JP2011057265A - Oxygen scavenger package, continuous packages, continuous packages with cover film, hermetic container containing fresh meat, and method of preserving the fresh meat - Google Patents

Oxygen scavenger package, continuous packages, continuous packages with cover film, hermetic container containing fresh meat, and method of preserving the fresh meat Download PDF

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JP2011057265A
JP2011057265A JP2009209996A JP2009209996A JP2011057265A JP 2011057265 A JP2011057265 A JP 2011057265A JP 2009209996 A JP2009209996 A JP 2009209996A JP 2009209996 A JP2009209996 A JP 2009209996A JP 2011057265 A JP2011057265 A JP 2011057265A
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oxygen scavenger
oxygen
package
mass
parts
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Takeshi Sugito
健 杉戸
Shigeyuki Katada
茂行 片田
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Mitsubishi Gas Chemical Co Inc
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an oxygen scavenger package or the like capable of rapidly absorbing free oxygen under generally severe conditions for deoxidization such as coexistence of carbon dioxide gas or at low temperature. <P>SOLUTION: In the oxygen scavenger package including an air-permeable packaging material for storing an oxygen scavenger composition, the oxygen scavenger composition comprises 0.1-20 pts.mass of sodium halide, 20-80 pts.mass of water, and 0.01-130 pts.mass of activated carbon, which are blended based on 100 pts.mass of iron powder, and at least the air-permeable packaging material of the oxygen scavenger package has a Gurley permeability of 60 sec/100 mL or less. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、脱酸素剤包装体、その連包体、カバーフィルム付き連包体、生肉入り密閉容器及び生肉の保存方法に関する。   The present invention relates to an oxygen scavenger package, a continuous package thereof, a continuous package with a cover film, a sealed container containing raw meat, and a method for preserving raw meat.

従来から、金属鉄等の酸化反応を利用した鉄系脱酸素剤は広く知られており、この鉄系脱酸素剤を食品等の物品と共に密封容器に収納して容器内の酸素を吸収除去することにより、主として酸素による酸化劣化を防止して食品等の鮮度および品質を保持するために利用されている。   Conventionally, iron-based oxygen absorbers using oxidation reactions such as metallic iron are widely known, and this iron-based oxygen absorber is housed in a sealed container together with articles such as food to absorb and remove oxygen in the container. Therefore, it is mainly used to prevent oxidative deterioration due to oxygen and maintain the freshness and quality of foods and the like.

一方、食品等の鮮度および品質を保持するための保存技術としては、ガス置換、チルド、フローズンチルド雰囲気で保存する方法が存在する。ガス置換は、窒素または炭酸ガス等の不活性ガスで密閉容器内の酸素を追い出すことにより初期酸素濃度を下げ、酸化劣化を防止する方法である。チルド、フローズンチルド保存は、低温にすることにより密閉容器内の空間または収納された物品に付着している細菌の繁殖を抑制し、腐敗等を防止する方法である。   On the other hand, as a preservation technique for maintaining the freshness and quality of foods and the like, there are methods for preservation in a gas substitution, chilled, and frozen chilled atmosphere. Gas replacement is a method of preventing oxidative degradation by lowering the initial oxygen concentration by driving out oxygen in the sealed container with an inert gas such as nitrogen or carbon dioxide. Chilled and frozen chilled storage is a method of preventing the spoilage and the like by suppressing the growth of bacteria adhering to the space in the sealed container or the stored article by lowering the temperature.

また、食品等の鮮度および品質保持効果を高めるために、鉄系脱酸素剤を利用した保存方法と、ガス置換、チルド、フローズンチルドで保存する方法とを併用して使用することが必要となる場合もある。   In addition, in order to enhance the freshness and quality preservation effects of foods, etc., it is necessary to use a combination of a storage method using an iron-based oxygen scavenger and a gas storage, chilled, or frozen chilled method. In some cases.

しかし、この場合、鉄系脱酸素剤の能力は通常の大気下、常温下より著しく低下し、特にガス置換と、チルドもしくはフローズンチルドとを併用する場合には、酸素吸収速度の低下が顕著に現れて、密閉容器内に透過してくる酸素により、品質劣化等をきたす問題があった。   However, in this case, the ability of the iron-based oxygen scavenger is significantly lower than in ordinary air and at room temperature, and particularly when gas replacement is used in combination with chilled or frozen chilled, the oxygen absorption rate decreases significantly. Appearing and oxygen permeating into the sealed container has a problem of causing quality degradation.

そこで、このような問題を解決するために種々の方法が提案され、その一つの方法として、例えば鉄系脱酸素剤に液体の反応促進剤を強制的に添加する方法が知られている(特許文献1および2)。この方法は、反応促進剤として水又は希酸を用い、鉄の酸化反応を促進させ、短時間で密閉容器内の酸素を取り除く方法である。   In order to solve such problems, various methods have been proposed. As one of the methods, for example, a method of forcibly adding a liquid reaction accelerator to an iron-based oxygen scavenger is known (patent) References 1 and 2). In this method, water or dilute acid is used as a reaction accelerator, the iron oxidation reaction is accelerated, and oxygen in the sealed container is removed in a short time.

特表2001−524834号公報JP 2001-524834 A 特開2003−311119号公報JP 2003-31119 A

しかし、上記特許文献1及び2記載の方法には、反応促進剤である液体を鉄系脱酸素剤に注入するための専用設備が高価であるうえ、作業時のトラブルが頻発するという問題があった。具体的には、反応促進剤を鉄系脱酸素剤に注入するためにシリンジを使用するが、注入時にシリンジの針が鉄系脱酸素剤を貫通したり、シリンジの針に脱酸素剤の内容物が詰まることなどが原因となり、鉄系脱酸素剤に反応促進剤を注入できないことがあった。   However, the methods described in Patent Documents 1 and 2 have problems in that dedicated equipment for injecting a liquid as a reaction accelerator into an iron-based oxygen scavenger is expensive and troubles frequently occur during work. It was. Specifically, a syringe is used to inject the reaction accelerator into the iron-based oxygen scavenger, but at the time of injection, the syringe needle penetrates the iron-based oxygen scavenger, or the contents of the oxygen scavenger in the syringe needle Due to clogging of things, reaction accelerators may not be injected into iron-based oxygen scavengers.

このように、ガス置換、チルド、フローズンチルドの条件下、即ち炭酸ガス共存下、または低温下などの一般に脱酸素するのに過酷な条件下では、高速に脱酸素を行うことができる鉄系脱酸素剤包装体は見出されていないのが現状であり、炭酸ガス共存下、または低温下などの一般に脱酸素するのに過酷な条件下にあっても、高速に脱酸素を行うことができる鉄系脱酸素剤包装体が求められていた。   In this way, under the conditions of gas substitution, chilled, frozen chilled, that is, in the presence of carbon dioxide gas, or under severe conditions such as low temperatures, iron-based deoxygenation can be performed at high speed. Oxygen agent package has not been found at present, and can be deoxygenated at high speed even under harsh conditions such as coexistence of carbon dioxide gas or under low temperature. There has been a need for an iron-based oxygen scavenger package.

本発明は、炭酸ガス共存下、または低温下などの一般に脱酸素するには過酷な条件下であっても、高速に脱酸素を行うことができる脱酸素剤包装体、その連包体、カバーフィルム付き連包体、生肉入り密閉容器及び生肉の保存方法を提供することを目的とする。   The present invention relates to an oxygen scavenger package capable of performing deoxygenation at high speed even under harsh conditions for deoxygenation generally in the presence of carbon dioxide gas or at a low temperature, a continuous package thereof, and a cover. It aims at providing the continuous packaging body with a film, the airtight container containing raw meat, and the preservation | save method of raw meat.

本発明者らは、上記課題を解決するため鋭意検討研究を行った結果、鉄系脱酸素剤組成物中の鉄、ハロゲン化金属、活性炭、水の各成分を特定の配合量とすることで、炭酸ガス共存下、または低温下などの一般に脱酸素するには過酷な条件下であっても、脱酸素剤組成物の脱酸素能力が顕著に高まることを見出し、本発明を完成するに至った。   As a result of intensive studies to solve the above problems, the present inventors have determined that each component of iron, metal halide, activated carbon, and water in the iron-based oxygen scavenger composition has a specific blending amount. It was found that the oxygen scavenger composition has a significantly improved oxygen scavenging ability even under severe conditions such as coexistence with carbon dioxide or at low temperatures. It was.

即ち本発明は、脱酸素剤組成物と、前記脱酸素剤組成物を収納する通気性包装材を有する包装材とを備える脱酸素剤包装体であって、前記脱酸素剤組成物が、鉄粉100質量部に対して、ハロゲン化ナトリウムを0.1〜20質量部、水を20〜80質量部、活性炭を0.01〜130質量部配合させてなり、前記通気性包装材が60秒/100mL以下のガーレ式透気度を有する脱酸素剤包装体である。   That is, the present invention is an oxygen scavenger package comprising an oxygen scavenger composition and a packaging material having a breathable packaging material that houses the oxygen scavenger composition, wherein the oxygen scavenger composition is iron. 0.1 to 20 parts by mass of sodium halide, 20 to 80 parts by mass of water, and 0.01 to 130 parts by mass of activated carbon are blended with 100 parts by mass of the powder, and the breathable packaging material is 60 seconds. / Oxygen scavenger package having a Gurley air permeability of 100 mL or less.

また本発明は、脱酸素剤組成物と、前記脱酸素剤組成物を収納する通気性包装材を有する包装材とを備える複数の脱酸素剤包装体の連包体であって、前記脱酸素剤組成物が、鉄粉100質量部に対して、ハロゲン化ナトリウムを0.1〜20質量部、水を20〜80質量部、活性炭を0.01〜130質量部配合させてなり、前記通気性包装材が60秒/100mL以下のガーレ式透気度を有する、連包体である。   Further, the present invention is a continuous package of a plurality of oxygen scavenger packaging bodies comprising an oxygen scavenger composition and a packaging material having a breathable packaging material that houses the oxygen scavenger composition, The agent composition comprises 0.1 to 20 parts by mass of sodium halide, 20 to 80 parts by mass of water, and 0.01 to 130 parts by mass of activated carbon with respect to 100 parts by mass of iron powder. The continuous packaging material has a Gurley air permeability of 60 seconds / 100 mL or less.

本発明の脱酸素剤包装体及び連包体によれば、炭酸ガス共存下、または低温下などの一般に脱酸素するには過酷な条件下であっても、脱酸素剤組成物の脱酸素能力を顕著に高めることが可能となり、高速に脱酸素を行うことができる。   According to the oxygen scavenger packaging body and the continuous package of the present invention, the oxygen scavenging ability of the oxygen scavenger composition, even under severe conditions such as coexistence with carbon dioxide or generally at low temperatures Can be remarkably increased, and deoxidation can be performed at high speed.

