EP0695129A1 - Procede et dispositif de sterilisation a haute pression - Google Patents

Procede et dispositif de sterilisation a haute pression

Info

Publication number
EP0695129A1
EP0695129A1 EP95909721A EP95909721A EP0695129A1 EP 0695129 A1 EP0695129 A1 EP 0695129A1 EP 95909721 A EP95909721 A EP 95909721A EP 95909721 A EP95909721 A EP 95909721A EP 0695129 A1 EP0695129 A1 EP 0695129A1
Authority
EP
European Patent Office
Prior art keywords
pressure
chamber
chambers
sterilization
pressure chamber
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.)
Withdrawn
Application number
EP95909721A
Other languages
German (de)
English (en)
Inventor
Josef Finnah
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Leifeld und Lemke Prozesstechnik & Co KG GmbH
Original Assignee
PVT PROZESS U VERPACKUNGSTECHN
PVT Prozess-u Verpackungstechnik GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by PVT PROZESS U VERPACKUNGSTECHN, PVT Prozess-u Verpackungstechnik GmbH filed Critical PVT PROZESS U VERPACKUNGSTECHN
Publication of EP0695129A1 publication Critical patent/EP0695129A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/015—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with pressure variation, shock, acceleration or shear stress or cavitation
    • A23L3/0155—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with pressure variation, shock, acceleration or shear stress or cavitation using sub- or super-atmospheric pressures, or pressure variations transmitted by a liquid or gas
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/015—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with pressure variation, shock, acceleration or shear stress or cavitation

