Non-thermal Plasma Pasteurization for LiquidFoods

摘要

A new non-thermal pasteurization technique - non-thermal plasma (NTP) wasinvestigated. This study shows that NTP is capable of killing foodborne pathogens such asEscherichia coli in liquids such as water, apple cider, and orange juice. Five logs reduction inthe bacteria counts was achieved under the experimental conditions. At or above plasmaignition voltages, the NTP bactericidal effect varied with treatment time and volumes. Thecharacteristics of sample materials also affected the treatment. Vitamin C loss was substantiallyreduced with the treatment compared with other methods.