Impact of Pulsed Electric Fields (PEF) on post-permeabilization processes in plant cells [Elektronische Ressource] / Anna Winter. Betreuer: Dietrich Knorr

Impact of Pulsed Electric Fields (PEF) on post-permeabilization processes in plant cells vorgelegt von Diplom-Ingenieurin Anna Winter von der Fakultät III – Prozesswissenschaften der Technischen Universität Berlin zur Erlangung des akademischen Grades Doktorin der Ingenieurwissenschaften - Dr.-Ing. - genehmigte Dissertation Promotionsausschuss: Vorsitzender: Prof. Dr. Dipl.-Ing. Frank-Jürgen Methner 1. Berichter: Prof. Dr. Dipl.-Ing. Dietrich Knorr 2. Berichter: Prof. Dr. Sc. agr. Monika Schreiner Tag der wissenschaftlichen Aussprache: 06.06.2011 Berlin 2011 D 83 Für Oliver, Mae und Milla Abstract I Abstract The exposure of biological cell material to Pulsed Electric Fields (PEF) leads to a spectrum of biophysical and biochemical responses. The most important effect, the electrical breakdown of cellular membranes, realizes the temporary or permanent pore formation in cell membranes, which induces an increase in membrane permeability. The loss of semipermeability enables the transport of non-permeating molecules across the cell membrane. The disintegration of the cell membrane as well as the alteration of structural properties offers numerous options to apply this novel, non-thermal and short-time technique in food- and bioengineering.