Aseptic processing of a strawberry pulp in a continuous ohmic heater: numerical simulations and model validation

Abstract

Continuous food-sterilization processes often involve the flow of liquids or solid-liquid mixtures, frequently highly viscous and with non-Newtonian behaviour, in pipes and reactors. Heat treatment of such flows is complex and it is necessary to guarantee that each part of the material is adequately processed, preventing overcooking as much as possible. The use of ohmic heating technology as an alternative heating method has regained interest for complex fluids or multiphase foods.