Sumner S S, Wallner-Pendleton E A, Froning G W, Stetson L V
Department of Food Science and Technology, University of Nebraska, Lincoln 68583-0919, USA.
J Food Prot. 1996 Mar;59(3):319-21. doi: 10.4315/0362-028x-59.3.319.
Ultraviolet radiation (UV) was effective in destroying Salmonella typhimurium on agar plates and poultry skin. Agar plates inoculated with varying numbers of colony-forming units (CFU) of S. typhimurium (1.2 x 10(2) to 1.7 x 10(9) were subjected to different doses of UV light to determine optimal killing. Poultry skin was also inoculated with varying CFU of S. typhimurium per 2 cm2 of skin and subjected to UV light. UV light treatment of inoculated agar plates revealed almost complete elimination (99.9%) of S. typhimurium at 2,000 microW x s x cm(-2). Bacterial reduction was less effective on the surface of poultry skin when a 80.5% reduction in S. typhimurium was obtained at 2,000 microW x s x cm(-2).
