WO2007121494A2 - Stérilisateur micro-ondes - Google Patents

Stérilisateur micro-ondes Download PDF

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Publication number
WO2007121494A2
WO2007121494A2 PCT/AT2007/000171 AT2007000171W WO2007121494A2 WO 2007121494 A2 WO2007121494 A2 WO 2007121494A2 AT 2007000171 W AT2007000171 W AT 2007000171W WO 2007121494 A2 WO2007121494 A2 WO 2007121494A2
Authority
WO
WIPO (PCT)
Prior art keywords
microwave
sterilizer according
pasteurization
tunnel
container
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.)
Ceased
Application number
PCT/AT2007/000171
Other languages
German (de)
English (en)
Other versions
WO2007121494A3 (fr
Inventor
Hubert Petutschnig
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.)
Individual
Original Assignee
Individual
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
Priority claimed from AT6762006A external-priority patent/AT502609A1/de
Priority claimed from AT772007A external-priority patent/AT504716A1/de
Application filed by Individual filed Critical Individual
Publication of WO2007121494A2 publication Critical patent/WO2007121494A2/fr
Publication of WO2007121494A3 publication Critical patent/WO2007121494A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B55/00—Preserving, protecting or purifying packages or package contents in association with packaging
    • B65B55/02—Sterilising, e.g. of complete packages
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Disinfection or sterilisation of materials or objects, in general; Accessories therefor
    • A61L2/02—Disinfection or sterilisation of materials or objects, in general; Accessories therefor using physical processes
    • A61L2/08—Radiation
    • A61L2/12—Microwaves

