WO1993013674A1 - Procede et dispositif d'extermination de miroorganismes - Google Patents

Procede et dispositif d'extermination de miroorganismes Download PDF

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Publication number
WO1993013674A1
WO1993013674A1 PCT/EP1993/000078 EP9300078W WO9313674A1 WO 1993013674 A1 WO1993013674 A1 WO 1993013674A1 EP 9300078 W EP9300078 W EP 9300078W WO 9313674 A1 WO9313674 A1 WO 9313674A1
Authority
WO
WIPO (PCT)
Prior art keywords
ultrasound
medium
treatment
temperature
carried out
Prior art date
Application number
PCT/EP1993/000078
Other languages
German (de)
English (en)
Inventor
Franz Roiner
Klaus Kohrs
Original Assignee
Franz Roiner
Klaus Kohrs
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 DE19924206978 external-priority patent/DE4206978A1/de
Priority claimed from DE19924226848 external-priority patent/DE4226848A1/de
Application filed by Franz Roiner, Klaus Kohrs filed Critical Franz Roiner
Publication of WO1993013674A1 publication Critical patent/WO1993013674A1/fr
Priority to US08/252,658 priority Critical patent/US5571927A/en

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Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23C—DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
    • A23C3/00—Preservation of milk or milk preparations
    • A23C3/07—Preservation of milk or milk preparations by irradiation, e.g. by microwaves ; by sonic or ultrasonic waves
    • A23C3/073—Preservation of milk or milk preparations by irradiation, e.g. by microwaves ; by sonic or ultrasonic waves by sonic or ultrasonic waves
    • 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
    • A23L3/26—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating
    • A23L3/30—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating by treatment with ultrasonic waves
    • 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—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/025—Ultrasonics

