FR2800574A1 - Disinfection plant also arresting degradation of fresh fruit and vegetables, recirculates water containing atomic oxygen from catalytic reactor to treatment tank - Google Patents

Disinfection plant also arresting degradation of fresh fruit and vegetables, recirculates water containing atomic oxygen from catalytic reactor to treatment tank Download PDF

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Publication number
FR2800574A1
FR2800574A1 FR9914319A FR9914319A FR2800574A1 FR 2800574 A1 FR2800574 A1 FR 2800574A1 FR 9914319 A FR9914319 A FR 9914319A FR 9914319 A FR9914319 A FR 9914319A FR 2800574 A1 FR2800574 A1 FR 2800574A1
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France
Prior art keywords
tank
catalytic reactor
water
transducers
vegetables
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Pending
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FR9914319A
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French (fr)
Inventor
Yves Rene Pierre Guibert
Georges Ceresoli
Roger Gilbert
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Individual
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Individual
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Priority to FR9914319A priority Critical patent/FR2800574A1/en
Publication of FR2800574A1 publication Critical patent/FR2800574A1/en
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Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
    • A23B7/153—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of liquids or solids
    • A23B7/157—Inorganic compounds
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/015—Preserving by irradiation or electric treatment without heating effect
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
    • A23B7/144—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of gases, e.g. fumigation; Compositions or apparatus therefor
    • A23B7/148—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
    • 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
    • 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
    • A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
    • A23L3/3409—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
    • A23L3/3418—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
    • 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
    • A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
    • A23L3/3454—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of liquids or solids
    • A23L3/358—Inorganic compounds

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Polymers & Plastics (AREA)
  • Food Science & Technology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Inorganic Chemistry (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Storage Of Fruits Or Vegetables (AREA)

Abstract

The treatment tank contains process water charged with nascent oxygen. The water is recirculated by a pump and line passing through a catalytic reactor. Water in the tank is subjected to agitation by transducers fed from an ultrasonic generator. Ultrasonic power employed is appropriate to the volume of treatment water. Preferred Features: The transducers are immersible, or are fixed to the tank. Numbers of transducers, individually of low, but equal power input, can be disposed at different locations in the tank. Water is recirculated between tank and catalytic reactor.

Description

La présente invention concerne un procédé de désinfection de fruits et légumes frais en milieu aqueux par de l'oxygène naissant engendré par un réacteur catalytique, et sous agitation uItasonique. The present invention relates to a process for disinfecting fresh fruit and vegetables in an aqueous medium with nascent oxygen generated by a catalytic reactor, and with Utonic agitation.

Ce procédé se distingue de la désinfection en milieu aqueux avec adjonction d'halogène, et en particulier du chlore, qui outre le fait d'entrainer la formation de trihalométhanes réputés dangereux pour l'homme par ingestion, n'inhibe pas de manière satisfaisante les réactions enzymatiques responsables de la dégradation des fruits et légumes conditionnés sous atmosphère inerte. This process differs from disinfection in an aqueous medium with the addition of halogen, and in particular chlorine, which, in addition to causing the formation of trihalomethanes known to be dangerous for humans by ingestion, does not satisfactorily inhibit the enzymatic reactions responsible for the degradation of fruits and vegetables packaged under an inert atmosphere.

On connaît 1a désinfection des fruits et légumes par l'ozone, qui n'a pu se développer de par les problèmes environnementaux découlant de son l'utilisation, et du danger pour le personnel exposé à ce gaz, y compris à très faible concentration. Disinfection of fruits and vegetables with ozone is known, which could not develop due to the environmental problems arising from its use, and from the danger for personnel exposed to this gas, including at very low concentrations.

On connaît également, par la demande de brevet N FR2750576 publiée le 09 Janvier 1998, un dispositif de lavage et de désinfection de feuilles de légumes basé sur le retournement des feuilles concernées par un flux aqueux, associé à une désinfection par le chlore. Also known, from patent application N FR2750576 published on January 09, 1998, is a device for washing and disinfecting vegetable leaves based on the inversion of the leaves concerned by an aqueous flow, associated with disinfection by chlorine.

