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Pulsed high electric field sterilization
7th Pulsed Power Conference, 2005High electric fields (> 2kV/cm) are known to kill microorganisms by causing dielectric breakdown of their cell membrane. This effect can in principle be used in food preservation and waste water treatment. The field strength required to maximize the kill for a given energy is shown here to be higher than the maximum field strength of 25 kV/cm used in ...
R.P. Gupta, W. Murray
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Applications of Pulsed Electric Fields in Winemaking
2022Wineries may take advantage of the ability of PEF to electroporate cell membrane of grape skins and microbial cells to improve different operations. PEF permeabilization of red grape skin cells permits reducing the duration of the maceration or to increase the color and concentration of anthocyanins and polyphenolic compounds in the wine without ...
Maza, Marcos Andres +2 more
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Pulsed Electric Field Processing
2001Doevenspeck’s patent, dating to the 1960s, describes a variety of pulsed electrical field (PEF) equipment and methods ranging from PEF processing of sausage to specific electronic embodiments. PEF development diverged into two different, though related, areas of endeavor: reversible electroporation, or PEF performed under conditions promoting ...
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Nonuniform electric fields in pulse heated wires
International Journal of Thermophysics, 1993The influence of nonuniform electric fields on the measurement of the electrical conductivity in pulse-heated wires is studied analytically. Two causes for nonuniformity are considered: switching-on of an external voltage source (transient skin effect) and temperature-dependent change of the electrical conductivity.
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Pulsed electric field assisted assembly of polyaniline
Nanotechnology, 2012Assembling conducting polyaniline (PANi) on pre-patterned nano-structures by a high rate, commercially viable route offers an opportunity for manufacturing devices with nanoscale features. In this work we report for the first time the use of pulsed electric field to assist electrophoresis for the assembly of conducting polyaniline on gold nanowire ...
Arun, Kumar +3 more
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Killing of microorganisms by pulsed electric fields
Applied Microbiology and Biotechnology, 1996Lethal effects of pulsed electric fields (PEF) on suspensions of various bacteria, yeast, and spores in buffer solutions and liquid foodstuffs were examined. Living-cell counts of vegetative cell types were reduced by PEF treatment by up to more than four orders of magnitude (> 99.99%).
T, Grahl, H, Märkl
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Enzymatic Inactivation by Pulsed Electric Fields
2001High voltage pulsed electric field (PEF) systems have been studied as one of the most promising nonthermal food preservation methods. The comparison of PEF research requires caution in considering different PEF systems that may affect enzyme activity.
H. W. Yeom, Q. H. Zhang
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Impact of Pulsed Electric Fields on Enzymes
2016Pulsed electric field (PEF) processing has emerged as a promising technology in the development of tailor-made processes to effectively control the enzyme activity. It has been proven as an effective technique for the preservation of food products as it can result in substantial inactivation of most undesirable enzymes.
Poojary M. M. +7 more
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