TY - JOUR
T1 - A Pulsed Electric Field (PEF) bench static system to study bacteria inactivation
AU - Cortese, Pietro
AU - Dellacasa, Giuseppe
AU - Gemme, Roberto
AU - Bonetta, Sara
AU - Bonetta, Silvia
AU - Carraro, Elisabetta
AU - Motta, Francesca
AU - Paganoni, Marco
AU - Pizzichemi, Marco
N1 - Funding Information:
We would like to thank Silvano Gallian of the INFN section of Torino-Italy who took a great and irreplaceable part in designing and building the apparatus. We deeply acknowledge Dr. Cesare Ponti of the PONTI S.p.A. for providing us with the Samtech trigger generator TG-01. We are indebted to Dr. Peter Pearce and to the TERA foundation which took part in the early stage of the project. Discussions with Prof. Gio-vanna Ferrari and Ing. Gian Piero Pataro of the Salerno University - Italy have been very fruitful. The project has been totally funded by the Piedmont Region (Italy) in the frame of the CIPE 2007 program in the section Food Security.
PY - 2011/6
Y1 - 2011/6
N2 - Pulsed Electric Fields (PEF) technology is a promising non-thermal processing method for inactivation of microorganisms. A small PEF bench system able to treat a 0.4 ml static liquid volume has been built and tested at the laboratories of the Università del Piemonte Orientale in Alessandria, Italy. The technique used to produce the required fields consists of charging high voltage cables of various lengths and subsequently discharge them on a cylindrical cell. The pulse intensity can be adjusted to reach a maximum electric field in the cell of about 35 kV/cm and the pulse frequency can reach 10 Hz. We describe the PEF system in some detail and, as a benchmark of its performances, we report preliminary results obtained on Escherichia coli (ATCC 25922) at 109 Cfu/ml concentration suspended in a McIlvaine buffer (pH 7.2).
AB - Pulsed Electric Fields (PEF) technology is a promising non-thermal processing method for inactivation of microorganisms. A small PEF bench system able to treat a 0.4 ml static liquid volume has been built and tested at the laboratories of the Università del Piemonte Orientale in Alessandria, Italy. The technique used to produce the required fields consists of charging high voltage cables of various lengths and subsequently discharge them on a cylindrical cell. The pulse intensity can be adjusted to reach a maximum electric field in the cell of about 35 kV/cm and the pulse frequency can reach 10 Hz. We describe the PEF system in some detail and, as a benchmark of its performances, we report preliminary results obtained on Escherichia coli (ATCC 25922) at 109 Cfu/ml concentration suspended in a McIlvaine buffer (pH 7.2).
UR - https://www.scopus.com/pages/publications/79958290855
U2 - 10.1016/j.nuclphysbps.2011.03.165
DO - 10.1016/j.nuclphysbps.2011.03.165
M3 - Article
SN - 0920-5632
VL - 215
SP - 162
EP - 164
JO - Nuclear Physics B - Proceedings Supplements
JF - Nuclear Physics B - Proceedings Supplements
IS - 1
ER -