JPH04126060A - Method for heating and sterilizing - Google Patents
Method for heating and sterilizingInfo
- Publication number
- JPH04126060A JPH04126060A JP24799390A JP24799390A JPH04126060A JP H04126060 A JPH04126060 A JP H04126060A JP 24799390 A JP24799390 A JP 24799390A JP 24799390 A JP24799390 A JP 24799390A JP H04126060 A JPH04126060 A JP H04126060A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- liquid
- sterilized
- article
- viscous
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、固形物と、液体または粘稠体の混合物から成
る被殺菌物をパイプ中を連続的に移送しながら、マイク
ロ波を照射して殺菌する方法に関する。Detailed Description of the Invention (Field of Industrial Application) The present invention involves irradiating microwaves while continuously transporting an object to be sterilized, which is a mixture of a solid substance and a liquid or a viscous substance, through a pipe. sterilization method.
（従来の技術）
液体または粘稠体から成る被殺菌物をパイプ中を連続的
に移送しながら、マイクロ波を照射して殺菌する方法は
公知であり、実公昭６３−５５１３号公報、特開昭６２
−１１７５６１号公報、特開昭６３−１１１８７０号公
報等に記載されている。(Prior Art) A method of sterilizing a liquid or viscous object by irradiating it with microwaves while continuously transporting it through a pipe is known, and is disclosed in Japanese Utility Model Publication No. 63-5513 and Japanese Patent Application Publication No. 1983-5513. Showa 62
It is described in JP-A-117561, JP-A-63-111870, etc.
これらの方法は、被殺菌物をパイプ中を移送しながら、
まずマイクロ波照射して高温にし、その後、断熱状態の
ホールディング部で殺菌に必要な時間高温に維持し、最
後に冷却して取り出すものである。These methods transport the material to be sterilized through the pipe.
First, it is heated to a high temperature by irradiation with microwaves, then maintained at high temperature for the time required for sterilization in an insulated holding section, and finally cooled and removed.
（発明が解決しようとする課題）
しかしながら、被殺菌物が液体または粘稠体の他に固形
物を含む場合、固形物は液体や粘稠体に比べてマイクロ
波による加熱が容易であることから、液体や粘稠体の殺
菌温度まで加熱すると、この固形物の変性が大きいこと
があった。(Problem to be Solved by the Invention) However, when the object to be sterilized contains solid substances in addition to liquids or viscous substances, solid substances are easier to heat with microwaves than liquids or viscous substances. When heated to the sterilization temperature of liquids and viscous substances, the denaturation of these solid substances was sometimes significant.
一方、加熱条件を固形物の殺菌温度に設定すると、液体
または粘稠体が充分殺菌できないという問題があった。On the other hand, when the heating conditions are set to the sterilization temperature of solid materials, there is a problem that liquids or viscous materials cannot be sufficiently sterilized.
そこで、本発明は、固形物と、液体または粘稠体の双方
を金色被殺菌物を、均一にかつ充分殺菌する方法を提供
することを目的とする。Therefore, an object of the present invention is to provide a method for uniformly and sufficiently sterilizing golden objects, both solid and liquid or viscous.
（課題を解決するための手段）
この目的を解決するため、本発明は、固形物と、液体ま
たは粘稠体から成る被殺菌物をパイプ中を連続的に移送
しながら、パイプ周囲に順次設けられた、熱交換方式の
予備加熱装置、マイクロ波加熱装置及び断熱状態のホー
ルディング部により加熱殺菌することを特徴とする加熱
殺菌方法を提供する。(Means for Solving the Problems) In order to solve this object, the present invention provides a method for sequentially disposing objects to be sterilized around a pipe while continuously transporting objects to be sterilized consisting of a solid substance and a liquid or a viscous substance through the pipe. Provided is a heat sterilization method characterized by heat sterilization using a heat exchange type preheating device, a microwave heating device, and an adiabatic holding part.
（作用）
本発明に係る固形物はマイクロ波照射により加熱され易
く、また、液体や粘稠体は熱交換方式の予備加熱装置に
より加熱され易い。このため、予備加熱とマイクロ波照
射により、両者は略同−温度に達してホールディング部
に導入され、殺菌に必要な時間高温に維持される。(Function) A solid substance according to the present invention is easily heated by microwave irradiation, and a liquid or a viscous substance is easily heated by a heat exchange type preheating device. Therefore, by preheating and microwave irradiation, both of them reach approximately the same temperature, are introduced into the holding part, and are maintained at a high temperature for the time required for sterilization.
