JP4164619B2 - Method for preventing destruction of frozen food or its packaging - Google Patents

Method for preventing destruction of frozen food or its packaging Download PDF

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Publication number
JP4164619B2
JP4164619B2 JP2000226411A JP2000226411A JP4164619B2 JP 4164619 B2 JP4164619 B2 JP 4164619B2 JP 2000226411 A JP2000226411 A JP 2000226411A JP 2000226411 A JP2000226411 A JP 2000226411A JP 4164619 B2 JP4164619 B2 JP 4164619B2
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Japan
Prior art keywords
frozen
packaging
dumplings
skin
chinese dim
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JP2000226411A
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JP2002034532A (en
Inventor
直樹 和田
潤 植田
英美 太田
猛 玉木
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Ajinomoto Co Inc
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Ajinomoto Co Inc
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Description

【0001】
【発明の属する技術分野】
本発明は、中華点心類などの冷凍食品又はその包材の破壊防止方法に関するものである。
【0002】
【従来の技術】
従来、冷凍した中華点心類、例えば焼売を、例えばナイロンとポリエチレンのラミネートフィルムなどの材質のボイリングパックとして真空包装する際には、凍結したまま袋に入れると焼売の皮に尖った部分があるため、輸送中の衝撃などにより、ボイリングパックにピンホールが発生しやすく、ボイル調理(喫食や解凍のためにする加熱)ができなくなるという問題があった。
【0003】
また、従来、冷凍した中華点心類、例えば餃子をトレー入りではなく、バラバラに10〜100個程度、直接大袋包装する際には凍結したまま袋に入れてしまうため、その際の衝撃によりあるいは流通過程における相互の衝突により餃子の皮の合わせ目部分が割れてしまい、品質が低下するという問題があった。
【0004】
【発明が解決しようとする課題】
前項記載の従来技術の背景下に、本発明の目的は上記のような材質の容器にボイリングパックされた冷凍中華点心類などの冷凍食品は、例えば焼売のように皮に尖った部分があると輸送中の衝撃などによりそのような皮の尖った部分が原因でボイリングパックにピンホールが発生してしまい、延いては、ボイル調理時にボイリングパック内に水が浸透して調理不可能となってしまう問題があるため、そのようなピンホールが発生しにくい包装方法、換言すれば、包材の破壊防止方法を提供することにある。
【0005】
本発明の目的は、また、冷凍中華点心類などの冷凍食品は、例えば餃子のように皮に合わせ目部分があると、包装時にまたは流通過程においてその合わせ目部分が割れてしまうと見栄えがよくないだけでなく、中具が露出してしまい、延いては水餃子にできなくなるなどの問題があるため、冷凍した餃子をバラバラに大袋包装しても皮の合わせ目が割れにくい包装方法、換言すれば、冷凍食品の破壊防止方法を提供することにある。
【0006】
【課題を解決するための手段】
本発明者は、上記課題を解決すべく鋭意検討した結果、上記二つ目の目的はともに冷凍した中華点心類などの冷凍食品を包装する際、予め一旦表面を弱解凍することで達成することができることを、詳述すると、冷凍した中華点心類などの冷凍食品、例えば焼売、の表面を弱解凍することで皮を軟らかくして皮の尖った部分をなくし、これをボイリングパック包装をすることで、流通時に衝撃を受けてもボイリングパックにピンホールが発生しにくいことを、更には、冷凍した中華点心類などの冷凍食品、例えば餃子、を表面を弱解凍することで皮の合わせ目を軟らかくし、これを袋包装することで、包装時にまたは流通過程において衝撃を受けても皮の合わせ目があまり割れないことを見出し、このような知見に基づいて本発明を完成するに至った。
【0007】
すなわち、本発明は、中華点心類の冷凍食品を包装する際、一旦該冷凍食品の表面を弱解凍してから包装することを特徴とする中華点心類の冷凍食品又はその包材の破壊防止方法に関する。
【0008】
以下、本発明を詳細に説明する。
【0009】
本発明に関して中華点心類とは特に限定されるものではないが、鶏、豚、牛などの畜肉、各種魚介類およびそのすり身などの魚介肉、ニラ、キャベツ、タケノコ、シイタケ、タマネギなどの野菜等を中具に含む、蒸し餃子、焼き餃子などの餃子、春巻、焼売、饅頭等を例示することができる。また、その皮とは、小麦粉や米粉、澱粉等の穀粉に水やその他の副原料を合わせ常法に従って混練し、圧延したものであり、本発明の所期の効果の奏される限りはその性状等によって特に限定されるものではない。本発明の包装方法の対象は、このような中華点心類の冷凍品である。
【0010】
先ず、特にボイリングパックにピンホールの発生するのを防止するのに有効な本発明の態様を説明する。
【0011】
凍結して固く尖った部分を皮にもつ冷凍中華点心類、例えば焼売、の表面の弱解凍については、表面を−5〜60℃程度、通常は−3〜20℃程度になるように、そして中心は−5〜−80℃、通常は−5〜−40℃になるように加温すればよい。