Definitions

  • the invention relates to a method for killing microorganisms in a gaseous and / or liquid and / or pasty medium, in particular milk or milk products. If the medium is gaseous, it can contain dry matter and / or moisture.
  • the invention further relates to a device for performing such a method.
  • the method according to the invention is particularly suitable for milk and / or milk products. However, it is also suitable for all other gaseous, liquid and / or pasty media in which microorganisms are located. Microorganisms are understood to mean bacteria, viruses, molds, spores, cells and / or yeasts and / or other microorganisms. In addition to milk and / or milk products, the following media are particularly suitable as media in which microorganisms to be killed are present: blood, liquid egg, jam, fruit juices, beer, wine. However, the method according to the invention is also suitable for water.
  • milk can be treated by the following methods: continuous heating, short-term heating, high-temperature heating, ultra-high temperature heating and sterilization. In the latter two methods, a complete killing of the Microorganisms can be reached. With the other processes, only a partial killing of the microorganisms is achieved (ie a "reduction" of the microorganisms).
  • ultrasound treatment is used to clean objects, but not to kill germs.
  • objects are vibrated in a non-lethal environment.
  • a method for ultrasound sterilization in which an object to be sterilized is brought into a non-lethal environment and subjected to an ultrasound vibration while maintaining this environment.
  • the temperature rise of the object caused by the vibration is limited to a predetermined maximum value.
  • the object is intermittently exposed to vibration. If the temperature rises, which is caused by vibration, a certain time period is required to reach the respective temperature. During this time, however, changes in equilibrium of an uncontrollable nature occur in an unstable system such as milk.
  • the medium is preferably treated with ultrasound for a period of at most 6 seconds.
  • the frequency of the ultrasound is preferably at least 18 kHz and also preferably at least 20 kHz.
  • the power of the ultrasound is preferably at least 2,000 watts.
  • the medium is preferably treated with ultrasound for a period of at most 6 seconds.
  • the frequency of the ultrasound is preferably at least 18 kHz and also preferably at least 20 kHz.
  • the power of the ultrasound is preferably at least 2,000 watts.
  • the medium is preferably treated with ultrasound for a period of at most 6 seconds.
  • the frequency of the ultrasound is preferably at least 18 kHz and also preferably at least 20 kHz.
  • the power of the ultrasound is preferably at least 2,000 watts.
  • the medium is preferably treated with ultrasound for a period of at most 6 seconds.
  • the frequency of the ultrasound is preferably at least 18 kHz and also preferably at least 20 kHz.
  • the power of the ultrasound is preferably at least 2,000
  • the microorganisms can be partially or completely destroyed by the process according to the invention.
  • Another advantageous effect of the ultrasound treatment is homogenization of the medium.
  • the medium is moved during the ultrasound treatment; this can be done by the medium flowing and / or flowing.
  • the ultrasound treatment is therefore carried out in a moving and / or flowing and / or flowing medium.
  • the microorganism content could only be reduced by two orders of magnitude, that is to say about 1%.
  • With the required Absen Lowering the microorganism content is ultimately about achieving sufficient storage stability and maintaining the quality, in particular the freshness, of the products, in particular the milk products.
  • the ultrasound treatment be carried out at a temperature of the medium of at least 58 ° C. or at most 15 ° C.
  • the ultrasound treatment to be carried out according to the invention is an ultrasound treatment of a moving or unmoving medium containing microorganisms at temperatures of 0 to 50 ° C, preferably 45 ° C, and an intensity of 1800 watts or more and a sonication time of 30 to 60 seconds precedes such that the water activity in the medium is changed by changing the surface of the dispersed, emulsified and dissolved substances in the medium to be treated.
  • a further advantageous development is characterized in that the ultrasound treatment carried out according to the advantageous development just explained is carried out by pulse irradiation and / or by multiple irradiation and / or by differently directed irradiation at temperatures from 0 to 50 ° C, a duration of 30 to 60 seconds an intensity of 500 to 2500 watts leads to a change in the surface and / or membrane of the microorganisms.
  • the medium is preferably treated with directed ultrasound delt.
  • the ultrasonic waves are therefore directed; "directed ultrasound treatment” is carried out.
  • the ultrasound treatment is preferably carried out at varying temperatures.
  • the temperature of the medium is preferably 0 to 100 ° C.
