GB2495524A - Sachet containing ozone dissolved in oil or glycerol for release into the atmosphere of packed food - Google Patents

Sachet containing ozone dissolved in oil or glycerol for release into the atmosphere of packed food Download PDF

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Publication number
GB2495524A
GB2495524A GB1117647.6A GB201117647A GB2495524A GB 2495524 A GB2495524 A GB 2495524A GB 201117647 A GB201117647 A GB 201117647A GB 2495524 A GB2495524 A GB 2495524A
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Prior art keywords
ozone
text
laminated
releasing device
atmosphere
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GB2495524B (en
GB201117647D0 (en
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Nigel John Brace Parker
Peter Herbert Holmes
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    • 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
    • A23B4/00—General methods for preserving meat, sausages, fish or fish products
    • A23B4/14—Preserving with chemicals not covered by groups A23B4/02 or A23B4/12
    • A23B4/16—Preserving with chemicals not covered by groups A23B4/02 or A23B4/12 in the form of gases, e.g. fumigation; Compositions or apparatus therefor
    • 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
    • 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
    • A23B7/152—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 comprising other gases in addition to CO2, N2, O2 or H2O ; Elimination of such other gases
    • 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
    • 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
    • A23L3/3445—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 comprising other gases in addition to 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
    • 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
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/001—Packaging other articles presenting special problems of foodstuffs, combined with their conservation
    • 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
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/02—Packaging agricultural or horticultural products
    • B65B25/04—Packaging fruit or vegetables
    • B65B25/041—Packaging fruit or vegetables combined with their conservation
    • 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
    • B65B29/00—Packaging of materials presenting special problems
    • B65B29/10—Packaging two or more different substances isolated from one another in the package but capable of being mixed without opening the package, e.g. forming packages containing a resin and hardener isolated by a frangible partition
    • 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
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • 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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/20—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for adding cards, coupons or other inserts to package contents
    • 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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/20—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for adding cards, coupons or other inserts to package contents
    • B65B61/22—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for adding cards, coupons or other inserts to package contents for placing protecting sheets, plugs, or wads over contents, e.g. cotton-wool in bottles of pills
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
    • 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
    • B65B29/00—Packaging of materials presenting special problems
    • B65B29/08—Packaging of edible materials intended to be cooked in the package

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Nutrition Science (AREA)
  • Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Agronomy & Crop Science (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Wrappers (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Packages (AREA)

Abstract

A device for releasing ozone gas comprises packaging fabricated from a single or composite material, impermeable to liquids but permeable to ozone and containing glycerol, vegetable oil, or blend of vegetable oils, in which ozone is dissolved. The device is designed to maintain a predetermined level of ozone within the pack atmosphere of modified atmosphere (MA) and controlled atmosphere (CA) packed foods. The release of ozone may be promoted or controlled by a relative rise in temperature, the diffusion gradient into the packaging, the percentage saturation of the oil with ozone, the material which forms the packaging and the surface area of the packaging. The packaging material may comprise polyamide or polyethylene.

