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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Use of pulsed electric field pre-treatment to improve dehydration characteristics of plant based foods
Trends in Food Science and Technology, Volume 12, No. 8, Year 2001
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Description
Conventional dehydration of fruits and vegetables affects their physical and biochemical status leading to shrinkage, change of colour, texture and taste. Alteration of the physical properties of foods with minimal influence on the quality could be a means of reducing drying time, minimising quality degradation and saving energy. Increasing consumer markets for minimally processed fruits and vegetables have prompted researchers to study combined methods as preservation techniques. Pulsed electric field is one of the more promising non- thermal processing method inducing membrane permeabilisation within a very short time (μs to ms range) leaving the product matrix largely unchanged while positively affecting mass transfer in subsequent processing of foods. Rapid and accurate on-line determination of the state of cell membrane systems is important in optimising various processes (i.e. minimizing cell damage in minimal processes, monitoring disruption for mass transfer purposes and inducing biosynthetic stress/wound reactions/responses). This paper reviews recent work on the use of pulsed electric fields as an upstream process in dehydration and rehydration of plant based foods. An effective and simple method for quantifying extent of membrane permeabilization is also discussed and suggestions for future work are highlighted. © 2002 Elsevier Science Ltd. All rights reserved.
Authors & Co-Authors
Ade-Omowaye, Beatrice I.O.
Germany, Berlin
Technische Universität Berlin
Angersbach, Alexander K.
Germany, Berlin
Technische Universität Berlin
Taiwo, Kehinde Adekunbi
Germany, Berlin
Technische Universität Berlin
Knorr, Dietrich
Germany, Berlin
Technische Universität Berlin
Statistics
Citations: 173
Authors: 4
Affiliations: 1
Identifiers
Doi:
10.1016/S0924-2244(01)00095-4
ISSN:
09242244
Study Approach
Mixed-methods