また本発明は、上記脱酸素剤包装体の連包体と、前記脱酸素剤包装体の前記通気性包装材の各々を覆うように設けられるカバーフィルムとを備えるカバーフィルム付き連包体であって、前記カバーフィルムのガーレ式透気度が、前記通気性包装材のガーレ式透気度よりも大きい、カバーフィルム付き連包体である。   The present invention is also a continuous packaged body with a cover film, comprising the continuous package of the oxygen scavenger package and a cover film provided so as to cover each of the breathable packaging materials of the oxygen scavenger package. Thus, the cover film-attached continuous body has a Gurley type air permeability of the cover film larger than a Gurley type air permeability of the breathable packaging material.

このカバーフィルム付き連包体によれば、カバーフィルムによって通気性包装材が覆われているため、通気性包装材がカバーフィルムによって覆われている間はカバーフィルムにおいて酸素の透過が十分に阻止される。このため、通気性包装材の外部から内部への酸素の侵入が十分に抑制され、脱酸素剤組成物の脱酸素反応を十分に抑制することが可能となる。その結果、以下の効果を得ることもできる。即ち、連包体は一般にはその製造直後に、酸素と反応しないように真空パックされた包装袋内に封入されることが一般的である。そして、ユーザーは、必要な時に、その包装袋を開封して、脱酸素が必要な食品等とともに包装容器内に収納する。通常であれば、脱酸素剤組成物が脱酸素を行うのに十分な余裕があり、ユーザーも早急に作業をする必要はない。しかし、本発明の脱酸素剤組成物は、上述したように、極めて高速に脱酸素を行うことができる。このため、包装袋から連包体を開封して取り出したのち、数時間で脱酸素反応が完了してしまい、脱酸素剤包装体が無駄になってしまうおそれがある。本発明のカバーフィルム付き連包体によれば、脱酸素剤組成物の脱酸素反応を十分に抑制することが可能となるため、ユーザーは、包装袋の開封後も、余裕を持って脱酸素剤包装体の密閉容器への収納作業を行うことができるようになる。一方、カバーフィルムを複数の脱酸素剤包装体の通気性包装材から剥離して、脱酸素剤包装体を、脱酸素が必要な食品等とともに密閉容器内に配置すると、その密閉容器中の酸素を通気性包装材の外部から内部に侵入させ、脱酸素剤組成物と反応させることが可能となる。このとき、脱酸素剤組成物を酸素と極めて高速で反応させることが可能となるため、密閉容器中の脱酸素を極めて高速で行うことができる。   According to this continuous package with a cover film, since the air-permeable packaging material is covered with the cover film, oxygen transmission is sufficiently prevented in the cover film while the air-permeable packaging material is covered with the cover film. The For this reason, invasion of oxygen from the outside to the inside of the breathable packaging material is sufficiently suppressed, and the deoxygenation reaction of the oxygen scavenger composition can be sufficiently suppressed. As a result, the following effects can also be obtained. That is, the continuous package is generally sealed in a vacuum-packed packaging bag so as not to react with oxygen immediately after its manufacture. Then, when necessary, the user opens the packaging bag and stores it in a packaging container together with foods that require deoxidation. Normally, the oxygen scavenger composition has sufficient room for deoxygenation, and the user does not need to work immediately. However, as described above, the oxygen scavenger composition of the present invention can perform oxygen scavenging at an extremely high speed. For this reason, after opening and taking out the continuous package from the packaging bag, the deoxygenation reaction is completed in several hours, and the oxygen scavenger package may be wasted. According to the continuous film with a cover film of the present invention, it becomes possible to sufficiently suppress the deoxygenation reaction of the oxygen scavenger composition, so that the user can easily deoxygenate after opening the packaging bag. The medicine package can be stored in the sealed container. On the other hand, when the cover film is peeled off from the breathable packaging material of a plurality of oxygen scavenger packaging bodies and the oxygen scavenger packaging body is placed in a sealed container together with foods that require deoxidation, the oxygen in the sealed containers Can penetrate into the inside of the breathable packaging material from the outside and react with the oxygen scavenger composition. At this time, since the oxygen scavenger composition can be reacted with oxygen at a very high speed, the oxygen can be removed from the sealed container at a very high speed.

上記ハロゲン化ナトリウムが塩化ナトリウムまたは臭化ナトリウムであることが好ましい。   The sodium halide is preferably sodium chloride or sodium bromide.

この場合、高い化学反応性を有するフッ化ナトリウムよりも安全性が高いという利点やヨウ化ナトリウムのように酸化によって着色することがないという利点がある。   In this case, there is an advantage that it is safer than sodium fluoride having high chemical reactivity and an advantage that it is not colored by oxidation unlike sodium iodide.

また本発明の生肉入り密閉容器は、密閉容器中に、生肉と、上記の脱酸素剤包装体とを密封包装してなる生肉入り密閉容器であって、前記密閉容器内の雰囲気が、二酸化炭素濃度が20〜50容量%である、生肉入り密閉容器である。   Further, the sealed container with raw meat of the present invention is a sealed container with raw meat formed by sealing and packaging raw meat and the oxygen scavenger package in a sealed container, and the atmosphere in the sealed container is carbon dioxide. It is a sealed container with raw meat having a concentration of 20 to 50% by volume.

この生肉入り密閉容器によれば、密閉容器内の雰囲気が、二酸化炭素濃度を20〜50容量%としたものであるものの、生肉入り密閉容器中の酸素が通気性包装材の外部から内部に侵入し、脱酸素剤組成物と反応する際、脱酸素剤組成物を酸素と極めて高速で反応させることが可能となるため、生肉入り密閉容器中の脱酸素を極めて高速で行うことができる。このため、生肉が酸素に晒される時間を短縮でき、生肉の品質劣化を十分に抑制することができる。   According to this sealed container with raw meat, the atmosphere in the sealed container has a carbon dioxide concentration of 20 to 50% by volume, but oxygen in the sealed container with raw meat enters the inside from the outside of the breathable packaging material. When the oxygen scavenger composition reacts with the oxygen scavenger composition, the oxygen scavenger composition can react with oxygen at a very high speed, so that the oxygen can be removed from the sealed container containing raw meat at a very high speed. For this reason, the time when raw meat is exposed to oxygen can be shortened, and quality deterioration of raw meat can fully be suppressed.

さらに本発明は、上記生肉入り密閉容器を−10〜5℃の温度で保存することにより生肉を保存する生肉の保存方法である。   Furthermore, this invention is the preservation | save method of raw meat which preserve | saves raw meat by preserve | saving the said airtight container with raw meat at the temperature of -10-5 degreeC.

この生肉の保存方法によれば、密閉容器内の雰囲気が、二酸化炭素濃度が20〜50容量%、酸素濃度が0.1容量%以下であり、且つ、−10〜5℃の温度であって、一般に脱酸素するには過酷な条件下であるにもかかわらず、生肉とともに密閉容器内に配置されている脱酸素剤包装体によって、脱酸素を極めて高速で行わせることができる。従って、この生肉の保存方法によれば、生肉における細菌の繁殖を抑制することが可能となり、生肉の変色や腐敗等を防止することが可能となるので、生肉の品質劣化を十分に抑制することができる。   According to this raw meat storage method, the atmosphere in the sealed container has a carbon dioxide concentration of 20 to 50% by volume, an oxygen concentration of 0.1% by volume or less, and a temperature of −10 to 5 ° C. In general, deoxidation can be performed at a very high speed by the oxygen scavenger package disposed in a sealed container together with raw meat, even under severe conditions for deoxygenation. Therefore, according to this raw meat storage method, it is possible to suppress the growth of bacteria in the raw meat, and it is possible to prevent discoloration, decay, etc. of the raw meat, so that the quality deterioration of the raw meat can be sufficiently suppressed. Can do.

本発明によれば、炭酸ガス共存下、または低温下などの一般に脱酸素するには過酷な条件下であっても、高速に脱酸素を行うことができる脱酸素剤包装体、その連包体、カバーフィルム付き連包体、生肉入り密閉容器及び生肉の保存方法が提供される。   According to the present invention, an oxygen scavenger package that can perform deoxygenation at high speed even under harsh conditions for general deoxygenation such as coexistence with carbon dioxide or at low temperatures, and its continuous package A continuous package with a cover film, a sealed container with raw meat, and a method for preserving raw meat are provided.

本発明の脱酸素剤包装体の一実施形態を示す正面図である。It is a front view which shows one Embodiment of the oxygen absorber package of this invention. 本発明の連包体の一実施形態を示す正面図である。It is a front view which shows one Embodiment of the continuous package of this invention. 本発明のカバーフィルム付き連包体の一実施形態を示す正面図である。It is a front view which shows one Embodiment of the continuous packaging body with a cover film of this invention. 本発明の生肉入り密閉容器の一実施形態を示す断面図である。It is sectional drawing which shows one Embodiment of the airtight container containing raw meat of this invention.

以下、本発明の実施形態について、必要に応じて図面を参照しながら説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings as necessary.

[脱酸素剤包装体]
まず本発明の脱酸素剤包装体の実施形態について説明する。図1は、本発明の脱酸素剤包装体の一実施形態を示す正面図である。図1に示すように、脱酸素剤包装体100は、脱酸素剤組成物(図示せず)と、脱酸素剤組成物を収納する通気性包装材を有する包装材10とを備える。脱酸素剤組成物は、鉄粉、ハロゲン化ナトリウム、活性炭、水を必須成分として含有している。具体的には、脱酸素剤組成物は、鉄粉100質量部に対して、ハロゲン化ナトリウムを0.1〜20質量部、水を20〜80質量部、活性炭を0.01〜130質量部配合させてなるものである。また脱酸素剤包装体100の通気性包装材は60秒/100mL以下のガーレ式透気度を有する。
[Oxygen absorber package]
First, an embodiment of the oxygen scavenger package of the present invention will be described. FIG. 1 is a front view showing an embodiment of the oxygen scavenger package of the present invention. As shown in FIG. 1, the oxygen scavenger package 100 includes an oxygen scavenger composition (not shown) and a packaging material 10 having a breathable packaging material that houses the oxygen scavenger composition. The oxygen scavenger composition contains iron powder, sodium halide, activated carbon, and water as essential components. Specifically, the oxygen scavenger composition is 0.1 to 20 parts by mass of sodium halide, 20 to 80 parts by mass of water, and 0.01 to 130 parts by mass of activated carbon with respect to 100 parts by mass of iron powder. It is made to mix | blend. The breathable packaging material of the oxygen scavenger package 100 has a Gurley air permeability of 60 seconds / 100 mL or less.

脱酸素剤包装体100によれば、炭酸ガス共存下、または低温下などの一般に脱酸素するには過酷な条件下、具体的には、二酸化炭素濃度が20〜50容量%、温度が−10〜5℃という、脱酸素するには過酷な条件下においても、脱酸素剤組成物の脱酸素能力を顕著に高めることが可能となり、高速に脱酸素を行うことができる。   According to the oxygen scavenger package 100, generally in severe conditions for deoxygenation such as coexistence with carbon dioxide or at a low temperature, specifically, the carbon dioxide concentration is 20 to 50% by volume, and the temperature is −10. Even under harsh conditions for deoxygenation of ˜5 ° C., the deoxygenation ability of the deoxidizer composition can be remarkably increased, and deoxidation can be performed at high speed.