【0012】
一旦凍結した焼売を加温して表面を弱解凍する方法としては、蒸し、ボイル、熱風吹きつけ等を挙げることができるが、好ましくは、温度および時間をコントロールしやすく、装置の取り扱いの容易な蒸気による蒸しを通常用いることができる。また、蒸気温度は特に問わないが、通常、90〜100℃の蒸気が用いられる。時間については、表面が弱解凍され、中心が凍結しているような状態に調整すればよく、1〜180秒程度であり、通常、1〜30秒である。
【0013】
包装方法については商品設計に従い、凍結後表面を弱解凍した焼売を適宜3〜100個程度ボイリングパックに真空包装すればよい。真空包装機は通常のものを使うことができ、特に機種や方法を問わない。
【0014】
なお、以上は、通常の典型的な流通形態である、焼売の冷凍食品をボイリングパックに真空包装をした場合のピンホールの発生とその予防を想定しての説明であるが、本発明のこの態様は、もちろんこれに限らず、包装にピンホールが生ずることが不都合であるその他の冷凍中華点心類およびその他の冷凍食品、例えば、小麦粉麺および/または小麦粉麺で包まれた形態の冷凍食品、例えばラビオリ、サモサなどの包装に広く適用することができる。
【0015】
次に、皮の合わせ目部分の割れるのを防止するのに有効な本発明の態様を説明する。
【0016】
凍結して固くなり、皮の合わせ目が割れやすくなっている冷凍中華点心類、例えば餃子、の表面の弱解凍については、先に説明した場合と同じく、表面を−5〜60℃程度、通常−3〜20℃程度になるように、そして中心は−5〜−80℃、通常は−5〜−40℃になるように加温すればよい。
【0017】
一旦凍結した餃子を加温して表面を弱解凍する方法としては、これまた先に説明した場合と同じく、蒸し、ボイル、熱風吹きつけ等を挙げることができるが、好ましくは、温度および時間をコントロールしやすく、装置の取り扱いの容易な蒸気による蒸しを通常用いることができる。また、蒸気温度は特に問わないが、通常、90〜100℃の蒸気が用いられる。時間についても、これまた先に説明した場合と同じく、表面が弱解凍され、中心が凍結しているような状態に調整すればよく、1〜180秒程度であり、通常、1〜30秒である。
【0018】
包装方法については商品設計に従い、バラバラに凍結後、表面を弱解凍した餃子を適宜10〜100個程度、袋包装すればよい。人手で袋に入れてもよいし、生産性をあげるため例えば縦ピロー包装機を使用して包装することもできる。
【0019】
なお、本発明のこの態様も、餃子に限らず、その他の冷凍した中華点心類および広くその他の冷凍食品、例えば、ラビオリ、サモサなどに同様の問題が生ずるときに、その解決法として有用なことはいうまでもない。
【0020】
【実施例】
以下、実施例により本発明を更に説明する。
【0021】
実施例1(冷凍焼売の包装)
常法により調製した1個15gの焼売を−35℃のフリーザーで60分凍結し、−25℃の冷凍焼売を作った。これを98℃の蒸気で15秒間蒸し、焼売皮が軟らかい状態とした。皮の温度は3℃であり、焼売の中心温度は−22℃であった。これを20個とり、200mm×350mmのナイロン15μm/ポリエチレン50μmのボイリングパック袋に包装した(試験区1)。また、比較のため、凍結しただけで蒸さなかったもの(対区1)についても同様に包装した。
【0022】
これらを各20袋ずつダンボール包装したものを40cmの高さから10回落下させ、ピンホールが発生した袋の数を調べた。その結果を下記第1表に示す。
【0023】

Figure 0004164619
【0024】
第1表に示したように、本発明の包装方法により包装した冷凍焼売はピンホールが発生しにくく、ボイル調理しても問題がなかった。
【0025】
実施例2(冷凍餃子の包装)
常法により調製した餃子を−35℃のフリーザーで60分凍結し、−25℃の冷凍餃子を作った。これを98℃の蒸気で5秒間蒸し、餃子皮が軟らかい状態とした。皮の温度は0℃であり、餃子の中心温度は−24℃であった。これを50個とり、縦ピロー包装機を使用し、250mm×300mmのポリエチレン製袋に包装した(試験区1)。また、比較のため、凍結しただけで蒸さなかったもの(対区1)についても50個を同様に包装した。
【0026】
包装時における餃子の皮の合わせ目が割れた個数を計測し、また定量的に評価する目的で皮の重量を測定した。その結果を下記第2表に示す。
【0027】
Figure 0004164619
【0028】
第2表に示したように、本発明により包装した冷凍餃子は皮の合わせ目が割れにくく、外観が良好であった。
【0029】
【発明の効果】
本発明の方法により冷凍食品の、例えば、中華点心類の冷凍焼売、をボイリングパックに真空包装すると、冷凍焼売の皮がとがっていないために流通時に衝撃を受けてもボイリングパックにピンホールが発生しにくいため、ボイル調理できる冷凍焼売などの冷凍食品を提供することができる。
【0030】
また、本発明の方法で冷凍食品の、例えば、中華点心類の冷凍餃子、を包装すると、冷凍餃子の皮が弱解凍されて軟らかくなっているため、袋入り包装する際にも、また流通過程における衝撃によっても皮の合わせ目部分が割れにくくなり、見栄えがよく、またその後の熱水処理(水餃子)に際しても形崩れのしない冷凍餃子などの冷凍食品を提供することができる。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for preventing the destruction of frozen foods such as Chinese dim sums or their packaging materials.
[0002]
[Prior art]
Traditionally, when vacuum-packing frozen Chinese dim sum, for example, as a boiling pack made of a material such as nylon and polyethylene laminate film, if you put it in a bag while it is frozen, there will be a pointed portion on the skin of the sale. There is a problem that pinholes are likely to be generated in the boiling pack due to impact during transportation, and boil cooking (heating for eating and thawing) cannot be performed.
