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EP1301400A2 - Logement alimentaire tubulaire humidifie presente dans un emballage irrradie - Google Patents

Logement alimentaire tubulaire humidifie presente dans un emballage irrradie

Info

Publication number
EP1301400A2
EP1301400A2 EP01945512A EP01945512A EP1301400A2 EP 1301400 A2 EP1301400 A2 EP 1301400A2 EP 01945512 A EP01945512 A EP 01945512A EP 01945512 A EP01945512 A EP 01945512A EP 1301400 A2 EP1301400 A2 EP 1301400A2
Authority
EP
European Patent Office
Prior art keywords
package
cellulose
mold
radiation
growth
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.)
Withdrawn
Application number
EP01945512A
Other languages
German (de)
English (en)
Inventor
Mark D. Reeves
Michael L. Dunn
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.)
Devro Ltd
Teepak Investments Inc
Original Assignee
Devro Ltd
Teepak Investments Inc
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
Application filed by Devro Ltd, Teepak Investments Inc filed Critical Devro Ltd
Publication of EP1301400A2 publication Critical patent/EP1301400A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • A61L2/081—Gamma radiation
    • A—HUMAN NECESSITIES
    • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22C—PROCESSING MEAT, POULTRY, OR FISH
    • A22C13/00—Sausage casings
    • A22C13/0013—Chemical composition of synthetic sausage casings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • A61L2/082—X-rays

Definitions

  • This invention relates to packages for food casing in the form of "strands" or
  • Food casing strands are shirred tubular film food casing. "Shirred” means
  • Reel stock is tubular food casing that is flattened and wound upon a reel.
  • Such food casings are packaged for storage and shipment to food processors,
  • Such packages have included rigid cartons as well as net and film wrappings.
  • Film wrappings have had certain advantages, e.g. they are light weight and
  • Food casings are often moisturized before shipment to a food packer
  • premoisturized it is considered “ready to stuff and are sometimes referred to as "premoisturized”.
  • Cellulose film is intended to include any film product that is primarily
  • cellulose that is either regenerated from a cellulose derivative, such as xanthate
  • Cellulose film is intended to include
  • cellulose fiber in the form of
  • Fiber reinforced cellulose tubular food casing is referred to as
  • moisturized cellulose presents an environment for growth of
  • antimycotics e.g. propylene glycol, propyl paracept or
  • alkyl esters of p-hydroxybenzoic acid could be used to reduce mold growth, see e.g.
  • antimycotics do not necessarily prevent the growth of non-mold
  • microorganisms such as bacteria, that may be less visible than mold.
  • shipment to a sterilization facility is that microorganisms may grow in transit.
  • tubular cellulose film can be
  • cellulose food casing is reduced by less than 12 percent at an exposure as high as 20
  • cellulose film food casing can be accomplished at exposures of less than 10 kilograys
  • the package has been irradiated with sufficient radiation to
  • the amount of radiation is usually from about 1 to about 20 kilograys and
  • the amount of radiation is sufficient to
  • pressure due to radiation exposure is preferably less than 4 percent.
  • Irradiated means exposed to penetrating high energy radiation, e.g. gamma
  • the amount of radiation used is sufficient radiation to prevent growth
  • microorganisms within the package for at least four weeks and preferably at least
  • radiation is used to reduce burst pressure of the casing by more than about 12 percent.
  • insufficient radiation is used to reduce burst pressure by more than 4 percent.
  • the irradiation used for sterilization is usually from about 1 to about 20
  • kilograys and preferably from about 2 to about 10 kilograys.
  • Package means one or more tubular food casings completely and tightly
  • the barrier preferably
  • the film comprises a polymer film.
  • the film may be made of one or more laminated or
  • At least one of the layers is preferably a high density moisture
  • barrier e.g. polyvinylidene chloride or nylon or an ultra high density polyolefin, e.g. a
  • the "tubular food casing” comprises a cellulose film matrix and from about 9
  • the cellulose film may be unreinforced or
  • films are usually either made by extrusion of a viscose into the shape of a tubular film
  • the food casing may, for example, be a
  • shirred fibrous food casing comprising a tubular film wherein the film comprises a
  • the viscose is a solution of derivatized or non-derivatized cellulose. The most
  • xanthate viscose which is a solution of xanthanated cellulose in
  • non-derivatized cellulose in an aqueous solution of tertiary amine oxide could be used to form tubular food casing. In that case, after extrusion, cellulose is precipitated
  • the invention also includes a method for making a package containing a
  • tubular food casing strand comprising a cellulose matrix and from about 9 to about 40
  • the method comprises
  • the package with sufficient radiation to prevent growth of microorganisms within the
  • the radiation is usually from about 1 to about 20 kilograys and preferably from about
  • the dose target from 7 to 15 kilograys, but the minimum dose could be as low as 1
  • Shirred fibrous casing was irradiated with gamma rays in strand lengths of
  • the casing was deshirred in lengths of 24 inches and soaked for 30 minutes in tap water. After 30 minutes, the casing was loaded into a burst analyzer
  • Residual $tretch typically as the radiation level increased the residual stretch
  • Energy to Burst - generally the values decreased as compared to the control.
  • Fibrous casing was divided into seven groups of four approximately 12"
  • end (2" from end), end-center (4" from end) and
  • the mold composite culture was injected under the shrink-wrap onto the
  • shrink-wrap After inoculation, one group served as a positive control to determine
  • a one-log reduction is the same as a 90% reduction, for example from

