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)
• Packages (AREA)
• Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
• Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
• Manufacture Of Macromolecular Shaped Articles (AREA)
• Compositions Of Macromolecular Compounds (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=24474488

Family Applications (1)

Country Status (5)

Family Cites Families (10)

• 2001
  • 2001-07-02 WO PCT/GB2001/002986 patent/WO2002005664A2/en not_active Application Discontinuation
  • 2001-07-02 MX MXPA03000529A patent/MXPA03000529A/es unknown
  • 2001-07-02 AU AU2001267727A patent/AU2001267727A1/en not_active Abandoned
  • 2001-07-02 EP EP01945512A patent/EP1301400A2/de not_active Withdrawn
  • 2001-07-02 CA CA002416151A patent/CA2416151A1/en not_active Abandoned

Non-Patent Citations (1)

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