[0003]
Conventionally, frozen Chinese dim sum, for example, dumplings are not put into a tray, but about 10 to 100 pieces in pieces. When directly packaging large bags, they are put in a frozen bag. There was a problem that the joint portion of the dumpling skin was broken by mutual collision in the process, and the quality was lowered.
[0004]
[Problems to be solved by the invention]
Under the background of the prior art described in the preceding paragraph, the object of the present invention is that frozen foods such as frozen Chinese dim sum packed in a container of the above-described material have a pointed portion on the skin, such as for example, for sale. Pinholes are generated in the boiling pack due to such pointed parts of the skin due to impact during transportation, and as a result, water penetrates into the boiling pack during boiling cooking, making cooking impossible. Therefore, an object of the present invention is to provide a packaging method in which such pinholes are unlikely to occur, in other words, a packaging material destruction prevention method.
[0005]
The object of the present invention is that frozen foods such as frozen Chinese dim sums have a good appearance if they have a joint part on the skin, such as dumplings, and the joint part breaks during packaging or in the distribution process. Not only is there a problem such as the contents being exposed, which makes it impossible to make boiled dumplings. Then, it is providing the destruction prevention method of frozen food.
[0006]
[Means for Solving the Problems]
As a result of intensive studies to solve the above problems, the present inventor has achieved the second object by weakly thawing the surface once in advance when packaging frozen foods such as frozen Chinese dim sum. In detail, it is possible to soften the skin by gently thawing the surface of frozen foods such as frozen Chinese dim sum, for example, bake, to eliminate the pointed portion of the skin, and to package this in a boiling pack In addition, it is difficult for pinholes to occur in the boiling pack even when subjected to impact during distribution, and furthermore, the frozen joints of frozen frozen foods such as Chinese dim sums, such as dumplings, are weakly thawed to make the seam joint By softening and bag-wrapping this, it is found that the seam of the skin does not break much even when impacted during packaging or in the distribution process, and the present invention is completed based on such knowledge Led was.
