] Although it is not clear why the product of the present invention retains the freshness of fruits and lowers the rotting rate, it has higher moisture permeability of PVA film than that of polyethylene film [in accordance with the constant temperature and humidity condition B of JIS Z 0208]. Depending on the method, the film thickness is 0.03 mm and 3000
~ 3400 (g / m 2 · 24 hours)] and low gas (CO 2 ,
O 2, etc.) permeability is thought to work well in the fruit.
【０００９】[0009]
【実施例】以下、実施例を示して本発明を更に具体的に
説明するが本発明はこれによって限定されるものではな
い。EXAMPLES The present invention will now be described in more detail with reference to examples, but the present invention is not limited thereto.
【００１０】実施例１ CA貯蔵庫による貯蔵試験 厚さ0.03mm巾90cm×長さ100 cmの透明PVA フィルム（デ
ンカビニロンフィルムDF−200 、重合度1,700 、ケン化
度99.55 モル％）製袋品であって底部、側部が完全にシ
ールされた袋を準備した。比較のために従来のポリエチ
レンフィルム0.03mmを準備した。Example 1 Storage test by CA storage container A transparent PVA film (Denka vinylon film DF-200, polymerization degree 1,700, saponification degree 99.55 mol%) having a thickness of 0.03 mm, a width of 90 cm and a length of 100 cm, is a bag product. A bag with a completely sealed bottom and sides was prepared. A conventional polyethylene film 0.03 mm was prepared for comparison.
【００１１】上記２種の袋にリンゴ「ふじ」を１袋当り
30個づつ入れて密封し、それをCA貯蔵庫内に貯蔵して試
験を行なった。供試されたリンゴ「ふじ」は無作意に抜
き取ったものである。又、厚さ0.04mmのデンカビニロン
フィルムについても同様に実施した。上記CA貯蔵庫内
は、温度０〜５℃、湿度90〜95％RH、CO2 濃度２〜３％
及びO2濃度２〜３％に保った。尚、CO2 及びO2濃度それ
ぞれが上記範囲を保つように、大気中でプロパンを燃焼
させた排ガスを冷却してCA貯蔵庫内に供給した。One bag of apple "Fuji" in the above two bags
30 pieces were put and sealed, and it was stored in CA storage and tested. The apple "Fuji" that was tested was randomly selected. Further, the same procedure was performed for a Denka vinylon film having a thickness of 0.04 mm. The temperature inside the CA storage is 0-5 ° C, humidity is 90-95% RH, CO 2 concentration is 2-3%.
And O 2 concentration was kept at 2-3%. In addition, the exhaust gas obtained by burning propane in the atmosphere was cooled and supplied into the CA storage so that the CO 2 and O 2 concentrations were kept within the above ranges.
【００１２】CA貯蔵庫への入庫は、昭和58年11月で最終
出庫は、昭和59年６月21日であった。更に実際的な効果
を確認する為、出庫後20℃の加温処理を１週間行なった
ものについても同時に実施した。The storage in the CA storage was in November 1983, and the final storage was June 21, 1984. Further, in order to confirm the practical effect, heating was carried out at 20 ° C. for 1 week after leaving the warehouse, and the heating treatment was simultaneously performed.
【００１３】出庫後、全量について外観検査及び定性、
定量分析を行なった。これらの検査及び分析は、りんご
試験場研究員が実施した。結果を表１〜４に示す。 （注）袋の品種の記号は次の通りである。 30DF：デンカビニロンフィルム 0.03mm 40DF：デンカビニロンフィルム 0.04mm 30P ：現行ポリエチレンフィルム0.03mmAfter leaving the warehouse, visual inspection and qualitative inspection for all
Quantitative analysis was performed. These inspections and analyzes were conducted by Apple Research Station researchers. The results are shown in Tables 1 to 4. (Note) The symbol of the bag type is as follows. 30DF: Denka vinylon film 0.03mm 40DF: Denka vinylon film 0.04mm 30P: Current polyethylene film 0.03mm
【００１４】[0014]
【表１】 [Table 1]
【００１５】[0015]
【表２】 [Table 2]
【００１６】[0016]
【表３】 [Table 3]
【００１７】[0017]
【表４】 [Table 4]
【００１８】前記表１〜４をまとめて解析すると次の表
５及び表６のとおりとなる。When the above Tables 1 to 4 are collectively analyzed, the following Tables 5 and 6 are obtained.
