EP1389172B1 - Dispositif generateur de vapeur d'eau pour le chauffage de denrees dans un four a micro-ondes - Google Patents

Dispositif generateur de vapeur d'eau pour le chauffage de denrees dans un four a micro-ondes Download PDF

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Publication number
EP1389172B1
EP1389172B1 EP02722362A EP02722362A EP1389172B1 EP 1389172 B1 EP1389172 B1 EP 1389172B1 EP 02722362 A EP02722362 A EP 02722362A EP 02722362 A EP02722362 A EP 02722362A EP 1389172 B1 EP1389172 B1 EP 1389172B1
Authority
EP
European Patent Office
Prior art keywords
water
sachet
packaging
gel
hydrocolloid
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.)
Expired - Lifetime
Application number
EP02722362A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1389172A1 (fr
Inventor
Edmond Roussel
Marc Henri Legrand
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.)
Atmosphere Controle
Original Assignee
Atmosphere Controle
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 FR0104086A external-priority patent/FR2822931A1/fr
Application filed by Atmosphere Controle filed Critical Atmosphere Controle
Publication of EP1389172A1 publication Critical patent/EP1389172A1/fr
Application granted granted Critical
Publication of EP1389172B1 publication Critical patent/EP1389172B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/3446—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated by microwaves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3401—Cooking or heating method specially adapted to the contents of the package
    • B65D2581/3429—Packages containing a secondary product to be cooked and discharged over the primary product
    • B65D2581/3433—Packages containing a secondary product to be cooked and discharged over the primary product to add moisture to the product, e.g. steaming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3439—Means for affecting the heating or cooking properties
    • B65D2581/345—Chemical browning agents or aroma adding agents, e.g. smoked flavour
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3471—Microwave reactive substances present in the packaging material
    • B65D2581/3485—Other unusual non-metallic substances, e.g. ivory, wood

