Table 3.

Concentration and recovery of natural microbiota in aqueous chicken homogenates (n = 8)

Concn of natural microbiota (log CFU/ml)		Vol of concentrated sample (μl)	Concn factor	Recovery (%)	Concn of S. Enteritidis (log CFU/ml) in concentrated sample
Prefiltered sample	Concentrated sample
1.00	3.72	280	2.72	58.8
1.00	4.01	250	3.01	102.8
1.78	4.67	150	2.89	47.1
1.78	4.63	350	2.85	99.2
1.00	3.48	600	2.48	72.0
1.00	3.83	280	2.83	74.9
2.00	4.92	250	2.92	83.5
3.17	6.12	200	2.93	71.4	1.3
		295 ± 137	2.83 ± 0.17	76.2 ± 18.8