Pulsed power 2009.pdf (949.52 kB)
An innovative and non-invasive technology for PEF food processing
conference contribution
posted on 2012-06-26, 15:16 authored by Bucur NovacBucur Novac, Partha Sarkar, Ivor Smith, William WhittowWilliam Whittow, Charles GreenwoodThe use of pulsed electric fields (PEFs) is a mature
technology used in the industrial processing of food, for
example, fruit juice. It is however restricted to liquid
(pumpable) food and involves metal electrodes in direct
contact with the foodstuff – i.e. it is at present an
inherently ‘invasive’ technology.
Recently, Loughborough University has undertaken an
experimental programme aimed at demonstrating a new
and ‘non-invasive’ technology that uses an antenna
coupled to a fast high-voltage pulse generator to produce
an intense pulsed electric field. The machine that has been
built and undergone preliminary testing uses a Teslatransformer-
based pulse forming line generator coupled to
a Valentine antenna to produce very intense electric fields
in water.
The technology developed offers considerable scope
for use with any type of food, including solid foods such
as meat. Apart from the much greater volume available
for processing, and other more or less obvious
advantages, the new technique is also highly energy
efficient as, unlike the existing invasive approach, it does
not drive a current through the food being processed.
The paper presents the experimental equipment and
explains the type of sensors that need to be developed for
measurement of the electric field produced. Some of the
major implications the technique may offer for the future
of PEF food processing are introduced.
History
School
- Mechanical, Electrical and Manufacturing Engineering
Citation
NOVAC, B.M. ... et al, 2009. An innovative and non-invasive technology for PEF food processing. PPC'09 - 17th IEEE International Pulsed Power Conference, Washington, DC, June 28th - July 2nd, pp. 737-741.Publisher
© IEEEVersion
- AM (Accepted Manuscript)
Publication date
2009Notes
© 2009 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.ISBN
9781424440658Publisher version
Language
- en