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JP2004329150A - Method for retort sterilization with fully filled high-pressure water and apparatus therefor - Google Patents

Method for retort sterilization with fully filled high-pressure water and apparatus therefor Download PDF

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Publication number
JP2004329150A
JP2004329150A JP2003132088A JP2003132088A JP2004329150A JP 2004329150 A JP2004329150 A JP 2004329150A JP 2003132088 A JP2003132088 A JP 2003132088A JP 2003132088 A JP2003132088 A JP 2003132088A JP 2004329150 A JP2004329150 A JP 2004329150A
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Japan
Prior art keywords
retort
sterilization
hot water
temperature
heat
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JP2003132088A
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Japanese (ja)
Inventor
Jun Kamimukai
潤 上向井
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UK TEKUNO KK
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UK TEKUNO KK
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a retort sterilization method and a retort sterilization apparatus having increased applicability and flexibility such as the shortening of the sterilization time, elimination of the temperature difference in a retort sterilization pot, shortening of the time necessary for elevating the center temperature of the content of the retort, the simplified apparatus structure, the reduction of the apparatus cost, and the flexible design of the retort sterilization apparatus meeting various retort food factories. <P>SOLUTION: The apparatus for the retort sterilization treatment is provided with a heat-accumulation tank 101 to heat and pressurize water of normal temperature to 0.186 MPa and 120-130°C and store the hot pressurized water, a retort treatment tank 102 to hold retort pouches and sterilize the pouches and an apparatus to circulate the hot water stored in the heat-accumulation tank in a manner to keep the retort treatment tank 102 to a state filled with the hot water. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明が属する技術分野】本発明はレトルト殺菌方法及びその装置に関する。
【0002】
【従来の技術】
従来のレトルト殺菌装置には、殺菌釜にレトルトパウチを充填し高温の水蒸気を噴きつけて殺菌する蒸気式と呼ばれるものがある(例えば、特許文献1参照。)。
また、レトルトパウチを充填した殺菌釜(圧力釜)に熱水を注入し蒸気を入れて一定の温度に加熱して殺菌する熱水式と呼ばれるものがある(例えば、非特許文献1、非特許文献2参照。)。
上記のように、いずれのレトルト殺菌装置においても、レトルトパウチを充填する容器(レトルト釜)自体に熱源を必要とされるものである。
また、レトルト釜が熱水で満水ではなく、レトルトパウチが完全に熱水に浸っていない。
【0003】
以下、従来のレトルト殺菌装置について説明する。特許文献1におけるレトルト殺菌装置はレトルト釜に噴射ノズルを具備して加熱媒体をレトルトパウチに向けて噴射する方式である。
【0004】
非特許文献1において、大きな釜(圧力釜)が二段に重なっている。上の釜には熱水(摂氏120度〜摂氏130度程度)が満たされている。下の釜にレトルトパウチが入り、殺菌釜を閉めると、すぐに上の熱水が注入される。最初は少しばかり熱水の温度が下がるが、蒸気を入れて一定の温度になるまで加熱する。その温度に達したら、所定の時間その温度を保つように蒸気で調節する方式である。