以下、脱酸素剤組成物及び包装材について詳細に説明する。   Hereinafter, the oxygen scavenger composition and the packaging material will be described in detail.

まず脱酸素剤組成物について説明する。   First, the oxygen scavenger composition will be described.

(鉄粉)
脱酸素剤組成物に配合する鉄粉としては、還元鉄粉、電解鉄粉、噴霧鉄粉などの種々のものが使用できるが、酸素との接触を良好とするために比表面積をできるだけ大きくすることが好ましく、例えば、10メッシュ以下、特に50メッシュ以下の鉄粉が好ましい。
(Iron powder)
Various iron powders such as reduced iron powder, electrolytic iron powder, and sprayed iron powder can be used as the iron powder to be mixed in the oxygen scavenger composition, but the specific surface area should be made as large as possible in order to improve the contact with oxygen. For example, iron powder of 10 mesh or less, particularly 50 mesh or less is preferable.

(ハロゲン化ナトリウム)
脱酸素剤組成物にはハロゲン化ナトリウムが配合される。ここで、ハロゲン原子としては任意のものが選択できるが、中でも、安全性が高く、着色が見られないという理由から、塩素原子または臭素原子が好ましい。即ち塩化ナトリウムまたは臭化ナトリウムがハロゲン化ナトリウムとして好ましい。
(Sodium halide)
The oxygen scavenger composition is mixed with sodium halide. Here, any halogen atom can be selected, and among them, a chlorine atom or a bromine atom is preferable because of high safety and no coloration. That is, sodium chloride or sodium bromide is preferred as the sodium halide.

ハロゲン化ナトリウムの配合量は鉄粉100質量部に対して0.1〜20質量部であり、好ましくは0.1〜10質量部であり、より好ましくは1〜10質量部であり、特に好ましくは2.5〜8質量部である。ハロゲン化ナトリウムの配合量が0.1質量部を下回ると、低温、高炭酸ガス濃度環境下において、脱酸素性能が不十分となるため好ましくない。また、20質量部を上回ると、脱酸素剤組成物が吸湿して水分が鉄粉表面を覆ってしまい、酸素吸収反応を停止させることがあるため好ましくない。   The blending amount of sodium halide is 0.1 to 20 parts by weight, preferably 0.1 to 10 parts by weight, more preferably 1 to 10 parts by weight, particularly preferably 100 parts by weight of iron powder. Is 2.5-8 parts by mass. When the blending amount of sodium halide is less than 0.1 parts by mass, the oxygen scavenging performance becomes insufficient under low temperature and high carbon dioxide concentration environment, which is not preferable. On the other hand, when the amount exceeds 20 parts by mass, the oxygen scavenger composition absorbs moisture and the moisture covers the surface of the iron powder, which is not preferable.

ハロゲン化ナトリウムとしては通常、粉末または粒状のものを用いられる。ハロゲン化ナトリウムは鉄粉と混合して配合しても良いが、ハロゲン化ナトリウムを鉄粉表面に被膜させて被膜鉄粉(コーティング鉄粉)とすることが好ましい。ハロゲン化ナトリウムを鉄粉表面に被膜させる方法としては、鉄粉表面にハロゲン化ナトリウム水溶液を散布し乾燥させる方法、あるいは鉄粉とハロゲン化ナトリウム水溶液を混合し、これを乾燥させる方法などが例示できる。中でも、ハロゲン化ナトリウムの水溶液を用いて鉄粉表面にハロゲン化ナトリウムを散布させた後に乾燥する方法が、均一にハロゲン化ナトリウムを分散させることができるという理由から好ましい。ハロゲン化ナトリウムを鉄粉の被膜として配合する場合、ハロゲン化ナトリウムの配合量は、鉄粉100質量部に対して0.1〜20質量部配合することが好ましく、0.1〜8質量部配合することがより好ましい。   As a sodium halide, a powder or a granular thing is used normally. Sodium halide may be blended with iron powder, but it is preferable to coat sodium halide on the surface of iron powder to form coated iron powder (coating iron powder). Examples of the method of coating sodium halide on the iron powder surface include a method of spraying and drying a sodium halide aqueous solution on the surface of the iron powder, or a method of mixing iron powder and a sodium halide aqueous solution and drying the mixture. . Among these, the method of drying after spraying sodium halide on the surface of the iron powder using an aqueous solution of sodium halide is preferable because the sodium halide can be uniformly dispersed. When blending sodium halide as a coating of iron powder, the blending amount of sodium halide is preferably 0.1 to 20 parts by weight, and 0.1 to 8 parts by weight with respect to 100 parts by weight of iron powder. More preferably.

(活性炭)
脱酸素剤組成物には活性炭が配合される。活性炭としては任意のものが使用でき、その材質には特に制限はないが、取扱い性、反応性などの点から、木質系やヤシ柄炭系などが好ましい。脱酸素剤組成物に対する活性炭の配合量は鉄粉100質量部に対して0.01〜130質量部であり、好ましくは0.1〜100質量部であり、より好ましくは0.5〜50質量部であり、特に好ましくは1.5〜10質量部である。配合量が0.01質量部を下回ると、低温、高炭酸ガス濃度環境下において、脱酸素性能が不十分となるため好ましくない。また、130質量部を上回ると、脱酸素剤組成物の体積を際限なく大きくすることが可能な場合は特に問題はないが、限られた体積にて収める場合は酸素吸収に必要な主成分となる鉄粉量の割合が相対的に低下するため好ましくない。
(Activated carbon)
Activated carbon is blended in the oxygen scavenger composition. As the activated carbon, any can be used, and the material is not particularly limited. However, from the viewpoints of handling property, reactivity and the like, a wood type or a palm pattern type is preferable. The compounding quantity of the activated carbon with respect to an oxygen scavenger composition is 0.01-130 mass parts with respect to 100 mass parts of iron powder, Preferably it is 0.1-100 mass parts, More preferably, it is 0.5-50 masses. Part, particularly preferably 1.5 to 10 parts by mass. When the blending amount is less than 0.01 parts by mass, the deoxygenation performance becomes insufficient under low temperature and high carbon dioxide concentration environment, which is not preferable. Further, if it exceeds 130 parts by mass, there is no particular problem if the volume of the oxygen scavenger composition can be increased without limit, but if it is contained in a limited volume, the main component necessary for oxygen absorption This is not preferable because the ratio of the amount of iron powder is relatively reduced.

(水)
脱酸素剤組成物には鉄粉100質量部に対して水が20〜80質量部の割合で配合される。配合量が20質量部を下回ると、酸素吸収に必要な水分量が不足するため好ましくない。また、80質量部を上回ると脱酸素剤の体積が際限なく大きくすることが可能な場合は特に問題はないが、限られた体積にて収める場合は酸素吸収に必要な主成分となる鉄粉量の割合が相対的に低下するため好ましくない。鉄粉100質量部に対する水の配合量は、好ましくは30〜60質量部である。
(water)
Water is blended in the oxygen scavenger composition at a ratio of 20 to 80 parts by mass with respect to 100 parts by mass of the iron powder. If the blending amount is less than 20 parts by mass, the amount of water necessary for oxygen absorption is insufficient, which is not preferable. Further, when the amount exceeds 80 parts by mass, there is no particular problem when the volume of the oxygen scavenger can be increased without limit. However, when the volume of the oxygen scavenger is limited, iron powder as a main component necessary for oxygen absorption. Since the ratio of quantity falls relatively, it is not preferable. The blending amount of water with respect to 100 parts by mass of the iron powder is preferably 30 to 60 parts by mass.

脱酸素剤組成物に水を配合する方法に特に制限はないが、水を担体に担持して配合する方法が好ましい。担体は水を担持できるものであれば特に制限されるものではなく、例えば二酸化珪素、珪藻土、粘土、ゼオライト、セライト、酸性白土などの無機担体が例示できる。無機担体としては、多孔質材料が好ましく、このような多孔質材料としては、細孔容積0.2〜3.0mL/gであるものが好ましい。なお、上述した活性炭を水の担体として使用してもよい。   There is no particular limitation on the method of blending water into the oxygen scavenger composition, but a method of blending with water supported on a carrier is preferred. The carrier is not particularly limited as long as it can carry water, and examples thereof include inorganic carriers such as silicon dioxide, diatomaceous earth, clay, zeolite, celite, and acid clay. The inorganic carrier is preferably a porous material, and such a porous material is preferably one having a pore volume of 0.2 to 3.0 mL / g. The activated carbon described above may be used as a water carrier.

(フィラー)
脱酸素剤組成物には、流動性の向上、副生成物の除去等を目的として、さらにフィラーを添加しても良い。フィラーの具体例としてはゼオライト、パーライト、珪藻土、活性白土、シリカ、カオリン、タルク、ベントナイト、活性アルミナ、石膏、シリカアルミナ、珪酸カルシウム、酸化マグネシウム、黒鉛、カーボンブラック、水酸化アルミニウム、酸化鉄等の粉末または粒状物が挙げられる。
(Filler)
A filler may be further added to the oxygen scavenger composition for the purpose of improving fluidity and removing by-products. Specific examples of fillers include zeolite, perlite, diatomaceous earth, activated clay, silica, kaolin, talc, bentonite, activated alumina, gypsum, silica alumina, calcium silicate, magnesium oxide, graphite, carbon black, aluminum hydroxide, iron oxide, etc. A powder or a granular material is mentioned.

上述した各成分を配合する方法には特に制限はないが、液体成分と固体成分とを均一に混合できる方法ならいずれの方法でも良い。例えば、鉄粉をハロゲン化ナトリウムで被覆した被覆鉄粉と水を担体に担持させた担持体と活性炭とを脱酸素剤組成物とする方法などを採用することができる。   Although there is no restriction | limiting in particular in the method of mix | blending each component mentioned above, Any method may be used if it is a method which can mix a liquid component and a solid component uniformly. For example, a method of using a coated iron powder obtained by coating iron powder with sodium halide, a carrier in which water is supported on a carrier, and activated carbon as an oxygen scavenger composition can be employed.

(包装材)
次に包装材10について説明する。包装材10は、2枚の通気性包装材を貼り合わせて袋状としたものや、1枚の通気性包装材と1枚の非通気性包装材とを貼り合わせて袋状としたもの、1枚の通気性包装材を折り曲げ、折り曲げ部を除く縁部同士をシールして袋状としたものが挙げられる。
(Packaging material)
Next, the packaging material 10 will be described. The packaging material 10 is a bag formed by bonding two breathable packaging materials, or a bag formed by bonding one breathable packaging material and one non-breathable packaging material, One example is one in which a single air-permeable packaging material is bent and the edges excluding the bent portion are sealed to form a bag.