Definitions

  • the invention relates to a microwave sterilizer according to the preamble of claim 1.
  • microwaves in microwave heaters according to the state of the art can never be conducted as accurately and uniformly into the mass of the sterilizing material of a passing container stream as for sterilizing a sensitive product, such as eg iced coffee with milk or cream in beverage cans. in exact
  • Pasteurization units without temperature overrun or underrun is essential.
  • Heater according to the prior art can not heat the contents of a single container exactly to a narrow target temperature, the expended for the targeted heating microwave energy depending on the contents, the output temperature of the
  • the invention is therefore an object of the invention to provide a microwave sterilizer of the type described, which is characterized in that the microwaves are uniformly concentrated in the Sterilleitersgut the individual containers of a container stream passed without microwave energy through unrecognizable uncontrollable reflections or as a result of interference and similar phenomena locally reduced or strengthened or led away, so that a uniform and homogeneous heating takes place in the individual containers with optimum energy yield of the microwaves. Furthermore, it should be possible that the content of each individual container of the entire container flow, regardless of its initial temperature, of its capacity or the
  • Deviations that lie outside the temperature tolerances can be detected, and the affected products can be discarded from the container stream.
  • the pasteurization space has the shape of a tunnel which has a cross section which is preferably similar to a circular shape.
  • the diameter of the tunnel cross-section may preferably be dimensioned smaller than the wavelength of the microwaves used.
  • Microwaves can be radially coupled into the tunnel from at least one microwave generator, preferably from a cascade of microwave generators arranged next to one another. Due to the structural distances of the individual Mikrowelleneinkoppelitch a structure can be created, which individual heating chambers or pasteurization corresponds.
  • the coupling of the microwaves can be done via rectangular waveguide, wherein the longer side of the rectangular waveguide is preferably parallel or transverse to the tunnel longitudinal direction.
  • At least one transport device for the introduction and removal of the sterilized good can lead through the sterilization tunnel, which has longitudinally-spaced drivers for longitudinally-spaced transport of the containers as seen in the transport direction, wherein the longitudinal distances are selected so that their distances are preferably not smaller than the depth of penetration of the heating chambers , so that in each heating chamber is essentially only a piece of container for pasteurization in the passage.
  • the container of the container stream are preferably transported in a horizontal position through the sterilization tunnel, which is characterized in that the bottom or lid of the container in the transport direction or transverse thereto, ie in the passage whose vertical axis is parallel or transverse to the transport direction, comparatively similar to a pneumatic tube.
  • the invention further relates to a method according to the preamble of claim 52, which is characterized in that the containers, in particular cylindrical plastic cans, are transported sequentially in a lying position through a number of Pasteurticianshus and in each pasteurization space microwaves in the container, in particular of below, coupled and allows the already mentioned advantages, in particular allows a uniform and rapid heating of the can contents.
  • Microwaves in the pasteurization tunnel predominantly, in particular entirely, below the passing through containers, or in particular when the
  • Cross-section takes place, wherein the longer cross-sectional side of the rectangular waveguide is preferably aligned approximately parallel to the conveying direction and the mean chamber depth in the conveying direction example by about 50% - 100% greater than the longer cross-sectional side of a waveguide.
  • Microwave is, hardly interference, and thus "hot spots" or
  • a homogeneous temperature distribution in the sterilizing material is essentially also achieved in that the coupling of the microwaves and thus the heating takes place from below the horizontal container, because physically by convection within the container, a mixing between the initial different temperature-controlled product layers only from bottom to top can be done, which in the experiment then actually only more temperature differences ⁇ 5 ° C are detectable within the Pasteurticiansgutes.
  • a continuous monitoring of the heating process can be carried out by a series of thermal sensors, in particular infrared sensors, which periodically monitor the heating process during the container cycle Measure surface temperature at several defined measuring points of the doses, 1 where a corresponding surface temperature is assigned a certain, empirically determined temperature of the contents of the can.
  • the particularly simple structure of the pasteurization tunnel with a cross section similar to a circular shape substantially corresponds to a tube through which the containers are conveyed through in the longitudinal direction.
  • this structure further allows the particular embodiment in a form similar to two half-shells, a lower and an upper, the lower half-shell is connected via flanges fixed to the microwave generators and the upper half-shell is provided via a mechanism liftable.
  • the microwave sterilizer has any number of microwave-tight service openings, for example, to remove bursted or stuck cans from the passage area quickly accessible manually or even to further cleanings
  • each container of the container stream is conveyed in a temporally and spatially precisely defined movement in. A lying position through the pasteurization tunnel, and from a number of
