For
example, mean counts of 102 CFU/g of P. polonicum and a prevalence
of 40% were found in predust flour (Wigmann, 2015). It is known
that psychrophilic strains of P. glabrum, P. polonicum, P. commune,
P. solitum and P. crustosum may be isolated from foods (Samson
et al., 2002)