JPH0330767A - High electric voltage pulse sterilization apparatus - Google Patents
High electric voltage pulse sterilization apparatusInfo
- Publication number
- JPH0330767A JPH0330767A JP1167316A JP16731689A JPH0330767A JP H0330767 A JPH0330767 A JP H0330767A JP 1167316 A JP1167316 A JP 1167316A JP 16731689 A JP16731689 A JP 16731689A JP H0330767 A JPH0330767 A JP H0330767A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- liq
- cell
- insulating plate
- sterilization
- 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
- 230000001954 sterilising effect Effects 0.000 title claims abstract description 20
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 17
- 239000012528 membrane Substances 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 22
- 239000003011 anion exchange membrane Substances 0.000 abstract description 6
- 238000005341 cation exchange Methods 0.000 abstract description 5
- 241000894006 Bacteria Species 0.000 abstract description 3
- 150000002500 ions Chemical class 0.000 abstract description 2
- 230000003028 elevating effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 13
- 238000010438 heat treatment Methods 0.000 description 12
- 239000011550 stock solution Substances 0.000 description 9
- 210000004027 cell Anatomy 0.000 description 7
- 239000000243 solution Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 239000011344 liquid material Substances 0.000 description 2
- 238000009928 pasteurization Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000013334 alcoholic beverage Nutrition 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 239000012531 culture fluid Substances 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000000504 effect on taste Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000014214 soft drink Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Apparatus For Disinfection Or Sterilisation (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は生物実験培養液、酒、清涼飲料水などやその製
造用水等液体に高電圧パルスを印加して殺菌する装置に
関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus for sterilizing liquids such as biological experimental culture fluids, alcoholic beverages, soft drinks, and water used for their production by applying high voltage pulses.
液体の殺菌方法としては加熱式処理が最も一般的である
。加熱方式としては直接加熱方式と間接加熱方式とがあ
るが、大半が直接加熱方式である。The most common method for sterilizing liquids is heating. Heating methods include direct heating methods and indirect heating methods, but most are direct heating methods.
直接加熱方式は製品と加熱媒体（一般には蒸気）とを直
接的に混合させて瞬間的に滅菌温度まで加熱する方式で
ありその工程を牛乳の場合を例に採って説明すると概路
次のようになっている。The direct heating method is a method in which the product is directly mixed with a heating medium (generally steam) and instantaneously heated to the sterilization temperature.The process is explained using the example of milk as follows. It has become.
１）予 熱：こげつき（蛋白質の変性）の発生が始ま
る温度付近（約８０℃）ま
で熱交換器にて加熱する。1) Preheating: Heat with a heat exchanger to around the temperature at which burning (denaturation of proteins) begins (approximately 80°C).
２）加 熱：製品と蒸気を直接接触させて滅菌温度ま
で一気に加熱する。通常１
４０〜ｉｓｏ℃、間接加熱方式よ
り数度高くする。2) Heating: Bring the product into direct contact with steam and heat it all at once to sterilization temperature. Usually 140~iso℃, several degrees higher than indirect heating method.
３）滅 菌：製品の固形分の大きさによるが、４秒〜
数分間保持して滅菌する。3) Sterilization: Depending on the solid content of the product, 4 seconds or more
Hold for a few minutes to sterilize.
通常間接加熱方式より長くする。It is usually longer than the indirect heating method.
４）蒸発冷却：加熱時に消費した蒸気のため増えた水分
量を減圧下で蒸発させ抜き
取り、同時に蒸発時に持ち去られ
る潜熱により原液を冷却する。4) Evaporative cooling: The amount of water increased due to the steam consumed during heating is evaporated and extracted under reduced pressure, and at the same time, the raw solution is cooled by the latent heat carried away during evaporation.
５）均 質：脂肪分の乳化のため均質を行う。5) Homogenization: Homogenization is performed to emulsify the fat.
６）冷 却：熱交換器により、充填温度まで冷却する
。6) Cooling: Cool to the filling temperature using a heat exchanger.