この結果、固形物も、液体や粘稠体も均一に殺菌できる
のである。As a result, solids, liquids, and viscous substances can be uniformly sterilized.
（発明の詳細な
説明にかかる被殺菌物（１）は固形物と、液体または粘
稠体から成るものである。(The object to be sterilized (1) according to the detailed description of the invention consists of a solid substance and a liquid or viscous substance.
固形物としでは、角切の肉、グリーンピース、コーン粒
、キャロット、ポテト等が例示できる。Examples of solids include diced meat, green peas, corn grains, carrots, and potatoes.
大きさは数ｍｍから２０ｍｍのものが好ましい。The size is preferably from several mm to 20 mm.
また、液体または粘稠体としては、各種調味組入りのス
ープ、ホワイトソース等が使用できる。Further, as the liquid or viscous substance, soups containing various seasonings, white sauce, etc. can be used.
かかる被殺菌物（１）は、全体として、２０００ｃｐ以
上の粘度を有することが望ましい、これより低い粘度の
場合は、固形物が移送されずにパイプ中に滞留すること
があるからである。径１０ｍｍのコーン粒、同しく径Ｉ
Ｑｍｍのグリーンピース１、同しく径ＩＱｍｍのキャロ
ット、１５ｍｍの角切牛肉、同しく１５ｍｍの角切ポテ
トの場合、滞留することなく移送できる範囲は、いずれ
も２０００ｃｐ以上の場合であった。It is desirable that the object to be sterilized (1) as a whole has a viscosity of 2000 cp or more, because if the viscosity is lower than this, the solids may remain in the pipe without being transferred. Corn grains with a diameter of 10 mm, also with a diameter of I
In the case of green peas 1 with a diameter of Qmm, carrots with a diameter of IQmm, beef cubes with a diameter of 15mm, and potato cubes with a diameter of 15mm, the range in which they could be transferred without stagnation was 2000cp or more.
被殺菌物（１）は、第１図に示すように、パイプ（４）
端部に設けられたホ、バー（２）から投入し、ポンプ（
３）によりパイプ（４）中を連続的に移送することがで
きる。The object to be sterilized (1) is a pipe (4) as shown in Figure 1.
Input from the bar (2) provided at the end, and pump (
3) allows continuous transport through the pipe (4).
被殺菌物（１）を充分に加熱殺菌するため、ツクイブ（
４）の周囲には、順次、予備加熱装置（５）、マイクロ
波加熱装置（６）、ホールディング部（７）が設ける必
要がある。In order to sufficiently heat and sterilize the object to be sterilized (1), use Tsukibu (
4), it is necessary to sequentially provide a preheating device (5), a microwave heating device (6), and a holding part (7).
予備加熱装置（５）は熱交換方式による必要がある。こ
の熱交換方式による加熱においては、液体または粘稠体
は、固形物より加熱され易く、より高温になる。The preheating device (5) must be of a heat exchange type. In heating by this heat exchange method, liquids or viscous materials are more easily heated than solid materials and reach higher temperatures.
マイクロ波加熱装置（６）は、予備加熱された液体また
は粘稠体と、固形物を殺菌に必要な温度まで加熱するも
のである。固形物は、予備殺菌装置（５）の加熱によっ
て、液体または粘稠体より低い温度に加熱されているが
、マイクロ波による加熱効率が良いことから、液体また
は粘稠体より高速度で昇温し、ホールディング部（１）
の入口で固形物と液体または粘稠体は略同−温度に達す
る。The microwave heating device (6) heats preheated liquid or viscous material and solid material to the temperature required for sterilization. The solid material is heated to a lower temperature than the liquid or viscous material by heating in the pre-sterilization device (5), but because of the high heating efficiency of microwaves, the temperature rises at a higher rate than the liquid or viscous material. Holding Department (1)
The solid and liquid or viscous materials reach approximately the same temperature at the inlet of the tube.
予備加熱装置（５）は、例えば、パイプ（４）の周囲に
、大径のパイプを設け、加熱蒸気や熱水を通せば良い。The preheating device (5) may be configured by, for example, providing a large diameter pipe around the pipe (4) and passing heated steam or hot water therethrough.
加熱蒸気や熱水等の熱媒体は、被殺菌物の移送方向とは
逆方向に、すなわちマイクロ波殺菌装置（６）側からパ
イプの入口に向かって通すことが、熱効率の点で好まし
い。In terms of thermal efficiency, it is preferable that the heat medium such as heated steam or hot water be passed in the opposite direction to the direction of transfer of the object to be sterilized, that is, from the microwave sterilizer (6) side toward the entrance of the pipe.
