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Applied and Environmental Microbiology, October 2005, p. 6410-6413, Vol. 71, No. 10
0099-2240/05/$08.00+0     doi:10.1128/AEM.71.10.6410-6413.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.

SHORT REPORT

Disinfection of Microorganisms by Use of Electrochemically Regenerated Periodate

Mina Okochi,1 Hiroshi Yokokawa,1 Tae-Kyu Lim,1 Tomoyuki Taguchi,1 Hiromichi Takahashi,1 Hiroko Yokouchi,1 Tatsuo Kaiho,2 Akira Sakuma,3 and Tadashi Matsunaga1*

Department of Biotechnology and Life Sciences, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan,1 Mitsui Chemical Inc., Togo, Mobara-city, Chiba 297-8666, Japan,2 Kanto Natural Gas Development Co., Ltd., Nihonbashi Muromachi Chuo-ku, Tokyo 103-0022, Japan3

Received 8 October 2004/ Accepted 13 May 2005

A new method for disinfection of microorganisms by electrochemically regenerated periodate was developed. Oxidation of iodate to periodate was observed at 1.25 V versus a silver/silver chloride electrode in a cyclic voltammogram of potassium iodate. When 1.25 V was applied in 1.0 mM potassium iodate, approximately 4-log inactivation of Escherichia coli was observed in 30 min.

* Corresponding author. Mailing address: Department of Biotechnology and Life Sciences, Tokyo University of Agriculture and Technology, 2-24-16, Naka-cho, Koganei, Tokyo 184-8588, Japan. Phone: 81-42-388-7020. Fax: 81-42-385-7713. E-mail: tmatsuna{at}cc.tuat.ac.jp.

Applied and Environmental Microbiology, October 2005, p. 6410-6413, Vol. 71, No. 10
0099-2240/05/$08.00+0     doi:10.1128/AEM.71.10.6410-6413.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.





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