TABLE 3.

Effects of 10 min of pressurization, the presence of nisin during recovery, temperature, and pH on log reduction of L. plantarum and E. coli colonies

Microorganism (nisin concn)	Pressure (MPa)	−Log (Nt/N0)
		pH 4.5				pH 7.0
		10°C	25°C	35°C	40°C	10°C	25°C	35°C	40°C
L. plantarum (0.5 μg/ml)	0.1	1.6	1.2	0.6		3.5	2.3	0.6
	100		0.8	0.4		1.5	1.0
	150	3.4	1.3	0.6		3.4	1.1	1.2
	200	4.9	3.6			>6.7	1.4
	250		4.6					4.9
	300		5.3				>6.3
E. coli (5 μg/ml)	0.1	0.3			0.1	0.1			0.1
	150	2.2			0.2	4.1			0.4
	200	>6.2			>6.2	4.9			0.5