かかる熱媒体は、被殺菌物（１）の種類によるが、７０
〜１００°Ｃのものが好ましい、熱交換の時間は、１６
０から２００秒を目安とすれば良い。Such a heat medium depends on the type of the object to be sterilized (1), but
~100°C is preferred, the heat exchange time is 16
A rough guideline is 0 to 200 seconds.
マイクロ波加熱装置（６）は、パイプ外部からマイクロ
波を照射して、被殺菌物（１）自体の発熱を利用して殺
菌するものである。液体または粘稠体の温度が１２０〜
１４０°Ｃとなるように照射すれば良い、もっとも、固
形物の温度を基準にしても同様である。両者は、略同−
温度に達するからである。−最には、２．４５ＧＨｚの
マイクロ波を、出力１，３Ｋｗで、３０〜９０秒町射す
れば良い。The microwave heating device (6) sterilizes the object (1) by irradiating it with microwaves from outside the pipe and utilizing the heat generated by the object (1) itself. Temperature of liquid or viscous substance is 120~
It is sufficient to irradiate at 140°C, although the same applies even if the temperature of the solid material is used as a reference. Both are almost the same.
This is because the temperature is reached. -Finally, 2.45 GHz microwaves with an output of 1.3 Kw should be irradiated for 30 to 90 seconds.
ホールディング部（７）は、高温に達した被殺菌物（１
）を、殺菌に必要な時間、高温に維持するものである。The holding part (7) holds the object to be sterilized (1) which has reached a high temperature.
) is maintained at high temperature for the time required for sterilization.
パイプ（４）を断熱材料で被覆して設ければ良い。ホー
ルディングの時間は、１０〜１２０秒で充分である。The pipe (4) may be provided by being covered with a heat insulating material. A holding time of 10 to 120 seconds is sufficient.
第１図に示すように、ホールディング部（７）で加熱殺
菌された被殺菌物（１）は、冷却部（８）を通過した後
、取り出すことが望ましい、１２０°Ｃ以上に加熱され
た液体または粘稠体が急激に常圧下に排出されて膨張す
ることを防くためである。As shown in Figure 1, the object to be sterilized (1) that has been heat sterilized in the holding section (7) passes through the cooling section (8) and is preferably taken out as a liquid heated to 120°C or higher. Alternatively, this is to prevent the viscous material from expanding due to sudden discharge under normal pressure.
（実施例）
・固形物 角切の牛肉（５ｍｍ角のものと、５ｍｍ角
のものを使用）
・液体 ホワイトソース。(Example) - Solids: Beef cubes (5 mm cubes and 5 mm cubes were used) - Liquid White sauce.
・被殺菌物の粘度 ３５００ｃｐ。・Viscosity of material to be sterilized: 3500 cp.
・殺菌装置。 第１図図示の装置。・Sterilization equipment. The device shown in Figure 1.
・熱媒体 ９０℃の熱水。・Heating medium: 90℃ hot water.
・熱交換方式 パイプ（１）に周囲に大径のパイプを
設け、この中をマイクロ
波加熱装！側からパイプ入口に
向かって、熱媒体を通した。・Heat exchange method A large diameter pipe is installed around the pipe (1), and a microwave heating device is installed inside this pipe! A heating medium was passed from the side toward the pipe inlet.
・熱交換時間 １８０秒。・Heat exchange time: 180 seconds.
・マイクロ波出力 １．３ＫＷｘ４台。・Microwave output: 1.3KW x 4 units.
・マイクロ波照射時間 ６０秒。・Microwave irradiation time: 60 seconds.
・ホールディング時間 ６０秒。・Holding time: 60 seconds.
・結果 第２図に、各位置における固形物と液体の温
度を示す、この図から、ホール
ディング部入口で、固形物と液体の双
方が略１４０℃に達していることが分
かる。-Results Figure 2 shows the temperature of the solid and liquid at each position. From this figure, it can be seen that both the solid and liquid reached approximately 140°C at the entrance of the holding section.
（効果）
以上のように、本発明によれば、固形物と、液体または
粘稠体から成る混合物を均一に加熱殺菌することが可能
となる。(Effects) As described above, according to the present invention, it is possible to uniformly heat sterilize a mixture consisting of a solid and a liquid or a viscous substance.
