1999/06/12 by N. I. Lebovka, Nikolaï Lebovka, Maksym Bazhal +5
Biochemistry, Genetics and Molecular Biology · Engineering · Materials Science · Physics and Astronomy · #Disordered Systems and Neural Networks (cond-mat.dis-nn) #FOS: Biological sciences #FOS: Physical sciences #Microbial Inactivation Methods #Microfluidic and Bio-sensing Technologies #Quantitative Biology (q-bio) #Statistical Mechanics (cond-mat.stat-mech) #Ultrasound and Cavitation Phenomena #cond-mat.dis-nn #cond-mat.stat-mech #q-bio
paper · pdf · doi:10.48550/arxiv.cond-mat/9906181
10 pages, 9 figures, RevTeX
arxiv created 1999/06/12 · openalex publication_date 1999/06/12 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We consider the simplified dielectric breakage model used for simulation of the kinetics of cellular material breakage under the pulsed electric field (PEF) treatment. The model is based on an effective media approximation, which includes equations with the same morphology parameters as in percolation theory. The probability of a whole cell breakage by the pulse with ti duration is estimated on the basis of electroporation theory. We account for the bridging effect resulting from the deviations of the local conductivity near the selected cell from the average effective media conductivity. The most important feature of the proposed model is the existence of the ``jamming'' behaviour occurring sometimes in experimental observations of the biological tissue breakage. The different transitions corresponding to the ``jamming'' steps are identified. The experimental results are obtained for thin apple slices treated with electric pulses at field strengths E=0.2-2.2 kV cm-1, pulse durations ti=10-100 μs, pulse repetition times t=10-100 ms and the number of pulses N=1-100000. The model gives results consistent in general with the experimental observations. We discuss the correlation between the degree of cellular material destruction, field strength, time of PEF treatment and power consumption.