ここで、通気性包装材及び非通気性包装材が四角形状である場合には、包装材10は、2枚の通気性包装材を重ね合わせ、4辺をヒートシールして袋状としたものや、1枚の通気性包装材と1枚の非通気性包装材とを重ね合わせ、4辺をヒートシールして袋状としたもの、1枚の通気性包装材を折り曲げ、折り曲げ部を除く3辺をヒートシールして袋状としたものが挙げられる。また包装材10は、通気性包装材を筒状にしてその筒状体の両端部および胴部をヒートシールして袋状としたものであってもよい。   Here, when the breathable packaging material and the non-breathable packaging material are in a quadrangular shape, the packaging material 10 is a bag shape in which two breathable packaging materials are stacked and heat-sealed on four sides. Or one sheet of breathable packaging material and one sheet of non-breathable packaging material are overlapped to form a bag shape by heat-sealing four sides. One sheet of breathable packaging material is folded and the bent portion is removed. One example is a bag formed by heat-sealing three sides. Further, the packaging material 10 may be a bag-shaped material obtained by heat-sealing both end portions and the body portion of the tubular body by forming the air-permeable packaging material into a tubular shape.

包装材10が、通気性包装材を用いてヒートシールすることによって得られる場合、包装材10は、図1に示すように、脱酸素剤組成物を収納する収納部11と、その周囲に設けられるシール部12とを有することになる。   When the packaging material 10 is obtained by heat-sealing using a breathable packaging material, the packaging material 10 is provided with a storage unit 11 for storing the oxygen scavenger composition and its surroundings as shown in FIG. The seal portion 12 is provided.

本発明で用いる通気性包装材としては、60秒/100mL以下のガーレ式透気度を有するものが用いられる。ここで、ガーレ式透気度とは、JIS P8117−1998の方法により測定された値を言うものとする。より具体的には、東洋精機製作所製のガーレ式デンソメーターを使用して100mLの空気が通気性包装材を透過するのに要した時間を計測して測定された値を言う。通気性包装材のガーレ式透気度が60秒/100mLを超えると、低温、高炭酸ガス濃度環境下において、脱酸素性能が不十分となるため好ましくない。通気性包装材のガーレ式透気度は好ましくは60秒/100mL以下であり、より好ましくは50秒/100mL以下である。但し、ガーレ式透気度が0.1秒/100mLを下回ると、内容物の漏れが懸念される。   As the breathable packaging material used in the present invention, one having a Gurley air permeability of 60 seconds / 100 mL or less is used. Here, the Gurley air permeability means a value measured by the method of JIS P8117-1998. More specifically, it refers to a value measured by measuring the time required for 100 mL of air to pass through the breathable packaging material using a Gurley type densometer manufactured by Toyo Seiki Seisakusho. When the Gurley type air permeability of the breathable packaging material exceeds 60 seconds / 100 mL, the oxygen scavenging performance becomes insufficient under a low temperature and high carbon dioxide concentration environment, such being undesirable. The Gurley type air permeability of the breathable packaging material is preferably 60 seconds / 100 mL or less, more preferably 50 seconds / 100 mL or less. However, when the Gurley air permeability is less than 0.1 sec / 100 mL, there is a concern about leakage of contents.

上記通気性包装材としては、以下のプラスチックフィルムに通気性を付与したものが用いられる。即ちプラスチックフィルムとしては、例えば、ポリエチレンテレフタレート、ポリアミド、ポリプロピレン、ポリカーボネート等のフィルムと、シール層としてポリエチレン、アイオノマー、ポリブタジエン、エチレンアクリル酸コポリマー、エチレンメタクリル酸コポリマーまたはエチレン酢酸ビニルコポリマー等のフィルムとを積層接着した積層フィルム、あるいは、ポリエチレンテレフタレート、ポリアミド、ポリプロピレン、ポリカーボネート等のフィルムに、シール層としてホットメルト等の接着剤を塗布したフィルムなどが使用できる。さらに、上記通気性包装材又は非通気性包装材に耐破損性を向上させるためにワリフ、不織布等の補強材を積層して用いることも可能である。   As the breathable packaging material, the following plastic film provided with breathability is used. That is, as a plastic film, for example, a film of polyethylene terephthalate, polyamide, polypropylene, polycarbonate or the like and a film of polyethylene, ionomer, polybutadiene, ethylene acrylic acid copolymer, ethylene methacrylic acid copolymer or ethylene vinyl acetate copolymer as a sealing layer are laminated. An adhesive laminated film or a film obtained by applying an adhesive such as hot melt as a sealing layer to a film of polyethylene terephthalate, polyamide, polypropylene, polycarbonate or the like can be used. Further, a reinforcing material such as a burif or a non-woven fabric can be laminated and used on the breathable packaging material or the non-breathable packaging material in order to improve the breakage resistance.

上記プラスチックフィルムの中で、強度、製造上の取り扱い性等を考慮すると、ポリエチレンテレフタレートのフィルムに、シール層としてポリエチレン等のヒートシール性フィルムを積層した積層フィルムが最も好ましい。積層フィルムの厚さは、20〜150μmであることが好ましく、30〜100μmであることが特に好ましい。薄すぎるとヒートシール性に劣り、厚すぎるとホットタック性に劣り包装適性が問題となる。   Among the plastic films, in view of strength, handling in production, etc., a laminated film obtained by laminating a polyethylene terephthalate film with a heat sealable film such as polyethylene as a sealing layer is most preferable. The thickness of the laminated film is preferably 20 to 150 μm, particularly preferably 30 to 100 μm. If it is too thin, the heat sealability is inferior, and if it is too thick, the hot tack property is inferior and packaging suitability becomes a problem.

通気性を付与する方法としては、冷針、熱針による穿孔加工の他、種々の方法が採用可能である。穿孔加工により通気性を付与する場合、通気性は、穿孔する孔の径、数、材質等により自由に調節することができる。通気性包装材のガーレ式透気度を60秒/100mL以下とするためには、例えば孔を、その長径が0.1〜2.0mmとなるように形成するとともに、開孔率(孔の合計面積/包装材の全面積)を0.01〜2.0%の範囲で選択するのが望ましい。   As a method for imparting air permeability, various methods can be employed in addition to drilling with a cold needle and a hot needle. When air permeability is imparted by drilling, the air permeability can be freely adjusted by the diameter, number, material, etc. of the holes to be drilled. In order to set the Gurley type air permeability of the breathable packaging material to 60 seconds / 100 mL or less, for example, the hole is formed so that the major axis is 0.1 to 2.0 mm, and the aperture ratio (hole The total area / the total area of the packaging material) is preferably selected in the range of 0.01 to 2.0%.

[脱酸素剤包装体の連包体]
次に、本発明の脱酸素剤包装体の連包体について図2を参照して説明する。図2は、本発明の脱酸素剤包装体の連包体の一実施形態を示す正面図である。図2に示すように、脱酸素剤包装体の連包体200は、上述した複数の脱酸素剤包装体100を一定方向Aに沿って帯状に連ねてなるものである。なお、連包体200を、図2の二点鎖線に沿って切断すると、図1に示す脱酸素剤包装体100を得ることができる。
[Continuous package of oxygen absorber package]
Next, the continuous package of the oxygen absorber package of the present invention will be described with reference to FIG. FIG. 2 is a front view showing an embodiment of a continuous package of oxygen scavenger packaging bodies according to the present invention. As shown in FIG. 2, the oxygen absorber package continuous package 200 is formed by connecting a plurality of the oxygen absorber packages 100 described above in a band shape along a certain direction A. In addition, if the continuous package 200 is cut along the two-dot chain line in FIG. 2, the oxygen scavenger package 100 shown in FIG. 1 can be obtained.

この連包体200は、例えば以下のようにして製造することができる。即ち、2枚の矩形状の通気性包装材を重ね合わせ、最も長い1辺と、最も短い2辺をヒートシールし、最も短い2辺の間の部分について所定の間隔をあけてヒートシールして脱酸素剤組成物を収納する複数の収納部を形成し、各収納部に脱酸素剤組成物を収納したのち、残りの1辺をヒートシールすることにより得ることができる。あるいは、図2に示す連包体200のように、1枚の矩形状の通気性包装材を半分に折り曲げ、折り曲げ部の両端から延びる2辺をヒートシールし、それらヒートシールした2辺の間の部分(図2の二点鎖線に沿った部分)をヒートシールして脱酸素剤組成物を収納する複数の収納部11を形成し、各収納部11に脱酸素剤組成物を収納したのち、残りの1辺をヒートシールすることにより得ることができる。   This continuous package 200 can be manufactured as follows, for example. That is, two rectangular breathable packaging materials are overlapped, the longest one side and the shortest two sides are heat-sealed, and the portion between the shortest two sides is heat-sealed at a predetermined interval. It can be obtained by forming a plurality of storage portions for storing the oxygen scavenger composition, storing the oxygen scavenger composition in each storage portion, and then heat-sealing the remaining one side. Alternatively, like the continuous package 200 shown in FIG. 2, one rectangular breathable packaging material is folded in half, and two sides extending from both ends of the bent portion are heat-sealed, and between the two heat-sealed sides After heat sealing the part (part along the two-dot chain line in FIG. 2) to form a plurality of storage parts 11 for storing the oxygen scavenger composition, each of the storage parts 11 stores the oxygen scavenger composition. The remaining one side can be obtained by heat sealing.

[カバーフィルム付き連包体]
次に、本発明のカバーフィルム付き連包体について図3を参照して説明する。図3は、本発明のカバーフィルム付き連包体の一実施形態を示す正面図である。図3に示すようにカバーフィルム付き連包体300は、脱酸素剤包装体の連包体200と、脱酸素剤包装体100の通気性包装材の各々を覆うように設けられるカバーフィルム220とを備える。
[Continuous package with cover film]
Next, the continuous packaging body with a cover film of this invention is demonstrated with reference to FIG. FIG. 3 is a front view showing one embodiment of the continuous package with a cover film of the present invention. As shown in FIG. 3, a continuous film 300 with a cover film includes a continuous package 200 of an oxygen scavenger package, and a cover film 220 provided to cover each of the breathable packaging materials of the oxygen scavenger package 100. Is provided.

ここで、カバーフィルム220としては、そのガーレ式透気度が、通気性包装材のガーレ式透気度よりも大きいものが用いられる。   Here, as the cover film 220, a film having a Gurley type air permeability greater than that of the breathable packaging material is used.

カバーフィルム220は、ガーレ式透気度が60秒/100mLを超えるものであればいかなるものでもよいが、好ましくはガーレ式透気度が1000秒/100mL以上であり、より好ましくは実質的に測定不能なものが良い。ガーレ式透気度が上記範囲にあると、脱酸素剤包装体を使用する前に、脱酸素剤組成物が環境中の酸素と反応することをより十分に抑制することができる。   The cover film 220 may be any film as long as the Gurley air permeability exceeds 60 seconds / 100 mL, but preferably has a Gurley air permeability of 1000 seconds / 100 mL or more, more preferably substantially measured. What is impossible is good. When the Gurley air permeability is within the above range, the oxygen scavenger composition can be more sufficiently suppressed from reacting with oxygen in the environment before the oxygen scavenger package is used.

