Dual-porosity model of mass transport in electroporated biological tissue: Simulations and experimental work for model validation

Mahnič-Kalamiza, Samo; Miklavčič, Damijan; Vorobiev, Eugène

doi:10.1016/j.ifset.2014.09.011

Cited by 19 publications

(3 citation statements)

References 56 publications

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“…For this purpose, we turn to the mechanism of a pulsed electric fi eld impact on the structure of plant cells. It is known that pulsed electric fi eld treatment has a positive effect on mass transfer caused by the formation of a modifi ed bidispersed structure [14]. In [4], it was experimentally established that, when a cellular-structure plant material undergoes pulsed electric fi eld treatment, at the initial instant t = 0, an intracellular fl uid in the form of drops is exuded on the surface of the material in the zone of treatment.…”

Section: Optimization Problem Formulationmentioning

confidence: 99%

Numerical Modeling of the Process of Drying Biomaterials After Pulsed Electric Field Treatment Using a System of Temperature, Moisture, and Pressure Equations

Шорсткий

Косачев

Кошевой

2020

J Eng Phys Thermophy

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A new method is described to determine the kinetic coeffi cients for temperature, moisture, and pressure potentials based on experimental data of a curve for drying capillary-porous bodies. This method includes numerical modeling of the problem of calculating the potential of transfer of temperature, moisture, and pressure in the process of drying based on the procedure of using the fi nite element method in combination with the stepwise method of fi nite differences for a partial differential system, and an inverse problem formulation in the form of minimizing the residual function square from the obtained experimental curve of the moisture potential. Based on this method, the updated coeffi cients of kinetic potentials were found for many materials after pulsed electric fi eld treatment and dependence curves were restored for temperature and pressure potentials that were not observed in the experiment. The presented approach is quite useful for the study of the mechanism of a drying process with pulsed electric fi eld pretreatment, and for the explanation of the occurring effects, and the updated kinetic coeffi cients based on experimental data contribute to the substantiation of the processes occurring in the object of drying.

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Section: Optimization Problem Formulationmentioning

confidence: 99%

Numerical Modeling of the Process of Drying Biomaterials After Pulsed Electric Field Treatment Using a System of Temperature, Moisture, and Pressure Equations

Шорсткий

Косачев

Кошевой

2020

J Eng Phys Thermophy

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“…Electroporation is a pulsed electric field (PEF)–induced phenomenon of increased membrane permeabilization, which can be precisely controlled by the parameters of the electrical pulses (Tsong, 1991; Rems and Miklavčič, 2016). It is a predominantly nonthermal method, which already has broad application in the food industry and biotechnology for extraction of proteins, sterilization, and biomass processing (Mahnič-Kalamiza et al., 2014, 2015; Golberg et al., 2016). In previous pilot study, it was shown that electroporation when combined with nisin nanoparticles triggers sensitization of gram-negative bacteria (Novickij et al., 2016c).…”

Section: Introductionmentioning

confidence: 99%

Inactivation of Escherichia coli Using Nanosecond Electric Fields and Nisin Nanoparticles: A Kinetics Study

et al. 2018

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Nisin is a recognized bacteriocin widely used in food processing, however, being ineffective against gram-negative bacteria and in complex food systems. As a result, the research of methods that have cell wall–permeabilizing activity is required. In this study, electroporation to trigger sensitization of gram-negative bacteria to nisin-loaded pectin nanoparticles was used. As a model microorganism, bioluminescent strain of E. coli was introduced. Inactivation kinetics using nanosecond pulsed electric fields (PEFs) and nisin nanoparticles have been studied in a broad range (100–900 ns, 10–30 kV/cm) of pulse parameters. As a reference, the microsecond range protocols (100 μs × 8) have been applied. It was determined that the 20–30 kV/cm electric field with pulse duration ranging from 500 to 900 ns was sufficient to cause significant permeabilization of E. coli to trigger a synergistic response with the nisin treatment. The kinetics of the inactivation was studied with a time resolution of 2.5 min, which provided experimental evidence that the efficacy of nisin-based treatment can be effectively controlled in time using PEF. The results and the proposed methodology for rapid detection of bacteria inactivation rate based on bioluminescence may be useful in the development and optimization of protocols for PEF-based treatments.

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“…It can also improve the quality of the extracted juice (Camirand, Randall, Zaragosa, & Neuman, 1981;. Several recent studies have also shown the high potential of pulsed electric field (PEF) to induce non-thermal damage (electroporation) of cell membranes (Eshtiaghi & Knorr, 2002;Fincan & Dejmek, 2002;Knorr & Angersbach, 1998;Lebovka, Bazhal, & Vorobiev, 2001;López, Puértolas, Condón, & Raso, 2009;Mahnič-Kalamiza, Miklavčič, & Vorobiev, 2015;Maskooki & Eshtiaghi, 2012;Toepfl & Heinz, 2011;Vorobiev & Lebovka, 2008). It was observed that the electroporation enhances sucrose extraction from sugar beet slices by aqueous diffusion (El Belghiti & Vorobiev, 2004;Eshtiaghi & Knorr, 2002;Loginova, Vorobiev, Bals, & Lebovka, 2011;Maskooki & Eshtiaghi, 2012) and pressing Almohammed, Mhemdi, & Vorobiev, 2016;Bouzrara & Vorobiev, 2003;Jemai & Vorobiev, 2003;Mhemdi, Bals, Grimi, & Vorobiev, 2014;Mhemdi, Bals, & Vorobiev, 2016).…”

Section: Introductionmentioning

confidence: 99%

Several-staged alkaline pressing-soaking of electroporated sugar beet slices for minimization of sucrose loss

Almohammed

Mhemdi

Vorobiev

2016

Innovative Food Science & Emerging Technologies

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Dual-porosity model of mass transport in electroporated biological tissue: Simulations and experimental work for model validation

Cited by 19 publications

References 56 publications

Numerical Modeling of the Process of Drying Biomaterials After Pulsed Electric Field Treatment Using a System of Temperature, Moisture, and Pressure Equations

Numerical Modeling of the Process of Drying Biomaterials After Pulsed Electric Field Treatment Using a System of Temperature, Moisture, and Pressure Equations

Inactivation of Escherichia coli Using Nanosecond Electric Fields and Nisin Nanoparticles: A Kinetics Study

Several-staged alkaline pressing-soaking of electroporated sugar beet slices for minimization of sucrose loss

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