US3346398A - Method of preserving perishable material - Google Patents

Method of preserving perishable material Download PDF

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Publication number
US3346398A
US3346398A US337039A US33703964A US3346398A US 3346398 A US3346398 A US 3346398A US 337039 A US337039 A US 337039A US 33703964 A US33703964 A US 33703964A US 3346398 A US3346398 A US 3346398A
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United States
Prior art keywords
propylene oxide
container
sterilizing
oxide
ethylene oxide
Prior art date
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Expired - Lifetime
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US337039A
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English (en)
Inventor
Werner O Tundermann
Stuart D Friedman
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Colgate Palmolive Co
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Colgate Palmolive Co
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Filing date
Publication date
Application filed by Colgate Palmolive Co filed Critical Colgate Palmolive Co
Priority to US337039A priority Critical patent/US3346398A/en
Priority to SE14389/64A priority patent/SE321846B/xx
Priority to IT26166/64A priority patent/IT950503B/it
Priority to DE19641492598 priority patent/DE1492598A1/de
Priority to ES0307015A priority patent/ES307015A1/es
Priority to CH1619564A priority patent/CH458903A/de
Priority to AT1059564A priority patent/AT266567B/de
Priority to GB51618/64A priority patent/GB1035720A/en
Priority to FR529A priority patent/FR1458943A/fr
Priority to BE657875D priority patent/BE657875A/xx
Priority to NL6500073A priority patent/NL6500073A/xx
Priority to DK12465AA priority patent/DK126295B/da
Priority to BE691324D priority patent/BE691324A/fr
Application granted granted Critical
Publication of US3346398A publication Critical patent/US3346398A/en
Priority to MY196813A priority patent/MY6800013A/xx
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/20—Silicates
    • C01B33/26—Aluminium-containing silicates, i.e. silico-aluminates
    • C01B33/28—Base exchange silicates, e.g. zeolites
    • C01B33/2807—Zeolitic silicoaluminates with a tridimensional crystalline structure possessing molecular sieve properties; Isomorphous compounds wherein a part of the aluminium ore of the silicon present may be replaced by other elements such as gallium, germanium, phosphorus; Preparation of zeolitic molecular sieves from molecular sieves of another type or from preformed reacting mixtures

Definitions

  • the present invention relates to the preservation of perishable materials containing animal or vegetable matter which is subject to spoilage caused by bacteria or molds.
  • the invention is primarily concerned with the preservation of such materials by maintaining them in a bactericidal and fungicidal atmosphere.
  • ethylene oxide and propylene oxide As between ethylene oxide and propylene oxide, it has been found that the latter is generally more satisfactory as a sterilizing agent, for a number of reasons. For example, upon reaction with Water or moisture in the presence of food, propylene oxide hydrolyzes to form propylene glycol which is substantially non-toxic when consumed in amounts of the magnitude that would be found on or in food packaged in an atmosphere of propylene oxide. On the other hand, ethylene oxide hydrolyzes to produce ethylene glycol which is considerably more toxic. Also, while both propylene oxide and ethylene oxide are explosive when mixed with air, propylene oxide-air mixtures are explosive over a much narrower or more restricted composition range than are mixtures of air and ethylene oxide. Another important advantage of propylene oxide is that it is a liquid under normal conditions of temperature and pressure and therefore is easier to handle than ethylene oxide which is normally a gas.
  • an object of the present invention to provide safe, convenient and economical methods and compositions for employing ethylene oxide and/or propylene oxide as sterilizing agents for organic matter.
  • a further object of the invention is to provide methods and compositions for sterilizing organic matter by the use of ethylene oxide and/ or propylene oxide which are safe, require no special receptacles and do not call for expensive or elaborate equipment to maintain special conditions of temperature or pressure during their use.
  • a further object of the present invention is to provide a safe and efiicient method for using ethylene oxide and propylene oxide as sterilizing agents without serious danger of explosion.