これら加熱殺菌では蒸発冷却時に香気が逃げる等の問題
を抱えており処理に適した製品が限られるという問題が
ある。These heat sterilization methods have problems such as aroma escaping during evaporative cooling, which limits the number of products suitable for the treatment.
他に低温条件下での殺菌方法として、紫外線による殺菌
法があるが不法については蛋白を変質させるなどの問題
を抱えており、ここでも処理に適した製品が限られると
いう問題がある。Another sterilization method under low-temperature conditions is ultraviolet sterilization, but illegal methods have problems such as denaturing proteins, and this also has the problem of limited products suitable for treatment.
本発明では蒸気加熱のかわりに電気エネルギーにより常
温（低温殺菌の領域）で殺菌できる微孔絶縁板を用いた
高電圧パルスの印加による殺菌装置に関するものである
。The present invention relates to a sterilizer that uses a microporous insulating plate that can be sterilized at room temperature (in the range of pasteurization) using electric energy instead of steam heating and that uses high voltage pulses.
本発明者等は、高電圧パルスを印加することにより多種
の液状物及びそれに含まれる微生物に対する殺菌効果の
有無について確認し、その結果大半の液状物については
、殺菌できることがわかった。然しなから、飲料物、特
に味覚に微妙な影響を与える清酒を用いて殺菌試験を行
ったところ、殺菌効果は良好であったが、味覚と香気が
僅かではあるが損うという問題が生じた。The present inventors have confirmed whether or not the application of high voltage pulses has a sterilizing effect on various types of liquid materials and the microorganisms contained therein, and as a result, it has been found that most liquid materials can be sterilized. However, when we conducted a bactericidal test using beverages, especially sake, which has a subtle effect on taste, we found that although the bactericidal effect was good, there was a problem that the taste and aroma were slightly impaired. .
本発明は上記した問題点に鑑みてなされたもので、要す
るに液体に高電圧パルスを印加して殺菌する装置におい
て、殺菌セルに陽電極と陰電極を微孔絶縁板を介して対
岐するように取り付け、該微孔絶縁板と前記電極の間に
夫々イオン膜を設け処理液と各電極を隔離してなるもの
である。The present invention has been made in view of the above-mentioned problems.In short, in a device that sterilizes liquid by applying a high voltage pulse, the present invention has a sterilization cell in which a positive electrode and a negative electrode are connected to each other via a microporous insulating plate. The treatment liquid and each electrode are isolated by installing an ion membrane between the microporous insulating plate and the electrode.
このように構成された本発明によれば、電源により電極
間に高電圧パルスを印加１．て、同電極間に満された処
理液中の細菌に電位差を与え細胞膜を破壊し、殺菌する
が、処理液が電気分解し、その結果発生した酸素ガスや
水素ガスなどの影響を受けぬようにイオン膜を設けて、
直接処理液と接触しないようにすることができるもので
ある。According to the present invention configured in this way, a high voltage pulse is applied between the electrodes by a power source.1. A potential difference is applied to the bacteria in the processing solution filled between the electrodes to destroy their cell membranes and sterilize them. An ionic membrane is provided on the
It can be prevented from coming into direct contact with the processing liquid.
第１図に本発明の実施例を示す。 FIG. 1 shows an embodiment of the present invention.
１は高電圧パルス電源、２は原液タンク、３は原液供給
ライン、４は処理液ライン ５及び８は循環液タンク、
６及び９は循環ポンプ、７及び１０は循環液供給ライン
１１は陽電極、１２は陰電極、１３はアニオン交換膜
、１４はカチオン交換膜、１５は微孔絶縁板、１６は原
液供給ポンプ、１７は殺菌セル １８及ヒ１９は隔室、
２０及び２１は継続ラインである。1 is a high voltage pulse power supply, 2 is a stock solution tank, 3 is a stock solution supply line, 4 is a processing liquid line, 5 and 8 are circulating liquid tanks,
6 and 9 are circulation pumps, 7 and 10 are circulating fluid supply lines, 11 is an anode, 12 is a cathode, 13 is an anion exchange membrane, 14 is a cation exchange membrane, 15 is a microporous insulating plate, 16 is a stock solution supply pump, 17 is a sterilization cell, 18 and 19 are compartments,
20 and 21 are continuation lines.
