required for the generation of 2-nitrophenol and 3-fluoroaniline,
respectively, after overnight incubation (Table 2). A time study,
carried out in duplicate using L. monocytogenes NCTC 11994 at an
initial inoculum of 1–1.5 107 CFUml1 milk, indicated that
2-nitrophenol was liberated by both L. monocytogenes samples
in whole milk after 7 h incubation and 3-fluoroaniline after 9 h
incubation. Table 3 outlines liberated VOCs over the 21 h time
period.