Research Note: Inactivation of Escherichia coli O157:H7 and Escherichia coli 8739 in Apple Juice by Pulsed Electric Fiedls

摘要

The effect of high voltage pulsed electric field (PEF) treatment on Escherichia coli O157:H7 and generic E. coli 8739 in apple juice was investigated. Fresh apple juice samples inoculated with E. coli O157:H7 and E. coli 8739 were treated by PEF with selected parameters including electric field strength, treatment time, and treatment temperature. Samples were exposed To bipolar pulses with electric field strength, treatment time, and treatment temperature. Samples were exposed To bipolar pulses with electric field strengths of 30, 26, 22, and 18 kV/cm and total treatment times of 172, 144, 115, and 86 μs.