  • the treatment with ultrasound is preferably carried out at elevated temperature. It has been shown that the ultrasound treatment for the purpose of killing microorganisms works in a temperature range of 25 to 50 ° C, but is not very effective. In this area, the microorganisms develop a relatively brisk metabolism.
  • the ultrasound treatment is therefore preferably carried out at a temperature which is at least 58 ° C. From this temperature, the results can be clearly improved. Under certain conditions, it is already possible not only to reduce the microorganisms, that is to say not only to partially kill the microorganisms, but also to kill the microorganisms, that is to say to completely kill the microorganisms.
  • the ultrasound treatment is carried out at a temperature of at least 60 ° C., preferably at least 65 ° C., preferably at least 70 ° C. It has been shown that from 70 ° C the microorganisms can be completely killed.
  • the tempe temperature of the medium is kept at a constant temperature during the treatment with ultrasound.
  • the treatment with ultrasound introduces energy into the medium which normally leads to an increase in temperature in the medium.
  • the medium is cooled in such a way that its temperature remains the same. This has the advantage that the optimum and maximum permissible temperature is maintained during the process. This is of particular importance for liquid egg, which must never exceed certain temperatures.
  • a further advantageous development is characterized in that the treatment with ultrasound is carried out first at an elevated temperature and then at a reduced temperature.
  • the temperature of the first stage does not have to be chosen quite as high, which protects the medium. This allows a certain increase in naturalness to be achieved.
  • the first, elevated temperature as high as for an exclusive treatment at elevated temperature. In this case, the achievable security is doubled.
  • an “elevated” temperature is to be understood as the elevated temperature described above, and also a “lowered” temperature.
  • Another advantageous development is characterized in that the temperature of the medium, starting from a temperature of at least 58 ° C, during the ultrasound treatment is increased. This has proven to be particularly effective.
  • the ultrasound source can be used as an energy source for increasing the temperature.
  • the power or the intensity of the ultrasound source drops with increasing temperature.
  • the power or intensity of the ultrasound acting on the medium is the lower, the higher the
  • Another advantageous development is characterized in that the temperature of the medium, starting from a temperature of at most 15 ° C, is reduced during the ultrasound treatment. This has also proven to be particularly effective.
  • the power or the intensity of the ultrasound source preferably increases with decreasing temperature of the medium.
  • the ultrasound treatment is preferably repeated one or more times. This can be done, for example, by the medium flowing through a device in which several ultrasound sources are arranged one behind the other in the direction of flow.
  • the treatment with ultrasound is preferably carried out for a predetermined time. Practical tests have shown that the number of microorganisms killed increases in principle with the duration of the ultrasound treatment.
  • the ultrasound treatment time is preferably at least 10 seconds. When heated to 85 ° C., it is then possible to kill all the microorganisms in milk. According to a further advantageous development, the duration of the treatment with ultrasound is at least 30 seconds. A complete destruction of the microorganisms in milk is possible if the temperature is at most 10 ° C. or at least 70 ° C.
  • the duration of the ultrasound treatment is at least 45 seconds. A complete kill of the microorganisms can then be achieved in milk if the temperature is at least 60 ° C.
  • a further advantageous development is characterized in that the duration of the ultrasound treatment, that is to say the sonication time, is 5 to 30 seconds.
  • the process according to the invention can be carried out at a pH of 7, that is to say in a neutral medium.
  • a pH of 7 that is to say in a neutral medium.
  • the pH is different from 7, ie if the medium is more or less acidic or basic.
  • the pH of the medium is preferably less than 7, more preferably less than 6, 8. This is particularly the case with milk from This is important because the protein bonds in the milk are released when the pH is above 7.
  • the pH value can be increased above 7, preferably above 7.1.
  • the medium is irradiated with microwaves before, during and / or after the ultrasound treatment.
  • the required temperature can be set by this microwave radiation. It is also possible, instead or in addition, to increase the effectiveness of the microorganism killing by means of the ultrasound treatment.
  • the medium and thus the microorganisms, cells, spores and the like located therein are exposed to a varying ultrasound intensity.