  • a further object of the present invention is to provide compositions comprising ethylene oxide and/or propylene oxide and methods employing such compositions which enable animal and vegetable matter to be preserved from spoilage safely and conveniently and over extended periods of time.
  • Another object of the invention is to provide a method and compositions for preserving food by maintaining the food in an atmosphere comprising ethylene oxide and/or propylene oxide vapors.
  • An additional object of the present invention is to provide a method and composition for packaging food, especially food for distribution to consumers so that a sterilizing atmosphere of propylene oxide may be maintained in the package over an extended period of time.
  • FIG. 1 is a side cross-sectional view of a container including a sterilizing .composition in accordance with the present invention
  • FIG. 2 is a side cross-sectional view of a container comprising another composition in accordance with the present invention.
  • FIG. 3 is a side cross-sectional view of a portion of a sheet of packaging material coated with a sterilizing composition of the present invention
  • FIG. 4 is a side cross-sectional view of a portion of a sheet of packaging material comprising a sterilizing composition of the present invention
  • 7 FIG. is a side cross-sectional view of a package made from the material of FIG. 3 or FIG. 4.
  • the present invention generally comprises the preservation of animal and vegetable matter from spoilage by exposing such materials to an atmosphere of ethylene oxide and/or propylene oxide vapors and by providing for the relatively slow and controlled release of the ethylene oxide and/or propylene oxide vapors into the atmosphere surrounding the material to be protected.
  • compositions are provided which are capable of slowly releasing or diffusing sterilizing ethylene oxide and/or propylene oxide vapors over extended periods of time so that the sterilizing atmosphere may be maintained and continuously regenerated in circumstances where the food or other materials is temporarily exposed to the atmosphere, where the container is not air tight or where the container is constructed at least in part from materials pervious to air, moisture or propylene oxide vapors.
  • the invention also comprises compositions containing ethylene oxide and/or propylene oxide which are safe to use, which gradually release sterilizing vapors and which are so economical that they are entirely disposable.
  • animal or vegetable matter which is to be preserved is placed in a container together with an amount of molecular sieve having absorbed therein ethylene oxide and/ or propylene oxide as a sterilizing agent.
  • molecular sieves absorb moisture in preference to alkylene oxides so that as moisture is absorbed from the food or from the atmosphere surrounding the food or other organic matter in the container, alkylene oxide is gradually released from the molecular sieve into the atmosphere to maintain the contents in a sterilizing condition. The moisture, when absorbed in the sieve, results in desorption of the ethylene oxide or propylene oxide.
  • the moisture may be taken from the contents of the container, such as a foodstufi, or from the atmosphere present when the container is closed or admitted when the container is temporarily opened.
  • the molecular sieve function as a reservoir for the epoxide sterilizing agent, but it also simultaneously provides a dehydrating function which further contributes to the inhibition of mold growth and other processes of spoilage.
  • the slow diffusion or exudation of ethylene oxide or propylene oxide vapors from the molecular sieves has the added very important advantage that diffusion takes place more rapidly in high moisture containing atmospheres. Since it is under conditions of high relative humidity that the danger of spoilage is most acute, the fact that the release of the sterilizing agent takes place more rapidly under such conditions is an especially important aspect of the invention.
  • the release of absorbed sterilizing agents from other adsorbents would not ordinarily be responsive to changes in relative humidity.
  • Another important embodiment of the present inven tion comprises the introduction of ethylene oxide or propylene oxide liquid or gas into closed tubes, packets, capsules or the like which are pervious to propylene oxide vapors and the insertion of such epoxide containers into a package or receptacle containing material to be preserved against spoilage.
  • This method enables the diffusion of the epoxide vapors to be controlled so that the sterilizing agent is continuously but gradually diffused through the wall of the capsule into the atmosphere surrounding the food or similar material.
  • a preferred method for carrying out this embodiment of the invention comprises introducing liquid ethylene oxide and/or propylene oxide into a sealed tube or capsule of a plastic which is permeable by the alkylene oxide vapors.
  • polyethylene is a very suitable ma terial for use in forming the capsules or tube to receive the sterilizing agent.
