2007/04/20 by Nikolaï Lebovka, Nikolai Lebovka, Lebovka, Nikolai +3
Biochemistry, Genetics and Molecular Biology · Engineering · Physics and Astronomy · #Electrohydrodynamics and Fluid Dynamics #Magnetic and Electromagnetic Effects #Microbial Inactivation Methods #physics.bio-ph
paper · pdf · doi:10.48550/arxiv.0704.2750
12 pages, 10 figures
arxiv created 2007/04/20 · arxiv updated 2009/12/01
The nature of non-exponential kinetics in microbial cells inactivation by pulsed electric fields (PEF) is discussed. It was demonstrated that possible mechanism of non-exponential kinetics can be related to orientational disorder in suspension of microbial cells of anisotropic form. A numerical studies of spheroidal cell suspensions was carried out. The most pronounced deviations from the exponential kinetics were observed for disordered suspensions of prolate spheroids at small electric field strength E or at large aspect ratio a. For partially oriented suspensions, efficiency of inactivation enhances with increasing of order parameter and field strength. A possibility of the PEF-induced orientational ordering in microbial suspensions is discussed.