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An innovative and non-invasive technology for PEF food processing

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conference contribution
posted on 26.06.2012 by Bucur Novac, Partha Sarkar, Ivor Smith, William Whittow, Charles Greenwood
The 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

© IEEE

Version

AM (Accepted Manuscript)

Publication date

2009

Notes

© 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

9781424440658

Language

en

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