On connaît aussi, par les demandes de brevets N W09800511 déposé le 08/04/l998, N WOJP9802010 déposé le 06/05;''l998, et N W09700337 déposé le 23/10/1997, des procèdes de désinfection faisant appel à des composés chimiques ou à des métaux lourds En opposition totale avec cet état de la technique, la présente invention ne fait pas appel à des gaz dangereux pour l'homme ou son environnement, mais permet la désinfection des fruits et légumes avec l'arrêt des réactions enzymatiques par l'action conjuguée de l'oxygène naissant et de l'agitation ultrasonique, qui permet de pénétrer les micros-interstices constitués par les alvéoles de la matière organique. There are also known, by patent applications N W09800511 filed on 08/04/1998, N WOJP9802010 filed on 06/05; '' l998, and N W09700337 filed on 10/23/1997, disinfection procedures using chemical compounds or heavy metals In total opposition to this state of the art, the present invention does not use gases harmful to man or his environment, but allows the disinfection of fruits and vegetables with the cessation of reactions enzymatic by the combined action of nascent oxygen and ultrasonic agitation, which allows to penetrate the micro-interstices formed by the alveoli of organic matter.

La cuve contenant le légume ou le fruit à laver est remplie d'eau contenant de l'oxygène naissant issu du réacteur catalytique, puis soumis à une agitation ultrasonique produite par un générateur de fréquences ultrasonores, et transmise par les transducteurs correspondant, en puissance, à la capacité du volume d'eau engagé, avec une durée de traitement de quelques minutes, en adéquation avec le type de produit à traiter, selon la taille des micros-alvéoles- Une agitation secondaire purement mécanique du produit à traiter, peut être adjointe à la cuve de lavage, pour assurer un parfait contact avec l'élément aqueux, lorsque sa densité est infèrieure à celle de l'eau, et lui éviter ainsi de rester en surface du liquide.Cette agitatation secondaire peut être réalisée par des remous créés par de l'air comprimé, ou par une hélice protégée par une grille afin de ne pas détruire la texture du produit en traitement. Le conditionnement du produit désinfecté reste identique à celui pratiqué en agro-alimentaire pour sa protection contre l'oxydation. The tank containing the vegetable or the fruit to be washed is filled with water containing nascent oxygen coming from the catalytic reactor, then subjected to an ultrasonic agitation produced by an ultrasonic frequency generator, and transmitted by the corresponding transducers, in power, the capacity of the volume of water used, with a treatment time of a few minutes, in line with the type of product to be treated, depending on the size of the micro-cells. A purely mechanical secondary agitation of the product to be treated can be added. to the washing tank, to ensure perfect contact with the aqueous element, when its density is lower than that of water, and thus prevent it from remaining on the surface of the liquid. This secondary agitation can be carried out by eddies created by compressed air, or by a propeller protected by a grid so as not to destroy the texture of the product being treated. The packaging of the disinfected product remains identical to that used in the food industry for its protection against oxidation.

L'invention sera de toute façon mieux comprise à l'aide de la description qui suit, en référence au dessin schématique annexé représentant, à titre d'exemple, une forme d'exécution du procédé de désinfection de fruits et légumes frais en milieu aqueux par de l'oxygène naissant engendré par un réacteur catalytique sous agitation par ultrasons. The invention will in any case be better understood with the aid of the description which follows, with reference to the attached diagrammatic drawing representing, by way of example, an embodiment of the process for disinfecting fresh fruit and vegetables in an aqueous medium. by nascent oxygen generated by a catalytic reactor with ultrasonic agitation.

Figure 1 est un schéma de principe du fonctionnement du process de désinfection. Figure 1 is a block diagram of the operation of the disinfection process.

Le dispositif comprend une cuve 1 dans laquelle est introduit le produit à traiter 2 et l'eau 3 chargée d'oxygène naissant produit dans le réacteur catalytique 4, cette eau étant véhiculée par une pompe de recyclage 5, lorsque la nécessité économique l'exige, par les tubulures d'admission et de refoulement 6. The device comprises a tank 1 into which is introduced the product to be treated 2 and the water 3 charged with nascent oxygen produced in the catalytic reactor 4, this water being conveyed by a recycling pump 5, when economic necessity requires it. , via the inlet and outlet pipes 6.