Definitions

  • the invention relates to a method for high-pressure sterilization of foodstuffs which are exposed to high pressure in a pressure chamber for a predetermined period of time. Furthermore, the invention relates to a device for performing the method.
  • a corresponding method is also known from US Pat. No. 5,228,394, in which the continuity is achieved in that a plurality of high-pressure sterilization containers, preferably three, are connected in parallel and are filled and emptied in different cycles. The production flow is aligned so that the pressure vessels are filled in order and the first is emptied again when the last is completely filled.
  • a pressure lock for dispensing medium sterilized in a pressure tank in a filling tank is known from DE-PS 34 14 747.
  • this pressure lock in the form of a buffer tank only serves to reduce the pressure and has no influence on the discontinuity of the process.
  • the present invention is based on the object of providing a method of the generic type which enables a continuous sterilization process and reduces the energy expenditure, the method being easily integrable into conventional production processes. Furthermore, the invention is intended to provide an apparatus for performing the method.
  • the foodstuffs be transferred from one pressure chamber to another pressure chamber at least once during the predetermined period in which they are exposed to high pressure.
  • the method according to the invention enables continuous high-pressure sterilization with extremely little effort.
  • a series connection of pressure chambers enables the product to be filled into a pressure chamber, the pressure required to be built up there, the product to be to be transferred to a further pressure chamber within a certain period of time, so that the first pressure chamber is ready to receive the next sterilization batch.
  • the sequence of pressure chambers connected in series can be coordinated with the production process and behind the last pressure chamber, which is opened when the predetermined time period for high pressure application has ended, a pressure reduction can take place, so that the food can be passed on for further processing.
  • the pressure compensation requirement is kept extremely low, so that the energy consumption is considerably reduced.
  • the foods to be sterilized under high pressure are in the form of pumpable foods. It is particularly advantageous for the food to be pumped from one pressure chamber to another.
  • the food can be transferred from one pressure chamber to another by utilizing the high pressure present.
  • the food can also be temperature-treated during the high-pressure sterilization process.
  • the food can either be heated or cooled, depending on food technology requirements, without the high-pressure sterilization process being influenced.
  • the pressure chambers be sterilized before the first introduction of food.
  • the pressure chambers are advantageously sterilized by means of saturated steam, that is to say at approximately 140 ° C. Sterilization can take approximately 30 minutes.
  • saturated steam sterilization the pressure chambers are recooled and the residual condensate is then removed.
  • the invention proposes that it be blown out using sterile air.
  • the foodstuffs be guided, according to the method, into a first chamber which is hermetically sealed from the environment, so that a high pressure can be built up.
  • the sterilization process is initiated.
  • the pressure chamber with a connected to the second pressure chamber so that the food is fed into the second pressure chamber in which the high pressure is maintained in order to continue the sterilization process.
  • the first chamber is again available for initiating a further high-pressure sterilization process.
  • the last chamber is used for pressure reduction and for dispensing the high-pressure sterilized food. It is advantageously proposed that the pressure obtained during the pressure reduction be used in one of the pressure chambers, for example for filling. This measure influences the energy balance in a particularly advantageous manner.
  • the process according to the invention favors the continuous implementation of high-pressure sterilization of foods and can be integrated into known production processes without problems.
  • the method requires little energy in comparison with conventional methods and can be optimized with regard to the energy requirement.
  • the method according to the invention can be adapted extremely variably with regard to the production speeds, if only by selecting appropriate volumes of the pressure chambers.
  • a device for carrying out the method according to the invention is proposed for the technical solution of the above-mentioned task, which has at least two pressure chambers and pressure generating means that can be pressurized with high pressure, the pressure chamber in each case at least one valve for introducing or discharging food and one with a Have valve provided connection between the two chambers.
  • the device according to the invention enables continuous high-pressure sterilization operation, in which a first chamber can be filled via an inlet valve, then a high pressure is generated by a pressure generating means. that can, the food can be transferred via the valve-provided connection from the first to the second chamber, where they continue to be subjected to high pressure, in order to subsequently be led out of the chamber under pressure.
  • the pressure generating means are advantageously pistons.
  • the pistons preferably hydraulic pistons, arranged in the pressure chambers, a desired pressure can be exerted on the foodstuffs which are fed into the chambers in pumpable form or in packaged form in auxiliary liquids.
  • the device have at least one double chamber, two pressure chambers being separated from a piston that can be moved back and forth and connected to one another via valves.
  • This device enables high-pressure sterilization operation with optimal use of the energy supplied.
  • the food can be fed into one of the two chambers and pressurized there by piston movement. After opening valves, the food is led into the second chamber, the pressure being sufficient to advance the piston to completely empty the first chamber.
  • the piston is brought down again by emptying the second chamber and reducing the pressure.
  • At least one of the pressure chambers is connected to a compression chamber.
  • the compression chamber is a chamber with a comparatively small volume compared to the pressure chamber, in which a pressure generating means, for example a hydraulic piston, is arranged. After filling the first chamber and the compression chamber, a pressure can already be generated in that the compression chamber is emptied by the piston movement. This increases the pressure in the pressure chamber.
  • At least two chambers can be connected to one another via a third chamber in between.
  • This third pressure chamber is advantageously tubular. This measure is particularly advantageous because the pipe in its Length can be easily varied, so that the volume of the pressure chamber can also be adapted to the production conditions.
  • the length of the tubular connecting chambers is matched to the pressure maintenance interval in which the foodstuffs in this tubular chamber are sterilized under high pressure.
  • the tubular third connecting chamber offers considerable advantages. First, one of the two chambers of the double chamber system is filled and subjected to high pressure via a compression chamber or by the piston feed movement.
  • this chamber After a first time interval has elapsed, this chamber is connected to the connecting chamber, so that the food under pressure is led into the connecting chamber.
  • the first chamber can be refilled, while after a second high-pressure sterilization interval has elapsed, the connecting chamber is opened with respect to the second of the double chamber and the food is moved into this chamber as a result of the pressure present.
  • the pressure reduced here causes the piston to move, so that food is sucked back into the first chamber.
  • the device according to the invention comprises a plurality of pressure chambers which are successively filled and emptied in order to achieve a continuous product flow.
  • the device according to the invention is constructed with simple means and enables the method according to the invention to be carried out in order to achieve a continuous high-pressure sterilization process with low energy expenditure.
  • FIG. 1 shows a schematic illustration of a high-pressure sterilization device in a first operating state
  • FIG. 2 shows the device according to FIG. 1 in a further operating state
  • FIG. 3 shows the device according to FIG. 1 in a further operating state.
  • FIG. 1 the main piston 2 pneumatically operated in the exemplary embodiment shown above has been lowered, namely by supplying air via air inlet 15, as a result of which the product enters the upper product chamber 10 via the inlet valve 5. Furthermore, the piston 3 has been moved upwards by means of air supply through the air inlet 14 and has also absorbed product mass in the compression chamber 11.
  • FIG. 2 shows that the inlet valve 5 and the outlet valve 6 are closed before the compression piston 3 has been lowered via the air inlet 13, as a result of which a high compression of the product and thus the pressure on the product has arisen; from now on the product is exposed to a high pressure and the killing of the spores begins with this phase.
  • FIG. 3 shows, the valves 7 and 8 were opened.
  • the inlet valve 5 and the outlet valve 6 have remained closed, the compression piston 3 has remained unchanged in the same position, the main piston 2 has moved into the upper position and has displaced the highly compressed product into the pressure holding tube 9.
  • the product located in the pressure holding tube 9 has been partly led into the lower product chamber 1 2, depending on the pressure holding time.
  • the invention comprises the following functional sequence:
  • the inlet valve 5, outlet valve 6 and valves 7 and 8 are open.
  • the main piston 2 and the compression piston 3 are actuated intermittently. All rooms are sterilized using saturated steam at around 140 ° C for 30 minutes. After the sterilization process, the Recooling. The residual condensate is led out of the system by means of sterile air. Valves 7 and 8 are fired.
  • the main piston 2 is in the upper position, the compression piston 3 in the lower position. By lowering the main piston 2, product mass comes into the upper product chamber 1 0 via the inlet valve 5. Product mass also comes into the compression chamber 11 by lifting the compression piston 3. By lowering the main piston 2, the air still in the lower product chamber 1 2 is discharged via the outlet valve 6.
  • a special oil can also be introduced into the air chamber 1 7 via the air inlet 1 3 in order to carry out this compression of the product with a hydraulic system.
  • the described pneumatic movement does not have to be of the same size as the housing 1, but can be designed much larger or designed by multi-chamber cylinders in order to achieve the required pressure.
  • the embodiment shown and described in the figures comprises a total of three chambers, two of which are arranged in a double chamber system and are connected to one another by a tubular pressure chamber.
  • a valve system enables the device to be controlled in such a way that a continuous flow of food can be achieved.
  • a product is first introduced into the upper pressure chamber 10, which is placed under the desired high pressure via the compression chamber 11 and the main piston 2.
  • the product is guided into the tubular pressure chamber - called pressure maintaining tube 9.
  • the main piston 2 is raised further.
  • the foodstuffs are exposed to the pressure for a further time interval in order to complete the entire pressure holding time.

