Design and Fabrication Pasteurization of Fresh Milk-based on Pulsed Electric Field Technology

Pulsed electric field (PEF) is one of several food preservation methods that apply short pulses of electricity for microbial inactivation and cause a minimal detrimental effect on food quality attributes. PEF technology aims to offer high-quality foods and long-time storage to customers. PEF technology is considered superior to traditional thermal processing methods for food quality attributes because it avoids or significantly reduces detrimental changes in foods’ sensory and physical properties. This paper described designing and fabricating a new milk pasteurization system based on the pulsed electric field, namely high voltage pulse power plant, agitator, heating, control panel with temperature sensor, treatment container. Testing and characterization of each sub-system and the system as a whole have been conducted, and the test results show that the pasteurization machine is running as expected.