カバーフィルム220としては、具体的には通気性包装材のうち穿孔加工をしていない状態のプラスチックフィルムを用いることができる。   As the cover film 220, specifically, a plastic film that is not perforated in a breathable packaging material can be used.

カバーフィルム220は、例えば通気性包装材のうちヒートシール部以外の部分、即ち脱酸素剤組成物を収納する収納部11を覆い、収納部11の周囲にあるヒートシール部12で熱圧着により固定される。ここで、カバーフィルム220のうち収納部11を覆っている部分は引っ張られた状態にあり、且つ収納部11を押圧していることが好ましい。この場合、収納部11とカバーフィルム220とが十分に接触するため、収納部11からの酸素の浸入を十分に抑制することができる。またカバーフィルム220は収納部11と熱圧着されていないため、カバーフィルム220を収納部11から剥離する際、収納部11が破損することを防止することもできる。   The cover film 220 covers, for example, a portion other than the heat seal portion of the breathable packaging material, that is, the storage portion 11 that stores the oxygen absorber composition, and is fixed by thermocompression bonding with the heat seal portion 12 around the storage portion 11. Is done. Here, it is preferable that a portion of the cover film 220 covering the storage portion 11 is in a pulled state and pressing the storage portion 11. In this case, since the storage unit 11 and the cover film 220 are sufficiently in contact with each other, the entry of oxygen from the storage unit 11 can be sufficiently suppressed. In addition, since the cover film 220 is not thermocompression bonded to the storage unit 11, it is possible to prevent the storage unit 11 from being damaged when the cover film 220 is peeled from the storage unit 11.

カバーフィルム220は、連包体200において脱酸素剤包装体100の配列方向Aに対して交差するように延びるシール部(以下、「縦シール」と呼ぶ)12Bに熱圧着により固定され、脱酸素剤包装体100の配列方向Aと同方向に延びるシール部(以下、「横シール」と呼ぶ)12Aには熱圧着により固定されないことが好ましい。この場合、カバーフィルム220を脱酸素剤包装体100の配列方向Aに沿って剥離する場合、カバーフィルム220と縦シール12Bとの接着力は、カバーフィルム220と横シール12Aとの接着力よりも弱い。このため、カバーフィルム220を脱酸素剤包装体100の配列方向Aに沿って剥離する際、カバーフィルム220が破損することが十分に防止され、カバーフィルム220の剥離作業を効率よく行うことができる。   The cover film 220 is fixed by thermocompression bonding to a seal portion (hereinafter referred to as “vertical seal”) 12 </ b> B extending so as to intersect with the arrangement direction A of the oxygen absorber package 100 in the continuous package 200. It is preferable that the seal portion (hereinafter referred to as “lateral seal”) 12A extending in the same direction as the arrangement direction A of the agent package 100 is not fixed by thermocompression bonding. In this case, when the cover film 220 is peeled along the arrangement direction A of the oxygen absorber package 100, the adhesive force between the cover film 220 and the vertical seal 12B is higher than the adhesive force between the cover film 220 and the horizontal seal 12A. weak. For this reason, when peeling the cover film 220 along the arrangement direction A of the oxygen absorber package 100, the cover film 220 is sufficiently prevented from being damaged, and the peeling operation of the cover film 220 can be performed efficiently. .

[生肉入り密閉容器]
次に、本発明の生肉入り密閉容器について図4を参照して説明する。図4は、本発明の生肉入り密閉容器の一実施形態を示す断面図である。図4に示すように、生肉入り密閉容器400は、密閉容器410中に、生肉Mと、上記の脱酸素剤包装体100とを密封包装してなり、密閉容器410内の雰囲気が、二酸化炭素濃度が20〜50容量%、好ましくは25〜40容量%である。
[Airtight container with raw meat]
Next, the sealed container with raw meat of the present invention will be described with reference to FIG. FIG. 4 is a cross-sectional view showing an embodiment of a sealed container with raw meat according to the present invention. As shown in FIG. 4, a sealed container 400 with raw meat is formed by sealing and packaging raw meat M and the oxygen scavenger packaging body 100 in a sealed container 410, and the atmosphere in the sealed container 410 is carbon dioxide. The concentration is 20-50% by volume, preferably 25-40% by volume.

この生肉入り密閉容器400によれば、密閉容器410内の雰囲気が、二酸化炭素濃度を20〜50容量%としたものであるものの、生肉入り密閉容器400中の酸素が通気性包装材の外部から内部に侵入し、脱酸素剤組成物と反応する際、脱酸素剤組成物を酸素と極めて高速で反応させることが可能となるため、生肉入り密閉容器400中の脱酸素を極めて高速で行うことができる。このため、生肉Mが酸素に晒される時間を短縮でき、生肉Mの品質劣化を十分に抑制することができる。   According to this sealed container 400 with raw meat, although the atmosphere in the sealed container 410 has a carbon dioxide concentration of 20 to 50% by volume, oxygen in the sealed container 400 with raw meat is exposed from the outside of the breathable packaging material. When entering the inside and reacting with the oxygen scavenger composition, the oxygen scavenger composition can be reacted with oxygen at a very high speed, so that the deoxidation in the sealed container 400 with raw meat is performed at a very high speed. Can do. For this reason, the time when the raw meat M is exposed to oxygen can be shortened, and the quality deterioration of the raw meat M can be suppressed sufficiently.

本発明に用いられる密閉容器410としては、例えばシリカもしくはアルミナを蒸着したポリエステル、ナイロン6やポリメタキシリレンアジパミドに代表されるポリアミド、エチレン−ビニルアルコール共重合体(EVOH)、塩化ビニリデンなどのプラスチックフィルムやアルミ箔などの金属箔等のガスバリア性物質を用いて形成された包装容器や包装袋などが挙げられる。ここで、生肉Mの状態を視認できるようにする観点からは、透明なプラスチックフィルムを用いることが好ましい。このガスバリア性物質の酸素透過度は、特に制限されるものではないが、好ましくは100mL/(m・atm・24h)以下であり、より好ましくは10mL/(m・atm・24h)以下である。密閉容器410としては、例えば二軸延伸ポリプロピレン/EVOH/ポリエチレンの三層構造からなるプラスチックフィルムなどを用いることができる。密閉容器410は、例えば図4に示すように、容器30と、容器30の開口を覆う蓋部40とで構成することができる。 Examples of the sealed container 410 used in the present invention include polyesters deposited with silica or alumina, polyamides such as nylon 6 and polymetaxylylene adipamide, ethylene-vinyl alcohol copolymer (EVOH), and vinylidene chloride. Examples thereof include packaging containers and packaging bags formed using gas barrier materials such as plastic films and metal foils such as aluminum foil. Here, from the viewpoint of making the state of the raw meat M visible, it is preferable to use a transparent plastic film. The oxygen permeability of the gas barrier material is not particularly limited, but is preferably 100 mL / (m 2 · atm · 24 h) or less, more preferably 10 mL / (m 2 · atm · 24 h) or less. is there. As the sealed container 410, for example, a plastic film having a three-layer structure of biaxially stretched polypropylene / EVOH / polyethylene can be used. For example, as shown in FIG. 4, the sealed container 410 can be composed of the container 30 and a lid 40 that covers the opening of the container 30.

本発明に用いられる生肉Mとしては、未だ加熱処理されていないものであれば、豚肉、牛肉、鶏肉、魚肉など、いかなるものであってもよい。   The raw meat M used in the present invention may be any meat such as pork, beef, chicken and fish as long as it has not been heat-treated yet.

密閉容器410内の雰囲気を、二酸化炭素濃度が20〜50容量%、好ましくは25〜40容量%とするのは、このような雰囲気が生肉Mの鮮度及び品質の保存に適しているためである。   The reason why the atmosphere in the sealed container 410 is 20 to 50% by volume, preferably 25 to 40% by volume, is that such an atmosphere is suitable for preserving the freshness and quality of the raw meat M. .

上記生肉入り密閉容器400は、密閉容器410中に、生肉Mと、上述した脱酸素剤包装体100とを密封包装することによって得られる。このとき、例えば二酸化炭素濃度が20〜50容量%、窒素濃度が80〜50容量%の混合ガスで密閉容器410内の雰囲気を置換しながら生肉Mと脱酸素剤包装体100とを充填し、密封包装する方法や、密閉容器410内を脱気した後、上記混合ガスと共に生肉Mと脱酸素剤包装体100とを充填し、密封包装する方法を採用することで上記の雰囲気を実現することができる。こうして生肉入り密閉容器400を得ることができる。   The sealed container 400 with raw meat is obtained by sealing and packaging the raw meat M and the oxygen scavenger package 100 described above in a sealed container 410. At this time, for example, the raw meat M and the oxygen scavenger package 100 are filled while replacing the atmosphere in the sealed container 410 with a mixed gas having a carbon dioxide concentration of 20 to 50% by volume and a nitrogen concentration of 80 to 50% by volume, Realizing the above atmosphere by adopting a method of hermetically wrapping or a method of filling the raw gas M and the oxygen scavenger packaging body 100 together with the mixed gas after degassing the hermetic container 410 and hermetically wrapping. Can do. In this way, the sealed container 400 containing raw meat can be obtained.

[生肉の保存方法]
次に、本発明の生肉の保存方法は、上記生肉入り密閉容器400を−10〜5℃、好ましくは−5〜5℃の温度で保存することにより生肉を保存するものである。
[How to preserve raw meat]
Next, the raw meat preservation method of the present invention preserves raw meat by storing the above-mentioned sealed container 400 containing raw meat at a temperature of -10 to 5 ° C, preferably -5 to 5 ° C.

ここで、上記生肉入り密閉容器400を−10〜5℃の温度で保存するのは、生肉の保存においては、酸素濃度を出来る限り低減し、二酸化炭素濃度が20〜50容量%の環境下、5℃以下で保存することが推奨されているためである。   Here, the above-mentioned sealed container 400 with raw meat is stored at a temperature of −10 to 5 ° C., in the storage of raw meat, the oxygen concentration is reduced as much as possible, and the carbon dioxide concentration is in an environment of 20 to 50% by volume. This is because storage at 5 ° C. or lower is recommended.

以下に実施例を挙げて本願発明を詳細に説明するが、本願発明はこれによって限定されるものではない。   Hereinafter, the present invention will be described in detail with reference to examples, but the present invention is not limited thereto.

