Combined Effect of Temperature, pH, and Presence of Nisin on Inactivation of Staphylococcus aureus and Listeria monocytogenes by Pulsed Electric Fields

2011 ◽  
Vol 8 (7) ◽  
pp. 797-802 ◽  
Author(s):  
Guillermo Saldaña ◽  
Hugo Minor-Pérez ◽  
Javier Raso ◽  
Ignacio Álvarez
Keyword(s):  
Staphylococcus Aureus ◽  
Listeria Monocytogenes ◽  
Electric Fields ◽  
Pulsed Electric Fields ◽  
Combined Effect ◽  
Effect Of Temperature

Combined effect of temperature and pulsed electric fields on apple juice peroxidase and polyphenoloxidase inactivation

2008 ◽  
Vol 109 (2) ◽  
pp. 402-407 ◽  
Author(s):  
Joerg Riener ◽  
Francesco Noci ◽  
Denis A. Cronin ◽  
Desmond J. Morgan ◽  
James G. Lyng
Keyword(s):  
Electric Fields ◽  
Apple Juice ◽  
Pulsed Electric Fields ◽  
Combined Effect ◽  
Effect Of Temperature

Combined effect of temperature and pulsed electric fields on soya milk lipoxygenase inactivation

2008 ◽  
Vol 227 (5) ◽  
pp. 1461-1465 ◽  
Author(s):  
Joerg Riener ◽  
Francesco Noci ◽  
Denis A. Cronin ◽  
Desmond J. Morgan ◽  
James G. Lyng
Keyword(s):  
Electric Fields ◽  
Pulsed Electric Fields ◽  
Combined Effect ◽  
Effect Of Temperature ◽  
Soya Milk

scholarly journals Component release after exposure of Staphylococcus aureus cells to pulsed electric fields

2021 ◽  
pp. 102838
Author(s):  
Víctor Freire ◽  
Giuseppe Lattanzio ◽  
Irene Orera ◽  
Pilar Mañas ◽  
Guillermo Cebrián
Keyword(s):  
Staphylococcus Aureus ◽  
Electric Fields ◽  
Pulsed Electric Fields

Combined Effect of Nisin and Pulsed Electric Fields on the Inactivation of Escherichia coli

2000 ◽  
Vol 63 (6) ◽  
pp. 741-746 ◽  
Author(s):  
MAURICIO R. TEREBIZNIK ◽  
ROSA J. JAGUS ◽  
PATRICIA CERRUTTI ◽  
MARTA S. DE HUERGO ◽  
ANA M. R. PILOSOF
Keyword(s):  
Escherichia Coli ◽  
Protective Effect ◽  
Electric Fields ◽  
High Voltage ◽  
Combined Treatment ◽  
Action Spectrum ◽  
Pulsed Electric Fields ◽  
Combined Effect ◽  
Bacterial Cells ◽  
Doehlert Design

The Doehlert design was applied in order to investigate the combined effect of nisin and high voltage pulsed electric fields (PEF) on the inactivation of Escherichia coli in simulated milk ultrafiltrate media. Nisin alone was totally inactivated by PEF, but in the presence of bacterial cells a protective effect was observed. However, the effectiveness of nisin was still decreased when bacterial cells were subjected to the combined treatment. In spite of this phenomenon, an almost additive response emerged as a consequence of the combined treatment. A 4-log cycle reduction may be accomplished with around 1,000 IU/ml (7.15 μM) of nisin and three pulses of 11.25 kV/cm or 500 IU/ml for five pulses of the same intensity. The observed efficacy arising from the combination of both treatments suggests the possibility of using PEF for improving the action spectrum of natural antimicrobials.

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