JPH1084924A - Continuous high-pressure sterilizer - Google Patents
Continuous high-pressure sterilizerInfo
- Publication number
- JPH1084924A JPH1084924A JP8244508A JP24450896A JPH1084924A JP H1084924 A JPH1084924 A JP H1084924A JP 8244508 A JP8244508 A JP 8244508A JP 24450896 A JP24450896 A JP 24450896A JP H1084924 A JPH1084924 A JP H1084924A
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- JP
- Japan
- Prior art keywords
- liquid
- pressure
- gas
- treated
- inert gas
- 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.)
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- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
- General Preparation And Processing Of Foods (AREA)
- Non-Alcoholic Beverages (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、天然果汁等の液状
食品を高圧処理して殺菌又は特性変化を行なう連続高圧
殺菌装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous high-pressure sterilizer for sterilizing or changing the properties of liquid foods such as natural fruit juice by high-pressure treatment.
【０００２】[0002]
【従来の技術】青果を搾汁して得られる天然果汁等の飲
料の殺菌には、従来一般的には加熱装置を利用していた
が、この種の加熱殺菌装置では、加熱によって風味の劣
化、栄養素の損失、加熱臭の生成といった食品として好
ましくないことが生ずる。このため、最近では天然果汁
を数千気圧の高静水圧下で高圧処理する装置が開発され
ている。図２は、連続高圧殺菌装置の従来例を示してお
り、図２において、原料タンク３内に貯留された被処理
液を供給ポンプ４により液温調節器６を経て加圧ポンプ
６へ送って高圧加圧し高圧容器７に送り込む。この高圧
容器７内にて高圧処理を行なった後処理済液を多段に形
成されたオリフィスノズル９及び冷却器８，１８に順次
通過させて徐々に減圧及び冷却し回収するものである。2. Description of the Related Art Conventionally, a heating device is generally used to sterilize beverages such as natural juice obtained by squeezing fruits and vegetables. However, in this type of heat sterilization device, the flavor is deteriorated by heating. In addition, undesirable foods such as loss of nutrients and generation of heated odor occur. For this reason, an apparatus for high-pressure treatment of natural juice under high hydrostatic pressure of several thousand atmospheres has recently been developed. FIG. 2 shows a conventional example of a continuous high-pressure sterilizer. In FIG. 2, the liquid to be treated stored in the raw material tank 3 is sent to the pressurizing pump 6 via the liquid temperature controller 6 by the supply pump 4. It is pressurized at high pressure and sent into the high-pressure vessel 7. After the high-pressure processing in the high-pressure vessel 7, the processed liquid is sequentially passed through multi-stage orifice nozzles 9 and coolers 8 and 18 to gradually reduce and cool the pressure and recover the liquid.
【０００３】[0003]
【発明が解決しようとする課題】上述の高圧殺菌処理
は、それなりに殺菌効果があり効果的ではあるが、更に
殺菌効果を高めようとするには一層高圧下での殺菌処理
が必要であり、この場合には加圧ポンプ６や高圧容器７
などの加圧系装置の更なる高強度化、大型化が必要とな
り、またオリフィスノズル９や冷却器８，１８の減圧・
冷却系装置の更なる大型化も必要となってしまい、設備
コスト及び運転コストの高騰につながるという問題があ
った。The above-mentioned high-pressure sterilization treatment has a certain sterilization effect and is effective. However, in order to further enhance the sterilization effect, a sterilization treatment under a higher pressure is required. In this case, the pressure pump 6 or the high pressure vessel 7
It is necessary to further increase the strength and size of the pressurizing system, such as the pressure system, and to reduce the pressure in the orifice nozzle 9 and the coolers 8 and 18.
A further increase in the size of the cooling system is also required, leading to a problem that equipment costs and operating costs rise.
【０００４】本発明は、上述の問題に鑑み、加圧系装置
や減圧・冷却系装置の大型化や高強度下をすることな
く、設備コストや運転コストを高騰させない連続高圧殺
菌装置の提供を目的とする。SUMMARY OF THE INVENTION In view of the above problems, the present invention provides a continuous high-pressure sterilizer that does not increase equipment costs or operation costs without increasing the size and high strength of a pressurizing system and a decompression / cooling system. Aim.