(実施例1)
鉄粉100gに臭化ナトリウム4g、活性炭2gを乳鉢で混合し酸素吸収剤A1とした。また、珪藻土(昭和化学工業(株)製 商品名「RC417」)100gに水94g、塩化ナトリウム4.5gが溶解した水溶液を含浸させて水分供与剤Bとした。酸素吸収剤A1を6.0g、水分供与剤Bを6.0g各々計量し、両者を混合して得られた脱酸素剤C1(鉄100質量部に対して、水を50質量部配合)をガーレ式透気度60秒/100mLの有孔ポリエチレンをラミネートして得た小袋D1(60×75mm)に充填し、脱酸素剤包装体E1とした。
Example 1
100 g of iron powder was mixed with 4 g of sodium bromide and 2 g of activated carbon in a mortar to obtain an oxygen absorbent A1. Further, 100 g of diatomaceous earth (trade name “RC417” manufactured by Showa Chemical Industry Co., Ltd.) was impregnated with an aqueous solution in which 94 g of water and 4.5 g of sodium chloride were dissolved to obtain a moisture donor B. 6.0 g of oxygen absorbent A1 and 6.0 g of water donor B were weighed and mixed together to obtain oxygen scavenger C1 (50 parts by mass of water with respect to 100 parts by mass of iron). A small bag D1 (60 × 75 mm) obtained by laminating perforated polyethylene having a Gurley air permeability of 60 seconds / 100 mL was filled into an oxygen scavenger package E1.

得られた脱酸素剤包装体E1を混合ガス2500mL(酸素4容量%、炭酸ガス30容量%、窒素66容量%)が充填された、二軸延伸ポリエチレン/バリアナイロン/ポリエチレンの三層構造からなるガスバリア性多層袋内(ポリエチレン層側を内層とした)に収納後、密封して、5℃、100%RH下で放置したところ、8時間で袋内の酸素濃度が0.1容量%未満の脱酸素状態に到達した。   The obtained oxygen scavenger packaging body E1 has a three-layer structure of biaxially stretched polyethylene / barrier nylon / polyethylene filled with 2500 mL of mixed gas (oxygen 4 vol%, carbon dioxide 30 vol%, nitrogen 66 vol%). After storing in a gas barrier multilayer bag (with the polyethylene layer side as the inner layer), it was sealed and left under 5 ° C. and 100% RH, and the oxygen concentration in the bag was less than 0.1% by volume in 8 hours. Deoxygenated state reached.

(実施例2)
三方シール型自動充填包装機を用いて、ガーレ式透気度が60秒/100mLの有孔ポリエチレンからなる通気性包装材(幅150mm)を中心部で半分に折り曲げるとともに、該折り曲げ部分の両側に幅60mmのポリエチレンからなるカバーフィルムを1枚ずつ該包装材料の外側に配した。つぎに、該折り曲げ部の両端から延びる2辺を該カバーフィルムと共にヒートシールし(縦シール・シール幅15mm)、それらヒートシールした2辺の間の部分を、同じくカバーフィルムと共にヒートシールして脱酸素剤組成物を収納する複数の収納部(幅45mm)を形成した。そして、該収納部に酸素吸収剤A1を6.0g、水分供与剤Bを6.0g各々充填したのち、通気性包装材の残りの1辺をヒートシールすることにより(横シール・シール幅10mm)、一包当たりの大きさが60mm×75mmであり、その両面に60mm×60mmのカバーフィルムが縦シールにより熱圧着された脱酸素剤包装体(脱酸素剤包装体E2)1000包からなるカバーフィルム付き連包体を得た。
(Example 2)
Using a three-side-seal type automatic filling and packaging machine, fold the air-permeable packaging material (width 150 mm) made of perforated polyethylene with a Gurley air permeability of 60 seconds / 100 mL in half at the center, and on both sides of the folded part One cover film made of polyethylene having a width of 60 mm was placed on the outside of the packaging material. Next, two sides extending from both ends of the bent portion are heat-sealed together with the cover film (longitudinal seal / seal width 15 mm), and the portion between the two heat-sealed sides is also heat-sealed together with the cover film to be removed. A plurality of storage portions (width 45 mm) for storing the oxygen agent composition were formed. Then, 6.0 g of oxygen absorbent A1 and 6.0 g of moisture donor B were filled in the storage part, and then the remaining side of the breathable packaging material was heat sealed (lateral seal / seal width 10 mm). ), A cover comprising 1000 bags of oxygen scavenger packaging (oxygen scavenger packaging body E2) having a size of 60 mm × 75 mm per package and having a cover film of 60 mm × 60 mm thermocompression bonded on both sides thereof A continuous package with film was obtained.

次いで、カバーフィルム付き連包体からカバーフィルムを脱酸素剤包装体E2の配列方向に沿って剥離機を用いて剥離しながら、該包装体3包毎に縦シール部の中間部分を切断して、該包装体が3包連なった3連包体を作製した。そして、得られた3連包体を実施例1と同様の構造からなるガスバリア性多層袋中にステーキ用生肉と共に封入し、混合ガス7500mL(酸素2容量%、炭酸ガス30容量%、窒素68容量%)中に密封包装した。その後、0℃の過酷条件下にて保存した。その結果、24日保存後でも生肉に変化や異常は認められなかった。   Next, while peeling the cover film from the continuous packaging body with the cover film using a peeling machine along the arrangement direction of the oxygen scavenger packaging body E2, the middle portion of the vertical seal portion is cut for each of the three packaging bodies. A triple package comprising three packages was produced. And the obtained triple package was enclosed with raw meat for steak in a gas barrier multilayer bag having the same structure as in Example 1, and mixed gas 7500 mL (oxygen 2 vol%, carbon dioxide 30 vol%, nitrogen 68 vol) %). Then, it preserve | saved under the severe conditions of 0 degreeC. As a result, no changes or abnormalities were observed in the raw meat even after storage for 24 days.

(実施例3)
鉄粉100gに塩化ナトリウム4g、活性炭2gを乳鉢で混合し酸素吸収剤A2とした。酸素吸収剤A2を6.0g、実施例1にて得られた水分供与剤Bを6.0g各々計量し、両者を混合して得られた脱酸素剤C2(鉄100質量部に対して、水を50質量部配合)を、実施例1と同様の小袋D1に充填し、脱酸素剤包装体E3とした。得られた脱酸素剤包装体E3を実施例1と同様の操作にて放置したところ、8時間で袋内の酸素濃度が0.1容量%未満の脱酸素状態に到達した。
(Example 3)
100 g of iron powder was mixed with 4 g of sodium chloride and 2 g of activated carbon in a mortar to obtain an oxygen absorbent A2. 6.0 g of oxygen absorbent A2 and 6.0 g of water donor B obtained in Example 1 were weighed, and the oxygen absorber C2 obtained by mixing the two (based on 100 parts by mass of iron, 50 parts by mass of water) was filled in the same sachet D1 as in Example 1 to obtain an oxygen scavenger package E3. When the obtained oxygen scavenger package E3 was left in the same manner as in Example 1, it reached a deoxygenated state in which the oxygen concentration in the bag was less than 0.1% by volume in 8 hours.

(比較例1)
鉄粉100gに塩化カルシウム4g、活性炭2gを乳鉢で混合し酸素吸収剤A3とした。酸素吸収剤A3を6.0g、実施例1にて得られた水分供与剤Bを6.0g各々計量し、両者を混合して得られた脱酸素剤C3(鉄100質量部に対して、水を50質量部配合)を、実施例1と同様の小袋D1に充填し、脱酸素剤包装体E4とした。得られた脱酸素剤包装体E4を実施例1と同様の操作にて放置したところ、22時間で袋内の酸素濃度が0.1容量%未満の脱酸素状態に到達した。
(Comparative Example 1)
100 g of iron powder was mixed with 4 g of calcium chloride and 2 g of activated carbon in a mortar to obtain an oxygen absorbent A3. 6.0 g of oxygen absorbent A3 and 6.0 g of water donor B obtained in Example 1 were weighed and mixed with oxygen absorber C3 (based on 100 parts by mass of iron, 50 parts by mass of water) was filled in the same sachet D1 as in Example 1 to obtain an oxygen scavenger package E4. When the obtained oxygen scavenger package E4 was left in the same manner as in Example 1, the oxygen concentration in the bag reached a deoxygenated state of less than 0.1% by volume in 22 hours.

(比較例2)
鉄粉100gに臭化カルシウム4g、活性炭2gを乳鉢で混合し酸素吸収剤A4とした。酸素吸収剤A4を6.0g、実施例1にて得られた水分供与剤Bを6.0g各々計量し、両者を混合して得られた脱酸素剤C4(鉄100質量部に対して、水を50質量部配合)を、実施例1と同様の小袋D1に充填し、脱酸素剤包装体E5とした。得られた脱酸素剤包装体E5を実施例1と同様の操作にて放置したところ、30時間で袋内の酸素濃度が0.1容量%未満の脱酸素状態に到達した。
(Comparative Example 2)
100 g of iron powder was mixed with 4 g of calcium bromide and 2 g of activated carbon in a mortar to obtain an oxygen absorbent A4. 6.0 g of oxygen absorbent A4 and 6.0 g of water donor B obtained in Example 1 were weighed, and the oxygen absorber C4 obtained by mixing the two (based on 100 parts by mass of iron, 50 parts by mass of water) was filled in the same sachet D1 as in Example 1 to obtain an oxygen scavenger package E5. When the obtained oxygen scavenger package E5 was left in the same manner as in Example 1, the oxygen concentration in the bag reached a deoxygenated state of less than 0.1% by volume in 30 hours.

(比較例3)
実施例1にて作成した脱酸素剤C1をガーレ式透気度120秒/100mLの有効ポリエチレンをラミネートした小袋D2(60×75mm)に充填し、脱酸素剤包装体E6とした。得られた脱酸素剤包装体E6を実施例1と同様の操作にて放置したところ、26時間で袋内の酸素濃度が0.1容量%未満の脱酸素状態に到達した。
(Comparative Example 3)
The oxygen scavenger C1 prepared in Example 1 was filled into a small bag D2 (60 × 75 mm) laminated with an effective polyethylene having a Gurley air permeability of 120 seconds / 100 mL to obtain an oxygen scavenger package E6. When the obtained oxygen scavenger package E6 was left in the same manner as in Example 1, it reached a deoxygenated state in which the oxygen concentration in the bag was less than 0.1% by volume in 26 hours.

(実施例4)
鉄粉100gに臭化ナトリウム0.2g、活性炭2gを乳鉢で混合し酸素吸収剤A5とした。酸素吸収剤A5を6.0g、実施例1にて得られた水分供与剤Bを6.0g各々計量し、両者を混合して得られた脱酸素剤C5(鉄100質量部に対して、水を48質量部配合)を、実施例1と同様の小袋D1に充填し、脱酸素剤包装体E7とした。得られた脱酸素剤包装体E7を実施例1と同様の操作にて放置したところ、8時間で袋内の酸素濃度が0.1容量%未満の脱酸素状態に到達した。
Example 4
100 g of iron powder was mixed with 0.2 g of sodium bromide and 2 g of activated carbon in a mortar to obtain an oxygen absorbent A5. 6.0 g of oxygen absorbent A5 and 6.0 g of water donor B obtained in Example 1 were weighed and mixed with deoxidizer C5 (based on 100 parts by mass of iron). 48 parts by mass of water) was filled in the same sachet D1 as in Example 1 to obtain an oxygen scavenger package E7. When the obtained oxygen scavenger package E7 was left in the same manner as in Example 1, it reached a deoxygenated state in which the oxygen concentration in the bag was less than 0.1% by volume in 8 hours.

