Skip to main content
. 2012 Oct 20;97(9):4021–4037. doi: 10.1007/s00253-012-4477-2

Table 6.

Reproducibility test of the four SYBR®Green Listeria spp. and L. monocytogenes detection assays

Sample L. mono 1/2b (ATCC 51780) L. mono 4d (BCRL: 7/89) L. mono 4b (BCRL: 10/47) L. mono 3b (Würburg) L. mono 4a (ATCC 19114) L. mono 1/2c (BCRL: 10/49) L. mono 3a (BCRL: 9/109) L. mono 4c (EU-RL: 09LEB41) Uncertainty (99 %)
Copy number 20 50 100 200 50 20 20 5
iap-50-deg C q Average Lab 1 29.58 28.16 27.45 26.80 28.46 29.57 29.49 31.59 1.44
Average Lab 2 29.15 27.37 27.65 26.67 27.29 28.45 28.52 32.03
RSDR (%) 1.03 2.03 0.50 0.35 2.98 2.72 2.35 0.96
T m Average Lab 1 77.00 77.00 76.50 76.75 76.50 77.00 77.00 76.50 1.21
Average Lab 2 76.35 76.35 75.50 76.05 76.05 76.50 76.50 76.05
RSDR (%) 0.60 0.60 0.93 0.65 0.42 0.46 0.46 0.42
prs-2-deg C q Average Lab 1 28.38 26.62 26.04 25.44 27.31 28.36 28.45 30.03 0.95
Average Lab 2 27.91 26.48 25.42 25.72 26.46 28.23 27.93 30.56
RSDR (%) 1.19 0.35 1.70 0.78 2.24 0.35 1.31 1.24
T m Average Lab 1 71.75 71.75 71.50 72.00 71.75 71.50 71.75 71.50 0.46
Average Lab 2 71.60 71.60 71.45 71.45 71.60 71.60 71.45 71.45
RSDR (%) 0.15 0.15 0.05 0.54 0.15 0.10 0.30 0.05
hlyA-177 C q Average Lab 1 30.28 28.33 27.51 29.32 28.83 30.05 29.57 31.88 1.30
Average Lab 2 29.16 27.63 27.60 28.53 28.29 29.05 29.74 31.61
RSDR (%) 2.66 1.77 0.23 1.92 1.33 2.41 0.40 0.61
T m Average Lab 1 74.00 74.00 74.00 74.00 73.50 74.00 74.00 74.00 0.88
Average Lab 2 73.75 73.75 73.40 73.40 73.20 73.75 73.40 73.40
RSDR (%) 0.24 0.24 0.58 0.58 0.29 0.24 0.58 0.58
hlyA-146-deg-tronc C q Average Lab 1 29.90 28.14 27.65 27.20 28.95 30.37 30.53 32.65 3.72
Average Lab 2 27.65 26.03 26.23 25.70 26.75 28.46 27.96 31.28
RSDR (%) 5.53 5.50 3.74 4.02 5.58 4.61 6.19 3.02
T m Average Lab 1 75.00 75.00 74.75 75.00 73.50 73.75 74.00 74.75 1.42
Average Lab 2 74.50 74.35 74.05 74.05 73.05 73.20 73.05 73.75
RSDR (%) 0.47 0.62 0.67 0.90 0.43 0.53 0.91 0.95