Table 4.

Quantification of the number of copies of thenuc gene of S. aureus in artificially contaminated cheeses of three different types by RTQ-PCR

SampleNo. of nuc gene copies or CFU/2 g of:
TilsiterCamembertGoat's cheese
CopiesCFUCopiesCFUCopiesCFU
12.6 × 108 3.4 × 107 2.6 × 108 2.1 × 107 8.4 × 107 2.5 × 107
27.4 × 106 4.3 × 106 2.2 × 107 2.0 × 106 8.6 × 106 3.4 × 106
34.6 × 105 2.2 × 105 3.6 × 106 2.0 × 105 5.2 × 105 3.8 × 105
44.0 × 104 3.0 × 104 3.0 × 105 1.6 × 104 2.2 × 104 2.9 × 104
59.2 × 103 2.0 × 103 1.5 × 104 2.1 × 103 2.2 × 103 3.8 × 103
63.8 × 102 3.5 × 102 2.4 × 103 1.5 × 102 1.5 × 102 2.9 × 102
7a 2.0 × 101 6.4 × 102 2.0 × 101 3.6 × 101
  • a —, inconsistent quantification data.