(実施例5)
鉄粉100gに臭化ナトリウム10.0g、活性炭2gを乳鉢で混合し酸素吸収剤A6とした。酸素吸収剤A6を6.0g、実施例1にて得られた水分供与剤Bを6.0g各々計量し、両者を混合して得られた脱酸素剤C6(鉄100質量部に対して、水を53質量部配合)を、実施例1と同様の小袋D1に充填し、脱酸素剤包装体E8とした。得られた脱酸素剤包装体E8を実施例1と同様の操作にて放置したところ、8時間で袋内の酸素濃度が0.1容量%未満の脱酸素状態に到達した。
(Example 5)
To 100 g of iron powder, 10.0 g of sodium bromide and 2 g of activated carbon were mixed in a mortar to obtain an oxygen absorbent A6. 6.0 g of oxygen absorber A6 and 6.0 g of water donor B obtained in Example 1 were weighed and mixed with oxygen absorber C6 (based on 100 parts by mass of iron). 53 parts by mass of water) was filled in the same sachet D1 as in Example 1 to obtain an oxygen scavenger package E8. When the obtained oxygen scavenger package E8 was left in the same manner as in Example 1, the oxygen concentration in the bag reached a deoxygenated state of less than 0.1% by volume in 8 hours.

(実施例6)
実施例2で得たカバーフィルム付き連包体を各々の縦シール部の中間部分で切断して、脱酸素剤包装体E2(カバーフィルム付き)を得た。この脱酸素剤包装体E2を25℃、50%RHの空気下に3時間放置した。3時間放置後、脱酸素剤包装体E2の表面に固定したカバーフィルムを剥離させて実施例1と同様の操作にて放置したところ、9時間で袋内の酸素濃度が0.1容量%未満の脱酸素状態に到達した。
(Example 6)
The continuous package with cover film obtained in Example 2 was cut at an intermediate portion of each vertical seal portion to obtain an oxygen scavenger package E2 (with a cover film). The oxygen scavenger package E2 was left for 3 hours in air at 25 ° C. and 50% RH. After leaving for 3 hours, the cover film fixed on the surface of the oxygen scavenger package E2 was peeled off and left in the same manner as in Example 1. After 9 hours, the oxygen concentration in the bag was less than 0.1% by volume. Reached the deoxygenated state.

(実施例7)
鉄粉100gに臭化ナトリウム4g、活性炭0.1gを乳鉢で混合し酸素吸収剤A7とした。酸素吸収剤A7を6.0g、実施例1にて得られた水分供与剤Bを6.0g各々計量し、両者を混合して得られた脱酸素剤C7(鉄100質量部に対して、水を49質量部配合)を、実施例1と同様の小袋D1に充填し、脱酸素剤包装体E9とした。得られた脱酸素剤包装体E9を実施例1と同様の操作にて放置したところ、9時間で袋内の酸素濃度が0.1容量%未満の脱酸素状態に到達した。
(Example 7)
100 g of iron powder was mixed with 4 g of sodium bromide and 0.1 g of activated carbon in a mortar to obtain an oxygen absorbent A7. 6.0 g of oxygen absorber A7 and 6.0 g of water donor B obtained in Example 1 were weighed and mixed with oxygen absorber C7 (based on 100 parts by mass of iron). 49 parts by mass of water) was filled in the same sachet D1 as in Example 1 to obtain an oxygen scavenger package E9. When the obtained oxygen scavenger package E9 was left in the same manner as in Example 1, the oxygen concentration in the bag reached a deoxygenated state of less than 0.1% by volume in 9 hours.

(比較例4)
鉄粉100gに臭化ナトリウム4gを乳鉢で混合し酸素吸収剤A9とした(活性炭0.0g)。酸素吸収剤A9を6.0g、実施例1にて得られた水分供与剤Bを6.0g各々計量し、両者を混合して得られた脱酸素剤C9(鉄100質量部に対して、水を49質量部配合)を、実施例1と同様の小袋D1に充填し、脱酸素剤包装体E11とした。得られた脱酸素剤包装体E11を実施例1と同様の操作にて放置したところ、30時間で袋内の酸素濃度が0.1容量%未満の脱酸素状態に到達した。
(Comparative Example 4)
4 g of sodium bromide was mixed with 100 g of iron powder in a mortar to obtain an oxygen absorbent A9 (activated carbon 0.0 g). 6.0 g of oxygen absorber A9 and 6.0 g of water donor B obtained in Example 1 were weighed and mixed with oxygen absorber C9 (based on 100 parts by mass of iron). 49 parts by mass of water) was filled in the same sachet D1 as in Example 1 to obtain an oxygen scavenger package E11. When the obtained oxygen scavenger package E11 was left in the same manner as in Example 1, the oxygen concentration in the bag reached a deoxygenated state of less than 0.1% by volume in 30 hours.

(比較例5)
鉄粉100gに臭化ナトリウム4g、活性炭150gを乳鉢で混合し酸素吸収剤A10とした。酸素吸収剤A10を6.0g、実施例1にて得られた水分供与剤Bを6.0g各々計量し、両者を混合して得られた脱酸素剤C10(鉄100質量部に対して、水を117質量部配合)を、実施例1と同様の小袋D1に充填し、脱酸素剤包装体E12とした。得られた脱酸素剤包装体E12を実施例1と同様の操作にて放置したところ、40時間で袋内の酸素濃度が0.1容量%未満の脱酸素状態に到達した。
(Comparative Example 5)
100 g of iron powder was mixed with 4 g of sodium bromide and 150 g of activated carbon in a mortar to obtain an oxygen absorbent A10. 6.0 g of oxygen absorbent A10 and 6.0 g of water donor B obtained in Example 1 were weighed and mixed with oxygen absorber C10 (based on 100 parts by mass of iron). 117 parts by mass of water) was filled in the same sachet D1 as in Example 1 to obtain an oxygen scavenger package E12. When the obtained oxygen scavenger package E12 was left in the same manner as in Example 1, the oxygen concentration in the bag reached a deoxygenated state of less than 0.1% by volume in 40 hours.

実施例1〜7及び比較例1〜5の結果を表1に示す。

Figure 2011057265
The results of Examples 1 to 7 and Comparative Examples 1 to 5 are shown in Table 1.
Figure 2011057265

(実施例8)
実施例1にて得られた酸素吸収剤A1を6g、水分供与剤Bを3g各々計量し、両者を混合して得られた脱酸素剤C11(鉄100質量部に対して、水を25質量部配合)を、ガーレ式透気度2秒/100mLの有効ポリエチレンをラミネートして得た小袋D3(60×75mm)に3方シール包装にて充填し、脱酸素剤包装体E13とした。
(Example 8)
6 g of the oxygen absorbent A1 obtained in Example 1 and 3 g of the water donor B were weighed, and the oxygen scavenger C11 obtained by mixing the two (25 parts by mass of water with respect to 100 parts by mass of iron). A small bag D3 (60 × 75 mm) obtained by laminating an effective polyethylene having a Gurley air permeability of 2 seconds / 100 mL was filled in a three-side sealed package to obtain an oxygen scavenger package E13.

得られた脱酸素剤包装体E13を、混合ガス2500mL(酸素6容量%、炭酸ガス30容量%、窒素64容量%)が充填された実施例1と同様の構造からなるガスバリア性多層袋中にて、5℃、100%RH下で放置したところ、19時間で袋内の酸素濃度が0.1容量%未満の脱酸素状態に到達した。   The obtained oxygen scavenger package E13 was placed in a gas barrier multilayer bag having the same structure as in Example 1 filled with 2500 mL of mixed gas (oxygen 6 vol%, carbon dioxide 30 vol%, nitrogen 64 vol%). When left at 5 ° C. and 100% RH, the oxygen concentration in the bag reached a deoxygenated state of less than 0.1% by volume in 19 hours.

(実施例9)
実施例1にて得られた酸素吸収剤A1を6g、水分供与剤Bを5g各々計量し、両者を混合して得られた脱酸素剤C12(鉄100質量部に対して、水を42質量部配合)を、実施例8と同様の小袋D3に充填し、脱酸素剤包装体E14とした。得られた脱酸素剤包装体E14を実施例8と同様の操作にて放置したところ、16時間で袋内の酸素濃度が0.1容量%未満の脱酸素状態に到達した。
Example 9
6 g of the oxygen absorbent A1 obtained in Example 1 and 5 g of the water donor B were weighed, and the oxygen absorber C12 obtained by mixing the two (42 masses of water with respect to 100 mass parts of iron). Part mixture) was filled into a sachet D3 similar to that in Example 8 to obtain an oxygen scavenger package E14. When the obtained oxygen scavenger package E14 was left in the same manner as in Example 8, the oxygen concentration in the bag reached a deoxygenated state of less than 0.1% by volume in 16 hours.

(実施例10)
実施例1にて得られた酸素吸収剤A1を6g、水分供与剤Bを6g各々計量し、両者を混合して得られた脱酸素剤C13(鉄100質量部に対して、水を50質量部配合)を、実施例8と同様の小袋D3に充填し、脱酸素剤包装体E15とした。得られた脱酸素剤包装体E15を実施例8と同様の操作にて放置したところ、16時間で袋内の酸素濃度が0.1容量%未満の脱酸素状態に到達した。
(Example 10)
6 g of oxygen absorbent A1 obtained in Example 1 and 6 g of water donor B were weighed and mixed together to obtain oxygen scavenger C13 (50 masses of water with respect to 100 mass parts of iron). Part mixture) was filled into a sachet D3 similar to that in Example 8 to obtain an oxygen scavenger package E15. When the obtained oxygen scavenger package E15 was left in the same manner as in Example 8, the oxygen concentration in the bag reached a deoxygenated state of less than 0.1% by volume in 16 hours.

(実施例11)
実施例1にて得られた酸素吸収剤A1を6g、水分供与剤Bを7g各々計量し、両者を混合して得られた脱酸素剤C14(鉄100質量部に対して、水を59質量部配合)を、実施例8と同様の小袋D3に充填し、脱酸素剤包装体E16とした。得られた脱酸素剤包装体E16を実施例8と同様の操作にて放置したところ、13時間で袋内の酸素濃度が0.1容量%未満の脱酸素状態に到達した。
(Example 11)
6 g of the oxygen absorbent A1 obtained in Example 1 and 7 g of the water donor B were weighed and mixed together to obtain an oxygen scavenger C14 (59 parts by mass of water with respect to 100 parts by mass of iron). Part mixture) was filled into a sachet D3 similar to that in Example 8 to obtain an oxygen scavenger package E16. When the obtained oxygen scavenger package E16 was left in the same manner as in Example 8, the oxygen concentration in the bag reached a deoxygenated state of less than 0.1% by volume in 13 hours.