  • the ultrasound intensity can be increasing. But it can also be sloping. It can also initially increase and then decrease. Finally, the ultrasound intensity can initially decrease and then increase.
  • the intensity of the ultrasound acting on the medium is preferably increased during the ultrasound treatment.
  • the easiest way to achieve this is for the medium to flow towards the ultrasound source.
  • the volume or volume element of the medium is then irradiated more intensively the closer it is to the ultrasound source. If work is not carried out with a flowing medium, that is to say not continuously, but with a stationary medium, the intensity of the ultrasound acting on the medium can be increased by increasing the power of the ultrasound source.
  • a further advantageous development is characterized in that the different ultrasound intensities are pulsed properly carried out and / or interrupted at short notice.
  • the pulse-like and / or briefly interrupted different ultrasound intensities are preferably accompanied by a microwave treatment, the duration of which is preferably 3 seconds, preferably less than 3 seconds.
  • the movement of the medium is directed towards the ultrasound source or away from the ultrasound source or transversely to the ultrasound source.
  • the direction of movement of the medium can also consist of a combination of the options just described.
  • the intensity of the sonication is regulated by the distances between the ultrasound source and the medium, by the contact of the ultrasound source with the medium and by the depth of immersion of the ultrasound source in the medium.
  • the ultrasound sources can be connected in series or connected in parallel.
  • the ultrasound sources preferably have a special arrangement for the medium. They can be arranged vertically, transversely or at an angle. It is also possible to provide an alternating arrangement of these options.
  • Another advantageous further development is characterized in that the effect of the ultrasound treatment is achieved by the depth of action.
  • the ultrasound treatment can be carried out several times.
  • the ultrasound treatment can be carried out using ultrasound sources that differ in their power.
  • the dry matter fraction and / or the moisture fraction is varied in the gaseous media.
  • a further advantageous development is characterized in that the temperatures, pH values, viscosities, dry matter constituents, moisture components, flow velocities, flow velocities and / or the movement intensity are varied in the media to be treated during, before or after an ultrasound treatment.
  • Another advantageous further development is characterized in that coarse and / or finely dispersed substances are introduced into the PA and / or coarse and / or finely dispersed substances are additionally formed in the substrate to be PA and these are retained in the PA so that the destruction existing microorganisms and / or homogenization effects are accelerated.
  • the density of the medium is preferably at least 1.01 g / cm 3 .
  • the activity of the medium or the water activity is preferably at most 0.995.
  • the invention further relates to a device for carrying out the method according to the invention, that is to say a device for treating a gaseous, liquid and / or pasty medium with ultrasound.
  • the device according to the invention consists of a preferably cylindrical vessel with an inflow and an outflow and an ultrasound source (sonotrode).
  • the ultrasound source preferably projects into the vessel and into the medium.
  • the inflow is preferably arranged in the lower region of the vessel and the outflow in the upper region of the vessel.
  • the ultrasound source is then provided in the upper area of the vessel.
  • the inflow is arranged in the upper region of the vessel and the outflow in the lower region of the vessel.
  • the ultrasound source protrudes into the vessel.
  • the distance between the ultrasound source and the drain is preferably 60 to 80 mm.
  • ultrasound sources are provided, preferably on different sides of the vessel.
  • the ultrasound source has a certain shape, preferably a round shape.
  • a further advantageous development is characterized in that the ultrasound source is immersed in a closed space in which pressures of up to 10 bar, preferably 6 bar, can be generated and / or in which negative pressures can be generated.
  • the ultrasound sources are preferably stored in such a way that there is no direct contact with the surrounding material.
  • a varying ultrasound intensity is carried out or achieved by means of one or more ultrasound sources in certain arrangements. Furthermore, it has proven to be advantageous to carry out the ultrasound treatment itself in a pulsed manner or with short-term interruptions. This treatment is in particular achieved by appropriate distances between the ultrasound source and the moving medium or by contact or promoted by appropriate immersion depths of the ultrasound source or in the moving medium.