【0005】
【特許文献1】
特許公開平8−238(請求項1)
【非特許文献1】
「レトルト食品を知る」,日本缶詰協会レトルト食品部会編,1997年,p.39
【非特許文献2】
「調理殺菌装置カタログ」,株式会社サムソン,2003年4月,p.6
【0006】
【発明が解決しようとする課題】上記従来例では、いずれもレトルト釜自体に熱源装置を必要とし、殺菌装置自体が殺菌の対象となるレトルトパウチが占める容積に比べて大きくなるという問題点があった。
【0007】又、レトルト釜を殺菌処理に必要な温度(摂氏120度〜摂氏130度)に加熱するのに必要な時間が長いという問題点があった。
【0008】又、レトルト釜が熱水で満水でないため、レトルト釜内に温度のむらが発生するという問題点があった。
【0009】又、レトルトパウチが完全に熱水に浸っていないためレトルトパウチ内容物の中心温度上昇に時間を要するという問題点があった。
【0010】又、殺菌処理に必要な温度(摂氏120度〜摂氏130度)を維持する為の制御方法及び制御装置が複雑であり装置のコストが高くなるという問題点があった。
【0011】又、従来の技術で掲げた熱水式においては、熱水が満たされている釜とレトルト釜にそれぞれ熱量管理を必要とするため全体装置として構成が複雑であり、それゆえ装置のコストが高くなるという問題点があった。
【0012】本発明の目的は上記のような問題点を解消し、蓄熱タンクに貯蔵された熱水(摂氏120度〜摂氏130度)をレトルトパウチが充填されたレトルト処理槽(圧力容器)が満水状態に保たれるように循環させることにより殺菌処理時間を短縮し、レトルト殺菌釜内の温度のむらを無くし、レトルト内容物の中心温度上昇に要する時間を短縮し、装置構成を簡素化し、装置のコストを低減し、さらにそれぞれのレトルト食品工場に適応したレトルト殺菌装置を提供することが可能になる等、拡張性が高く、柔軟性に富んだレトルト殺菌方法及びレトルト殺菌装置を提供しようとするものである。
【0013】
【課題を解決するための手段】上記目的を達成するため第1発明では、蓄熱タンクに貯蔵された熱水(摂氏120度〜摂氏130度)をレトルトパウチが充填されたレトルト処理槽(圧力容器)が満水状態に保たれるように循環させる殺菌処理、レトルトパウチが充填されたレトルト処理槽(圧力容器)が満水状態に保たれるように常温水を注入してレトルトパウチを冷却することを特徴とするレトルト殺菌方法とした。
【0014】第2発明では、熱水(摂氏120度〜摂氏130度)を貯蔵する蓄熱タンクを設け、レトルトパウチを充填して殺菌処理するためのレトルト処理槽(圧力容器)を設け、蓄熱タンクに貯められた熱水(摂氏120度〜摂氏130度)をレトルトパウチが充填されたレトルト処理槽(圧力容器)が満水状態に保たれるように循環させる装置を設け、レトルトパウチが充填されたレトルト処理槽(圧力容器)が満水状態に保たれるように常温水を注入する装置を設け、一連のレトルト殺菌処理を処理するレトルト殺菌装置とした。
【0015】
【発明の実施の形態】図1が第2発明の概略図である。常温水を0.186メガパスカルに加圧した状態で加熱して摂氏120度〜摂氏130度の熱水を生成して貯蔵する蓄熱タンク101を設け、レトルトパウチを充填して殺菌処理するためのレトルト処理槽102(圧力容器)を設け、蓄熱タンク101に貯蔵された摂氏120度〜摂氏130度の熱水をレトルトパウチが充填されたレトルト処理槽102(圧力容器)が満水状態に保たれるように循環させる装置を設け、レトルトパウチが充填されたレトルト処理槽102(圧力容器)が満水状態に保たれるように常温水を注入する装置を設けてレトルト殺菌処理工程を行う。
【0016】
【実施例】本発明の実施例を図面にもとづき説明する。図1にもとづき本発明の各処理工程と手順を示す。
【0017】蓄熱タンクを常温水で満水にして、バルブ111、バルブ112を開放し、バルブ113、バルブ114、バルブ115、バルブ116を閉めた状態で、ポンプ103を運転する。
【0018】水の流れる向きは、通過する継ぎ手の順序を用いて表わすと、継ぎ手901、継ぎ手902、継ぎ手903、継ぎ手904の順序である。
【0019】スチームパイプ301から摂氏150度のスチームを蓄熱タンクに放出し、蓄熱タンク101内の水を内部圧力0.186メガパスカル、摂氏120度まで加圧加熱して圧力及び温度を常時維持する。
【0020】レトルト処理槽102の蓋を開けて、レトルトパウチを充填して蓋を閉める。
【0021】バルブ116を開放しスチームパイプ401を通じてレトルト処理槽102にスチームを送り、蓄熱タンク101とレトルト処理槽102が同一の内部圧力0.186メガパスカルを維持する状態にする。
【0022】バルブ116を閉じて、バルブ113、バルブ114を記述の順序で開放する。バルブ112を閉じる。バルブ115は閉じたままとする。
【0023】蓄熱タンク101に貯まっている高圧水が、レトルト処理槽102が内部圧力0.186メガパスカル、摂氏120度の高圧水で満水になった状態で循環する。
【0024】高圧水の流れる向きは、通過する継ぎ手の順序を用いて表わすと、継ぎ手901、継ぎ手902、継ぎ手903、継ぎ手905、継ぎ手906、継ぎ手907の順序でレトルト処理槽102に入り、継ぎ手908、継ぎ手909、継ぎ手904の順序で蓄熱タンク101に戻るという順序である。
【0025】この状態をレトルト処理槽102に充填されているレトルトパウチ104の殺菌が完了するまで維持する。
【0026】バルブ116を開放し、蓄熱タンク101とレトルト処理槽102の内部圧力を均一にする。
【0027】バルブ115を開放して、バルブ111を閉じて、バルブ112を開放して、バルブ113を閉じて、バルブ114を閉じる。
【0028】レトルト処理槽102に充填されている高圧水が蓄熱タンクに排出される。高圧水の流れる向きは、通過する継ぎ手の順序を用いて表わすと、レトルト処理槽102から、継ぎ手907、継ぎ手902、継ぎ手903、継ぎ手904の順序で、蓄熱タンク101に戻るという順序である。
【0029】レトルト処理槽102が摂氏120度、内部圧力0.186メガパスカルのスチームで充填された状態になるまでこの状態を維持する。