[0007]
That is, the present invention provides a method for preventing the destruction of frozen foods of Chinese dim sums or their packaging materials, characterized in that, when packaging frozen foods of Chinese dim sums, the surface of the frozen foods is once weakly thawed before packaging. About.
[0008]
Hereinafter, the present invention will be described in detail.
[0009]
Chinese dim sum in the present invention is not particularly limited, but meat such as chicken, pork and cow, various seafood and seafood such as surimi, vegetables such as leek, cabbage, bamboo shoot, shiitake, onion, etc. Examples include dumplings such as steamed dumplings and grilled dumplings, spring rolls, shochu, and buns. In addition, the skin is a mixture of wheat flour, rice flour, starch or other flour with water and other auxiliary ingredients, kneaded according to a conventional method, and rolled, and as long as the desired effect of the present invention is exhibited, It is not particularly limited by properties or the like. The object of the packaging method of the present invention is such a frozen product of Chinese dim sum.
[0010]
First, an embodiment of the present invention effective for preventing the occurrence of pinholes in the boiler pack will be described.
[0011]
For the frozen thawing of frozen Chinese dim sums that have frozen and hard-pointed skin, such as bake, the surface should be about -5-60 ° C, usually -3-20 ° C, and What is necessary is just to heat so that a center may become -5 to -80 degreeC, normally -5 to -40 degreeC.
[0012]
As a method of warming the frozen once-frozen and weakly thawing the surface, steaming, boiling, hot air blowing, etc. can be mentioned, but preferably the temperature and time are easy to control and the device is easy to handle. Steaming with steam can usually be used. Moreover, although steam temperature is not ask | required in particular, 90-100 degreeC steam is normally used. The time may be adjusted to a state where the surface is weakly thawed and the center is frozen, and is about 1 to 180 seconds, usually 1 to 30 seconds.
[0013]
About the packaging method, according to product design, it may be vacuum-packed into a boiling pack of about 3 to 100 pieces of hot-selling whose surface is weakly thawed after freezing. The vacuum packaging machine can use a normal thing, and does not ask | require a model and a method in particular.
[0014]
The above description is based on the assumption of the occurrence of pinholes and their prevention in the case of vacuum packaging of frozen frozen foods in a boiler pack, which is a typical typical distribution form. The embodiment is not limited to this, of course, and other frozen Chinese dim sums and other frozen foods that are inconvenient for producing pinholes in the packaging, for example, frozen noodles and / or frozen foods in a form wrapped with flour noodles, For example, it can be widely applied to packaging such as ravioli and samosa.
[0015]
Next, an embodiment of the present invention effective for preventing cracking of the joint portion of the skin will be described.
[0016]
About the weak thawing of the surface of frozen Chinese dim sums, such as dumplings, which are frozen and hardened, and the skin joints are easy to break, the surface is usually about −5 to 60 ° C., as described above. What is necessary is just to heat so that it may become about -3-20 degreeC and a center may be -5 to -80 degreeC, and usually -5 to -40 degreeC.
[0017]
As a method of warming the frozen dumplings and weakly thawing the surface, steaming, boiling, hot air blowing, etc. can be mentioned as in the case described above. Preferably, the temperature and time are set. Steaming with steam, which is easy to control and easy to handle the apparatus, can usually be used. Moreover, although steam temperature is not ask | required in particular, 90-100 degreeC steam is normally used. As with the case described above, the time may be adjusted so that the surface is weakly thawed and the center is frozen. It is about 1 to 180 seconds, and usually 1 to 30 seconds. is there.
[0018]
About the packaging method, according to product design, after freezing apart, about 10 to 100 dumplings whose surface is weakly thawed may be appropriately packaged. It may be put in a bag by hand, or may be packaged by using, for example, a vertical pillow packaging machine in order to increase productivity.
[0019]
It should be noted that this aspect of the present invention is useful not only for dumplings but also for other frozen Chinese dim sums and a wide variety of other frozen foods such as ravioli, samosa, etc. Needless to say.
[0020]
【Example】
The following examples further illustrate the present invention.