(比較例6)
実施例1にて得られた酸素吸収剤A1を6g、水分供与剤Bを1g各々計量し、両者を混合して得られた脱酸素剤C15(鉄100質量部に対して、水を8.3質量部配合)を、実施例8と同様の小袋D3に充填し、脱酸素剤包装体E17とした。得られた脱酸素剤包装体E17を実施例8と同様の操作にて放置したところ、65時間で袋内の酸素濃度が0.1容量%未満の脱酸素状態に到達した。
(Comparative Example 6)
6 g of the oxygen absorbent A1 obtained in Example 1 and 1 g of the water donor B were weighed, and the oxygen scavenger C15 obtained by mixing both of them (8. 3 parts by mass) was filled in the same sachet D3 as in Example 8 to obtain an oxygen scavenger package E17. When the obtained oxygen scavenger package E17 was left in the same manner as in Example 8, the oxygen concentration in the bag reached a deoxygenated state of less than 0.1% by volume in 65 hours.

(比較例7)
実施例1にて得られた酸素吸収剤A1を6g、水分供与剤Bを2g各々計量し、両者を混合して得られた脱酸素剤C16(鉄100質量部に対して、水を17質量部配合)を、実施例8と同様の小袋D3に充填し、脱酸素剤包装体E18とした。得られた脱酸素剤包装体E18を実施例8と同様の操作にて放置したところ、45時間で袋内の酸素濃度が0.1容量%未満の脱酸素状態に到達した。
(Comparative Example 7)
6 g of the oxygen absorbent A1 obtained in Example 1 and 2 g of the water donor B were weighed, and the oxygen absorber C16 obtained by mixing the two (17 parts by mass of water with respect to 100 parts by mass of iron). Part mixture) was filled into a sachet D3 similar to that in Example 8 to obtain an oxygen scavenger package E18. When the obtained oxygen scavenger package E18 was left in the same manner as in Example 8, the oxygen concentration in the bag reached a deoxygenated state of less than 0.1% by volume in 45 hours.

実施例8〜11及び比較例6、7の結果を表2に示す。

Figure 2011057265
Table 2 shows the results of Examples 8 to 11 and Comparative Examples 6 and 7.
Figure 2011057265

表1及び2に示す結果より、実施例1〜11の脱酸素剤包装体は、比較例1〜7の脱酸素剤包装体に比べて、脱酸素時間が極めて短かった。   From the results shown in Tables 1 and 2, the oxygen scavenger packaging bodies of Examples 1 to 11 had an extremely short oxygen scavenging time compared to the oxygen scavenger packaging bodies of Comparative Examples 1 to 7.

特に、実施例1および実施例2のように、酸素吸収剤に含まれる酸化促進剤がナトリウム塩である脱酸素剤包装体により、密閉系容器内の酸素濃度を速やかに0.1容量%未満に到達させることができた。これに対し、比較例1および比較例2のように、酸素吸収剤に含まれる酸化促進剤がカルシウム塩である脱酸素剤は、密閉系容器内の酸素濃度を0.1容量%未満に到達させるためにより長い時間を必要とした。   In particular, as in Example 1 and Example 2, the oxygen concentration in the sealed container is quickly reduced to less than 0.1% by volume by the oxygen absorber package in which the oxidation accelerator contained in the oxygen absorbent is a sodium salt. Was able to reach. On the other hand, as in Comparative Example 1 and Comparative Example 2, the oxygen scavenger in which the oxidation accelerator contained in the oxygen absorbent is a calcium salt reaches an oxygen concentration of less than 0.1% by volume in the sealed container. It took longer time to do.

また実施例1のように、通気性包装材のガーレ式透気度が60秒/100mLである脱酸素剤包装体により、密閉系容器内の酸素濃度を速やかに0.1容量%未満に到達させることができた。これに対し、比較例3のように、通気性包装材のガーレ式透気度が120秒/100mLである脱酸素剤包装体では、密閉系容器内の酸素濃度を0.1容量%未満に到達させるためにより長い時間を必要とした。   Further, as in Example 1, the oxygen concentration in the sealed container quickly reaches less than 0.1% by the oxygen scavenger packaging body in which the Gurley air permeability of the breathable packaging material is 60 seconds / 100 mL. I was able to. On the other hand, as in Comparative Example 3, in the oxygen scavenger packaging body in which the Gurley air permeability of the breathable packaging material is 120 seconds / 100 mL, the oxygen concentration in the sealed container is less than 0.1% by volume. It took longer time to reach.

以上より、本発明の脱酸素剤包装体によれば、炭酸ガス共存下、または低温下などの一般に脱酸素するには過酷な条件下であっても、脱酸素を高速で行うことができることが確認された。   As described above, according to the oxygen scavenger package of the present invention, oxygen can be deoxidized at high speed even under harsh conditions for general deoxygenation such as coexistence with carbon dioxide or at low temperatures. confirmed.

10…包装材、11…収納部、12A…横シール,12B…縦シール、30…容器、40…蓋部、100…脱酸素剤包装体、200…連包体、220…カバーフィルム、300…カバーフィルム付き連包体、400…生肉入り密閉容器、410…密閉容器、M…生肉。   DESCRIPTION OF SYMBOLS 10 ... Packaging material, 11 ... Storage part, 12A ... Horizontal seal, 12B ... Vertical seal, 30 ... Container, 40 ... Lid part, 100 ... Deoxidant packaging body, 200 ... Continuous packaging body, 220 ... Cover film, 300 ... Covered body with cover film, 400 ... sealed container with raw meat, 410 ... sealed container, M ... raw meat.

Claims (7)

脱酸素剤組成物と、前記脱酸素剤組成物を収納する通気性包装材を有する包装材とを備える脱酸素剤包装体であって、
前記脱酸素剤組成物が、鉄粉100質量部に対して、ハロゲン化ナトリウムを0.1〜20質量部、水を20〜80質量部、活性炭を0.01〜130質量部配合させてなり、
前記通気性包装材が60秒/100mL以下のガーレ式透気度を有する、脱酸素剤包装体。
An oxygen scavenger package comprising an oxygen scavenger composition and a packaging material having a breathable packaging material that houses the oxygen scavenger composition,
The oxygen scavenger composition comprises 0.1 to 20 parts by mass of sodium halide, 20 to 80 parts by mass of water, and 0.01 to 130 parts by mass of activated carbon with respect to 100 parts by mass of iron powder. ,
The oxygen-absorbing agent package, wherein the breathable packaging material has a Gurley air permeability of 60 seconds / 100 mL or less.
ハロゲン化ナトリウムが塩化ナトリウムまたは臭化ナトリウムである請求項1記載の脱酸素剤包装体。   The oxygen scavenger package according to claim 1, wherein the sodium halide is sodium chloride or sodium bromide. 脱酸素剤組成物と、前記脱酸素剤組成物を収納する通気性包装材を有する包装材とを備える複数の脱酸素剤包装体を一定方向に沿って帯状に連ねてなる脱酸素剤包装体の連包体であって、
前記脱酸素剤組成物が、鉄粉100質量部に対して、ハロゲン化ナトリウムを0.1〜20質量部、水を20〜80質量部、活性炭を0.01〜130質量部配合させてなり、
前記通気性包装材が60秒/100mL以下のガーレ式透気度を有する、脱酸素剤包装体の連包体。
An oxygen scavenger packaging body comprising a plurality of oxygen scavenger packaging bodies arranged in a band along a certain direction, the oxygen scavenger composition, and a packaging material having a breathable packaging material that houses the oxygen scavenger composition. A continuous package of
The oxygen scavenger composition comprises 0.1 to 20 parts by mass of sodium halide, 20 to 80 parts by mass of water, and 0.01 to 130 parts by mass of activated carbon with respect to 100 parts by mass of iron powder. ,
A continuous package of oxygen scavenger packaging bodies, wherein the breathable packaging material has a Gurley air permeability of 60 seconds / 100 mL or less.
ハロゲン化ナトリウムが塩化ナトリウムまたは臭化ナトリウムである請求項3記載の脱酸素剤包装体の連包体。   The package of oxygen scavenger packages according to claim 3, wherein the sodium halide is sodium chloride or sodium bromide. 請求項3又は4に記載の脱酸素剤包装体の連包体と、
前記脱酸素剤包装体の前記通気性包装材の各々を覆うように設けられるカバーフィルムとを備えるカバーフィルム付き連包体であって、
前記カバーフィルムのガーレ式透気度が、前記通気性包装材のガーレ式透気度よりも大きい、カバーフィルム付き連包体。
The continuous package of the oxygen scavenger package according to claim 3 or 4,
A cover film-attached package comprising a cover film provided to cover each of the breathable packaging materials of the oxygen scavenger package,
The cover film-attached continuous package, wherein the Gurley air permeability of the cover film is larger than the Gurley air permeability of the breathable packaging material.
生肉と、請求項1又は2に記載の脱酸素剤包装体とを密閉容器中に密封包装してなる生肉入り密閉容器であって、
前記密閉容器内の雰囲気が、二酸化炭素濃度が20〜50容量%である、生肉入り密閉容器。
It is a sealed container containing raw meat and a sealed container containing raw meat formed by sealing and packaging the oxygen scavenger package according to claim 1 or 2 in a sealed container.
A sealed container with raw meat, wherein the atmosphere in the sealed container has a carbon dioxide concentration of 20 to 50% by volume.
請求項6記載の生肉入り密閉容器を−10〜5℃の温度で保存することにより生肉を保存する生肉の保存方法。   The preservation | save method of the raw meat which preserve | saves raw meat by preserving the airtight container with raw meat of Claim 6 at the temperature of -10-5 degreeC.
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JP2013172683A (en) * 2012-02-27 2013-09-05 Freund Corp Food quality retaining agent
CN103767041A (en) * 2014-01-03 2014-05-07 广东广益科技实业有限公司 Deoxidization preservative suitable for low-humidity environment and preparation method thereof
CN105360874A (en) * 2014-08-21 2016-03-02 武汉凌科达科技有限公司 Deoxidizer for food fresh keeping
WO2017061219A1 (en) * 2015-10-09 2017-04-13 三菱瓦斯化学株式会社 Packaging bag
CN108025855A (en) * 2015-10-09 2018-05-11 三菱瓦斯化学株式会社 Packaging bag
JPWO2017061219A1 (en) * 2015-10-09 2018-07-26 三菱瓦斯化学株式会社 Packaging bag
JP6195042B1 (en) * 2016-03-30 2017-09-13 三菱瓦斯化学株式会社 Oxygen absorber composition
WO2017169015A1 (en) * 2016-03-30 2017-10-05 三菱瓦斯化学株式会社 Deoxidizer composition
US11077424B2 (en) 2016-03-30 2021-08-03 Mitsubishi Gas Chemical Company, Inc. Oxygen scavenger composition
JP2018002897A (en) * 2016-07-04 2018-01-11 三菱瓦斯化学株式会社 Composition for expansion agent and expansion agent using the same
WO2022181429A1 (en) * 2021-02-25 2022-09-01 三菱瓦斯化学株式会社 Oxygen scavenger powder

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