【0030】バルブ115を閉じて、バルブ111を開放する。バルブ116を閉じる。
【0031】高圧水の流れる向きは、通過する継ぎ手の順序を用いて表わすと、蓄熱タンク101から、継ぎ手901、継ぎ手902、継ぎ手903、継ぎ手904の順序で、蓄熱タンク101に戻るという順序である。
【0032】バルブ117を開放して、レトルト処理槽の内部圧力を維持したまま、常温水をレトルト処理槽102に注入する。常温水の流れる向きは、常温水パイプ501からレトルト処理槽に入って常温水パイプ502を通じてレトルト処理槽から放出される。
【0033】レトルトパウチが適切な温度に冷却されるまでこの状態を維持する。
【0034】バルブ117を閉じて、バルブ118を開放し、レトルト処理槽に充填されている水をレトルト処理槽が空になるまで排水する。
【0035】レトルト処理槽102の蓋を開けて、レトルトパウチを取り出す。
【0036】
【発明の効果】第1発明では、蓄熱タンクに貯蔵された熱水(摂氏120度〜摂氏130度)をレトルトパウチが充填されたレトルト処理槽(圧力容器)が満水状態に保たれるように循環させることにより殺菌処理時間を短縮し、レトルト殺菌釜内の温度のむらを無くし、レトルト内容物の中心温度上昇に要する時間を短縮し、装置構成を簡素化し、装置のコストを低減し、さらにそれぞれのレトルト食品工場に適応したレトルト殺菌装置を提供することが可能になる等、拡張性が高く、柔軟性に富んだレトルト殺菌方法が提供された。
【0037】第2発明では、蓄熱タンクに貯蔵された熱水(摂氏120度〜摂氏130度)をレトルトパウチが充填されたレトルト処理槽(圧力容器)が満水状態に保たれるように循環させることにより殺菌処理時間を短縮し、レトルト殺菌釜内の温度のむらを無くし、レトルト内容物の中心温度上昇に要する時間を短縮し、装置構成を簡素化し、装置のコストを低減し、さらにそれぞれのレトルト食品工場に適応したレトルト殺菌装置を提供することが可能になる等、拡張性が高く、柔軟性に富んだレトルト殺菌装置が提供された。
【図面の簡単な説明】
【図1】第2発明の概略図
【符号の説明】
101 蓄熱タンク
102 レトルト処理槽
103 ポンプ
104 レトルトパウチ
111,112,113,114,115,116,117,118 バルブ
[0001]
The present invention relates to a method and an apparatus for sterilizing retort.
[0002]
[Prior art]
As a conventional retort sterilizing apparatus, there is a so-called steam type in which a sterilizing pot is filled with a retort pouch, and high-temperature steam is blown to sterilize the sterilizing pot (for example, see Patent Document 1).
In addition, there is a so-called hot water type in which hot water is injected into a sterilizing pot (pressure cooker) filled with a retort pouch, steam is supplied, and the steam is heated to a certain temperature and sterilized (for example, Non-Patent Document 1, Non-Patent Document 1). Reference 2).
As described above, in any of the retort sterilizers, a container (retort pot) for filling the retort pouch itself requires a heat source.
Also, the retort pot is not full of hot water, and the retort pouch is not completely immersed in hot water.
[0003]
Hereinafter, a conventional retort sterilizer will be described. The retort sterilizer in Patent Literature 1 is a system in which an injection nozzle is provided in a retort pot and the heating medium is injected toward the retort pouch.
[0004]
In Non-Patent Document 1, a large kettle (pressure cooker) overlaps in two stages. The upper kettle is filled with hot water (about 120 to 130 degrees Celsius). When the retort pouch is put in the lower pot and the sterilizing pot is closed, the hot water is poured immediately. At first, the temperature of the hot water slightly decreases, but steam is added to heat it to a certain temperature. When the temperature is reached, the temperature is adjusted with steam so as to maintain the temperature for a predetermined time.