Definitions

  • the present invention relates to a device for generating water vapor more specifically intended to be introduced into a package for heating or cooking, especially in the microwave of food.
  • a device for generating water vapor more specifically intended to be introduced into a package for heating or cooking, especially in the microwave of food is known for example from the document EP-A-1053944
  • microwave ovens Since their appearance on the market, microwave ovens are highly appreciated by consumers and many are households that have one.
  • microwave ovens allow very rapid cooking or reheating of foodstuffs since the internal layers of these directly capture radiated electromagnetic energy and that this energy is available immediately, without requiring any latency time for the rise oven temperature.
  • the rise in temperature is a result of infrared radiation phenomena, of conduction and convection, and the thermal energy absorbed by the surface layers of the food product to be heated diffuses towards the inner layers of it.
  • microwave heating results in thermal heterogeneity following a distribution non-uniform energy dissipated and absorbed in the heated product which cannot be compensated during heating by the diffusion of heat.
  • the first of these drawbacks is related to the fact that the source heat is formed by the food product itself; therefore the heating of this product is more important in its internal layers than on its surface, so the central region of it is often too hot and dry.
  • the second drawback is related to the fact that the heterogeneous distribution electromagnetic waves leads to the presence of dots "Hot” and “cold” points whose distribution, very variable, depends both from the oven (sizing of the cavity, structure and positioning of the radiating element, etc.) and of the product to be heated (composition, temperature, shape, volume, packaging, position in the oven, ).
  • the instability of heating in a microwave oven is also due to coupling phenomena between the product food to be heated, the oven cavity and the generator.
  • the power actually absorbed by this product depends indeed of the load represented by the assembly constituted by this one and the oven enclosure, which acts on the reflection of the waves towards the generator and on the power emitted by the latter.
  • the microwave thermal is also distinguished from the conventional thermal by inverting the thermal gradient in the mass of the heated product which results in an inversion of the direction of migration of the water ; however, as it is the food product which heats the oven, the water presents always having trouble evaporating so the periphery of this product always remains wet while its internal part dries up.
  • the water contained in this glass can indeed absorb waves electromagnetic emitted by the generator and transform them into vapor capable of transferring the energy received to the foodstuffs present in the oven.
  • the object of the present invention is to remedy these drawbacks by proposing a water vapor generating device which can be introduced into any type of packaging in at the same time as the food to be packaged, likely to trap a very large amount of water that can be returned by simple heating in the form of water vapor.
  • This device is characterized in that it consists of a packaging, in particular by a sachet made of at least one material partially porous to water vapor containing a susceptible gel to quickly absorb microwaves, this gel containing a portion by weight hydrocolloid, corresponding to its dry form, for at least 10 parts by weight of water.
  • convention means by hydrocolloid the dry form of such a gel.
  • the hydrocolloid is therefore capable of fixing a large amount of water in the form of a gel and return it in the form of steam due to heating caused in particular by microwaves.
  • the viscosity of this gel is at least equal to 2 to 3 10 -1 Pa.s.
  • the formation of the gel is consecutive to a physical reaction to retain water within a three-dimensional network formed by hydrocolloid molecules.
  • the water consequently loses all freedom and is therefore trapped and so to speak "masked" by the three-dimensional network.
  • the concentration of the hydrocolloid in the gel so as to be also as far as possible from the saturation limit and avoid as much as possible salting out, thereby improving the water retention capacity.
  • the device according to the invention if it is particularly suitable for heating or cooking in a microwave can also be put in a package for heating food with a thermal oven ...
  • the hydrocolloid can be chosen from natural molecules such as alginates, carrageenans or guar gum.
  • the hydrocolloid can be chosen from cellulose derivatives such as carboxymethyl cellulose or ethylcellulose.
  • the hydrocolloid can be chosen from synthetic superabsorbents, such as salts polyacrylic acids which absorb at least 7 times more water gram as blotters and up to about at least 50 times their weight of water.
  • the super absorbent can be used according to to the invention, corresponds to a crosslinked compound having a particle size variable can be located in a range from micrometer to several millimeters.
  • Water added to this hydrocolloid to allow formation gel can optionally be spring water, in particular in the case of the use of a natural hydrocolloid, in particular when the quality of water available at food packaging is questionable, and unsuitable for reassuring consumers.
  • This water can also if necessary and without it outside the scope of the invention to be added with ingredients such as perfumes, aromas, or natural volatile extracts likely to present various activities on the flavor or preservation of the food product (bacteriostatic or fungistatic; essential oils or oleoresins) or on the health and well-being of consumers.
  • ingredients such as perfumes, aromas, or natural volatile extracts likely to present various activities on the flavor or preservation of the food product (bacteriostatic or fungistatic; essential oils or oleoresins) or on the health and well-being of consumers.
  • the amount of gel contained in the sachet is in each case a function of the quantity of water vapor desired and the duration of production of this desired vapor.
  • the porosity of the sachet must be sufficient to allow rapid evacuation of the water vapor generated under the effect of microwaves, without risk of bursting of this sachet.
  • this porosity must as a rule be greater at 1500 ml / minute measured with the Bendtsen porosimeter.