Landscapes

  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
  • Dairy Products (AREA)

Abstract

Afin d'avoir un procédé entrant dans la catégorie dont relève l'invention, qui permette d'effectuer une stérilisation en continu et de réduire considérablement la consommation d'énergie, et qui puisse être aisément intégré dans des processus de production classiques, il est proposé que les aliments soient soumis à une stérilisation à haute pression. Les aliments situés dans une chambre de pression (10), sont exposés pendant une période prédéfinie à une stérilisation à haute pression. Pendant la période prédéfinie, les aliments sont transférés au moins une fois d'une chambre de pression à une autre chambre de pression (12).
EP95909721A 1994-02-24 1995-02-15 Procede et dispositif de sterilisation a haute pression Withdrawn EP0695129A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4406028 1994-02-24
DE19944406028 DE4406028A1 (de) 1994-02-24 1994-02-24 Hochdrucksterilisator
PCT/EP1995/000543 WO1995022912A1 (fr) 1994-02-24 1995-02-15 Procede et dispositif de sterilisation a haute pression

Publications (1)

Publication Number Publication Date
EP0695129A1 true EP0695129A1 (fr) 1996-02-07

Family

ID=6511127

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95909721A Withdrawn EP0695129A1 (fr) 1994-02-24 1995-02-15 Procede et dispositif de sterilisation a haute pression

Country Status (3)

Country Link
EP (1) EP0695129A1 (fr)
DE (1) DE4406028A1 (fr)
WO (1) WO1995022912A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5996478A (en) * 1996-01-23 1999-12-07 Flow International Corporation Apparatus for pressure processing a pumpable food substance
US5993172A (en) * 1996-01-23 1999-11-30 Flow International Corporation Method and apparatus for pressure processing a pumpable substance
DE69704119T2 (de) * 1996-05-17 2001-08-02 Unilever Nv Verfahren zur konservierung unter hochdruck
DE19818224B4 (de) * 1998-04-26 2005-06-09 Müller, Ulrich, Prof. Dr.-Ing. Verfahren und Vorrichtung zur Entkeimung und Entwesung von Oberflächen durch wiederholte Kondensation
US6158981A (en) * 1998-06-18 2000-12-12 Flow International Corporation Method and apparatus for aseptic pressure-processing of pumpable substances
US6164930A (en) * 1998-06-18 2000-12-26 Flow International Corporation Apparatus for regulating flow of a pumped substance
US6804459B2 (en) 2001-06-15 2004-10-12 Flow International Corporation Method and apparatus for changing the temperature of a pressurized fluid
US7220381B2 (en) 2001-06-15 2007-05-22 Avure Technologies Incorporated Method for high pressure treatment of substances under controlled temperature conditions
WO2017054052A1 (fr) * 2015-09-29 2017-04-06 Cbh Fresh Pty Ltd Procédé à pression hydrostatique pour aliments à base de produit laitier
DE102017218070A1 (de) * 2017-10-11 2019-04-11 Robert Bosch Gmbh Verfahren und Vorrichtung zum Desinfizieren und/oder Sterilisieren einer Flüssigkeit

