Ferraz et al. (2010) also obtained a similarity between the Petrifilm EB system and ISO 21528:2 in the enumeration results of Enterobacteriaceae in a powdered milk production chain, after having analyzed raw milk, pasteurized milk, milk powder, equipment swabs and hand swabs.
The results relative to the correlation between ISO 21528-2:2004 and the TEMPO® EB system also showed a high correlation the counts of Enterobacteriacea of micro-flora pasteurized milk samples, artificially contaminated pasteurized milk samples and artificially contaminated UHT milk, as can be seen in