  • microwave generators which are connected to the sterilization tunnel and arranged at preferably regular intervals along the transport path, microwave dosed coupled intensity, time and / or time duration. Furthermore, at each beverage can during the
  • Heating profile which is compared with a corresponding desired heating profile, wherein each measurement point on the container stream, a programmed temperature can be assigned, whereby it is possible, the temperature rise of the content of each beverage can on the way through
  • temperature setpoints may be made individually for each individual can by increasing, decreasing, or disabling the injected microwave power of each one Microwave generator can be compensated.
  • the use or the recording of a measured value of each thermal imaging camera or of each thermal sensor takes place when a beverage can reaches different measuring points precisely defined in the conveying direction, whereby this position detection preferably takes place without contact, for example by optical, capacitive and / or laser sensors.
  • a preferred embodiment provides that a shaft, in particular the control of the transport unit, has a clock which drives a counter, whereby in combination of detection of the entry of a can in the sterilizer with the clock and counter the respective positions of all in the sterilizer located beverage cans are known precisely at any time during the passage.
  • This information can be used to preferably only ever start up the microwave generator for power output, at the Einkoppelungsort is a beverage can, the delivered for each beverage can microwave power beyond only until the required temperature for this position, after time and / or Power, continuous or pulsed, is coupled.
  • a relative target temperature is reached, or in addition no excess energy is coupled into the sterilizer, or eliminates the need to decouple excess microwave energy via an isolator and a circulator again.
  • the life of the microwave generators based on the number of sterilized containers is also extended. Beverage cans that do not reach or exceed the target temperature can be defined using this procedure or a rejection mechanism.
  • Another advantage of the individual heating of each individual beverage can is that if the target temperature of several containers is not reached in a row, it is immediately recognized that a technical disturbance in the area of the microwave generators or their energy supply can be present, and the sterilization system can therefore be stopped immediately.
  • Sterilization good within a beverage can continuous, mechanical mixing of the can contents proposed, preferably in such a way that this mixing effect is achieved by different, preferably changing, speeds of the transport conveyor, so controlled in the pulling direction oscillating movement of the transport conveyor. It can be provided for this purpose at least two different speeds, the beverage cans are preferably moved longitudinally parallel in the transport direction, the cans are moved in the microwave coupling at a lower speed at the coupling or come to a halt, or are the beverage cans in Passage between two
  • Coupling openings moved at a greater or higher speed. This transport with at least two different speeds is equal to a shaking of the cans in their longitudinal direction, which experience has shown to result in an extremely homogeneous temperature distribution in the sterilization material, ie the contents of the can.
  • a particularly good mixing is achieved when the transport of the beverage cans by the microwave sterilizer takes place in such a way that along the sterilization tunnel a kind of push or pull rod is provided, protrude from the preferably movable carrier and in the
  • This device can by means of a
  • Linear motor, electromagnet, pneumatic cylinder, etc. periodically perform an oscillating movement in the axial direction, wherein the
  • Stroke length of such a movement is preferably so great that, in particular in one cycle, a beverage can is always distinguished from a microwave
  • Transport sections Fig. 9 example Pasteurticianstunnel in side elevation with oscillating transport device, sectional view
  • FIG. 13 is a side elevation of a sterilization tunnel with a transport conveyor belt running through by way of example, FIG. 13a section of a transport conveyor, FIG. 14 is a tear-off of a sterilization tunnel with a transport conveyor belt running through by way of example in the middle, FIG. 15 Pipe pasteurization tunnel, ground plan
  • Fig. 17 Module-like structure of a sterilizer of the same
  • the pasteurization chamber of a microwave sterilizer consists of a pasteurization tunnel 1 made of metal, which is characterized by symbolic
  • Dividing axes 6, 9, etc., in the distances D1, D2, etc., in individual heating chambers 7, 8, 10, etc., or heating ranges with the section lengths A1, A2, etc., is divided.
  • These imaginary spatial separations arise in particular by the ratio of the widths 4, 4 ', etc., the Einkoppelungsflansche 3, 3', etc., to the distances D1, D2, etc., because only by such a large distance a chamber effect , in which it is ensured that the microwaves coupled in the axes 13, 14, etc., essentially penetrate only into the container to be sterilized and there to achieve the Frictional heat are consumed, but no significant influence of the microwave radiation in an adjacent heating section through
  • the chamber effect is gem by an exemplary embodiment of the inner wall of the pasteurization. 4, wherein here, too, sections are formed, for example, by the section axes 29, 30, 31, etc., but in each case the inner chamber diameter in the section axes 29, 30, 31, etc., is preferably smaller than in FIGS Regions of Einkoppelungsachsen 13, 14, etc. with the respective largest diameter of a chamber portion, whereby coupled microwave radiation, which is reflected at the respective opposite inner wall, exemplified by the arrows 27 and 28, according to the law of reflection back into the respectively einkoppelnden Chamber section is reflected back. It does not interfere with the adjacent chamber, resulting in a better specific energy yield and
