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Conductivity spectra of cellular systems in pulsed electric fields: Electro-compression disintegration and thermal instability effects

Paper ID Volume ID Publish Year Pages File Format Full-Text
19386 43062 2011 7 PDF Available
Title
Conductivity spectra of cellular systems in pulsed electric fields: Electro-compression disintegration and thermal instability effects
Abstract

A method based on electrophysiological properties is proposed for calculation of conductivity spectrum for cellular systems which may be used for studying disintegration of cellular materials in pulsed electric fields (PEFs). For modeling the cellular complex conductivity, an electrical element, called “bi-layer element”, is defined. Impedance networks are established by setting system parameters randomly. The conductivity–frequency curves, calculated by this method, behaved reasonably and a correlation for the system conductivity at high frequencies is proposed. The conductivity variation due to electro-compression and thermal instability is also investigated.

Research highlights▶ Increasing the average membrane factor raises the sample conductivity at low frequencies. ▶ High voltages are required for electroporation when the membrane factors are big. ▶ The temperature dependency of the electro-compression is strong for high fields.

Keywords
Conductivity spectrum; Cellular system; Membrane factor; Complex conductivity; Electro-compression; Thermal instability
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Conductivity spectra of cellular systems in pulsed electric fields: Electro-compression disintegration and thermal instability effects
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Publisher
Database: Elsevier - ScienceDirect
Journal: Food and Bioproducts Processing - Volume 89, Issue 4, October 2011, Pages 400–406
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us