Table 1.

Bacterial and viral indicators.

Microorganism		Pork	Beef	Chicken	Ham	Mortadella
n		10	10	10	5	5
Total aerobic bacteria	%	80	100	100	100	100
	Media	6.2 · 105	4.5 · 105	2.1 · 106	1.0 · 105	2.1 · 105
	SD	3.3 · 102	4.3 · 101	6.7 · 103	1.0 · 103	4.2 · 102
Total aerobic bacteria ampR	%	40	100	100	100	100
	Media	2.4 · 105	3.0 · 105	6.3 · 105	6.7 · 104	4.5 · 104
	SD	1.2 · 101	2.0 · 101	7.1 · 104	8.0 · 104	6.6 · 104
E. coli	%	30	30	90	0	0
	Media	2.3 · 103	3.7 · 101	3.3 · 103	<41.6	<41.6
	SD	2.7 · 103	—	7.3 · 103	—	—
E. coli ampR	%	30	0	90	0	0
	Media	6.6 · 102	<41.6	2.8 · 103	<41.6	<41.6
	SD	4.7 · 102	—	6.7 · 102	—	—
Somatic coliphages	%	60	50	100	40	0
	Media	3.2 · 102	6.7 · 101	2.3 · 103	1.9 · 101	<12.5
	SD	2.5 · 102	5.0 · 101	2.1 · 103	8.8 · 100	—

Total aerobic bacteria and E. coli grown in the absence or presence of ampicillin were enumerated as bacterial indicators (CFU/25 g) while somatic coliphages were enumerated as viral indicators (PFU/25 g) in the food samples.

SD Standard deviation.