Food or edible material: processes – compositions – and products – Direct application of electrical or wave energy to food... – Treatment with ultraviolet or visible light
Patent
1992-10-30
1994-11-15
Yeung, George
Food or edible material: processes, compositions, and products
Direct application of electrical or wave energy to food...
Treatment with ultraviolet or visible light
426521, A23L 300
Patent
active
053646452
ABSTRACT:
Microorganisms, including not only bacteria related to hygiene, food spoilage and human pathogenesis but also fungi which are commonly found in fresh fruits and vegetables, can be reduced or eliminated for surface microbial disinfection of foods and for other purposes by exposing an area containing such microorganisms to a monochromatic beam of pulsed ultraviolet laser radiation of wavelength about 240-280 nm, or in particular about 240-260 nm, with pulse duration in the range of picoseconds to microseconds at 1-1900 mJ/cm.sup.2 for most situations. Laser energy irradiance should be controlled in the case of some foods because of the limited tolerance to such exposure.
REFERENCES:
patent: 3817703 (1974-06-01), Atwood
patent: 3926556 (1975-12-01), Boucher
patent: 3941670 (1976-03-01), Pratt, Jr.
patent: 3955921 (1976-05-01), Tensmeyer
patent: 4042325 (1977-08-01), Tensmeyer
patent: 4201916 (1980-05-01), Ellner
patent: 4529489 (1985-07-01), McDonald
patent: 4661264 (1987-04-01), Goudy
patent: 4871559 (1989-10-01), Dunn et al.
patent: 4880512 (1989-11-01), Cornelius et al.
patent: 5034235 (1991-07-01), Dunn et al.
patent: 5059431 (1991-10-01), Daeschel et al.
patent: 5089384 (1992-02-01), Hale
patent: 5120450 (1992-06-01), Stanley, Jr.
patent: 5144146 (1992-09-01), Wekhof
patent: 5235043 (1993-08-01), Collins et al.
Lagunas-Solar Manuel C.
Pyne Alvan W.
O'Banion John P.
The Regents of the University of California
Yeung George
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