  • Another very important embodiment of the invention comprises the incorporation of liquid propylene oxide into a fixative which enables ethylene oxide and/ or propylene oxide vapors to be slowly and gradually exuded or diffused.
  • the preferred method for accomplishing this embodiment of the invention comprises dissolving propylene oxide in a film-forming fixative. This solution may then be used as a coating or impregnant on various materials used for the packaging of food or similar commodities.
  • fixatives are polyethylene glycol polymers having molecular weights ranging from about 200 to about 600 or higher, cellulose acetate, cellulose nitrate, shellac, etc.
  • FIG. 1 The use of molecular sieves containing absorbed propylene oxide to sterilize foodstuffs or the like is illustrated in FIG. 1 of the drawing.
  • container 10 is filled with a material 11 which is to be preserved against spoilage.
  • One or more pellets of molecular sieve 12 containing absorbed ethylene oxide or propylene oxide are introduced into the container to furnish the desired sterilizing atmosphere.
  • the contents 11 of the container 10 may be any material of animal or vegetable origin which may be attacked by bacteria or mold.
  • the container 10 may be of any size and construction.
  • it may be the familiar small volume metal can or jar employed in sales to the consumer and having a volume of from a few ounces up to one or two quarts.
  • the container may be a drum of considerable capacity used in commercial operations and having a volume of many gallons.
  • the container may be constructed of metal, plastic, paper and combinations of these and other conventional packaging materials.
  • the molecular sieve pellets 12 may be segregated from the contents 11 of the container by a perforated diaphragm 13 which freely permits transfer of moisture and the ethylene oxide or propylene oxide vapors between the molecular sieve compartment 14 and the other compartment 15 in which material subject to spoilage is located.
  • contents of the container to be preserved are materials for internal human or animal consumption
  • propylene oxide is used as the sterilizing agent since its residue is substantially non-toxic. Otherwise, ethylene and/ or propylene oxide may be used.
  • the amount of molecular sieve and alkylene oxide composition may be varied in accordance with the size of the container and its intended or usual method of use.
  • the container is the type which is sealed air tight and then is ordinarily opened, emptied, and disposed of, then only enough of the sterilizing composition need be included to maintain sterility within the container prior to opening.
  • the container is of a type which is ordinarily opened, partially emptied and reclosed, more of the molecular sieve-propylene oxide composition may be desirable, so that the sterilizing atmosphere may be regenerated a number of times as the container is opened and reclosed.
  • Molecular sieves of the type used in this invention are crystalline metal aluminosilicate materials of the following general formula:
  • n is the valence of the metal cation M
  • M ordinarily is Na or K but may be other cations substituted by exchange
  • Y is the number of moles of alumina
  • Z is the number of moles of Water of hydration.
  • the crystalline metal aluminosilicates Upon removal of the water of hydration by heating, the crystalline metal aluminosilicates become highly porous and are characterized by a series of surface cavities and internal pores which form an interconnecting network of passageways within the crystal. Due to the crystalline nature of such materials, the diameters of the surface cavities and of the internal pores is substantially constant and is of molecular magnitude. For this reason, the crystalline metal aluminosilicates have found wide use in the separation of materials according to molecular size or configuration, hence the name molecular sieves.
  • Molecular sieves or crystalline aluminosilicates are also sometimes referred to as crystalline zeolites and are of bot-h natural and synthetic origin.
  • Synthetic materials include, for example, synthetic faujasite.
  • Natural crystalline aluminosilicates exhibiting molecular sieve activity include for example, analcite, paulingite, ptilolite, clinoptilolite, ferrierite, chabazite, gmelinite, levynite, erionite and mordenite.
  • 13X molecular sieve is a sieve of the X type which is believed to have pores having diameters of about 13 angstroms.
  • a molecular sieve is a synthetic crystalline aluminosilicate of the A type having pores the diameters of which are approximately 5 angstroms.
  • sterilizing compositions are prepared by heating a molecular sieve material, preferably in the form of compacted pellets, spheres or the like to remove moisture and then causing Sliced Tomatoes.