尚、上記微孔絶縁板１５は、向い合う２つの電極１１．
１２の間に位置し液がこの微孔内の電界強度の高い領域
内を必らず通るようにしており、又、同微孔絶縁板１５
の穴径の調整で殺菌セル１７内の電気的抵抗が大きく保
てるため高電導度の液に対しても高電界の形成が容易に
なるものである。Note that the microporous insulating plate 15 has two opposing electrodes 11.
The liquid is located between the micro-holes 15 and 15 so that the liquid always passes through the region of high electric field strength within the micro-holes.
By adjusting the hole diameter, the electric resistance inside the sterilization cell 17 can be kept large, making it easy to form a high electric field even for liquids with high conductivity.
そして、処理すべき細菌を含む液は原液タンク２から原
液供給ポンプ１６により原液供給ライン３を通じて殺菌
セル１７内に送られ微孔絶縁板１５内を（滞留時間約１
秒程度の流速で）流れ処理液ライン４を介してセル１７
外に排出されるようになっている。このとき、高電圧パ
ルス電源１と接続する多孔板状となっている陽電極１１
と陰電極１２はセル１７に対岐するように設けられてお
り、夫々の電極はアニオン交換膜１３もしくはカチオン
交換膜１４によす処理液と隔離され隔室１８．１９を形
成する。Then, the solution containing bacteria to be treated is sent from the stock solution tank 2 to the sterilization cell 17 through the stock solution supply line 3 by the stock solution supply pump 16, and passes through the microporous insulating plate 15 (retention time approximately 1
(at a flow rate of the order of seconds) flows through the treatment liquid line 4 to the cell 17.
It is designed to be discharged outside. At this time, a positive electrode 11 in the form of a porous plate connected to the high voltage pulse power source 1
A negative electrode 12 and a negative electrode 12 are provided so as to branch out from the cell 17, and each electrode is separated from the processing liquid applied to the anion exchange membrane 13 or cation exchange membrane 14 to form compartments 18 and 19.
夫々の隔室は、循環タンク５もしくは８から循環ポンプ
６もしくは９により、循環液供給ライン７或いは１０を
通じて液を流し、電極間の通電を可能とする。このとき
、夫々の循環系は何れか一方の系統へ継続ライン２０．
２１を接続することで、例えば陰電極側の系統を不用と
することが出来る。又、飲料水を処理液とするとき、陽
電極側では酸化作用が、陰極側では還元作用が生じる為
、アニオン交換膜１３を設け陽電極１１と処理液を隔離
することは絶対条件となるが、陰電極側は損耗が少く生
体に影響を及ぼさない白金電極を用いるとき、カチオン
交換膜は特に必要としない。従って、この場合陰電極側
の配管ラインは不要となる。Each compartment allows liquid to flow from a circulation tank 5 or 8 through a circulation liquid supply line 7 or 10 by a circulation pump 6 or 9, thereby allowing electrical current to flow between the electrodes. At this time, each circulatory system is connected to one of the systems via the continuation line 20.
By connecting 21, for example, the system on the negative electrode side can be made unnecessary. Furthermore, when drinking water is used as the treatment liquid, oxidation occurs on the anode side and reduction occurs on the cathode side, so it is an absolute requirement to provide an anion exchange membrane 13 to isolate the anion exchange membrane 11 from the treatment liquid. When a platinum electrode is used on the negative electrode side, which has little wear and does not affect living organisms, a cation exchange membrane is not particularly required. Therefore, in this case, a piping line on the cathode side is not required.