  • Fig.7 can be provided with transverse coupling openings.
  • At least the lower half of the pasteurization tunnel with a microwave permeable thermally and mechanically highly resilient plastic 11, such as Teflon, sealed liquid-tight against the coupling openings.
  • a microwave permeable thermally and mechanically highly resilient plastic 11 such as Teflon
  • Fig. 5 shows a further preferred embodiment, which consists of a lower half-shell 1 and an upper half-shell 32, wherein the two half-shells are arranged to be movable relative to each other by means of a closure system 33, whereby an opening mechanism for service purposes, etc., is created.
  • Fig. 6 shows a further preferred embodiment, which is characterized by another cross-sectional shape, for example a rectangular shape of similar dimensions, wherein in the longitudinal direction instead of the corners
  • a transport conveyor 36 is provided in the longitudinal direction for the transport of the container stream, wherein the longitudinal distance of the individual containers is achieved by partitions 37 of the conveyor belt 36.
  • Fig. 7 shows a further preferred embodiment of a Pasteurization tunnels 38, 39, which is characterized in that exemplary coupling openings 40, 41, 42, etc., with the wider side of the rectangular waveguide are arranged transversely to the transport direction 43, wherein the coupling of the microwaves also here preferably from the bottom 40 of lower half shell 39 takes place.
  • FIG. 8 shows a further preferred embodiment, which is characterized in that the longitudinal path of the pasteurization tunnel including its transport device is subdivided by the sterilizer into sections A1, A2, A3, A4, etc., which in turn do not increase significantly in turn and again but in any case by the effect of convection of the hotter part of a beverage in the container each strives upward, so each flows into the higher-lying portion of a container, whereby a continuous mixing different tempered content takes place within a container.
  • the present invention will be further described by, but not limited to, the following example of FIG. 2:
  • the length of an exemplary heating section, in which the wider cross-sectional side of the rectangular waveguide is parallel to the transport direction, ie the tunnel longitudinal axis, is approximately 20% to 300% greater than the width of the rectangular waveguide, preferably approximately 50% to 150% greater, in particular 100%. larger than the larger side of the waveguide opening in cross section. Furthermore, the diameter of the pasteurization tunnel moves in comparison to the dimensions of the standard waveguide width provided here from -50% to
  • + 300% preferably between -25% to + 150%.
  • it is approximately the same size as the inner net width of the cross-sectional opening of the waveguide in FIG
  • Rectangular waveguide so based on the shorter side, preferably between 125% and 250%, in particular by 150%, of the considered in cross-section waveguide length so again the shorter cross-sectional side.
  • the pasteurization space 45 according to FIG. 1 has a small diameter in cross-section, which is approximately 10% to 100%, preferably 15% to 50%, in particular approximately 20%, larger than the diameter of a horizontal container.
  • the pasteurization space is one embodiment of an inventive device Microwave sterilizer from a made of metal pasteurization tunnel 1, which is preferably formed in cross-section of two longitudinally leading halves, ie an upper half-shell 1 and a lower half-shell 2, which in the region of the axis 28 - 28 'on both sides are microwave tight together.
  • the upper half-shell 1 has longitudinally extending the transport unit for the container transport for passage through the sterilizer and the lower half-shell 2 has the Einkoppelungsö Maschinenschenen the microwave generators. This arrangement is exemplary for a more uniform temperature distribution in the sterilization.
  • the lower half-shell 2 is preferably provided over its entire length with a microwave-stable and liquid-tight lining, preferably a plastic cladding such as: Teflon, to protect the underlying microwave generators, provided that the coupling takes place just from the bottom.
  • the panel is always provided only for the spatial, liquid-tight / gas-tight separation of sterilization and Einkoppelungsötechnisch, that is, when the coupling of the microwaves from the top or side, then the panel / seal just there to provide.
  • the half-shell 1 has in the exemplary embodiment according to. FIG.
  • Metal surface for the reflective inner surface of which a simple treatment against metal-attacking substances is sufficient.
  • a microwave sterilizer provides, in a preferred embodiment, a transport device for the containers passing through the sterilizer in such a way that over the entire length of the pasteurization tunnel a longitudinal guide 31 provided laterally for receiving a rod-shaped, axially oscillating rod is embedded therein Component 3 was created.
  • This lifting rod 3 is oscillated within a required and therefore precisely defined stroke length via a drive, so constantly moving back and forth, with movable driver 4, 5, 6, 7, etc., through the slots 20, 21, 22, 23, etc. , which protrude half shell 1 in the sterilization chamber 27.
  • each driver pushes a beverage can in front of him, when retracting the lifting rod 3 in the direction 33 of FIG. 3, the slide
  • Figure 10 shows a preferred embodiment of an upper half-shell 1, which has for example a recessed longitudinal guide 31 which is closed by the two side walls 18 and 19 on both sides, and wherein the longitudinal guide 31 upwardly through the cover 29 (Fig. 1) is microwave-tightly sealed, said longitudinal guide 31 via exemplary