  • the dried sieve to be impregnated with ethylene oxide or propylene oxide.
  • the impregnation may be accomplished by immersing crystals or pelleted crystals of the molecular sieve in liquid ethylene oxide or propylene oxide or by placing the pellets or crystals in a closed vessel containing the oxide vapors.
  • 123 tablets of 13X molecular sieve having a thickness of A and a diameter of were baked overnight in an oven at a temperature of 500 F. to drive off absorbed moisture.
  • the dried tablets were then quickly transferred to a porous bag and the bag was suspended in a closed glass container above the level of liquid propylene oxide placed in the bottom of the container.
  • the molecular sieve was thus exposed for a period of 5 days during which time the temperature was maintained at about 45 F. Upon Weighing, it was found that the molecular sieve had adsorbed about 20% by weight of propylene oxide into its pores.
  • the molecular sieve-propylene oxide composition is quite effective in preventing or reducing the spoilage of various foodstuffs.
  • pumpkin meat in Bag No. 2 showed some softening and the presence of a considerable amount of liquid, but the fungus growth was not as extensive as in Bag No. l.
  • the pumpkin meat in Bag No. 3 was in good condition.
  • Example 4 Sliced fresh tomatoes were placed in two glass jars. In one of the jars was placed one tablet of a 13X molecular sieve saturated with about 20% by weight of propylene oxide. The tablet was A" in diameter and A" thick. Both jars were then sealed.
  • Example 5 The same procedure was then followed with sliced bologna.
  • Example 6 The procedure was then followed with pieces of cheese cake.
  • a slice of bread and two drops of water were placed in a polyethylene bag and the bag was folded closed.
  • a second slice ofbread, two drops of water and a tube of polyethylene containing cc. of propylene oxide were then placed in a second polyethylene bag which was likewise folded closed.
  • Example 8 p A slice of bread inoculated with a penicillin'fungus was placed in a first polyethylene bag and the bag was folded closed. A second slice of bread inoculated with the same amount and type of penicillin fungus as the first slice was placed in a second polyethylene bag with a polyethylene tube containing 12 cc. of propylene oxide. The bag was then folded closed.
  • the container preferably is polyethylene or other plastic which is pervious to the alkylene oxide vapors and which enables the vapors to dififuse through the wall of the tube into the atmosphere surrounding the food 21.
  • Tube 22 may be dropped into the container with the food or may be adhesively attached to the bottom of container 24 or to its side walls or may be placed in a pocket, clamp or recess in a wall of the container or in the closure.
  • the plastic used to form the tube may be of a Water soluble or disintegrable nature and may be edible as well, so that if the food -placed in the container contains substantial amounts of water, the tube will disintegrate after release of the propylene oxide and will leave no undesirable residue.
  • the third major embodiment of the present invention generally comprises dissolving or dispersing ethylene oxide and/or propylene oxide in a fixative which gradually releases propylene oxide vapors to the atmosphere.
  • the fixative is preferably a film-forming substance which can be used to coat or impregnate packaging materials. If at least part of an interior wall of a package made from such material carries such a coating, propylene oxide vapors will gradually be released to v the atmosphere within the package.
  • a specific example of material prepared in accordance with this invention may comprise a conventional paper-foil laminate of the type widely used for packaging foods.
  • the laminate comprises a layer of paper 31 adhesively bonded to a foil of aluminum 32 or other impermeable material.
  • the other surface of the paper is coated with a film 33 of a fixative containing propylene oxide.
  • the film 33 may, for example, comprise -a concentrated solution of ethylene oxide and/ or propylene oxide in a polyethylene glycol polymer having a molecular weight of about 200.
  • the filmforming fixative solution containing ethylene oxide and/ or propylene oxide may be applied as an interlayer between an impermeable foil and a vapor permeable layer.
  • the laminated sheet material shown in cross-section comprises a vapor permeable layer 41, such as polyethylene, cellulose acetate or the like, a vapor impermeable layer 43, such as aluminum foil or heavy waxed paper, and an interlayer 42 which is a film of fixative containing ethylene or propylene oxide.
