At human infectious diseases by enterohaemorrhagic Escherichia coli (EHEC)
occurring since 1982, among other foodstuffs also raw meat products are of
special importance from food hygienic aspect. The effects of drying, acidif
ication, nitrite, starter cultures and ripening temperatures have been inve
stigated on growth (die off) behaviour of Escherichia coli O157:H7 in slice
able raw sausages. The survival rare of EHEC turned to be influenced primar
ily by the degree of drying, the ripening-/storage-temperature and the dura
tion of the ripening. To achieve reductions over 3 orders of magnitude a ri
pening period of minimum 21 days is necessary with corresponding acidificat
ion and drying of the raw sausages. Higher nitrite additions and different
starter cultures had a smaller influence.