The fate of Listeria monocytogenes on green leafy vegetables (broad-leaved endive, curly-leaved endive, butterhead lettuce and lamb's lettuce) was studied. Populations oft. monocytogenes increased by 1.5 log in 7 d at 10 degrees C on broad-leaved endives and butterhead lettuce, by 0.5 log on curly-leaved endives and decreased by 1 log on lamb's lettuce. Growth patterns of the epiphytic microflora were similar among the four salad types.
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[1]
BEAUFORT A, 1992, REV GENERALE FROID, V82, P28