It appeared that the elevated pre-conditioning temperature had enhanced
the enzyme inactivation significantly due to many factors such
as changes in the cell membranes elasticity, fluidity, induced thermal
softening and structural changes in cell walls due to mild heating
(Andersson et al., 1994; Rao & Lund, 1986) as well as thermal phase
transitions within the membrane layer (Ekserova & Nikolova, 1992;
Mouritsen & Jørgensen, 1997) taking place in carrot tissues prior to
PEF processing. Among all the elevated pre-conditioning temperatures
(10 to 40 °C) examined in this study, the development of temperature