  • this material can for example be made of a nonwoven material, in particular based on polyethylene or better polypropylene.
  • this material can be treated by adding a surfactant approved for food contact, in particular of the family of silicone derivatives, by way of example of polydimethylsiloxanes, in such a way as to make it hydrophilic and to accelerate the water transfer.
  • a surfactant approved for food contact in particular of the family of silicone derivatives, by way of example of polydimethylsiloxanes, in such a way as to make it hydrophilic and to accelerate the water transfer.
  • the generator device water vapor can, after the vapor production phase, reabsorb the condensates formed during cooling and also the exudates produced by the food product having been treated in the microwave.
  • the sachet is not waterproof and does not by itself have an absorbent character.
  • hydrocolloid a super absorbent such as polyacrylic acid salts, in a quality suitable for food contact.
  • the bag has an outer membrane of a material hydrophilic.
  • the sachet can be produced from a laminated paper on a perforated film welded on itself, the paper being placed on the outside of the bag.
  • the sachet can also be produced in a welded complex on itself constituted by an external face made of a non-hydrophilic material perforated and by an internal face made of a hydrophilic material in particular consisting of a nonwoven.
  • This confirmation has the advantage of allowing obtain a sachet whose outer face is less sensitive to the risks of contamination in contact with food.
  • non-hydrophilic material can be translucent and printed on its internal face in contact with the hydrophilic material.
  • a 120 x 80 mm sachet formed from 30 g / m 2 paper laminated on a perforated polypropylene film heat-sealed on itself containing on the one hand 2 g of super absorbent consisting of sodium polyacrylate and on the other hand 20 g of water can release about 5 liters of steam per minute of exposure in a microwave oven (750 W) for 5 minutes.
  • a sachet of 80 x 80 mm format formed on the one hand by two sheets associated by heat-sealing at their periphery, namely a sheet made of a material impermeable to water vapor coated with a layer of weldable polypropylene on its internal face and a sheet of 75 g / m 2 polypropylene nonwoven material and containing, on the other hand, 1.5 g of super absorbent consisting of sodium polyacrylate, can thus absorb, in contact with water, by the sheet made of polypropylene, at least 40 g of water in a few seconds.
  • This amount of water can be returned by heating as example in the microwave.
  • a sachet of format 80 x 80 mm made on the one hand in a complex welded on it even constituted by an external face in laminated perforated polyethylene on an inner face of a polypropylene nonwoven material and containing on the other hand 1.5 g of super absorbent consisting of polyacrylate of sodium, can absorb at least 40 g in contact with hot water of water in a few tens of seconds.
  • This amount of water can be returned by heating, as example in the microwave.
  • bags of 80 x 80 mm format have been produced in a complex welded on itself constituted by an external face made of perforated polyethylene terephthalate (PET) and by an internal face made of a hydrophilic non-woven material of PET / polyethylene (PE) itself made up of short two-component fibers (PET at the core and PE at the surface) associated with each other by thermal bonding to form a veil of 35 g per m 2 .
  • PET polyethylene terephthalate
  • PE polyethylene
  • the external PET perforated film is printed on the contact with the nonwoven material on which it is laminated.
  • the bag when placed under a 5.3 kg load, the bag becomes wet, and when placed under a load of 20 kg water pearls at the PET perforations.
  • the invention also relates to a packaging for the heating or cooking, in particular microwaves of foodstuffs characterized in that it contains foodstuffs as well as a device for generating steam of the aforementioned type.
  • This conditioning can of course be arbitrary, in particular be constituted by a tray made of a rigid material or semi rigid without departing from the scope of the invention.
  • such packaging is however constituted by a film of preferably heat shrink.
  • the film is produced in a plastic material transparent to microwaves.
  • the packaging can also incorporate a valve or, by example, a pre-cut, to prevent it from bursting at an overpressure too high.
  • the porosity of the sachet containing the gel can be reduced to a few 10 to 50 ml per minute measured with the Bendtsen porosimeter: in fact, the reduction in the volume of the packaging containing the commodity causes a rapid increase in pressure within it which has the effect of compensating for the internal pressure of the sachet and thus avoid its bursting.
  • this packaging in accordance with the invention can be adapted to a wide range of applications, in particular for blanching, pre-cooking or cooking fruit or vegetables fresh or even cereals and ready meals, and reheating products kept in negative cold not only by means of a microwave, but also by means of a thermal oven ...
  • microwave ovens currently commercially available can have two frequencies different.
  • the frequency of household microwave ovens is indeed 2,450 MHz while the frequency of industrial microwave ovens is 915 MHz.
  • Another advantage of the invention is linked to the fact that it enables operations such as conventional household ovens to be carried out than thawing large blocks of food that doesn't hitherto could only be carried out with industrial ovens.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Package Specialized In Special Use (AREA)
  • Cookers (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Constitution Of High-Frequency Heating (AREA)
EP02722362A 2001-03-27 2002-03-22 Dispositif generateur de vapeur d'eau pour le chauffage de denrees dans un four a micro-ondes Expired - Lifetime EP1389172B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
FR0104086 2001-03-27
FR0104086A FR2822931A1 (fr) 2001-03-27 2001-03-27 Dispositif generateur de vapeur d'eau, notamment pour le chauffage aux micro-ondes de denrees alimentaires
FR0113168 2001-10-12
FR0113168A FR2822932A1 (fr) 2001-03-27 2001-10-12 Dispsoitif generateur de vapeur d'eau apte a etre introduit dans un conditionnement pour le chauffage de denrees notamment aux micro-ondes et conditionnement renfermant un tel dispositif
PCT/FR2002/001008 WO2002076851A1 (fr) 2001-03-27 2002-03-22 Dispositif generateur de vapeur d'eau pour le chauffage de denrees dans un four a micro-ondes

