GB691851A - Improved method of treating products with supersonic energy to accelerate physical, chemical or biological alterations - Google Patents

Improved method of treating products with supersonic energy to accelerate physical, chemical or biological alterations

Info

Publication number
GB691851A
GB691851A GB6908/49A GB690849A GB691851A GB 691851 A GB691851 A GB 691851A GB 6908/49 A GB6908/49 A GB 6908/49A GB 690849 A GB690849 A GB 690849A GB 691851 A GB691851 A GB 691851A
Authority
GB
United Kingdom
Prior art keywords
pulses
supersonic
milk
energy
seconds
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.)
Expired
Application number
GB6908/49A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB691851A publication Critical patent/GB691851A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/10—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing sonic or ultrasonic vibrations

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)

Abstract

Solids, liquids or gases, particularly those containing cells, bacteria or virus are subjected to supersonic energy in pulses to accelerate physical, chemical or biological alterations, e.g. sterilization, the flow of supersonic energy applied being so powerful that if applied to the substance under treatment continuously, unwanted secondary effects caused by a rise in temperature would occur. Rectangular pulses are preferably employed. Examples relate to (1) the treatment of milk with supersonic osillations of 3000 kilocycles per second in pulses of 5 micro seconds, the pulse repetition frequency being 6000 cycles per second. The oscillating surface has an area of 10 sq. cm. and the milk is passed between this surface and a ground quartz plate 2 cms. away (2) meat is treated at 15 DEG C to destroy enterobacteriaceae for 80 seconds as in (1) above. Specification 356,783 is referred to.ALSO:Foodstuffs are sterilized by the application of supersonic energy in pulses, the flow of supersonic energy being so powerful that if applied to the substance under treatment continuously, unwanted secondary effects caused by a rise in temperature would occur. The pulses of energy are preferably rectangular. Examples relate to (1) the treatment of milk with supersonic oscillation of 3,000 kilocycles per second in pulses of 5 micro-seconds, the pulse repetition frequency being 6,000 cycles per second. The oscillating surface has an area of 10 square cms., and the milk is passed between this surface and a ground quartz plate 2 cms. away. (2) Meat is treated at 15 DEG C. for 80 seconds to destroy enterobacteriace as in (1) above. Specification 356,783, [Group III], is referred to.
GB6908/49A 1948-03-13 1949-03-14 Improved method of treating products with supersonic energy to accelerate physical, chemical or biological alterations Expired GB691851A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK691851X 1948-03-13

Publications (1)

Publication Number Publication Date
GB691851A true GB691851A (en) 1953-05-20

Family

ID=8152285

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6908/49A Expired GB691851A (en) 1948-03-13 1949-03-14 Improved method of treating products with supersonic energy to accelerate physical, chemical or biological alterations

Country Status (1)

Country Link
GB (1) GB691851A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0787526A2 (en) * 1996-02-02 1997-08-06 United Technologies Corporation Catalytic reaction rate enhancement at low temperatures

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0787526A2 (en) * 1996-02-02 1997-08-06 United Technologies Corporation Catalytic reaction rate enhancement at low temperatures
EP0787526A3 (en) * 1996-02-02 1997-11-19 United Technologies Corporation Catalytic reaction rate enhancement at low temperatures

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