[0005]
[Patent Document 1]
Patent Publication Hei 8-238 (Claim 1)
[Non-patent document 1]
“Knowing Retort Foods,” edited by the Japan Canners Association Retort Food Section, 1997, p. 39
[Non-patent document 2]
"Cooking and Sterilizing Equipment Catalog", Samsung Co., Ltd., April 2003, p. 6
[0006]
In each of the above conventional examples, a heat source device is required for the retort pot itself, and there is a problem that the sterilizer itself becomes larger than the volume occupied by the retort pouch to be sterilized. Was.
Another problem is that the time required to heat the retort pot to the temperature required for the sterilization treatment (120 ° C. to 130 ° C.) is long.
In addition, since the retort pot is not filled with hot water, there is a problem that the temperature of the retort pot becomes uneven.
Further, since the retort pouch is not completely immersed in hot water, there is a problem that it takes time to raise the center temperature of the contents of the retort pouch.
Further, there is a problem that a control method and a control device for maintaining a temperature (120 degrees Celsius to 130 degrees Celsius) required for the sterilization treatment are complicated, and the cost of the device is increased.
[0011] In addition, in the hot water system disclosed in the prior art, the kettle filled with hot water and the retort kettle each require calorific value management, so that the configuration as a whole is complicated, and therefore, There was a problem that the cost was high.
An object of the present invention is to solve the above-mentioned problems and to provide a retort treatment tank (pressure vessel) filled with a retort pouch for hot water (120 to 130 degrees Celsius) stored in a heat storage tank. By shortening the sterilization time by circulating the water to keep it full, eliminating unevenness in the temperature inside the retort sterilization tank, shortening the time required to raise the center temperature of the retort contents, simplifying the device configuration, To provide a retort sterilization method and a retort sterilization apparatus with high expandability and flexibility, such as reducing the cost of the retort sterilization apparatus adapted to each retort food factory. Things.
[0013]
According to a first aspect of the present invention, there is provided a retort treatment tank (pressure vessel) in which hot water (120 to 130 degrees Celsius) stored in a heat storage tank is filled with a retort pouch. ) To cool the retort pouch by injecting normal-temperature water so that the retort processing tank (pressure vessel) filled with the retort pouch is kept full. The retort sterilization method, which is a feature, was adopted.
In the second invention, a heat storage tank for storing hot water (120 to 130 degrees Celsius) is provided, and a retort processing tank (pressure vessel) for filling a retort pouch for sterilization is provided. A device for circulating hot water (120 ° C. to 130 ° C.) stored in the retort processing tank (pressure vessel) filled with the retort pouch is provided, and the retort pouch is filled. An apparatus for injecting room-temperature water was provided so that the retort processing tank (pressure vessel) was maintained in a full state, and a retort sterilization apparatus for performing a series of retort sterilization treatments was provided.
[0015]
FIG. 1 is a schematic diagram of a second invention. A heat storage tank 101 is provided for heating and heating room temperature water at a pressure of 0.186 megapascals to generate and store hot water of 120 to 130 degrees Celsius, and to fill a retort pouch for sterilization. A retort processing tank 102 (pressure vessel) is provided, and the retort processing tank 102 (pressure vessel) filled with the retort pouch is kept full of hot water of 120 to 130 degrees Celsius stored in the heat storage tank 101. The retort sterilization process is performed by providing a device for injecting room-temperature water so that the retort processing tank 102 (pressure vessel) filled with the retort pouch is kept full.
[0016]
An embodiment of the present invention will be described with reference to the drawings. Each processing step and procedure of the present invention will be described with reference to FIG.
The pump 103 is operated while the heat storage tank is filled with room temperature water, the valves 111 and 112 are opened, and the valves 113, 114, 115 and 116 are closed.
The direction in which the water flows is expressed in the order of the joint 901, the joint 902, the joint 903, and the joint 904, using the order of the joints passing therethrough.
Steam at a temperature of 150 degrees Celsius is discharged from the steam pipe 301 to the heat storage tank, and the water in the heat storage tank 101 is heated to an internal pressure of 0.186 MPa and pressurized to 120 degrees Celsius to constantly maintain the pressure and temperature. .
The lid of the retort processing tank 102 is opened, a retort pouch is filled, and the lid is closed.
The valve 116 is opened and steam is sent to the retort processing tank 102 through the steam pipe 401 so that the heat storage tank 101 and the retort processing tank 102 maintain the same internal pressure of 0.186 MPa.
The valve 116 is closed, and the valves 113 and 114 are opened in the order described. The valve 112 is closed. The valve 115 is kept closed.
The high-pressure water stored in the heat storage tank 101 circulates in a state where the retort processing tank 102 is filled with high-pressure water at an internal pressure of 0.186 megapascal and 120 degrees Celsius.
