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Inactivation of Enterobacter sakazakii inoculated on formulated infant foods by intense pulsed light treatment

Title
Inactivation of Enterobacter sakazakii inoculated on formulated infant foods by intense pulsed light treatment
Authors
Choi M.-S.Cheigh C.-I.Jeong E.-A.Shin J.-K.Park J.-Y.Song K.-B.Park J.-H.Kwon K.-S.Chung M.-S.
Ewha Authors
정명수최찬익
SCOPUS Author ID
정명수scopus
Issue Date
2009
Journal Title
Food Science and Biotechnology
ISSN
1226-7708JCR Link
Citation
vol. 18, no. 6, pp. 1537 - 1540
Indexed
SCIE; SCOPUS; KCI WOS scopus
Abstract
Enterobacter sakazakii is a representative microorganism whose presence in infant foods can cause serious disease. The purposes of this study were to determine the inactivation effects of intense pulsed light (IPL) on E. sakazakii and the commercial feasibility of this sterilization method. The inactivation of E. sakazakii increased with increasing electric power and treatment time. The cells were reduced by 5 log cycles for 4.6 and 1.8 msec of treatment at 10 and 15 kV of electric field strength, respectively. The sterilization effects on commercial infant foods were investigated at 15 kV. The cell population in an infant beverage, an infant meal, and an infant powdered milk product inoculated with E. sakazakii were inactivated exponentially as a function of time and reduced by 4.0, 2.5, and 1.5 log cycles for 9.4, 7.0, and 7.0 msec of treatment time, respectively. © The Korean Society of Food Science and Technology.
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엘텍공과대학 > 식품공학전공 > Journal papers
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