The AA aim was to decrease
the microbial concentration
of the surfaces of rooms or
items of food factories, by
a ionization system. The
surfaces of these rooms or
items were treated with ionizer
machine (SitalKlima
company) for twentyfour
hours. Suspensions of
Escherichia coli, Listeria monocytogenes,
and Saccharomyces
cerevisiae were intentionally
plated on different
surfaces simulating
the surfaces of rooms or
items. After the treatment
less than 1% of the initial
microbial population added
was detected. So, after ionization,
the concentration of
such population on the surfaces
was less than 1 log
unity/cm2, demonstrating
that the treatment allowed
to reach acceptable values
of surface contamination
for food industry.