  • the invention further relates to a device for performing the method according to the invention, which is characterized in that the device is flowed through by the medium and that several ultrasound sources are provided in the flow direction in succession in the device.
  • Fig. 1 shows a first embodiment of a device for
  • FIG 3 shows a third embodiment of such a device.
  • the device shown in Fig. 1 for treating a medium with ultrasound consists of a cylindrical, upright vessel 1 with an inlet 2 and an outlet 3.
  • the inlet 2 is arranged in the lower region of the vessel 1, the outlet 3 in the upper region of the vessel 1.
  • an ultrasound source 4 is provided in the upper region of the vessel 1, which projects into the vessel and into the medium located therein. In order to achieve an optimal effect of the ultrasound source, it must have a certain minimum immersion depth. Practical tests have shown that the optimal immersion depth is 1 mm.
  • the vessel 1 is continuously flowed through.
  • FIG. 2 shows a second embodiment of a device device for the treatment of a liquid medium with ultrasound.
  • the vessel 11 leads out of the bottom of the vessel.
  • the vessel 11 is funnel-shaped 15 in the lower region.
  • the distance between the ultrasound source 14 and the inlet cross section 16 of the drain 13 is 60 to 80 mm.
  • the device according to FIG. 2 is also continuously flowed through.
  • FIG. 3 shows a third exemplary embodiment of a device for treating a medium with ultrasound.
  • the cylindrical vessel 21 has an inlet 22 and an outlet 23.
  • Two ultrasound sources 24, 25 are provided which are located on different sides of the vessel 21 and which are also at a horizontal distance from one another.
  • the device according to FIG. 3 is also continuously flowed through. Depending on requirements, more than two ultrasound sources can also be provided.
  • the starting material was 400 ml of raw milk in a beaker with a capacity of 500 ml.
  • the tests carried out and their results are shown below in tabular form:
  • microorganisms were completely killed at a temperature of 70 ° C, at all dilutions and with a sonication time of 30 seconds (case IVa) and with a sonication of 45 seconds (case IVb).
  • Example 1 In milk the density is brought to a value above 1.01 g / cwß. The water activity is reduced to below 995. The pH is adjusted to less than 6, 8 or more than 7.1. The temperature is set above 58 ° C. This also changes the viscosity of the milk.
  • the milk prepared in this way is subjected to an ultrasound treatment with a frequency of at least 18 kHz. The temperature of the milk is increased to a maximum of 29 ° C during the sonication process, starting at 58 ° C. The duration of the sonication is 5 to 30 seconds. With a sonication time of 30 seconds, about 74 ° C. is reached after 20 seconds and 99 ° C. after another 10 seconds.
  • the ultrasound treatment is thus carried out in such a way that the milk after 20 seconds a temperature of 74 ° C and has a temperature of 99 ° C after another 10 sec.
  • the power of the ultrasound source or ultrasound drops with this increasing temperature.
  • the number of microorganisms drops by four orders of magnitude.
  • Example 2 Again milk is treated, which is prepared as in Example 1.
  • the temperature of the milk during the ultrasound treatment is at most 15 ° C.
  • the temperature of the milk is set to 15 ° C.
  • the ultrasound treatment begins.
  • the temperature is reduced to 0 ° C during the ultrasound treatment.
  • the sonication time is 15 to 120 seconds.
  • the temperature drops linearly depending on the sonication time.
  • the power of the ultrasound source increases with falling temperature.
  • Example 3 Like Examples 1 and 2; after a done
  • Ultrasound treatment this ultrasound treatment is repeated one or more times in the same way.
  • the temperature of the milk is brought to the respective starting point.
  • the temperature of the milk is brought to 58 ° C. before the ultrasound treatment is repeated.
  • the temperature of the milk is brought to 15 ° C. before the ultrasound treatment is repeated.
  • the repeated sonication measures can be effected in that the milk flows in a device and in this device several ultrasound sources are arranged one behind the other in the direction of flow.
  • Example 4 The milk is treated in a device through which the milk flows. The stream of incoming milk is divided and treated by means of ultrasound sources connected in parallel.
  • Example 5 As example 1; during the temperature increase that takes place during the ultrasound treatment, temperature holding times are provided during which the temperature is not increased. This takes place within the temperature range of 58 ° C to 71 ° C. The temperature holding times can be carried out with or without sonication.
  • Example 6 As example 2; within the temperature range of 15 ° C to 6 ° C, temperature holding times are carried out with or without sonication.
  • Example 7 As example 1; the temperature changes of
  • Example 8 As example 2; the temperature changes of