Description

A SYSTEM DESIGNED TO RELEASE OZONE AT A PREDETERMINED LEVEL
Will-UN THE PACK ATMOPHERE OF MODIFIED ATMOSPHERE (MA) OR CONTROLLED ATMOSPHERE (CA) PACKED FOODS
Introduction to the Invention
1. Field of the Invention
2. This invention relates to an ozone releasing packaging indusion, in the form of a gas permeable sachet, containing a liquid materia' in which ozone is dissolved.
3. This device has been designed as an active inclusion, for use within ambient atmosphere1 elevated oxygen CA and conventional MA retail food packaging, to provide the controlled release at ozone to achieve a pre-determined level within gas composition of a pack atmosphere, which will allow a quality maintained, extended shelf life of packed whole and prepared fresh produce.
4. Description of the Related Art
5. The extension of retail convenience foods into the area of prepared, fresh fruit and vegetables is now a well-established, but still rapidly growing, market providing a wide range of ready to eat' and ready to cook', prepared fresh produce, in a range of retail packaging formats.
6. The majority of these packaging formats re'y on either modified atmosphere (MA), or to a much lesser, although increasing extent, controlled atmosphere (CA) packaging systems.
7. Modified Atmosphere Packaging (MAP) is characterised by: - * a hermetic pack closure, * gas permeable packaging materials with gas transmission rates, which, in concert with the respiratory activity of the product, will allow a pack atmosphere of a predetermined composition to be estabUshed, known as an Equilibrium Modified Atmosphere (EMA), usually within the range 5% -10% 02,5% -10% CO2 and 80% -90% NJ2, assisted on occasion by * the partial replacement, at the time of packing, of the ambient atmosphere within the pack, by a pack atmosphere with a composition approaching, or matching, that of the intended EMA.
8. This technology relies on nanofmicro perforated films and is mainly employed in horizontal or vertical, form, fifl and seal pouches, in which there is generally a large surface area to product mass ratio.
9. If the fresh produce is packed in a heat-sealed tray, on'y the lidding film is effectively availabe for gas transmission, providing a very poor surface area to product mass ratio. MAP wiU prove satisfactory for a pack life of the packing date plus five days (P+6).
1O.Controlled Atmosphere Packaging (CAP) on the other hand, is characterised by: - * a hermetic closure, * gas impermeable/barrier packaging materials, * the complete replacement, at the time of packing, of the ambient atmosphere within the pack, by a pack atmosphere of a predetermined gas composition, which in this case would be 97% 02 and 3/ø N2 and is not intentionally allowed to be modified by the respiratory activity of the packed product, * the ability to support of the pre-determined pack atmosphere by employing active packaging in the form of 02 generator/GO2 absorber inclusions.
11. In either packaging system shelf life will be limited by both bacterial, or fungal spoilage and senescence, the latter promoted by the generation, or presence of ethylene within the pack atmosphere.
12. In the case of bacterial spoilage organisms capable of causing disease and damage to both whole and prepared produce, these would include species within the following genera: - * Acetobacter * Flavobacterium * Enterobacter * Erwinia * Kurthia * Lactobacillus * Leuconostoc * Pediococcus * Pseudomonas 13. In the case of fungal spoilage organisms capable of causing disease and damage to both whole and prepared produce, these would generally include species within the following genera: - * Alternaria * Aspergillus * Botrytis * Fusarium * Gloesporiurn * Periicillium 14.Ozone, even at levels of O.O2ppm in the pack atmosphere, is capable of destroying the pathogenic and spoilage organisms found in the above genera, although efficacy is dependant on a combination of both contact time and atmospheric concentration, with its greatest influence being that of inhibition, especially of exposed structures such as developing fruiting bodies.
1 5.The presence in the pack atmosphere, even at extremely low concentrations, of the gas ethylene, a naturally occurring plant hormone, is not only a problem in the undesired acceleration of ripening and senescence in climacteric produce, but it can also significantly reduce shelf life in non-climacteric produce by promoting oxidative discolouration due to polyphenol oxidase activity.
16. In this regard, ozone is extremely effective, even when it is also at comparatively low levels, in disabling ethylene and minimizing its presence in the pack atmosphere.
17Th date, there have been no ozone releasing agents employed in retail food packaging, although there are available, however, both oxygen absorbing products, containing either iron powder, heavy metal catalytic converters or organic reducing agents, and carbon dioxide absorbing products, containing sodium carbonate, all of which are marketed in the form of either solid state pads or sachets fabricated from gas-permeable materials.
18.The manufacture, in sachet or pouch format, of the ozone releasing device, employs existing liquid filling and vertical, or horizontal, form, fill and seal technology.
19.The potential users of this device i.e., food packers and their retail customers, are already familiar with the sachet format as a pack inclusion.
