Fig. 5.

Effects of different combinations on foodborne pathogens and naturally present microbes on blueberries. (A) E. coli O157:H7. (B) S. Typhimurium. (C) Aerobic mesophilic counts. (D) Molds and yeasts. Count reduction indicates the difference in microbial counts between the control and treatment groups at the same time points. The different lowercase letters within the same group indicate significant differences (P < 0.05). US, Ultrasound; PAA, peracetic acid; FC, free chlorine; CP, cold plasma.