第１図は本発明に係る装置を示す説明図、第２図は実施
例における固形物と液体の昇温温度を示すグラフ。
（１）−被殺菌物 （２）−ポツパー（３） ポン
プ （４）−パイプ（５） −一一子備加熱装
置
（６）−マイクロ波加熱装置
（７）ホーディング部 （８）−・−冷却部（ａ）−−
液体 （ｂ ）−５ｍ ｍ角の角切牛肉（Ｃ）−利５
ｍｍの角切牛肉FIG. 1 is an explanatory diagram showing an apparatus according to the present invention, and FIG. 2 is a graph showing the temperature increase of solids and liquids in Examples. (1) - Item to be sterilized (2) - Pumper (3) Pump (4) - Pipe (5) - One-piece heating device (6) - Microwave heating device (7) Hoarding part (8) -・-Cooling section (a)--
Liquid (b) - 5mm cubed beef (C) - Ri5
mm cubed beef
Claims (1)
パイプ中を連続的に移送しながら、パイプ周囲に順次設
けられた、熱交換方式の予備加熱装置、マイクロ波加熱
装置及び断熱状態のホールディング部により加熱殺菌す
ることを特徴とする加熱殺菌方法。(1) A heat exchange type preheating device, a microwave heating device, and heat insulation are installed around the pipe in order while continuously transporting the solid material, liquid, or viscous material to be sterilized through the pipe. A heat sterilization method characterized by heat sterilization using a holding part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24799390A JPH04126060A (en) | 1990-09-18 | 1990-09-18 | Method for heating and sterilizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24799390A JPH04126060A (en) | 1990-09-18 | 1990-09-18 | Method for heating and sterilizing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04126060A true JPH04126060A (en) | 1992-04-27 |
Family
ID=17171599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24799390A Pending JPH04126060A (en) | 1990-09-18 | 1990-09-18 | Method for heating and sterilizing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04126060A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996036246A1 (en) * | 1995-05-15 | 1996-11-21 | Questron Corporation | Method and apparatus for microwave enhanced pasteurization and enzyme inactivation of continuously flowing product |
| WO1996037112A1 (en) * | 1995-05-26 | 1996-11-28 | Officine Di Cartigliano S.P.A. | Method and apparatus for sterilizing biological liquids, particularly milk and its by-products |
| US5667828A (en) * | 1994-10-13 | 1997-09-16 | Florida Dept. Of Citrus | System and method for pasteurizing citrus juice using microwave energy |
| NL1022693C2 (en) * | 2003-02-14 | 2004-08-17 | Tno | Continuous thermal process for treating coarse food particles and food particles that are available with the process according to the invention. |
| JP2008541706A (en) * | 2005-05-23 | 2008-11-27 | フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー．ファオ | Homogeneous heating method for products |
-
1990
- 1990-09-18 JP JP24799390A patent/JPH04126060A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5667828A (en) * | 1994-10-13 | 1997-09-16 | Florida Dept. Of Citrus | System and method for pasteurizing citrus juice using microwave energy |
| WO1996036246A1 (en) * | 1995-05-15 | 1996-11-21 | Questron Corporation | Method and apparatus for microwave enhanced pasteurization and enzyme inactivation of continuously flowing product |
| US5697291A (en) * | 1995-05-15 | 1997-12-16 | Questron Inc. | Method and apparatus for microwave enhanced pasteurization and enzyme inactivation of continuously flowing product |
| WO1996037112A1 (en) * | 1995-05-26 | 1996-11-28 | Officine Di Cartigliano S.P.A. | Method and apparatus for sterilizing biological liquids, particularly milk and its by-products |
| US5976592A (en) * | 1995-05-26 | 1999-11-02 | Officine Di Cartigliano S.P.A. | Method and apparatus for sterilizing biological liquids, particularly milk and its by-products |
| NL1022693C2 (en) * | 2003-02-14 | 2004-08-17 | Tno | Continuous thermal process for treating coarse food particles and food particles that are available with the process according to the invention. |
| WO2004071220A1 (en) * | 2003-02-14 | 2004-08-26 | Nederlandse Organisatie Voor Toegepast- Natuurwetenschappelijk Onderzoek Tno | Continuous thermal process for treating a flow comprising coarse food particles, and food particles obtainable with the process according to the invention |
| JP2008541706A (en) * | 2005-05-23 | 2008-11-27 | フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー．ファオ | Homogeneous heating method for products |
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