The flow direction of the high-pressure water can be expressed by using the order of the joints passing through the retort treatment tank 102 in the order of the joint 901, the joint 902, the joint 903, the joint 905, the joint 906, and the joint 907. , The joint 909 and the joint 904 return to the heat storage tank 101 in this order.
This state is maintained until sterilization of the retort pouch 104 filled in the retort processing tank 102 is completed.
The valve 116 is opened to make the internal pressures of the heat storage tank 101 and the retort processing tank 102 uniform.
The valve 115 is opened, the valve 111 is closed, the valve 112 is opened, the valve 113 is closed, and the valve 114 is closed.
The high-pressure water filled in the retort processing tank 102 is discharged to a heat storage tank. The flow direction of the high-pressure water is represented by the order of returning from the retort processing tank 102 to the heat storage tank 101 in the order of the joint 907, the joint 902, the joint 903, and the joint 904 in terms of the order of the joints passing therethrough.
This state is maintained until the retort processing tank 102 is filled with steam at 120 degrees Celsius and an internal pressure of 0.186 megapascals.
The valve 115 is closed and the valve 111 is opened. The valve 116 is closed.
The direction in which the high-pressure water flows is represented by the order of returning from the heat storage tank 101 to the heat storage tank 101 in the order of the joint 901, the joint 902, the joint 903, and the joint 904. .
The normal temperature water is injected into the retort processing tank 102 while the internal pressure of the retort processing tank is maintained by opening the valve 117. The flowing direction of the room temperature water enters the retort processing tank from the room temperature water pipe 501 and is discharged from the retort processing tank through the room temperature water pipe 502.
This state is maintained until the retort pouch is cooled to an appropriate temperature.
The valve 117 is closed, the valve 118 is opened, and the water filled in the retort processing tank is drained until the retort processing tank becomes empty.
Open the lid of the retort processing tank 102 and take out the retort pouch.
[0036]
According to the first aspect of the present invention, the retort processing tank (pressure vessel) filled with the retort pouch is kept filled with the hot water (120 degrees Celsius to 130 degrees Celsius) stored in the heat storage tank. By circulating, the sterilization processing time is shortened, the temperature in the retort sterilization pot is even, the time required for the center temperature of the retort contents to rise is shortened, the equipment configuration is simplified, and the equipment cost is reduced. Thus, a retort sterilizing method having high expandability and flexibility was provided, for example, by providing a retort sterilizing apparatus adapted to a retort food factory.
In the second invention, the hot water (120 ° C. to 130 ° C.) stored in the heat storage tank is circulated so that the retort processing tank (pressure vessel) filled with the retort pouch is kept full. This shortens the sterilization time, eliminates temperature fluctuations in the retort sterilization pot, shortens the time required to raise the center temperature of the contents of the retort, simplifies the equipment configuration, reduces equipment costs, and further reduces the cost of each retort. A retort sterilizer with high expandability and flexibility has been provided, for example, a retort sterilizer suitable for a food factory can be provided.
[Brief description of the drawings]
FIG. 1 is a schematic diagram of a second invention.
101 heat storage tank 102 retort treatment tank 103 pump 104 retort pouch 111, 112, 113, 114, 115, 116, 117, 118 valve

Claims (2)

レトルトパウチを高圧熱水で満水にされた圧力容器内で加熱殺菌処理し、加熱殺菌処理をした後、常温水で満水にされた圧力容器内で冷却させるようにしたことを特徴とするレトルト殺菌方法。Retort sterilization characterized in that the retort pouch is heat-sterilized in a pressure vessel filled with high-pressure hot water, heat-sterilized, and then cooled in a pressure vessel filled with normal-temperature water. Method. レトルトパウチを高圧熱水で満水にされた圧力容器内で加熱殺菌処理し、加熱殺菌処理をした後、常温水で満水にされた圧力容器内で冷却させるようにしたことを特徴とするレトルト殺菌装置。Retort sterilization characterized in that the retort pouch is heat-sterilized in a pressure vessel filled with high-pressure hot water, heat-sterilized, and then cooled in a pressure vessel filled with normal-temperature water. apparatus.
JP2003132088A 2003-05-09 2003-05-09 Method for retort sterilization with fully filled high-pressure water and apparatus therefor Pending JP2004329150A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006065064A1 (en) * 2004-12-14 2006-06-22 Hyung Woo Kim A sterilizing apparatus
JP6481122B1 (en) * 2018-02-21 2019-03-13 Ahc合同会社 Oil overheated jacket type retort equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006065064A1 (en) * 2004-12-14 2006-06-22 Hyung Woo Kim A sterilizing apparatus
JP6481122B1 (en) * 2018-02-21 2019-03-13 Ahc合同会社 Oil overheated jacket type retort equipment

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