20.The criteria, which this device has had to meet to be effective, are as follows:- * the packaging and fill materials to meet all current permitted packaging in contact with food regulations, * the fill material to effectively contained, * the fill material to be non-volatile within the temperature range the device is likely to experience in use, * the design to allow it to be discrete and unobtrusive within the retail pack, * the possession of an outer surface which will allow print of high definition.
21.me device meets the above criteria.
22k, the device, the sachet fill material will be a non-ionising liquid, in which ozone is carried in a stable solution, and meets all current permitted packaging in contact with food regulations.
23.Non-ionising liquids that meet the above requirements can be found among a number of naturally occurring ozone solvents, including glycerol and vegetable oils.
24. In this application, vegetable oils have been shown as being the most suitable fill material and will be selected, as determined to be appropriate for the particular application concerned and the specific performance that the latter requires, from a range of food grade vegetable ails, which include the following: - * grapeseedoil * groundnut oil * maize oil * linseed oil * palm oil * olive oil * rapeseed oil * safflower oil * soya oil * sunflower oil 25.The selected oil can be employed as a single product, or as a blend of two or more of the above oils, as determined to be appropriate, in terms of ozone solubility, for the particular application concerned and the specific performance that the latter requires.
26.Before being employed as a solvent, the selected oil, or blend of oils, will be temperature controlled at between 4°C and 6°C and this regime will be maintained throughout both the process of dissolving the ozone and the subsequent pre-packing storage and packing of the prepared fill material.
27.Ozone will be dissolved in the temperature controlled, selected oil, or blend of oils, by passing the gas through a sintered diffuser, immersed in the liquid, until a target, percentage saturated solution is achieved.
28.The percentage saturation of ozone in solution in the selected oil, or blend of oils will be controlled, as one of the means available to achieve the rate of release of ozone into a pack atmosphere, as determined by the particular requirements of the food products concerned, reflecting the pertinent aspects of surface area to mass/volume ratios and ozone transmission rates.
29.The prepared fill material, as an ozonated vegetable oil, will be stored, until required for sachet filling, in glass or polyethylene terephthalate (PET) storage vessels, the latter providing the level of barrier required to prevent transmission loss of the dissolved ozone.
30.As already stated, the materials, from which the sachet ort pouch is fabricated, must contain completely the fill material in order to avoid contamination of the food products, with which the device is in contact, while at the same time allowing the relatively free outward transmission of the ozone gas as it comes out of solution.
31.The material, from which the sachet is fabricated, must be uniform, flexible and have good heat-sealing characteristics, in order to allow it, in production, to be formed, filled and sealed at relatively high speed and in large quantities.
32.The material, from which the sachet is fabricated, in order to prevent a loss of pack integrity, by the failure of either the fabric, or the seals must also be resistant to oxidative damage by the ozone in solution.
33.The material, from which the sachet is fabricated, in order to provide, as a minimum, the statutory guidance information to consumers, must be able to carry high definition over-print, in inks that meet all current permitted packaging in contact with food regulations.
34.The materials that meet these criteria are tilms manufactured, either as a single material, or a laminate of two or more materials, from plastic polymers, which include the following: - * polyethylene (PE) * low density polyethylene (LDPE) * linear low density polyethylene (LLDPE) * co-extrusions of medium density polyethylene (MDPE) and LDPE or LLDPE * polyamide (PA) * poly lactic acid (PLA).
* polypropylene (PP) * polyvinyl chloride (PVC) * oriented polypropylene (OPP) 35.The gauge of the single polymer, or laminate film selected will range from lop to SOp and will be dependant on the size of the inclusion, its fill mass and the rate of release of ozone into a pack atmosphere, as determined by the particular requirements of the food products concerned and reflect the pertinent aspects of mechanical strength and ozone transmission rates.
36.The use of very low gauge polymer films will require these be supported by lamination to highly porous materials, such as non-woven polyethylene or polypropylene, in order to meet the mechanical strength requirements, as detailed previously.
37.The porosity of the supporting material will be selected so as not to reduce significantly the transmission rate of ozone by the supported polymer film or polymer film combinations.
38.The dimensions of sachets will relate to the volume of the fill material that is necessary to carry ozone in solution at the percentage saturation levels needed to achieve the rate of release of ozone into a pack atmosphere, as determined by the particular requirements of the food products concerned and reflecting the pertinent aspects of surface area to mass/volume ratios and ozone transmission rates.
39.The dimensions of the food packaging inclusion sachet in deployment will, in practice be governed by what is practical to manually or mechanically handle and in the case of retail packaging, allows it to be relatively discrete an unobtrusive.