  • a vapor permeable layer 41 such as polyethylene, cellulose acetate or the like
  • a vapor impermeable layer 43 such as aluminum foil or heavy waxed paper
  • an interlayer 42 which is a film of fixative containing ethylene or propylene oxide.
  • materials of the type shown in FIGS. 3 and 4 may be used to form a package 51 for foods 52, such as sliced meats, cheeses, or the like by wrapping the material around the article to be packaged and crimp sealing as at 53.
  • the material is employed so that the impermeable foil layer 32 or 43 is on the outside so that the propylene oxide vapors may difiuse and fill the inside of the package 51.
  • any rigid or flexible packaging or wrapping material whether of paper, cardboard, wood, plastic, or metal, or of either single ply or laminated construction, may be coated over part or all of one or both surfaces so that in packages or containers formed from the material, the ethylene oxide or propylene oxide sterilizing agent in the fixative is released within the container.
  • a method for the preservation of perishable material which comprises placing in a container which is impermeable to air animal or vegetable matter subject to spoilage by bacteria or molds and a sterilizing composition comprising a crystalline porous metal aluminosilic-ate and an alkylene oxide selected from the group consisting of ethylene oxide and propylene oxide absorbed within the pores of said aluminosilicate, closing said container using an airtight sealing means and maintaining said matter in a sterilizing atmosphere of said alkylene oxide vaporsfor an extended period of time by the slow and controlled release of'said vapors from said sterilizing composition into the atmosphere surrounding the matter to be protected in response to changes in relative humidity within said container.
  • a method in accordance with claim l wherein said sterilizing composition is segregated from said matter subor animal consumption and said sterilizing composition is propylene oxide absorbed in said aluminosilicate.
  • a method for the preservation of perishable material which comprises placing in a glass container animal or vegetable foodstufis for human consumption which are subject to spoilage by bacteria or molds and a porous crystalline aluminosilicate 13X molecular sieve having propylene oxide absorbed within its pores in an amount of about 20% by weight of said sieve, sealing said glass container using an airtight sealing means and maintaining said foodstuffs in a sterilizing atmosphere of said propylene oxide vapors for an extended period of time by the slow and controlled release of said vapors from said propylene oxide-containing molecular sieve int-o the atmosphere sur- 15 rounding the foodstufis to be protected in response to changes in relative humidity within said container.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Mechanical Engineering (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Packages (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
US337039A 1964-01-10 1964-01-10 Method of preserving perishable material Expired - Lifetime US3346398A (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
US337039A US3346398A (en) 1964-01-10 1964-01-10 Method of preserving perishable material
SE14389/64A SE321846B (US20030204162A1-20031030-M00001.png) 1964-01-10 1964-11-27
IT26166/64A IT950503B (it) 1964-01-10 1964-12-07 Metodo e composizione per conser vare prodotti organici deperibi li
ES0307015A ES307015A1 (es) 1964-01-10 1964-12-11 Un metodo para preservar o conservar sustancias de origen animal o vegetal que estan sujetas a los efectos de la descomposicion.
DE19641492598 DE1492598A1 (de) 1964-01-10 1964-12-11 Verfahren und Mittel zum Konservieren von leichtverderblichen tierischen und pflanzlichen Stoffen
AT1059564A AT266567B (de) 1964-01-10 1964-12-15 Verfahren zum Konservieren von tierischen und pflanzlichen Produkten
CH1619564A CH458903A (de) 1964-01-10 1964-12-15 Verfahren zum Konservieren von leicht verderblichen tierischen und pflanzlichen Stoffen
GB51618/64A GB1035720A (en) 1964-01-10 1964-12-18 Preservation of perishable materials
FR529A FR1458943A (fr) 1964-01-10 1964-12-31 Procédé de préservation de matières périssables et composition pour sa mise en oeuvre
BE657875D BE657875A (US20030204162A1-20031030-M00001.png) 1964-01-10 1965-01-04
NL6500073A NL6500073A (US20030204162A1-20031030-M00001.png) 1964-01-10 1965-01-06
DK12465AA DK126295B (da) 1964-01-10 1965-01-11 Fremgangsmåde til konservering af letfordærveligt animalsk eller vegetabilsk materiale.
