However, Palaniappan and Sastry (1992) found no difference between the effects of ohmic and conventional heat treatment on the death kinetics of yeast (Zygosaccharomyces
bailli), under identical heating histories. In some cases, however, a mild electrical pretreatment decreased the subsequent inactivation requirements, for E. coli. The authors observed only slightly lower D values for the inactivation of Zygosaccharomyces bailii and E. coli when ohmic heating was applied at temperatures lower than 56 C. Although these D values were lower when compared to conventional heating, a t-test comparison at 95% confidence level showed no significant statistical difference between treatments