Table 4. Detection limit of E. sakazakii (Cronobacter spp.) N6 between DFI and real-time PCR after 40 mL sample spin down

Inoculation concentration	E. sakazakii (Cronobacter spp.) N6
	40 mL spin down (log cfu/mL)		P/T1)
	6 h	24 h	6 h	24 h
56 cfu/30 g	5.78	9.83	2/2	2/2
7 cfu/30 g	5.22	10	2/2	2/2
2 cfu/30 g	5.05	10	2/2	2/2
0 cfu/30 g	-	-	0/2	0/2

Positive number per total number analyzed by real-time PCR.
DFI, Druggan-Forsythe-Iversen.