Publications (2)

Publication Number Publication Date
EP1389172A1 EP1389172A1 (fr) 2004-02-18
EP1389172B1 true EP1389172B1 (fr) 2004-08-18

Family

ID=26212937

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02722362A Expired - Lifetime EP1389172B1 (fr) 2001-03-27 2002-03-22 Dispositif generateur de vapeur d'eau pour le chauffage de denrees dans un four a micro-ondes

Country Status (16)

Country Link
US (1) US20040169037A1 (ru)
EP (1) EP1389172B1 (ru)
JP (1) JP2004529829A (ru)
KR (1) KR20030094294A (ru)
CN (1) CN1247420C (ru)
AT (1) ATE273873T1 (ru)
AU (1) AU2002253250B2 (ru)
CA (1) CA2441894A1 (ru)
DE (1) DE60201031T2 (ru)
ES (1) ES2227461T3 (ru)
FR (1) FR2822932A1 (ru)
IL (1) IL158100A0 (ru)
MX (1) MXPA03008676A (ru)
NZ (1) NZ528881A (ru)
RU (1) RU2255029C2 (ru)
WO (1) WO2002076851A1 (ru)

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GB2421937B (en) * 2005-01-05 2008-07-02 Nigel John Brace Parker A water vapour generating device to improve the quality of prepared fresh produce cooked in microwave ovens within self-venting retail packaging
US7458195B2 (en) * 2005-01-14 2008-12-02 Frito-Lay North America, Inc. Method for making a multi-compartment microwavable package having a permeable wall between compartments
US8492689B2 (en) * 2005-07-20 2013-07-23 Frito-Lay North America, Inc. Microwaveable package having a steam source
JP5640623B2 (ja) * 2010-10-06 2014-12-17 東京電力株式会社 気化式加湿器
JP6374768B2 (ja) * 2014-11-13 2018-08-15 デンカ株式会社 マイクロ波吸収包装体およびそれを具備した電子レンジ加熱調理用容器と加熱調理方法
EP3282195B1 (en) 2015-04-06 2022-01-12 Nisshin Seifun Group Inc. Food cooking system
EP3282395A1 (en) * 2016-08-09 2018-02-14 POMONA Company Ltd. Sp. z o.o. Packaging for food products
BR112021024326A2 (pt) * 2019-07-10 2022-01-18 Eazy Roast Ltd Método e embalagem para torrefação de sementes de forma uniforme em um micro-ondas
IT201900014940A1 (it) * 2019-08-22 2021-02-22 Eazy Roast Ltd Metodo e confezione per la tostatura uniforme di semi in un forno a microonde

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Also Published As

Publication number Publication date
JP2004529829A (ja) 2004-09-30
ATE273873T1 (de) 2004-09-15
DE60201031D1 (de) 2004-09-23
AU2002253250B2 (en) 2004-11-25
CN1525928A (zh) 2004-09-01
CN1247420C (zh) 2006-03-29
IL158100A0 (en) 2004-03-28
ES2227461T3 (es) 2005-04-01
NZ528881A (en) 2005-04-29
CA2441894A1 (fr) 2002-10-03
FR2822932A1 (fr) 2002-10-04
US20040169037A1 (en) 2004-09-02
WO2002076851A1 (fr) 2002-10-03
DE60201031T2 (de) 2005-08-18
KR20030094294A (ko) 2003-12-11
EP1389172A1 (fr) 2004-02-18
MXPA03008676A (es) 2005-04-08
RU2255029C2 (ru) 2005-06-27

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