Inactivation of microorganisms by pulsed high voltage application

Author

Matsumoto, Yoichi ; Shioji, Norio ; Satake, Tokuki ; Sakuma, Akihiro

Author_Institution

Mitsubishi Heavy Ind. Ltd., Hyogo, Japan

fYear

1991

fDate

Sept. 28 1991-Oct. 4 1991

Firstpage

652

Abstract

Effective destruction of living cells in liquid by high-voltage pulse application has been confirmed. The survivability of the cells, and the energy efficiency of the cell destruction for various kinds of cells have been measured using different electrode geometries. Using an electrode system of the converged electric field type, reliable energy efficient cell destruction can be realized even for a high conductivity liquid. It is shown that using an intense underwater arc discharge in the rod-rod electrode system, even B. sibtilis (spores), which could never be destroyed by electric field method, can easily be inactivated and P markedly decreased less than 5 cal/cm/sub 3/.<>

Keywords

bioelectric phenomena; cellular biophysics; electric fields; electrodes; pulsed power technology; HV; cell destruction; electric field; electrode; energy efficiency; high voltage; inactivation; living cells; microorganisms; pulsed power technology; survivability; underwater arc discharge; Arc discharges; Breakdown voltage; Chemical technology; Electrodes; Energy efficiency; Fungi; Microorganisms; Pulse measurements; Shipbuilding industry; Space vector pulse width modulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 1991., Conference Record of the 1991 IEEE

Conference_Location

Dearborn, MI, USA

Print_ISBN

0-7803-0453-5

Type

conf

DOI

10.1109/IAS.1991.178248

Filename

178248