TABLE 2.

DiBAC₄(3) accumulation values^a

Duty ratio	Applied voltage (Vrms)	DiBAC4(3) accumulation value (%) inb:
		E. coli O157:H7	S. Typhimurium	L. monocytogenes
0.05	48	168.96 ± 4.87 Acd	133.49 ± 0.71 Be	126.18 ± 2.65 Cd
0.1	48	163.92 ± 4.92 Ad	140.79 ± 1.89 Bd	128.57 ± 3.02 Cd
	60	174.11 ± 1.35 Abc	162.73 ± 2.85 Bc	133.55 ± 1.54 Cc
	70	179.70 ± 3.92 Bb	187.77 ± 4.72 Ab	144.64 ± 0.88 Cb
	80	190.60 ± 0.93 Ba	202.09 ± 3.52 Aa	181.03 ± 2.60 Ca

^aValues are presented as the ratio of each treatment group to the control for E. coli O157:H7, S. Typhimurium, and L. monocytogenes isolates treated by POH at different duty ratios and applied voltages for the maximum treatment times. Maximum treatment times were 490, 310, 200, and 160 s at 48, 60, 70, and 80 V_rms, respectively.

^bData are expressed as means ± standard deviations from three replications. Values followed by different uppercase letters in the same row are significantly different (P < 0.05). Values followed by different lowercase letters in the same column are significantly different (P < 0.05).