BE691324D BE691324A (US20030204162A1-20031030-M00001.png) 1964-01-10 1966-12-16
MY196813A MY6800013A (en) 1964-01-10 1968-12-31 Preservation of perishale materials

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US337039A US3346398A (en) 1964-01-10 1964-01-10 Method of preserving perishable material

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US3346398A true US3346398A (en) 1967-10-10

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US (1) US3346398A (US20030204162A1-20031030-M00001.png)
AT (1) AT266567B (US20030204162A1-20031030-M00001.png)
BE (1) BE657875A (US20030204162A1-20031030-M00001.png)
CH (1) CH458903A (US20030204162A1-20031030-M00001.png)
DE (1) DE1492598A1 (US20030204162A1-20031030-M00001.png)
DK (1) DK126295B (US20030204162A1-20031030-M00001.png)
ES (1) ES307015A1 (US20030204162A1-20031030-M00001.png)
FR (1) FR1458943A (US20030204162A1-20031030-M00001.png)
GB (1) GB1035720A (US20030204162A1-20031030-M00001.png)
IT (1) IT950503B (US20030204162A1-20031030-M00001.png)
MY (1) MY6800013A (US20030204162A1-20031030-M00001.png)
NL (1) NL6500073A (US20030204162A1-20031030-M00001.png)
SE (1) SE321846B (US20030204162A1-20031030-M00001.png)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3476506A (en) * 1965-04-14 1969-11-04 Andersen Prod H W Sterilization apparatus
US3533806A (en) * 1967-09-26 1970-10-13 Thomas H Papworth Grain preservative method
US3559562A (en) * 1969-06-06 1971-02-02 Boise Cascade Corp Sulfur dioxide-releasing device
US3630665A (en) * 1966-06-30 1971-12-28 Andersen Prod H W Method of sterilization
US4550026A (en) * 1983-02-15 1985-10-29 Yosuke Akiba Method for preserving food using a preservative gas atmosphere
US4664922A (en) * 1983-05-18 1987-05-12 Leon Jean G Package for preserving food by generating a modified gas atmosphere
US4897273A (en) * 1986-08-08 1990-01-30 Mitsubishi Gas Chemical Co., Inc. Package with freshness keeping agent sack
WO1996010905A1 (en) * 1994-10-06 1996-04-18 Keith Charles Tipler Substance releasing materials
US5688545A (en) * 1996-03-04 1997-11-18 Kraft Jacobs Suchard Limited Coffee package with enhanced aroma impact
US5955004A (en) * 1996-03-22 1999-09-21 Moreno; Alfonso De Sande Composition of a product to preserve perishable foodstuffs
US20030056469A1 (en) * 2001-09-27 2003-03-27 Robert Armbruster Bale enveloping material containing a preservative
US20040018278A1 (en) * 2002-07-25 2004-01-29 Popplewell Lewis Michael Packaging containing fragrance
US20040018293A1 (en) * 2002-07-25 2004-01-29 Popplewell Lewis Michael Packaging containing fragrance
US20070059414A1 (en) * 2005-09-13 2007-03-15 Novak John S Method and Process of Using Controlled Gas Environments to Inhibit Microbial Growth
US20100044296A1 (en) * 2005-11-28 2010-02-25 G3 Enterprises Highly Selective Molecular Confinement for the Prevention and Removal of Taint in Foods and Beverages
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JPS5470457A (en) * 1977-11-07 1979-06-06 Takeda Chemical Industries Ltd Preservation of fresheness of fruit and vegetables
SE438425B (sv) * 1977-11-21 1985-04-22 Toppan Printing Co Ltd Ferskhetsbevarande medel for gronsaker och frukter, bestaende av en partikelformig komposition innehallande minst tva adsorbenter