[0021]
Example 1 (packaging of frozen shochu)
A 15 g piece of baked rice prepared by a conventional method was frozen in a -35 ° C freezer for 60 minutes to produce a -25 ° C frozen baked rice. This was steamed with steam at 98 ° C. for 15 seconds to make the grilled skin soft. The skin temperature was 3 ° C., and the center temperature for baking was −22 ° C. Twenty of these were taken and packaged in a 200 mm × 350 mm nylon 15 μm / polyethylene 50 μm boiler pack bag (test section 1). For comparison, it was packaged similarly for those that were not steamed just frozen (control group 1).
[0022]
Each of these 20 bags each in a cardboard package was dropped 10 times from a height of 40 cm, and the number of bags with pinholes was examined. The results are shown in Table 1 below.
[0023]
Figure 0004164619
[0024]
As shown in Table 1, the frozen shochu packaged by the packaging method of the present invention is less prone to pinholes, and there was no problem even when boiled.
[0025]
Example 2 (packaging of frozen dumplings)
The dumplings prepared by a conventional method were frozen in a −35 ° C. freezer for 60 minutes to prepare frozen dumplings at −25 ° C. This was steamed with steam at 98 ° C. for 5 seconds to make the dumpling skin soft. The skin temperature was 0 ° C, and the center temperature of the dumplings was -24 ° C. 50 of these were taken and packaged in a 250 mm × 300 mm polyethylene bag using a vertical pillow packaging machine (test section 1). For comparison, it was packaged in the same manner 50 also for those that did not steamed just frozen (control group 1).
[0026]
The number of broken seams of the dumpling skin during packaging was measured, and the weight of the skin was measured for the purpose of quantitative evaluation. The results are shown in Table 2 below.
[0027]
Figure 0004164619
[0028]
As shown in Table 2, the frozen dumplings packaged according to the present invention were difficult to break the skin joints and had a good appearance.
[0029]
【The invention's effect】
When frozen foods such as Chinese dim sum frozen in a boiling pack are vacuum-packed by the method of the present invention in a boiling pack, a pinhole is generated in the boiling pack even if it is subjected to an impact during distribution because the frozen baking is not peeled off. Therefore, frozen foods such as frozen fried food that can be boiled can be provided.
[0030]
In addition, when packaging frozen foods such as Chinese dim sum frozen dumplings by the method of the present invention, the frozen dumpling skin is weakly thawed and softened. It is possible to provide frozen foods such as frozen dumplings that are less likely to break due to the impact of, and have good appearance, and that do not lose shape during subsequent hot water treatment (boiled dumplings).

Claims (4)

中華点心類の冷凍食品を包装する際、一旦該冷凍食品を、表面は−5〜60℃になるように、そして中心は−5〜−80℃になるように加温することにより該表面を弱解凍してから包装することを特徴とする中華点心類の冷凍食品又はその包材の破壊防止方法。When packaging frozen foods of Chinese dim sum, once the frozen food is warmed so that the surface is at -5 to 60 ° C and the center is at -5 to -80 ° C, A method for preventing the destruction of frozen foods of Chinese dim sum or their packaging materials, characterized by packaging after weak thawing. 該中華点心類が焼売であることを特徴とする請求項1記載の中華点心類の冷凍食品又はその包材の破壊防止方法。  2. The method for preventing destruction of frozen foods of Chinese dim sums or packaging materials thereof, wherein the Chinese dim sums are sold by baking. 該中華点心類が餃子であることを特徴とする請求項1記載の中華点心類の冷凍食品又はその包材の破壊防止方法。  The method for preventing destruction of frozen foods of Chinese dim sums or packaging materials thereof, wherein the Chinese dim sums are dumplings. 該表面弱解凍の仕方が蒸しであり、蒸し時間が1〜180秒であることを特徴とする請求項1〜3のいずれかに記載の中華点心類の冷凍食品又はその包材の破壊防止方法。  The method for preventing destruction of frozen foods of Chinese dim sum or packaging materials according to any one of claims 1 to 3, wherein the method of weak thawing of the surface is steaming and the steaming time is 1 to 180 seconds .
JP2000226411A 2000-07-27 2000-07-27 Method for preventing destruction of frozen food or its packaging Expired - Lifetime JP4164619B2 (en)

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