40.The level of ozone that the device is capable of maintaining within the pack atmosphere can be regulated by the adjustment to one, or a combination of any of the following: - * the control of the percentage saturation, with ozone, of the selected vegetable oil, or blend of vegetable oils in the fill material, * the volume of the fill material.
* the polymer selection for the single polymer, co-extrusion polymers or laminated polymers envelope material, * the gauge of the single polymer, co-extrusion polymers or laminated polymers envelope material, * the surface area of the single polymer, co-extru&on polymers or laminated polymers envelope material (size ot sachet), 41 The device, as the filled sachet or pouch, is readily manufactured using standard form, fill and seal packaging technology employing volumetric depositing systems.
42. During manufacture, the fill material will be deposited, packed and sealed, while being held at between 4°C and 6°C.
43.During post-production storage, temperature controlled distribution and delivered storage, the device, as a tilled sachet, will be held at between 4°C and 6°C.
44.ln use, the device, as a filled sachet will be placed in the bulk or retail food package, together with the food product, at the time of packing 45. In use, the device, as a filled sachet or pouch, releases ozone from solution in the selected vegetable oil, or blend of vegetable oils, by diffusion through the single polymer, co-extrusion or laminated envelope material, into the pack atmosphere, promoted by a relative rise in temperature, provided by the conditions of retail display.
46. In use, the device, as a filled sachet or pouch, releases ozone from solution in the selected vegetable oil, or blend of vegetable oils, by diffusion through the single polymer, co-extrusion or laminated envelope material, into the pack atmosphere, promoted by the diffusion gradient provided by the differential in ozone concentration between that in the vegetable oil solvent and that in the pack atmosphere.
Summary of the Invention
47.The device in this invention comprises packaging fabricated from a single or composite material, impermeable to liquids but readily permeable to ozone and containing glycerol or vegetable oil, or blend of vegetable oils, in which ozone is dissolved, being designed, as a food packaging inclusion, to maintain a predetermined level of ozone within the pack atmosphere of ambient atmosphere, modified atmosphere (MA) and controlled atmosphere (CA) packed foods.
48.The sachet contains either glycerol or a food grade vegetable oil, or blend of vegetable oils, from a selection that includes grape seed oil, groundnut oil, linseed oil, maize oil, palm oil, olive oil, rapeseed oil, safflower oil, soya oil and sunflower oil, in which ozone has been dissolved to a predetermined percentage saturation level.
49.The sachet can be formed in a very wide range of sizes, although in practice the dimensions will be governed by what is practical for a retail food packaging inclusion allowing it to be relatively discrete an unobtrusive.
50. In order to retain fully the contents, when in contact with food, the sachet is fabricated from a either a lOp -63p gauge coextruded or non-laminated, or bi-laminated, or multi-laminated material manufactured from one, or several, single-compound plastic polymer films which are resistant to oxidative damage by the ozone in solution and include polyamide (PA), polyethylene (PE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), co-extrusions of medium density polyethylene (MDPE) and LDPE or LLDPE, poly lactic acid (PLA), polypropylene (PP), polyvinyl chloride (PVC) and oriented polypropylene (OPP).
51. In the case of the deployment of a low gauge coextruded or non-laminated, or bi-laminated, or multi-laminated material, in order to provide mechanical strength this will be supported by lamination with a non-woven polymer fabric of PE or PA 52. In order to allow adequate outward transmission of ozone, into the pack atmosphere as it comes out of solution, the sachet is fabricated from a either a lop -60p gauge cc-extruded or non-laminated or bi-laminated or multi-laminated material manufactured from one, or several, single-compound plastic polymer films, which are permeable to ozone and include PA, FE, LDPE, LLDPE, co-extrusions of MDPE and LDPE or LLDPE, PLA, PP, PVC and OPP.
53. In order to provide, as a minimum, the statutory guidance information to consumers, as high definition over-printing in inks that meet all current permitted packaging in contact with food regulations, the sachet is fabricated from a either a lop -60p gauge co-extruded or non-laminated or bi-laminated or multi-laminated material manufactured from one, or several, single-compound plastic polymer films, which are permeable to ozone and include PA, PE, LDPE, LLDPE, co-extrusions of MDPE and LDPE or LLDPE, PLA, PP, PVC and OPP.. 54.
55.The sachet is formed with dimensions relating to the volume of the fill material that is necessary to carry ozone in solution at the percentage saturaUon levels needed to achieve the rate of release of ozone into a pack atmosphere, as determined by the particular requirements of the food products concerned and reflect the pertinent aspects of surface area to mass/volume ratios and ozone transmission rates.
56.The period over which ozone can be released into, and maintained within the pack atmosphere is effected by adjustments to the control of the percentage saturation with ozone of the selected vegetable oil, or the blend of vegetable oils in the fill material, to the volume of the fill material as well as to the gauge, surface area and polymer selection, of the singleS-compound, or laminated film.

