Effects of high electric field pulses on Lactobacillus brevis at elevated temperatures

Author

Jayaram, S. ; Castle, G.S.P. ; Margaritis, A.

Author_Institution

Fac. of Eng. Sci., Univ. of Western Ontario, London, Ont., Canada

fYear

1991

fDate

Sept. 28 1991-Oct. 4 1991

Firstpage

674

Abstract

The technique of electroporation has been successfully applied to caused a nonthermal lethal effect on the bacterial cells Lactobacillus brevis in a buffered phosphate solution. Tests were carried out at different temperatures (24 degrees C, 30 degrees C, 45 degrees C, and 60 degrees C) to determine if there is a synergistic effect of temperature and electric pulse treatment on the destruction of L. brevis cells. Experimental results indicate that the viability of L. brevis declines exponentially with treatment time and is electric field and temperature dependent.<>

Keywords

bioelectric phenomena; cellular biophysics; electric fields; pulsed power technology; 24 degC; 30 degC; 45 degC; 60 degC; Lactobacillus brevis; bacterial cells; cell inactivation; destruction; electric field pulses; electroporation; synergistic effect; Biomembranes; Cells (biology); Conductivity; Dielectric breakdown; Electric breakdown; Fungi; Microorganisms; Permeability; Temperature dependence; Testing;

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.1991.178309

Filename

178309