JPS56142167A (en) * 1980-04-04 1981-11-06 Freunt Ind Co Ltd Tool for preserving food
NZ213989A (en) * 1984-10-30 1988-07-28 Seiwa Tech Lab Preserving biodegradable products using hinokitiol(2-hydroxy-4-(1-methylethyl)-2,4,6-cycloheptatrien-1-one) and packaging materials therefor
US4802574A (en) * 1987-12-01 1989-02-07 Yosuke Akiba Absorbent for a gas preservative atomosphere
GB2216769A (en) * 1988-03-31 1989-10-18 Takashi Sawada Method and container for packaging and preserving fresh fruit

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US3476506A (en) * 1965-04-14 1969-11-04 Andersen Prod H W Sterilization apparatus
US3630665A (en) * 1966-06-30 1971-12-28 Andersen Prod H W Method of sterilization
US3533806A (en) * 1967-09-26 1970-10-13 Thomas H Papworth Grain preservative method
US3559562A (en) * 1969-06-06 1971-02-02 Boise Cascade Corp Sulfur dioxide-releasing device
US4550026A (en) * 1983-02-15 1985-10-29 Yosuke Akiba Method for preserving food using a preservative gas atmosphere
US4664922A (en) * 1983-05-18 1987-05-12 Leon Jean G Package for preserving food by generating a modified gas atmosphere
US4897273A (en) * 1986-08-08 1990-01-30 Mitsubishi Gas Chemical Co., Inc. Package with freshness keeping agent sack
US6429156B1 (en) * 1994-10-06 2002-08-06 Keith Charles Tipler Substance releasing materials
WO1996010905A1 (en) * 1994-10-06 1996-04-18 Keith Charles Tipler Substance releasing materials
US5688545A (en) * 1996-03-04 1997-11-18 Kraft Jacobs Suchard Limited Coffee package with enhanced aroma impact
US5955004A (en) * 1996-03-22 1999-09-21 Moreno; Alfonso De Sande Composition of a product to preserve perishable foodstuffs
US20030056469A1 (en) * 2001-09-27 2003-03-27 Robert Armbruster Bale enveloping material containing a preservative
US20040018278A1 (en) * 2002-07-25 2004-01-29 Popplewell Lewis Michael Packaging containing fragrance
US20040018293A1 (en) * 2002-07-25 2004-01-29 Popplewell Lewis Michael Packaging containing fragrance
US20070059414A1 (en) * 2005-09-13 2007-03-15 Novak John S Method and Process of Using Controlled Gas Environments to Inhibit Microbial Growth
US20100044296A1 (en) * 2005-11-28 2010-02-25 G3 Enterprises Highly Selective Molecular Confinement for the Prevention and Removal of Taint in Foods and Beverages
US8057671B2 (en) * 2005-11-28 2011-11-15 G3 Enterprises Closure device capable of removing TCA in a beverage container
WO2018014022A1 (en) * 2016-07-15 2018-01-18 University Of Florida Research Foundation, Incorporated Permeation device for beneficial supplementation to gaseous atmospheres in enclosed volumes
US20190246670A1 (en) * 2016-07-15 2019-08-15 University Of Florida Research Foundation, Inc. Permeation device for beneficial supplementation to gaseous atmospheres in enclosed volumes

Also Published As

Publication number Publication date
ES307015A1 (es) 1965-05-16
CH458903A (de) 1968-06-30
DK126295B (da) 1973-07-02
MY6800013A (en) 1968-12-31
BE657875A (US20030204162A1-20031030-M00001.png) 1965-07-05
NL6500073A (US20030204162A1-20031030-M00001.png) 1965-07-12
SE321846B (US20030204162A1-20031030-M00001.png) 1970-03-16
IT950503B (it) 1973-06-20
AT266567B (de) 1968-11-25
GB1035720A (en) 1966-07-13
DE1492598A1 (de) 1969-08-07
FR1458943A (fr) 1966-11-10

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