Effect of electric and flow parameters on PEF treatment efficiency

On the modeling of electrochemical phenomena at the electrode-solution interface in a PEF treatment chamber: Methodological approach to describe the phenomenon of metal release

“…In all experiments, the inlet temperature of the samples was set at 25°C. The temperature measured at the chamber outlet was increasing linearly with the energy input of 0.18°C/(kJ/kg) up to final value, always lower than 43°C (Pataro et al, 2011), regardless the treatment medium and field strength applied in the range investigated (data not shown).…”

“…Most of the results found in the literature obtained utilizing continuous flow PEF system for microbial inactivation, refer to laminar flow conditions due to the limitations on the flow rate capacity of the pulsing forming network used (Pataro et al, 2011). Thus, the velocity field has been solved in laminar regime (Reynolds number lower than 2100).…”

“…Accuracy (A f ) and Bias (B f ) factors were used to assess the effectiveness of the predictive model set up (Pataro et al, 2011). Fig.…”

Inactivation kinetics of Salmonella spp. under thermal and emerging treatments: A review

“…The non-uniformity of the electric field during pulsed electric fields is a common phenomenon and a current research need as many authors mention (Alkhafaji & Farid, 2007;Gerlach et al, 2008;Huang & Wang, 2009;Jaeger, Meneses, Moritz, & Knorr, 2010;Lindgren, Aronsson, Galt, & Ohlsson, 2002;Pataro, Senatore, Donsì, & Ferrari, 2011;van den Bosch, 2007). This non-uniformity must be considered during mathematical modeling (Álvarez, Condón, & Raso, 2006) which can be estimated using finite element models or other numerical simulations and should be reported together with the inactivation kinetics (Fox, 2007;Rauh, 2009;Roodenburg et al, 2010;Saldaña et al, 2010).…”

Mass Transfer Enhancement by Means of Electroporation

“…Recently, the interest in electropermeabilization has considerably grown, as it offers the possibility to develop different non-thermal alternatives to the traditional processing methods of the food industry requiring the disintegration of cell membrane. For example, the complete damage of the microbial cell membrane induced by the application of intensive PEF process conditions has been intensively studied in the last twenty years as a new nonthermal method of food preservation (Barsotti and Cheftel, 1999;Mosqueda-Melgar et al, 2008;Pataro et al, 2011). More interestingly, it has been also reported by several research teams that the application of a pulsed electric fields pre-treatment of moderate intensity to biological tissue may considerably increase the mass and heat transfer rates between plant cells and the surroundings, making it suitable for enhancing the efficiency of the pressing, extraction, drying and diffusion processes of the food industry (Angersbach, 2000;Vorobiev et al, 2005;Vorobiev and Lebovka, 2006;Donsì et al, 2010b).…”