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United States Department of Agriculture

Agricultural Research Service

Research Project: NEW TECHNOLOGIES TO PROCESS VALUE-ADDED, HEALTHY FOODS FROM FRUITS AND VEGETABLES

Location: Healthy Processed Foods Research

Title: Efficacy in Microbial Sterilization of Pulsed Magnetic Field Treatment

Authors
item Ma, Haile - JIANGSU UNIV., CHINA
item PAN, ZHONGLI
item Gao, Mengxiang - JIANGSU UNIV., CHINA
item Luo, Lin - JIANGSU UNIV., CHINA

Submitted to: International Journal of Food Engineering
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: February 13, 2008
Publication Date: July 8, 2008
Citation: Ma, H., Pan, Z., Gao, M., Luo, L. 2008. Efficacy in Microbial Sterilization of Pulsed Magnetic Field Treatment. International Journal of Food Engineering. 4(4):1-14.

Interpretive Summary: the objective of this study was to investigate the effect of the Pulsed magnetic Fields (PMF) parameters on the sterilization of various bacterial under static and dynamic PMF treatments.

Technical Abstract: 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.

Last Modified: 9/10/2014