L'agitation interne destinée à atteindre les micros-interstices du produit à traiter et à renouveler en permanence l'eau chargée d'oxygène naissant dans ces micro-cavitées, est assurée par un générateur de fréquences ultrasonores 7, et transmise par les transducteurs 8 correspondant, en puissance, à la capacité du volume d'eau engagé. The internal agitation intended to reach the micro-interstices of the product to be treated and to constantly renew the water charged with oxygen emerging in these micro-cavities, is provided by an ultrasonic frequency generator 7, and transmitted by the transducers 8 corresponding, in power, to the capacity of the volume of water engaged.

L'invention précédemment décrite est applicable aux fruits et légumes destinés à être conservés en froid positif et conditionnés en emballage étanche sous gaz inerte. The invention described above is applicable to fruit and vegetables intended to be kept in positive cold and packaged in sealed packaging under inert gas.

Comme il va de soi, l'invention ne se limite pas à la seule forme d'exécution décrite ci-dessus ; elle en embrasse au contraire toutes les variantes de réalisations et d'applications respectant le même principe.Ainsi l'on ne s'éloignerait pas du cadre de l'invention en fixant les transducteurs ultasoniques 8 sur la cuve de traitement en lieu et place des transducteurs immergeables comme figurant sur la figure I,ou en disposant à différents emplacements de la cuve des transducteurs de plus faible puissance unitaire mais de puissance égale dans leur globalité.It goes without saying that the invention is not limited to the single embodiment described above; on the contrary, it embraces all the variants of embodiments and applications respecting the same principle. Thus one would not depart from the scope of the invention by fixing the ultrasonic transducers 8 on the treatment tank in place of the submersible transducers as shown in Figure I, or by having transducers of lower unit power but of equal power overall in different locations of the tank.

Claims (1)

REVENDICATIONS 1-Dispositif de désinfection de fruits et légumes frais en milieu aqueux, caractérisé en ce qu'il comprend essentiellement une cuve (1) contenant de l'eau de process (3) chargée d'oxygène naissant produit par un réacteur catalytique (4), véhiculée par une pompe de circulation (5) dans les tubulures d'admission et de refoulement (6), et soumise à une agitation ultrasonique engendrée par un générateur de fréquences ultrasonores (7), et transmise par les transducteurs (8)correspondant, en puissance, à la capacité du volume d'eau engagé. 2-Dispositif selon la revendication 1, caractérisé en ce que les transducteurs (8) peuvent être immergeables ou fixés sur la cuve (1) de traitement. 3-Dispositif selon la revendication 1, caractérisé en ce que les transducteurs (8) de plus faible puissance unitaire mais de puissance égale dans leur globalité peuvent être disposés à différents emplacements de la cuve (1) de traitement. 4-Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que l'eau sortant de la cuve de process est recyclée au réacteur catalytique puis réintroduite dans la cuve. CLAIMS 1-Device for disinfecting fresh fruit and vegetables in an aqueous medium, characterized in that it essentially comprises a tank (1) containing process water (3) charged with nascent oxygen produced by a catalytic reactor (4 ), conveyed by a circulation pump (5) in the inlet and outlet pipes (6), and subjected to ultrasonic agitation generated by an ultrasonic frequency generator (7), and transmitted by the corresponding transducers (8) , in power, to the capacity of the volume of water engaged. 2-Device according to claim 1, characterized in that the transducers (8) can be submersible or fixed to the tank (1) treatment. 3-Device according to claim 1, characterized in that the transducers (8) of lower unit power but of equal power in their entirety can be arranged at different locations of the treatment tank (1). 4-Device according to any one of the preceding claims, characterized in that the water leaving the process tank is recycled to the catalytic reactor and then reintroduced into the tank.
FR9914319A 1999-11-09 1999-11-09 Disinfection plant also arresting degradation of fresh fruit and vegetables, recirculates water containing atomic oxygen from catalytic reactor to treatment tank Pending FR2800574A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2178552A1 (en) * 2000-06-12 2002-12-16 Marti Vicente Jose Serra Techniques in agriculture involve irrigation, spraying and washing with water rich in oxygen produced by addition of ozone
EP2440302A2 (en) * 2009-06-03 2012-04-18 Hoppal R&D SA Device for decontamination of aqueous effluent by separation of immiscible phases and germicidal and/or oxidising treatment in order to reduce bod and/or cod

