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1. (WO1991007994) METHOD FOR PREVENTING BACTERIAL GROWTH IN A FOOD PROCESSING PLANT AND SUCH A PLANT FOR CARRYING OUT THE METHOD
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/007994 International Application No.: PCT/SE1990/000780
Publication Date: 13.06.1991 International Filing Date: 28.11.1990
Chapter 2 Demand Filed: 24.04.1991
IPC:
A23L 3/36 (2006.01) ,A61L 2/04 (2006.01) ,A61L 2/20 (2006.01) ,F25D 17/04 (2006.01) ,F25D 21/12 (2006.01)
A HUMAN NECESSITIES
23
FOODS OR FOODSTUFFS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
L
FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D91; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
3
Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
36
Freezing; Subsequent thawing; Cooling
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
L
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
2
Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
02
using physical phenomena
04
Heat
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
L
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
2
Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
16
using chemical substances
20
Gaseous substances, e.g. vapours
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25
REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
D
REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS
17
Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
04
for circulating gas, e.g. by natural convection
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25
REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
D
REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS
21
Defrosting; Preventing frosting; Removing condensed or defrost water
06
Removing frost
12
by hot-fluid circulating system separate from the refrigerant system
Applicants:
FRIGOSCANDIA FOOD PROCESS SYSTEMS AB [SE/SE]; Box 913 S-251 09 Helsingborg, SE (AllExceptUS)
ROTHSTEIN, Sven-Olle [SE/SE]; SE (UsOnly)
SOLMINGER, Jan [SE/SE]; SE (UsOnly)
Inventors:
ROTHSTEIN, Sven-Olle; SE
SOLMINGER, Jan; SE
Agent:
AWAPATENT AB; P.O. Box 5117 S-200 71 Malmö, SE
Priority Data:
8904041-429.11.1989SE
Title (EN) METHOD FOR PREVENTING BACTERIAL GROWTH IN A FOOD PROCESSING PLANT AND SUCH A PLANT FOR CARRYING OUT THE METHOD
(FR) PROCEDE EMPECHANT LA CROISSANCE BACTERIENNE DANS UNE INSTALLATION DE TRAITEMENT D'ALIMENTS ET INSTALLATION DE MISE EN ×UVRE DU PROCEDE
Abstract:
(EN) In a method for preventing bacterial growth in a refrigerating or freezing plant for food, the plant (1) comprising a substantially closed housing (2) and, arranged therein, means (3) for refrigerating food in this housing, and having an operating cycle which comprises a work period during which the refrigerating means (3) are active, and a rest period during which the refrigerating means (3) are inactive and the plant can be cleaned, the cleaning includes raising the temperature in the plant above a temperature requisite for killing bacteria. Furthermore, the air pressure in the plant is maintained higher than the ambient pressure, at least during the entire rest period, by supplying air free from bacteria. The plant (1) comprises means for raising the temperature therein during a rest period above a temperature requisite for killing bacteria, and means (7, 8) for supplying the air free from bacteria.
(FR) Selon un procédé empêchant la croissance bactérienne dans une installation de réfrigération ou de congélation d'aliments, l'installation (1) comprend un logement fermé (2) dans lequel sont agencés des moyens (3) de réfrigération d'aliments, et a un cycle de fonctionnement présentant une période de travail pendant laquelle les moyens de réfrigération (3) sont actifs, ainsi qu'une période de repos pendant laquelle lesdits moyens de réfrigération (3) sont inactifs et l'installation peut être nettoyée, le nettoyage consistant élever la température dans l'installation au-dessus d'une température requise pour tuer les bactéries. En outre, la pression d'air dans l'installation est maintenue supérieure à la pression ambiante, au moins pendant la totalité de la période de repos,, par acheminement d'air exempt de bactéries. L'installation (1) comprend des moyens permettant d'élever la température dans celle-ci pendant une période de repos, au-dessus d'une température requise pour tuer les bactéries, ainsi que des moyens (7, 8) acheminant l'air exempt de bactéries.
Designated States: AU, CA, JP, SU, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: Swedish (SV)
Also published as:
EP0502946ES2082186US5293753JP2000000003JPH05504680CA2069874
DE000069024974AU1991078970DK0502946