【０００５】[0005]
【課題を解決するための手段】上述の目的を達成する本
発明は次の発明特定事項を有する。 （１）供給側からの被処理液を高圧処理部を通しついで
減圧・冷却部を通して出口側にて回収する連続高圧殺菌
装置において、上記供給側に被処理液内に不活性ガスを
混入させるガス混入装置を備え、上記出口側に被処理液
内の不活性ガスを分離させるガス分離装置を備え、たこ
とを特徴とする。 （２）上記（１）において、上記不活性ガスはＣＯ2 ガ
ス又はＮ2 ガスであることを特徴とする。The present invention that achieves the above-mentioned object has the following matters specifying the invention. (1) In a continuous high-pressure sterilization apparatus in which a liquid to be treated from a supply side is passed through a high-pressure processing section and then collected at an outlet side through a decompression / cooling section, a gas for mixing an inert gas into the liquid to be treated on the supply side. The mixing device is provided, and a gas separation device for separating an inert gas in the liquid to be treated is provided on the outlet side. (2) In the above (1), the inert gas is CO 2 gas or N 2 gas.
【０００６】供給側からの被処理液内に、ガス混入装置
によって不活性ガスが混入され、この不活性ガス混入の
被処理液が加圧ポンプで高圧加圧されて高圧容器を通過
し、高圧処理される間に、不活性ガスが液に混入してい
る菌体の細胞内に溶解し、高圧容器を出た処理済液が多
段にオリフィスを通過して急速減圧する際に、この菌細
胞内の不活性ガスが急速膨脹して菌体が破壊され、高圧
及び急速減圧による効果と併せて殺菌効果が高くなる。An inert gas is mixed into the liquid to be treated from the supply side by a gas mixing device, and the liquid to be treated mixed with the inert gas is pressurized at a high pressure by a pressure pump, passes through a high pressure vessel, and During the treatment, the inert gas dissolves in the cells of the bacterial cells mixed into the liquid, and when the treated liquid that has exited the high-pressure vessel is rapidly depressurized through multiple orifices, the bacterial cells The inert gas inside expands rapidly to destroy the cells, and the sterilization effect is enhanced in addition to the effects of high pressure and rapid decompression.
【０００７】[0007]
【発明の実施の形態】ここで、本発明の実施の形態の一
例を図１を参照して説明する。図１において、ガス混入
装置１及びガス分離装置２を除いては図２と同じである
が、被処理液の供給側としては原料タンク３、供給ポン
プ４、被処理液を所定の温度に冷却する液温調節器５、
所定圧に被処理液を高圧加圧する加圧ポンプ６があり、
この外、本例では液温調節器５と加圧ポンプ６との間に
ガス混入装置１が備えられる。An embodiment of the present invention will now be described with reference to FIG. 1 is the same as FIG. 2 except for a gas mixing device 1 and a gas separation device 2, except that a raw material tank 3, a supply pump 4, and a liquid to be treated are cooled to a predetermined temperature on the supply side of the liquid to be treated. Liquid temperature controller 5,
There is a pressure pump 6 for pressurizing the liquid to be treated to a predetermined pressure.
In addition, in this example, the gas mixing device 1 is provided between the liquid temperature controller 5 and the pressure pump 6.
【０００８】このガス混入装置１は、例えばＣＯ2 ガス
が充填されたＣＯ2 ボンベ１２、ＣＯ2 ガスを供給路１
５へ送り出すべく供給路１５の回路圧に基づき開閉され
る供給弁１１、ＣＯ2 ガスと被処理液とを充分に混合さ
せるミキサ１０からなる。この場合、ＣＯ2 ガスはこれ
に限らず果汁等に対して反応しにくい不活性なガスでも
よく、また温度によりまた高圧加圧により一般にはガス
溶解度は増大するが加圧により溶解しやすく減圧により
ガス化しやすいガスが好ましい、もちろん食品を取扱う
ものであるので、前提としては無害のものであるのは当
然である。例としては、Ｎ2 ガス、あるいはその他の不
活性なガスがあげられる。また、供給弁１１の開閉は、
ＣＯ2 ボンベ１２の内圧と供給路１５内の回路圧との差
と、ＣＯ2 ガス送り込み量と、によって決められるもの
である。[0008] The gas mixing apparatus 1, for example, CO 2 CO 2 cylinder 12 filled with gas, CO supply channel 1 2 gas
The supply valve 11 is opened and closed based on the circuit pressure of the supply path 15 so as to send it out to the supply path 5, and the mixer 10 sufficiently mixes the CO 2 gas and the liquid to be treated. In this case, the CO 2 gas is not limited to this, and may be an inert gas that does not easily react with fruit juice, etc., and gas solubility generally increases with temperature and high pressure, but it is easily dissolved by pressurization, Gases that are easy to gasify are preferred, and are of course harmless, since they deal with food. Examples include N 2 gas or other inert gases. The opening and closing of the supply valve 11
It is determined by the difference between the internal pressure of the CO 2 cylinder 12 and the circuit pressure in the supply path 15 and the amount of CO 2 gas supplied.