Claims (3)

  1. <claim-text>Claims 1. A device, comprising packaging fabricated from a single or composite material, impermeable to liquids but permeable to ozone and containing either glycerol or a vegetable oil, or blend of vegetable oils, in which ozone is dissolved, being designed, as a food packaging inclusion, to maintain a predetermined level of ozone within the pack atmosphere of both modified atmosphere (MA) and controlled atmosphere (CA) packed foods.</claim-text> <claim-text>2. The ozone releasing device according to claim 1, wherein the glycerol or vegetable oil, or blend of vegetable oils is a refined, food grade product.</claim-text> <claim-text>3. The ozone releasing device according to claim 1, wherein ozone is a gas and is dissolved in the glycerol or vegetable oil, or blend of vegetable oils.</claim-text> <claim-text>4. The ozone releasing device according to claim 1, wherein the percentage saturated solution of ozone in glycerol or vegetable oil or blend of vegetable oils can be adjusted to allow the level of ozone leaving solution and entering the pack atmosphere to meet the particular microbial control demands of the packed products concerned.</claim-text> <claim-text>5. The ozone releasing device according to claim I wherein the release of ozone is promoted by a relative rise in temperature, provided by the conditions of storage, distribution or retail display.</claim-text> <claim-text>6. The ozone releasing device according to claim 1, wherein the release of ozone is promoted by the diffusion gradient provided by the differential in ozone concentration between that in the vegetable oil solvent and that in the pack atmosphere.</claim-text> <claim-text>7. The ozone releasing device according to claim 1, wherein the rate of release of ozone into the pack atmosphere is controlled by adjustments to the volume of the fill material.</claim-text> <claim-text>8. The ozone releasing device according to claim 1, wherein the rate of release of ozone into the pack atmosphere is controlled by adjustments to the percentage saturation with ozone, of the selected vegetable oil, or the blend of vegetable oils in the fill material.</claim-text> <claim-text>9. The ozone releasing device according to claim 1, wherein the rate of release of ozone into the pack atmosphere is controlled by the selection of the polymer, co-extrusion polymers or laminated polymers envelope material.</claim-text> <claim-text>1 O.The ozone releasing device according to claim 1, wherein the rate of release of ozone into the pack atmosphere is controlled by adjustment of the gauge of the selected polymer, co-extrusion polymers or laminated polymers film envelope material.</claim-text> <claim-text>11.The ozone releasing device according to claim 1, wherein the rate of release of ozone into the pack atmosphere is controlled by adjustment of the surface area of the selected polymer, co-extrusion polymers or laminated polymers envelope material.</claim-text> <claim-text>1
  2. 2.The ozone releasing device according to claim 1, wherein the packaging is a sachet or pouch, with an oil impermeable, but ozone permeable envelope material fabricated from a single polymer or co-extruded polymers or laminated polymers.</claim-text> <claim-text>1
  3. 3.The ozone releasing device according to claim 1, wherein, in order to retain fully the contents, when in contact with food, the sachet or pouch envelope is fabricated from a lOp -SOp gauge co-extruded or non-laminated or bi-laminated or multi-laminated material manufactured from one, or several, single-compound polymer films which are resistant to oxidative damage by the ozone in solution and include polyamide (PA), polyethylene (PE), low density polyethylene (LOPE), linear low density polyethylene (LLDPE), co-extrusions of medium density polyethylene (MDPE) and LDPE or LLDPE, poly lactic acid (PLA), polypropylene (PP), polyvinyl chloride (PVC) and oriented polypropylene (OPP).</claim-text> <claim-text>14.The ozone releasing device according to claim 1, wherein, in order to provide mechanical strength in the case of the deployment of a low gauge coextruded or non-laminated, or bi-laminated, or multi-laminated material, the letter will be supported by lamination with a non-woven polymer fabric of polyethylene (PE) or polypropylene (PP).</claim-text> <claim-text>I 5.The ozone releasing device according to claim 1, wherein, in order to allow adequate outward transmission of ozone, into the pack atmosphere, as it comes out of solution, the sachet is fabricated from a lOp -60p gauge co-extruded or non-laminated or bi- laminated or multi-laminated material manufactured from one, or several, single-compound plastic polymer films, which are permeable to ozone and include polyamide (PA), polyethylene (PE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), co-extrusions of medium density polyethylene (MDPE) and LOPE or LLDPE, poly lactic acid (PLA), polypropylene (PP), polyvinyl chloride (PVC) and oriented polypropylene (OPP).</claim-text> <claim-text>16.The ozone releasing device according to claim 1, wherein the packaging is a sachet or pouch, the dimensions of which are adjusted to accommodate the mass of fill material required to meet the particular rate of ozone release demands of the packed products concerned.</claim-text> <claim-text>1 7.The ozone releasing device according to claim 1, wherein the packaging is a sachet or pouch and acts as secondary packaging, being an inclusion inserted into the primary packaging.</claim-text> <claim-text>18.A food secondary packaging system, according to claim 17, wherein the primary packaging is constituted by either thermo-formed trays and pots with lidding film or both horizontal and vertical, form, fill and seal pouches and bags.</claim-text>
GB1117647.6A 2011-10-12 2011-10-12 A system designed to release ozone at a predetermined level within the pack atmosphere of modified atmosphere (MA) or controlled atmosphere(CA) packed foods Expired - Fee Related GB2495524B (en)