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1436282A (fr) * 1965-05-11 1966-04-22 Procédé de stérilisation et de pasteurisation de liquides par l'emploi de la cavitation
DE3308325A1 (de) * 1983-03-09 1984-09-13 Jakob Dr. 8000 München Hoiß Verfahren und vorrichtung zur vollstaendigen oder partiellen zerstoerung von mikroorganismen
GB2139994B (en) * 1983-04-19 1986-08-13 House Food Industrial Co Sterilizing + filling apparatus
US4873094A (en) * 1988-07-21 1989-10-10 Land O'lakes, Inc. Method of making an acidified dairy cream
CA2030003A1 (fr) * 1989-11-17 1991-05-18 Yu Horie Traitement a haute pression pour la fabrication de confitures
JPH07102119B2 (ja) * 1990-10-12 1995-11-08 凸版印刷株式会社 果汁の高圧処理方法
US5228394A (en) * 1990-11-02 1993-07-20 Kabushiki Kaisha Kobeseikosho Processing apparatus for food materials
US5213029A (en) * 1991-03-28 1993-05-25 Kabushiki Kaisha Kobe Seiko Sho Apparatus for treating food under high pressure
JP2622315B2 (ja) * 1991-04-17 1997-06-18 三菱重工業株式会社 連続加圧装置
SE501111C2 (sv) * 1993-03-25 1994-11-14 Asea Brown Boveri Förfarande och anordning vid högtrycksbehandling av flytande ämnen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9522912A1 *

Also Published As

Publication number Publication date
DE4406028A1 (de) 1995-08-31
WO1995022912A1 (fr) 1995-08-31

Similar Documents

Publication Publication Date Title
EP2308325B1 (fr) Procédé destiné au traement à haute pression de produits
EP2049275B1 (fr) Procédé de stérilisation de salles propres pour le traitement et/ou le remplissage et la fermeture de récipients
WO1994021145A1 (fr) Procede et dispositif de traitement sous haute pression de substances liquides
WO1995022912A1 (fr) Procede et dispositif de sterilisation a haute pression
EP2308759B1 (fr) Machine et procédé d'emballage et de traitement à haute pression de produits
EP2396632A1 (fr) Procédé, commande, agencement de vannes et dispositif de formation de portions pour le portionnement d'une pâte fluide, éventuellement mise sous pression
DE2552225C3 (de) Vorrichtung zur kontinuierlichen Beschickung eines Autoklaven
DE69019518T2 (de) Dosiervorrichtung.
EP3335568B1 (fr) Dispositif et procédé de fabrication d'un denrée alimentaire liquide ou semi-liquide
DE2702669A1 (de) Verfahren und vorrichtung zur behandlung von gegenstaenden in einer autoklavenkammer
EP1215166A2 (fr) Procédé et dispositif de remplissage des récipients de produit liquide
DE2140336C3 (de) Vorrichtung zum Sterilisieren von Lebensmitteln In Weichpackungen
DE60037935T2 (de) Kontinuierliches behandlungssystem
WO2007031236A1 (fr) Procede et dispositif pour reduire la quantite de germes en fonctionnement tandem
EP3192406B1 (fr) Actionneur hydraulique pour un appareil de préparation de boissons chaudes
EP2299853B1 (fr) Installation de pasteurisation
DE19702674C2 (de) Vorrichtung zur Abkühlung von Produkten, die flüchtige Komponenten, insbesondere Wasser enthalten, durch beschleunigte Abkühlung mittels Vakuum
DE2410283A1 (de) Verfahren und vorrichtung zur hitzebehandlung von lebensmitteln
WO2020078960A1 (fr) Procédé et dispositif pour traiter une denrée alimentaire liquide ou un produit analogue destiné à la mise en bouteille
DE102004044139B4 (de) Vorrichtung und Verfahren zum Verarbeiten einer karamellisierenden Süßwarenmasse
DE213151C (fr)
DE102019007679A1 (de) Hochdruckpresse zur verbesserten Saftpaskalisierung
DE524147C (de) Verfahren zum Kochen (Sterilisieren) oder Kuehlen von gefuellten Konservendosen
DE1016104B (de) Verfahren und Vorrichtung zum kontinuierlichen Entwaessern eines wasserhaltigen Gutes, z.B. Fleisch, unter Verwendung eines Waermetraegers, vorzugsweise OEl
DE102014109615A1 (de) Füllelement sowie Füllmaschine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19950928

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE IT SE

17Q First examination report despatched

Effective date: 19980915

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: LEIFELD UND LEMKE PROZESSTECHNIK GMBH & CO. KG

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19990126