【０００９】加圧ポンプ６から被処理液が連続的に送ら
れて高圧のまま通過させつつ高圧処理を行なう高圧容器
７が配置される。ここでは、高圧により殺菌が行なわれ
る。高圧容器７の出口側には、冷却器８及び減圧と冷却
をするオリフィスノズル９が多段につなげられて減圧と
冷却が行なわれる。また、外部冷却器１８が備えられ
る。ここでは、減圧冷却に伴なって高圧により溶解した
不活性なガスがガス化してくる。この際菌細胞内のガス
化による急速膨脹により菌体が破壊される。ガス分離装
置２は、減圧・冷却された処理液中に混入した不活性な
ガスを分離・除去するもので、処理済液を通過させる容
器２ａ内を仕切板２ｂにより区切って流路を形成し、こ
の流路通過時にＣＯ2 ガスを分離除去するものである。
ガス分離装置２の処理済液は、排出路１６途中の排出ポ
ンプ１３により強制排出され、処理済液タンク１４にて
処理済液が貯留される。A high-pressure vessel 7 for performing high-pressure processing while continuously sending the liquid to be treated from the pressure pump 6 and passing it at a high pressure is arranged. Here, sterilization is performed by high pressure. On the outlet side of the high-pressure vessel 7, a cooler 8 and an orifice nozzle 9 for decompression and cooling are connected in multiple stages to perform decompression and cooling. Further, an external cooler 18 is provided. Here, the inert gas dissolved by the high pressure gasifies with the cooling under reduced pressure. At this time, the cells are destroyed by rapid expansion due to gasification within the bacterial cells. The gas separation device 2 separates and removes an inert gas mixed in the decompressed and cooled processing liquid, and forms a flow path by dividing the inside of a container 2a through which the processed liquid passes by a partition plate 2b. The CO 2 gas is separated and removed when passing through the flow path.
The treated liquid in the gas separation device 2 is forcibly discharged by the discharge pump 13 in the middle of the discharge path 16, and the treated liquid is stored in the treated liquid tank 14.
【００１０】図１にて一連の動作を説明する。まず供給
ポンプ４を作動して原料タンク３内の被処理液を取出
し、ＣＯ2 ガスの溶解が容易になるように液温調節器５
で所定温度（例えば１０℃以下）に冷却して供給路１５
へ送り出す。そして供給路１５が所定の回路圧に応じて
ガス混合装置１の供給弁１１が開いてＣＯ2 ボンベ１２
からＣＯ2 ガスが供給路１５へ送られ、ミキサ１０によ
って供給路１５内を流れる被処理液と充分に混合されて
加圧ポンプ６へ送られる。加圧ポンプ６によって目標圧
まで高圧加圧された被処理液は、次いで高圧容器７へ送
られ、所定の高圧を保持した状態で同容器７内を通過す
る間に所定の高圧処理が行われる。こうして、高圧処理
された処理済液は多段のオリフィスノズル９及び冷却器
８，１８を順次通過して徐々に減圧及び冷却され、排出
路１６へ送られる。ここで、被処理液に混入されたＣＯ
2 ガスは、被処理液が高圧加圧されることによって液中
の菌細胞内に充分に溶解する。そして高圧容器７を出た
高圧の処理済液が多段オリフィスノズル９を通過して急
速減圧される際に、この菌細胞内のＣＯ2 ガスが急速膨
脹して菌体が破壊される（殺菌される）。こうして高圧
加圧及び急速減圧に伴う効果と併せて効果的な殺菌が行
われる。次いで、排出路１６へ排出された処理済液は、
ガス分離装置２へ送り込まれ、容器２ａ内流路を通過す
る間に液中のＣＯ2 ガスが分離・除去された後、排出ポ
ンプ１３により処理済液タンク１４へ送られて回収され
る。この際、排出ポンプ１３により容器２ａ内処理済液
を強制排出することによってＣＯ2 ガスの分離が促進さ
れる。なお、本例では、高圧加圧された被処理液を高圧
容器内を通過させて高圧処理するようにしたが、高圧配
管流路を通過させるようにしてもよい。A series of operations will be described with reference to FIG. First, the supply pump 4 is operated to take out the liquid to be treated from the raw material tank 3, and the liquid temperature controller 5 is used to easily dissolve the CO 2 gas.