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WO2017077538A1 (en) * 2015-11-05 2017-05-11 Eco Pack Green Box Usa Llc Compactly transportable collapsible container for perrishable goods

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WO2000073054A1 (en) * 1999-06-01 2000-12-07 Jose Gutman Ozone containing structure for sanitizing application
WO2002100455A2 (en) * 2001-06-08 2002-12-19 Baylor College Of Medicine Use of ozone for the prevention of infection caused by medical devices
JP2004113463A (en) * 2002-09-26 2004-04-15 Ebara Jitsugyo Co Ltd Method for sterilization, deodorization and freshness keeping of perishable food, vegetable and fruit, dwelling, medical facility, tool, or the like, using ozone gas permeable container, and the container used for the method
JP2006149272A (en) * 2004-11-29 2006-06-15 Akiyasu Inaba Ozone-generator for sterilization and prevention of bacterial spoilage
US20090258125A1 (en) * 2005-09-28 2009-10-15 Iceman Co., Ltd. Ozone Emitter, Method and Equipment for Producing the Ozone Emitter, and Method for Utilizing the Same

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Publication number Priority date Publication date Assignee Title
WO2000073054A1 (en) * 1999-06-01 2000-12-07 Jose Gutman Ozone containing structure for sanitizing application
WO2002100455A2 (en) * 2001-06-08 2002-12-19 Baylor College Of Medicine Use of ozone for the prevention of infection caused by medical devices
JP2004113463A (en) * 2002-09-26 2004-04-15 Ebara Jitsugyo Co Ltd Method for sterilization, deodorization and freshness keeping of perishable food, vegetable and fruit, dwelling, medical facility, tool, or the like, using ozone gas permeable container, and the container used for the method
JP2006149272A (en) * 2004-11-29 2006-06-15 Akiyasu Inaba Ozone-generator for sterilization and prevention of bacterial spoilage
US20090258125A1 (en) * 2005-09-28 2009-10-15 Iceman Co., Ltd. Ozone Emitter, Method and Equipment for Producing the Ozone Emitter, and Method for Utilizing the Same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017077538A1 (en) * 2015-11-05 2017-05-11 Eco Pack Green Box Usa Llc Compactly transportable collapsible container for perrishable goods

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GB201117647D0 (en) 2011-11-23

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