【００１９】[0019]
【表５】 [Table 5]
【００２０】[0020]
【表６】 [Table 6]
【００２１】実施例２ 冷蔵庫による貯蔵試験 使用した袋、供試りんご「ふじ」及び出庫後の検査、分
析はCA貯蔵庫による貯蔵試験と全く同様の方法で実施し
た。冷蔵庫内の条件は０℃、90〜95％RHである。Example 2 Storage Test in Refrigerator The bag used, the apple "Fuji" to be tested, and the inspection and analysis after shipping were carried out by the same method as the storage test in the CA storage. The conditions in the refrigerator are 0 ° C. and 90 to 95% RH.
【００２２】冷蔵庫への入庫は、昭和58年11月で最終出
庫は、昭和59年６月21日であった。更に実際的な効果を
確認する為、出庫後20℃の加温処理を１週間行なったも
のについても同時に実施した。この結果のまとめを表７
及び表８に示す。The storage in the refrigerator was in November 1983, and the final storage was June 21, 1984. Further, in order to confirm the practical effect, heating was carried out at 20 ° C. for 1 week after leaving the warehouse, and the heating treatment was simultaneously performed. Table 7 summarizes the results.
And shown in Table 8.
【００２３】[0023]
【表７】 [Table 7]
【００２４】[0024]
【表８】 [Table 8]
【００２５】[0025]
【発明の効果】以上より、デンカPVA フィルムを材料と
したCA貯蔵袋は、ポリエチレンフィルムに比べて全ての
試験で不良率が20〜30％低下しており、顕著な効果を挙
げている。特に表４にみられるとおり貯蔵時期が長く、
加温処理された条件下では、より一層の効果を挙げてい
る。冷蔵庫貯蔵袋についても、CA貯蔵袋と同様、ポリエ
チレンフィルムに比べて全ての試験で不良率が20〜30％
低下しており、特に表７及び表８にみられる通り貯蔵期
間が長く、加温処理された条件下でも、より一層の効果
を挙げている。As described above, the CA storage bag made of Denka PVA film has a defective rate of 20 to 30% lower in all the tests than the polyethylene film, which is a remarkable effect. Especially as shown in Table 4, the storage time is long,
Under the condition of heating treatment, the effect is further enhanced. Like the CA storage bag, the refrigerator storage bag has a 20% to 30% defective rate in all tests compared to polyethylene film.
In particular, as shown in Tables 7 and 8, the storage period is long, and the effect is further enhanced even under the condition of heating treatment.
【００２６】即ち、本発明のCA貯蔵用袋及び冷蔵庫貯蔵
用袋を使用すれば、果実の鮮度保持、腐敗率が低下し更
には薬剤等を使用することなく、また新聞紙等を袋の下
に敷く作業もない等の効果を出すことが出来る。That is, when the CA storage bag and the refrigerator storage bag of the present invention are used, the freshness of fruits and the decay rate are lowered, and further, without using chemicals, newspapers etc. are put under the bags. The effect of not having to lay it can be achieved.
Claims (1)
ムからなる果実の貯蔵用袋。1. A bag for storing fruits, which comprises a film whose main component is polyvinyl alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4295054A JPH0779585B2 (en) | 1992-11-04 | 1992-11-04 | Fruit storage bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4295054A JPH0779585B2 (en) | 1992-11-04 | 1992-11-04 | Fruit storage bag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0638626A JPH0638626A (en) | 1994-02-15 |
| JPH0779585B2 true JPH0779585B2 (en) | 1995-08-30 |
Family
ID=17815726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4295054A Expired - Lifetime JPH0779585B2 (en) | 1992-11-04 | 1992-11-04 | Fruit storage bag |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0779585B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6165529A (en) * | 1999-01-13 | 2000-12-26 | Planet Polymer Technologies, Inc. | Process for preventing fresh produce and coating composition therefor |
| US6203833B1 (en) | 2000-02-16 | 2001-03-20 | Planet Polymer Technologies, Inc. | Process for preserving fresh produce |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52107936A (en) * | 1976-02-27 | 1977-09-10 | Shiraishi Karushiumu Kk | Ripeness acceleration and floateddpeel prevention of citrus fruit |
| JPS59102337A (en) * | 1982-12-03 | 1984-06-13 | 電気化学工業株式会社 | Fruit bag |
| JPS59148701A (en) * | 1983-02-08 | 1984-08-25 | Nitto Electric Ind Co Ltd | Method for protecting and storing bulbs |
| JPS60203138A (en) * | 1984-03-27 | 1985-10-14 | Buei Haneda | Agent for keeping freshness of vegetables and fruits and sheet therefor |
-
1992
- 1992-11-04 JP JP4295054A patent/JPH0779585B2/en not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| 大久保増太郎編著「野菜の鮮度保持」（昭５７−３−１５）養賢堂 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0638626A (en) | 1994-02-15 |
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