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Food Science and Technology International
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Pulsed Ultraviolet Light

A. Demirci

Department of Agricultural and Biologial Engineering, The Pennsylvania State University, University Park, PA 16802, USA, demirci{at}psu.edu

L. Panico

Xenon Corporation, Wilmington, MA 01887, USA

Pulsed Ultraviolet (UV)-Light is an emerging processing technology, which has a potential to decontaminate food products. The light generated by pulsed UV lamps consists of a continuum broadband spectrum from deep UV to the infrared, especially rich in UV range below 400 nm, which is germicidal. In pulsed UV-light system, UV-light is pulsed several times per second and each pulse lasts between 100 ns and 2ms. The pulsed UV-light has a modest energy input which can yield high peak power dissipation. Many researchers have demonstrated the effectiveness of pulsed UV-light on microbial loads on food surfaces. In this paper, various applications of pulsed UV-light treatment of foods found in the literature as well as future research needs will be discussed.

Key Words: Decontamination • inactivation • food safety • pathogens • pulsed light

Food Science and Technology International, Vol. 14, No. 5, 443-446 (2008)
DOI: 10.1177/1082013208098816
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