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Food Science & Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Nutrition Science (AREA)
  • Physical Water Treatments (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Dairy Products (AREA)

Abstract

Un procédé permet d'exterminer les microorganismes dans un milieu gazeux, liquide et/ou pâteux, notamment du lait ou des produits laitiers. Afin d'améliorer ce procédé, on traite le milieu pendant au maximum 60 secondes aux ultra-sons à une fréquence d'au moins 20 kHz et une puissance d'au moins 2000 watts, tout en agitant le milieu. Un dispositif de traitement aux ultra-sons d'un milieu gazeux, liquide et/ou pâteux comprend un récipient (1) de préférence cylindrique pourvu d'une amenée (2) et d'une sortie (39), ainsi qu'une source d'ultra-sons (4) qui de préférence fait saillie dans le récipient (1) et dans le milieu.
PCT/EP1993/000078 1992-01-14 1993-01-14 Procede et dispositif d'extermination de miroorganismes WO1993013674A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US08/252,658 US5571927A (en) 1992-09-22 1994-05-19 Areno [E]indols, preparation method and application as intermediates in the synthesis of products with antitumoral activity

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DEP4200766.6 1992-01-14
DE4200766 1992-01-14
DEP4206978.5 1992-03-05
DE19924206978 DE4206978A1 (de) 1992-01-14 1992-03-05 Verfahren und vorrichtung zur abtoetung von mikroorganismen
DE19924226848 DE4226848A1 (de) 1992-08-13 1992-08-13 Verfahren und Vorrichtung zur Abtötung von Mikroorganismen
DEP4226848.6 1992-08-13

Publications (1)

Publication Number Publication Date
WO1993013674A1 true WO1993013674A1 (fr) 1993-07-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1993/000078 WO1993013674A1 (fr) 1992-01-14 1993-01-14 Procede et dispositif d'extermination de miroorganismes

Country Status (2)

Country Link
AU (1) AU3350293A (fr)
WO (1) WO1993013674A1 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0589303A1 (fr) * 1992-09-24 1994-03-30 MARTIN WALTER ULTRASCHALLTECHNIK GmbH Procédé de destruction d'enterobactéries
GB2285220A (en) * 1993-12-28 1995-07-05 Gabriele Tombesi Ultrasonic anti-allergen apparatus
EP0689774A3 (fr) * 1994-06-30 1996-05-15 Ixtlan Ag Procédé de sterilisation et homogénéisation de fluids utilisant des vibrations à fréquences élevées
BE1010407A4 (fr) * 1996-07-04 1998-07-07 Undatim Ultrasonics Procede et installation de traitement des eaux.
WO2000024667A1 (fr) * 1998-10-28 2000-05-04 Hilaire Fernand Achille Thomas Procede et dispositif de traitement d'une installation de robinetterie
WO2001023814A1 (fr) * 1999-09-30 2001-04-05 Saitec S.R.L. Procede et systeme permettant de refroidir et de provoquer un changement dans l'etat d'un melange liquide
US7048863B2 (en) 2003-07-08 2006-05-23 Ashland Licensing And Intellectual Property Llc Device and process for treating cutting fluids using ultrasound
WO2006107894A1 (fr) * 2005-04-04 2006-10-12 Cargill, Incorporated Matiere d'oeuf liquide
US7448859B2 (en) 2004-11-17 2008-11-11 Ashland Licensing And Intellectual Property Llc Devices and method for treating cooling fluids utilized in tire manufacturing
US7632413B2 (en) 2002-11-04 2009-12-15 Ashland Licensing And Intellectual Property Llc Process for treating a liquid medium using ultrasound
WO2012123608A1 (fr) 2011-03-17 2012-09-20 Gonzalez Velasco Pedro Dispositif et procédé de neutralisation d'éléments pathogènes dans des procédés œnologiques par ultrasons
WO2012131008A2 (fr) 2011-03-29 2012-10-04 Chr. Hansen A/S Inactivation de bactériophages dans un liquide
WO2014161519A1 (fr) * 2013-04-05 2014-10-09 Melnik Bodo C Procédé et dispositif de production de lait commercial et lait à effet biologique réduit d'acides ribonucléiques exosomiques
US9102553B2 (en) 2004-06-23 2015-08-11 Solenis Technologies, L.P. Devices and methods for treating fluids utilized in electrocoating processes with ultrasound
WO2017103262A1 (fr) * 2015-12-18 2017-06-22 Force Technology Installation et procédé de désinfection de produits alimentaires