To a predetermined temperature (for example, 10 ° C. or less)
Send to Then, the supply path 15 opens the supply valve 11 of the gas mixing device 1 according to the predetermined circuit pressure, and the CO 2 cylinder 12
CO 2 gas is fed to the supply passage 15, it is sent by the mixer 10 is mixed sufficiently with the liquid to be treated flowing through the supply passage 15 to the pressurizing pump 6. The liquid to be treated, which has been pressurized to the target pressure by the pressurizing pump 6, is then sent to the high-pressure vessel 7, where a predetermined high-pressure treatment is performed while passing through the vessel 7 while maintaining a predetermined high pressure. . In this way, the processed liquid subjected to the high-pressure processing passes through the multi-stage orifice nozzle 9 and the coolers 8 and 18 sequentially, and is gradually reduced in pressure and cooled, and sent to the discharge path 16. Here, CO mixed into the liquid to be treated
The two gases are sufficiently dissolved in the bacterial cells in the liquid when the liquid to be treated is pressurized at high pressure. When the high-pressure treated liquid that has exited the high-pressure vessel 7 passes through the multi-stage orifice nozzle 9 and is rapidly decompressed, the CO 2 gas in the bacterial cells expands rapidly and the cells are destroyed (sterilized). ). In this way, effective sterilization is performed in addition to the effects of high pressure application and rapid decompression. Next, the treated liquid discharged to the discharge path 16 is
The CO 2 gas in the liquid is sent to the gas separation device 2 and separated and removed while passing through the flow path in the container 2 a, and then sent to the treated liquid tank 14 by the discharge pump 13 and collected. At this time, separation of the CO 2 gas is promoted by forcibly discharging the treated liquid in the container 2a by the discharge pump 13. In the present example, the liquid to be treated, which has been subjected to high pressure and pressure, is passed through the high pressure vessel to perform high pressure processing, but may be passed through the high pressure pipe flow path.
【００１１】[0011]
【発明の効果】以上、説明したように、本発明の連続高
圧殺菌装置によると、ガス混合装置を設けて供給される
被処理液内に不活性なガスを混入したので被処理液を高
圧加圧することによってこの不活性なガスが液中の菌細
胞内に溶解し、高圧容器内で高圧処理された処理済液が
多段オリフィスを通過する際に、この菌細胞内のガスが
急速膨脹して菌体が破壊されるようになり、また、処理
済液中の不活性なガスは、ガス分離装置により精度よく
分離して除去することができ、これによって従来装置と
同程度の高圧処理装置を用いてより大きい殺菌効果を上
げることができるようになり、圧力条件を低減して設備
費の低減を図ることができる。As described above, according to the continuous high-pressure sterilization apparatus of the present invention, an inert gas is mixed in a liquid to be treated which is supplied by providing a gas mixing device. The inert gas dissolves in the bacterial cells in the liquid by applying pressure, and the gas in the bacterial cells rapidly expands when the treated liquid subjected to high pressure treatment in the high-pressure vessel passes through the multistage orifice. The cells will be destroyed, and the inert gas in the treated liquid can be accurately separated and removed by a gas separation device, thereby enabling a high-pressure processing device comparable to the conventional device. When used, a greater sterilization effect can be achieved, and pressure conditions can be reduced to reduce equipment costs.
【図１】本発明の実施の形態の一例の構成図。FIG. 1 is a configuration diagram of an example of an embodiment of the present invention.
【図２】従来例の構成図。FIG. 2 is a configuration diagram of a conventional example.
