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International Journal of Food Engineering

Editor-in-Chief: Chen, Xiao Dong

IMPACT FACTOR increased in 2015: 0.712

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Efficacy in Microbial Sterilization of Pulsed Magnetic Field Treatment

Ma Haile1 / Zhongli Pan2 / Mengxiang Gao3 / Lin Luo4

1Jiangsu University & Henan University of Science & Technology

2University of California, Davis & United States Department of Agriculture

3Yangtze University

4Jiangsu University

Citation Information: International Journal of Food Engineering. Volume 4, Issue 4, ISSN (Online) 1556-3758, DOI: 10.2202/1556-3758.1177, July 2008

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Sterilization effects of the pulsed magnetic field with a maximum intensity of 11.37 Tesla were investigated on Escherichia coli AS 1.129, Staphylococcus aureus AS 1.89, Saccharomyces cerevisiae ATTC 7552 and Bacillus subtilis AS 1.921. The well-regulated fluctuations of sterilization effects with magnetic field intensity and pulse number were observed, and can be described by the "window effect" of magnetic fields and provide a better explanation of the inconsistent results of PMF sterilization in published literature. Sensibility of bacteria on the pulsed magnetic field significantly depends on a variety of microorganisms. Sterilization effects of a flowing sample were better than that of static samples.

Keywords: magnetic field; pulse; sterilization; window effect

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