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Publication number Priority date Publication date Assignee Title
JPS56106547A (en) * 1980-01-25 1981-08-24 Kanekiyuu:Kk Storage of fresh fish and device therefor
JPS6485655A (en) * 1987-09-28 1989-03-30 Ishikawajima Harima Heavy Ind Sterilizing and washing apparatus
JPH02203739A (en) * 1989-02-03 1990-08-13 Toyo Eremento Kogyo Kk Cleaning and sterilizing apparatus for food
US5113881A (en) * 1989-06-25 1992-05-19 Israel Lin Dynamic ultrasonic cleaning and disinfecting device and method
EP0589303A1 (en) * 1992-09-24 1994-03-30 MARTIN WALTER ULTRASCHALLTECHNIK GmbH Process for killing enterobacteria
JPH06133685A (en) * 1992-10-22 1994-05-17 Hokuren Federation Of Agricult Coop:The Sterilization of food material
JPH06165637A (en) * 1992-05-08 1994-06-14 Farm Wakayama Kk Method for treating vegetable and fruit with ozone and apparatus therefor
US5667829A (en) * 1996-05-01 1997-09-16 Medagri, Inc. Method and apparatus for treating meat products with ultrasonic energy in an ozonated water environment
JPH1084930A (en) * 1996-09-17 1998-04-07 Hiramasa Shiyouji Food material washing machine
JPH11113547A (en) * 1997-10-16 1999-04-27 Awashimizu Echo Kk Cleaning of food material by using a bacteria-removed water and sterilized water and recycle system of the water

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Publication number Priority date Publication date Assignee Title
JPS56106547A (en) * 1980-01-25 1981-08-24 Kanekiyuu:Kk Storage of fresh fish and device therefor
JPS6485655A (en) * 1987-09-28 1989-03-30 Ishikawajima Harima Heavy Ind Sterilizing and washing apparatus
JPH02203739A (en) * 1989-02-03 1990-08-13 Toyo Eremento Kogyo Kk Cleaning and sterilizing apparatus for food
US5113881A (en) * 1989-06-25 1992-05-19 Israel Lin Dynamic ultrasonic cleaning and disinfecting device and method
JPH06165637A (en) * 1992-05-08 1994-06-14 Farm Wakayama Kk Method for treating vegetable and fruit with ozone and apparatus therefor
EP0589303A1 (en) * 1992-09-24 1994-03-30 MARTIN WALTER ULTRASCHALLTECHNIK GmbH Process for killing enterobacteria
JPH06133685A (en) * 1992-10-22 1994-05-17 Hokuren Federation Of Agricult Coop:The Sterilization of food material
US5667829A (en) * 1996-05-01 1997-09-16 Medagri, Inc. Method and apparatus for treating meat products with ultrasonic energy in an ozonated water environment
JPH1084930A (en) * 1996-09-17 1998-04-07 Hiramasa Shiyouji Food material washing machine
JPH11113547A (en) * 1997-10-16 1999-04-27 Awashimizu Echo Kk Cleaning of food material by using a bacteria-removed water and sterilized water and recycle system of the water

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2178552A1 (en) * 2000-06-12 2002-12-16 Marti Vicente Jose Serra Techniques in agriculture involve irrigation, spraying and washing with water rich in oxygen produced by addition of ozone
EP2440302A2 (en) * 2009-06-03 2012-04-18 Hoppal R&D SA Device for decontamination of aqueous effluent by separation of immiscible phases and germicidal and/or oxidising treatment in order to reduce bod and/or cod

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