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BE458181A (fr) *
DE739170C (de) * 1940-01-25 1943-09-13 Siemens Ag Verfahren zur Sterilisierung von Fluessigkeiten, insbesondere von Milch
GB663216A (en) * 1948-03-24 1951-12-19 Rech S Ind Et Chimiques S E R Process and installation for extraction and treatment of fatty vegetable substances
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GB2285220A (en) * 1993-12-28 1995-07-05 Gabriele Tombesi Ultrasonic anti-allergen apparatus
EP0689774A3 (fr) * 1994-06-30 1996-05-15 Ixtlan Ag Procédé de sterilisation et homogénéisation de fluids utilisant des vibrations à fréquences élevées
US8097170B2 (en) 1996-07-04 2012-01-17 Ashland Licensing And Intellectual Property Llc Process for treating a liquid medium
US6540922B1 (en) 1996-07-04 2003-04-01 Ashland, Inc. Method and device for treating a liquid medium
US6736979B2 (en) 1996-07-04 2004-05-18 Ashland, Inc. Device and process for treating a liquid medium
BE1010407A4 (fr) * 1996-07-04 1998-07-07 Undatim Ultrasonics Procede et installation de traitement des eaux.
US7718073B2 (en) 1996-07-04 2010-05-18 Ashland Licensing And Intellectual Property Llc Device and process for treating a liquid medium
US7267778B2 (en) 1996-07-04 2007-09-11 Ashland Licensing And Intellectual Property Llc Device and process for treating a liquid medium
WO2000024667A1 (fr) * 1998-10-28 2000-05-04 Hilaire Fernand Achille Thomas Procede et dispositif de traitement d'une installation de robinetterie
BE1012253A3 (nl) * 1998-10-28 2000-08-01 Thomas Hilaire Fernand Achille Werkwijze en inrichting voor het behandelen van een tapinstallatie.
WO2001023814A1 (fr) * 1999-09-30 2001-04-05 Saitec S.R.L. Procede et systeme permettant de refroidir et de provoquer un changement dans l'etat d'un melange liquide
US6666035B1 (en) 1999-09-30 2003-12-23 Saitec S.R.L. Method and system for cooling and effecting a change in state of a liquid mixture
US7632413B2 (en) 2002-11-04 2009-12-15 Ashland Licensing And Intellectual Property Llc Process for treating a liquid medium using ultrasound
US7048863B2 (en) 2003-07-08 2006-05-23 Ashland Licensing And Intellectual Property Llc Device and process for treating cutting fluids using ultrasound
US7514009B2 (en) 2003-07-08 2009-04-07 Ashland Licensing And Intellectual Property Llc Devices and processes for use in ultrasound treatment
US7404906B2 (en) 2003-07-08 2008-07-29 Ashland Licensing & Intellectual Property Llc Device and process for treating cutting fluids using ultrasound
US9102553B2 (en) 2004-06-23 2015-08-11 Solenis Technologies, L.P. Devices and methods for treating fluids utilized in electrocoating processes with ultrasound
US7448859B2 (en) 2004-11-17 2008-11-11 Ashland Licensing And Intellectual Property Llc Devices and method for treating cooling fluids utilized in tire manufacturing
WO2006107894A1 (fr) * 2005-04-04 2006-10-12 Cargill, Incorporated Matiere d'oeuf liquide
WO2012123608A1 (fr) 2011-03-17 2012-09-20 Gonzalez Velasco Pedro Dispositif et procédé de neutralisation d'éléments pathogènes dans des procédés œnologiques par ultrasons
WO2012131008A2 (fr) 2011-03-29 2012-10-04 Chr. Hansen A/S Inactivation de bactériophages dans un liquide
WO2014161519A1 (fr) * 2013-04-05 2014-10-09 Melnik Bodo C Procédé et dispositif de production de lait commercial et lait à effet biologique réduit d'acides ribonucléiques exosomiques
WO2017103262A1 (fr) * 2015-12-18 2017-06-22 Force Technology Installation et procédé de désinfection de produits alimentaires

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