更に、原液の供給ライン３と処理液ライン４との接続関
係を逆にしてもよい。Furthermore, the connection relationship between the stock solution supply line 3 and the processing liquid line 4 may be reversed.
以上、本発明によれば次の効果を得ることができるもの
である。As described above, according to the present invention, the following effects can be obtained.
１、処理液の温度を上昇させることなく殺菌することが
可能である。1. It is possible to sterilize without increasing the temperature of the treatment liquid.
２、処理液の温度を上昇させない（低温殺菌の温度域）
ため加熱殺菌で問題の多かった味や香気を損うことなく
殺菌ができる。2. Do not increase the temperature of the processing liquid (temperature range for pasteurization)
Therefore, it can be sterilized without losing flavor or aroma, which was a problem with heat sterilization.
特に官能検査の厳しい清酒についても味や香気を損うこ
となく殺菌ができる。It is possible to sterilize sake without sacrificing taste or aroma, even for sake that undergoes particularly strict sensory tests.
第１図は、本発明の実施例を示す要部説明図である。
１・・・高電圧パルス電源、２・・・原液タンク、３・
・・原液供給ライン、４・・・処理液ライン ５．８・
・・循環液タンク、６，９・・・循環ポンプ、７，１０
・・・循環液供給ライン １１・・・陽電極、１２・・
・陰電極、１３・・・アニオン交換膜、１４・・・カチ
オン交換膜、１５・・・微孔絶縁板、１６・・・原液供
給ポンプ、１７・・・殺菌セル １８．１９・・・隔室
、２０、．２１・・・継続ライン。FIG. 1 is an explanatory diagram of main parts showing an embodiment of the present invention. 1... High voltage pulse power supply, 2... Stock solution tank, 3...
... Raw solution supply line, 4... Processing liquid line 5.8.
...Circulating fluid tank, 6,9...Circulating pump, 7,10
...Circulating fluid supply line 11...Positive electrode, 12...
・Cathode electrode, 13... Anion exchange membrane, 14... Cation exchange membrane, 15... Microporous insulating plate, 16... Stock solution supply pump, 17... Sterilization cell 18.19... Separation Room, 20,. 21... Continuation line.
Claims (1)
殺菌セルに陽電極と陰電極を微孔絶縁板を介して対岐す
るように取り付け、該微孔絶縁板と前記電極の間に夫々
イオン膜を設け処理液と各電極を隔離してなることを特
徴とする高電圧パルス殺菌装置。In a device that sterilizes liquid by applying high voltage pulses,
A positive electrode and a negative electrode are attached to the sterilization cell so as to be diagonal through a microporous insulating plate, and an ionic membrane is provided between the microporous insulating plate and the electrode to isolate the processing liquid from each electrode. A high voltage pulse sterilizer featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1167316A JPH0330767A (en) | 1989-06-29 | 1989-06-29 | High electric voltage pulse sterilization apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1167316A JPH0330767A (en) | 1989-06-29 | 1989-06-29 | High electric voltage pulse sterilization apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0330767A true JPH0330767A (en) | 1991-02-08 |
Family
ID=15847491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1167316A Pending JPH0330767A (en) | 1989-06-29 | 1989-06-29 | High electric voltage pulse sterilization apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0330767A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001170647A (en) * | 1999-12-15 | 2001-06-26 | Matsushita Electric Ind Co Ltd | Liquid supply device |
| WO2018180910A1 (en) * | 2017-03-29 | 2018-10-04 | ダイキン工業株式会社 | Discharge device |
-
1989
- 1989-06-29 JP JP1167316A patent/JPH0330767A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001170647A (en) * | 1999-12-15 | 2001-06-26 | Matsushita Electric Ind Co Ltd | Liquid supply device |
| WO2018180910A1 (en) * | 2017-03-29 | 2018-10-04 | ダイキン工業株式会社 | Discharge device |
| JP2018167142A (en) * | 2017-03-29 | 2018-11-01 | ダイキン工業株式会社 | Electric discharge apparatus |
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