１ ガス混入装置 ２ ガス分離装置 ２ａ 容器 ２ｂ 仕切板 ３ 原料タンク ４ 供給ポンプ ５ 液温調節器 ６ 加圧ポンプ ７ 高圧容器 ８ 冷却器 ９ オリフィスノズル １０ ミキサー １１ 供給弁 １２ ＣＯ2 ボンベ １３ 排出ポンプ １４ 処理済液タンク １５ 供給路 １６ 排出路 １８ 外部冷却器1 gas mixing device 2 gas separation apparatus 2a container 2b partition plate 3 material tank 4 feed pump 5 liquid temperature controller 6 pressure pump 7 a high-pressure container 8 condenser 9 orifice nozzle 10 mixer 11 supply valve 12 CO 2 cylinder 13 exhaust pump 14 Treated liquid tank 15 Supply path 16 Drain path 18 External cooler
───────────────────────────────────────────────────── フロントページの続き (72)発明者 堀 恵一 広島県広島市西区観音新町四丁目６番22号 三菱重工業株式会社広島製作所内 (72)発明者 岡田 辰也 広島県広島市西区観音新町四丁目６番22号 三菱重工業株式会社広島製作所内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Keiichi Hori, Inventor 4-62-22 Kannonshinmachi, Nishi-ku, Hiroshima-shi, Hiroshima Mitsubishi Heavy Industries, Ltd. Hiroshima Works (72) Inventor Tatsuya Okada 4-chome, Kannonshinmachi, Nishi-ku, Hiroshima-shi, Hiroshima No. 6-22 Mitsubishi Heavy Industries, Ltd. Hiroshima Works
Claims (2)
しついで減圧・冷却部を通して出口側にて回収する連続
高圧殺菌装置において、 上記供給側に被処理液内に不活性ガスを混入させるガス
混入装置を備え、上記出口側に被処理液内の不活性ガス
を分離させるガス分離装置を備え、たことを特徴とする
連続高圧殺菌装置。1. A continuous high-pressure sterilization apparatus for recovering a liquid to be treated from a supply side through a high-pressure processing section and then collecting the liquid at an outlet side through a decompression / cooling section, wherein an inert gas is mixed into the liquid to be treated on the supply side. A continuous high-pressure sterilization apparatus, comprising: a gas mixing device for causing the gas to be separated; and a gas separation device for separating an inert gas in the liquid to be treated at the outlet side.
スであることを特徴とする請求項１記載の連続高圧殺菌
装置。2. The continuous high-pressure sterilizer according to claim 1, wherein the inert gas is CO 2 gas or N 2 gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24450896A JP3297319B2 (en) | 1996-09-17 | 1996-09-17 | Continuous high pressure sterilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24450896A JP3297319B2 (en) | 1996-09-17 | 1996-09-17 | Continuous high pressure sterilizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1084924A true JPH1084924A (en) | 1998-04-07 |
| JP3297319B2 JP3297319B2 (en) | 2002-07-02 |
Family
ID=17119728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24450896A Expired - Fee Related JP3297319B2 (en) | 1996-09-17 | 1996-09-17 | Continuous high pressure sterilizer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3297319B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000139433A (en) * | 1998-11-04 | 2000-05-23 | Shimadzu Corp | Continuous treatment of liquid substance, apparatus for continuous treatment and liquid food or drink treated therewith |
| JP2019041670A (en) * | 2017-09-01 | 2019-03-22 | 株式会社日立製作所 | Continuous inactivation method, continuous inactivation apparatus, and unit for continuous inactivation apparatus |
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| JPH04174669A (en) * | 1990-11-07 | 1992-06-22 | Sugino Mach Ltd | High pressure liquid jet type sterilizing method |
| JPH06327446A (en) * | 1993-05-25 | 1994-11-29 | Mitsubishi Heavy Ind Ltd | Device for continuously treating liquid under high pressure |
| JPH06343433A (en) * | 1993-06-08 | 1994-12-20 | Mitsubishi Heavy Ind Ltd | Method for continuously treating liquid under high pressure |
-
1996
- 1996-09-17 JP JP24450896A patent/JP3297319B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0312793U (en) * | 1989-06-20 | 1991-02-08 | ||
| JPH04174669A (en) * | 1990-11-07 | 1992-06-22 | Sugino Mach Ltd | High pressure liquid jet type sterilizing method |
| JPH06327446A (en) * | 1993-05-25 | 1994-11-29 | Mitsubishi Heavy Ind Ltd | Device for continuously treating liquid under high pressure |
| JPH06343433A (en) * | 1993-06-08 | 1994-12-20 | Mitsubishi Heavy Ind Ltd | Method for continuously treating liquid under high pressure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000139433A (en) * | 1998-11-04 | 2000-05-23 | Shimadzu Corp | Continuous treatment of liquid substance, apparatus for continuous treatment and liquid food or drink treated therewith |
| JP2019041670A (en) * | 2017-09-01 | 2019-03-22 | 株式会社日立製作所 | Continuous inactivation method, continuous inactivation apparatus, and unit for continuous inactivation apparatus |
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|---|---|
| JP3297319B2 (en) | 2002-07-02 |
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