  • FIG 11 shows an exemplary push rod 3 in elevation, wherein in a preferred embodiment drivers 4, 6, etc., on the one hand and drivers 5, 7, etc., are mounted on the other side, preferably by gravity up to an exemplary lower stop surface 13 fall down and abut against this, as long as the push rod performs a movement from the starting position 34 (35) in the direction 32.
  • These drivers are moved according to the illustrated movement line 39 when sliding over the underlying cans or containers up when the push rod 3 moves back in the course of the return movement 33 in the starting position 34.
  • the drive of the push rod 3 takes place either by a pneumatic or hydraulic cylinder, a linear motor or by the stroke of a
  • Electro-magnets or by a connection with an eccentric, the drive not necessarily once on the front side or in the rear end position (for example: position 39, Fig. 3) must be provided.
  • a plurality of smaller sized drives along the push rod 3 are mounted, which then preferably operate synchronized simultaneously, whereby the push rod 3 is exposed to a more uniform introduction of force over the entire length.
  • Figure 12 shows a plan view of a push rod 3, wherein in particular the recesses 8, 9, 10, 12, etc., are recognizable, which receive therein the movable drivers 4, 5, 6, 7, etc., wherein, for example
  • the Driver 4 is housed in the exemption 8.
  • the driver 4 preferably has a small shaft or axis, which is accommodated in the bore 17 with sufficient bearing clearance, on the opposite side of an enlarged opening 40 is provided for securing the axis.
  • FIG. 13 shows a further preferred embodiment of a preferably two-part sterilization tunnel, which consists of the upper half shell 91 and the lower half shell 92, wherein a functionally sufficiently large free space 96 is provided between the two half shells on both sides, for example, through which a longitudinally running conveyor belt is provided
  • This conveyor belt is characterized in that it has at intervals according to FIG. 13a exemptions 121, these exemptions are arranged so that they with the Positions of Einkoppelungsorte 119, 119 ', 119 ", etc., match, so that is shown in FIG. 14 in the passage of the container stream, in particular at the same time, above each Einkoppelungsort a beverage can, said beverage cans by the mounted on the conveyor belt 113 driver 120 in front of him be pushed.
  • FIG. 15 shows a further preferred embodiment of a pasteurization tunnel, which consists in one piece of a tubular body 42, wherein a series of openings is further provided, via which the exemplary flange connections 48, 50, 52, 54, etc., the hollow waveguides 49, 51, 53, 55, etc., are attached for the coupling of microwaves.
  • the sterilization room 41 also has, in a preferred embodiment, an inner lining 43 of preferably microwave-resistant plastic, such as e.g.
  • the sterilization tunnel is preferably installed in the machine frame, so that it occupies a tilt angle relative to the machine base plane, so that in the case of destroyed containers with contents outlet cleaning of the tunnel can be done by one-sided introduction of a cleaning liquid, the liquid exits on the inclined side and discharged from there can be.
  • FIG. 17 shows a further preferred embodiment of a
  • Each module preferably has its own movable sliding / pulling unit for transporting the containers, symbolically represented here by the vectors 66, 67, 68, 69, etc.
  • the transport units of a module group are replaced by a common
  • each module has its own Mikrowelleneinkoppelache 65.
  • the container 3 are advantageously cylindrical cans made of glass or plastic, possibly with aluminum lids.
  • Fig. 18 shows a sterilization tunnel 1 in elevation as a sectional view and Fig. 19 in plan view with exemplified beverage containers or in particular cylindrical cans 3, which lying transversely through the Sterilization tunnel 1 are moved in the conveying direction 6.
  • Transport chain can also be used other transport mechanisms.
  • the beverage cans 3 are located between the transport rollers 5 of the transport chain, which are connected by the connecting elements 4 exactly longitudinally spaced, so that the beverage cans 3 as shown in Fig. 19 as a dashed can figure 13, in particular at the same time, each come to rest just above the waveguide coupling openings ,
  • the same technical characteristics as in a can transport of cans in the longitudinal direction can be realized in order to achieve a mixing of the can contents at the speed changes during stopping and the speed recording.
  • at least two different transport speeds can be provided. There is a time-defined
  • Cans are present in the defined Einkoppelungs Symposium, thereby maintaining a same temperature of the container contents of all beverage cans, and to prevent doses in any transport position could be heated differently by uncontrolled Mikrowelleneinkoppelung.
  • By the 0 rotation of the cans 3 during transport is also a thorough mixing of
  • FIG. 18 further shows that the height 7 of the sterilization tunnel is only larger by the amount X than the diameter of the can 3.
  • the width 8 is only wider by the value X than the height of a can
  • the cans 3 are centrally located through the
  • the waveguide 2 is preferably smaller by the amount X than the can cross section 13, thereby ensuring that even with a scattering
  • a transport mechanism may be provided in a further preferred embodiment, as in a longitudinal can transport in such a way that the cans on the one hand with
  • Peripheral area is located at a Einkopplungsort, the coupling of microwaves is interrupted until it is ensured that the microwave energy is introduced only in the subsequent container. Accordingly, the control of the transport device takes place.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

