Inactivation of Escherichia coli O157:H7 and spoilage yeasts in germicidal UV-C-irradiated and heat-treated clear apple juice

► Yeasts were generally more UV-C resistant than E. coli O157:H7. ► E. coli O157:H7 strains were more heat resistant than the yeasts. ► In most challenge studies conducted, an individual E. coli or yeast strain was found more resistant than composited inocula.