In this study, inactivation of AAO and POD for PEF-treated carrots
showed correlation with the supplied specific energy inputs and
pre-conditioning temperatures. Additionally, the cutting force required
for carrots was observed to improve when the carrot fibre was in parallel
to the electrodes and particularly pronounced when increasing the
pulse number.The approach to use combined PEF with elevated preconditioning
temperature has shown to reduce the heat load required
to inactivate enzymes and exert significant reduced mechanical force
producing carrots with smaller size and complicated cutting form. In
this context, this study has suggested that integration of PEF processing
into the existing processing line for canned and frozen carrots could
achieve enzyme inactivation as well as improvement in tissue softening
necessary for cutting force and cutting accuracy.