L'invention concerne un stérilisateur micro-ondes servant à pasteuriser ou à stériliser des substances, de préférence des boissons ou des aliments liquides, contenus dans des emballages, de préférence des boîtes ou des bouteilles, fermés de façon étanche et de consistance principalement non métallique, lequel stérilisateur présente au moins une chambre de pasteurisation, servant en particulier au préchauffage, au réchauffage et éventuellement au refroidissement, au moins un générateur de micro-ondes relié à ladite chambre et au moins un dispositif destiné à transporter le produit à stériliser à travers la chambre de pasteurisation. Selon la présente invention, plusieurs chambres de réchauffage sont placées les unes derrière les autres dans le sens de transport de l'emballage de manière à former un tunnel (45); les chambres de pasteurisation respectives (45) se présentent sous la forme d'un tunnel pourvu de sections de réchauffage, dans lesquelles des micro-ondes sont injectées par au moins un générateur de micro-ondes en particulier par le dessous, et au moins un dispositif de transport (18), destiné à introduire et évacuer le produit à stériliser (13), est guidé à travers les chambres de réchauffage placées les unes derrière les autres.
PCT/AT2007/000171 2006-04-20 2007-04-13 Stérilisateur micro-ondes Ceased WO2007121494A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ATA676/2006 2006-04-20
AT6762006A AT502609A1 (de) 2005-09-29 2006-04-20 Mikrowellensterilisator / mikrowellenpasteur
ATA77/2007 2007-01-15
AT772007A AT504716A1 (de) 2007-01-15 2007-01-15 Mikrowellen sterilisator, transportvorrichtung

Publications (2)

Publication Number Publication Date
WO2007121494A2 true WO2007121494A2 (fr) 2007-11-01
WO2007121494A3 WO2007121494A3 (fr) 2007-12-27

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Application Number Title Priority Date Filing Date
PCT/AT2007/000171 Ceased WO2007121494A2 (fr) 2006-04-20 2007-04-13 Stérilisateur micro-ondes

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Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO873952L (no) * 1986-09-23 1988-03-24 Keyes Uk Ltd Fremgangsmaate for pakking av en matvare.
JPH0622537B2 (ja) * 1987-09-29 1994-03-30 凸版印刷株式会社 マイクロ波加熱殺菌方法
JPH0761248B2 (ja) * 1988-02-22 1995-07-05 凸版印刷株式会社 マイクロ波加熱殺菌方法
JPH0761249B2 (ja) * 1988-03-28 1995-07-05 凸版印刷株式会社 マイクロ波加熱殺菌装置
DE10138938A1 (de) * 2001-08-08 2003-02-20 Bosch Gmbh Robert Verfahren und Vorrichtung zur Sterilisation von Behältnissen

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WO2007121494A3 (fr) 2007-12-27

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