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Food Science & Technology (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Packages (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

L'invention concerne un emballage irradié comportant une protection imperméable aux bactéries et aux moisissures prévue pour recevoir un logement alimentaire tubulaire. Ce logement alimentaire se compose d'une matrice de film en cellulose et d'eau dans une proportion comprise entre 9 et 40 % par poids, environ. Cet emballage a été irradié par un rayonnement suffisant pour empêcher la croissance de micro-organismes à l'intérieur de l'emballage pendant au moins quatre semaines et un rayonnement insuffisant pour réduire la pression d'éclatement du logement de plus de 12 % environ. Cette dose de rayonnement est généralement comprise entre 1 et 20 kilograys environ et de préférence entre 5 et 10 kilograys, environ. Ladite dose de rayonnement suffit à réduire le nombre de micro-organismes au sein de l'emballage de plus de 99 % et est généralement suffisante pour réduire le nombre de micro-organismes de plus de 99.9 %. De plus, cette irradiation est souvent à même de réduire le nombre de micro-organismes de 99.99 %. La réduction de la pression d'éclatement due à l'exposition aux rayonnements sera inférieure à 4 % de préférence. La croissance de micro-organismes, en particulier des moisissures, est empêchée à l'intérieur de l'emballage pendant au moins quatre heures, de préférence au moins six et, de préférence, pendant douze semaines, au moins. Dans le meilleur des cas, la croissance de micro-organismes à l'intérieur de l'emballage sera définitivement empêchée.
EP01945512A 2000-07-17 2001-07-02 Logement alimentaire tubulaire humidifie presente dans un emballage irrradie Withdrawn EP1301400A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US61765700A 2000-07-17 2000-07-17
US617657 2000-07-17
PCT/GB2001/002986 WO2002005664A2 (fr) 2000-07-17 2001-07-02 Logement alimentaire tubulaire humidifie presente dans un emballage irrradie

Publications (1)

Publication Number Publication Date
EP1301400A2 true EP1301400A2 (fr) 2003-04-16

Family

ID=24474488

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01945512A Withdrawn EP1301400A2 (fr) 2000-07-17 2001-07-02 Logement alimentaire tubulaire humidifie presente dans un emballage irrradie

Country Status (5)

Country Link
EP (1) EP1301400A2 (fr)
AU (1) AU2001267727A1 (fr)
CA (1) CA2416151A1 (fr)
MX (1) MXPA03000529A (fr)
WO (1) WO2002005664A2 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2807549A (en) * 1952-12-20 1957-09-24 Electronized Chem Corp Method of producing a sterile meat package
US2937279A (en) * 1957-10-25 1960-05-17 Ethicon Inc Sterilization indicator
FR2319541A1 (fr) * 1975-07-31 1977-02-25 Charbonnages Ste Chimique Procede de fabrication d'emballages a resistance elevee aux graisses, aux solvants et a la temperature
US4867204A (en) * 1976-05-13 1989-09-19 Viskase Corporation Moisturized tubular cellulosic food casing and process for preparing
DE3034169A1 (de) * 1980-09-11 1982-04-15 Rudolf 6670 St Ingbert Marx Wasseradsorbierende einlage fuer lebensmittelpackungen
US4664861A (en) * 1985-02-04 1987-05-12 Teepak, Inc. Method for making preserved, high moisture, ready-to-stuff food casings
DE3615800A1 (de) * 1986-05-10 1987-11-12 Rudolf Marx Verwendung einer packung, die eine fluessigkeitsaufnehmende fuellung aufweist
US5107089A (en) * 1989-08-03 1992-04-21 E. I. Du Pont De Nemours And Company Non-melting microwave susceptor films
EP0714419A4 (fr) * 1993-08-10 1996-11-13 Planet Polymer Tech Inc Plastique biodegradable et compostable et son procede d'obtention
GB9720213D0 (en) * 1997-09-23 1997-11-26 Kelheim Faserwerk Gmbh Manufacture of viscose and articles therefrom

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0205664A3 *

Also Published As

Publication number Publication date
AU2001267727A1 (en) 2002-01-30
WO2002005664A3 (fr) 2002-05-30
CA2416151A1 (fr) 2002-01-24
MXPA03000529A (es) 2004-09-10
WO2002005664A2 (fr) 2002-01-24

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