Sterilizing Effect of Plate Heat Exchangers

Abstract

The sterilizing effect of an ultrahigh-temperature short-time system applied to liquid food flowing in plate heat exchangers was experimentally investigated by the addition of heat-resistant spores. As a result, the addition of the sterilizing effect of the temperature-holding section to that of heating and cooling sections, obtained from calculating the temperature rising and falling curves of the fluid, was effective in estimating the actual death rate of spores.