GB2280371A - Surface sterilisation by laser treatment - Google Patents

Surface sterilisation by laser treatment

Info

Publication number
GB2280371A
GB2280371A GB9420400A GB9420400A GB2280371A GB 2280371 A GB2280371 A GB 2280371A GB 9420400 A GB9420400 A GB 9420400A GB 9420400 A GB9420400 A GB 9420400A GB 2280371 A GB2280371 A GB 2280371A
Authority
GB
United Kingdom
Prior art keywords
substrate
laser radiation
laser treatment
substrates
treating
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.)
Granted
Application number
GB9420400A
Other versions
GB9420400D0 (en
GB2280371B (en
Inventor
Michael Francis Foley
Robert Marc Clement
Neville Richard Ledger
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.)
Minister of Agriculture Fisheries and Food UK
Original Assignee
Minister of Agriculture Fisheries and Food UK
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 Minister of Agriculture Fisheries and Food UK filed Critical Minister of Agriculture Fisheries and Food UK
Priority claimed from PCT/GB1993/000872 external-priority patent/WO1993021787A1/en
Publication of GB9420400D0 publication Critical patent/GB9420400D0/en
Publication of GB2280371A publication Critical patent/GB2280371A/en
Application granted granted Critical
Publication of GB2280371B publication Critical patent/GB2280371B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • A23L3/26—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating
    • 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
    • A23L3/005—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating using irradiation or electric treatment
    • 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
    • A23L3/005—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating using irradiation or electric treatment
    • A23L3/0055—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating using irradiation or electric treatment with infrared rays

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Nutrition Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Laser Surgery Devices (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
  • Laser Beam Processing (AREA)

Abstract

The present invention relates to a method of treating substrates for the purpose of reducing the population of contaminant organisms associated with them; particularly to treatment of foodstuffs, propagative materials and items intended for use in veterinary and medical applications. The method directs laser radiation at the substrate whereby the type and amount of laser radiation are selected such as to render organisms associated with the substrate inviable while leaving the desired properties of the substrate itself substantially unchanged. Apparatus suitable for treating a variety of substrates are disclosed, with a source of laser radiation (9, 28) and means (26, 27, 29) for handling the substrate (24). <IMAGE>
GB9420400A 1992-04-27 1993-04-27 Surface sterilisation by laser treatment Expired - Fee Related GB2280371B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB929209103A GB9209103D0 (en) 1992-04-27 1992-04-27 Laser treatment of plant material
PCT/GB1993/000872 WO1993021787A1 (en) 1992-04-27 1993-04-27 Surface sterilisation by laser treatment

Publications (3)

Publication Number Publication Date
GB9420400D0 GB9420400D0 (en) 1994-11-30
GB2280371A true GB2280371A (en) 1995-02-01
GB2280371B GB2280371B (en) 1996-04-24

Family

ID=10714641

Family Applications (3)

Application Number Title Priority Date Filing Date
GB929209103A Pending GB9209103D0 (en) 1992-04-27 1992-04-27 Laser treatment of plant material
GB939303841A Pending GB9303841D0 (en) 1992-04-27 1993-02-25 Laser treatment of food material
GB9420400A Expired - Fee Related GB2280371B (en) 1992-04-27 1993-04-27 Surface sterilisation by laser treatment

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB929209103A Pending GB9209103D0 (en) 1992-04-27 1992-04-27 Laser treatment of plant material
GB939303841A Pending GB9303841D0 (en) 1992-04-27 1993-02-25 Laser treatment of food material

Country Status (17)

Country Link
EP (1) EP0637918A1 (en)
JP (1) JPH07506744A (en)
KR (1) KR950701193A (en)
CN (1) CN1079626A (en)
AU (1) AU669013B2 (en)
BG (1) BG61377B1 (en)
BR (1) BR9306293A (en)
CA (1) CA2118516A1 (en)
CZ (1) CZ262294A3 (en)
FI (1) FI945035A (en)
GB (3) GB9209103D0 (en)
HU (1) HUT71647A (en)
IL (1) IL105522A0 (en)
NZ (1) NZ252710A (en)
RU (1) RU94045934A (en)
SK (1) SK128294A3 (en)
ZA (1) ZA932956B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6013070A (en) * 1995-06-26 2000-01-11 Oingdao Tongda Technology Developing (Group) Co., Ltd. Apparatus using laser pump source for sterilization
CN113057278A (en) * 2021-03-29 2021-07-02 苏州光线跃动工业智能科技有限公司 Laser sterilization equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2195408A1 (en) * 1972-08-11 1974-03-08 Dufour Adrien Thermal treatment in depth of food prods. - using laser beams on finished prods. to destroy bacteriological activity
US3955921A (en) * 1972-09-19 1976-05-11 Eli Lilly And Company Method of killing microorganisms in the inside of a container utilizing a laser beam induced plasma
FR2621529A1 (en) * 1987-10-09 1989-04-14 Bongrain Sa Method for thermal treatment of a food product, in particular a cheese or pork butchery food product; method for marking such a food product, marking apparatus for implementing the method; food product thus treated or marked
WO1989010069A1 (en) * 1983-11-23 1989-11-02 Foodco Corporation Methods for preservation of foodstuffs
DD291471A5 (en) * 1989-12-21 1991-07-04 Janz,Immo,De METHOD AND DEVICE FOR OPENING AND EMPTYING EGGS

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2195408A1 (en) * 1972-08-11 1974-03-08 Dufour Adrien Thermal treatment in depth of food prods. - using laser beams on finished prods. to destroy bacteriological activity
US3955921A (en) * 1972-09-19 1976-05-11 Eli Lilly And Company Method of killing microorganisms in the inside of a container utilizing a laser beam induced plasma
WO1989010069A1 (en) * 1983-11-23 1989-11-02 Foodco Corporation Methods for preservation of foodstuffs
FR2621529A1 (en) * 1987-10-09 1989-04-14 Bongrain Sa Method for thermal treatment of a food product, in particular a cheese or pork butchery food product; method for marking such a food product, marking apparatus for implementing the method; food product thus treated or marked
DD291471A5 (en) * 1989-12-21 1991-07-04 Janz,Immo,De METHOD AND DEVICE FOR OPENING AND EMPTYING EGGS

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WPI AN 91-347078 & DD 291471A *

Also Published As

Publication number Publication date
CA2118516A1 (en) 1993-11-11
KR950701193A (en) 1995-03-23
EP0637918A1 (en) 1995-02-15
RU94045934A (en) 1996-10-10
HU9403018D0 (en) 1994-12-28
IL105522A0 (en) 1993-08-18
SK128294A3 (en) 1995-04-12
BG99133A (en) 1995-05-31
JPH07506744A (en) 1995-07-27
FI945035A0 (en) 1994-10-26
CN1079626A (en) 1993-12-22
CZ262294A3 (en) 1995-05-17
GB9303841D0 (en) 1993-04-14
GB9420400D0 (en) 1994-11-30
GB2280371B (en) 1996-04-24
ZA932956B (en) 1994-08-11
GB9209103D0 (en) 1992-06-10
NZ252710A (en) 1996-10-28
AU669013B2 (en) 1996-05-23
FI945035A (en) 1994-10-26
HUT71647A (en) 1996-01-29
BG61377B1 (en) 1997-07-31
BR9306293A (en) 1998-06-30
AU5155293A (en) 1993-11-29

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee