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Table 1 z values reported from investigations where the experimental conditions laid down in this study were fulfilled.

From: Heat Resistance in Liquids of Enterococcus spp., Listeria spp., Escherichia coli, Yersinia enterocolitica, Salmonella spp. and Campylobacterspp

Bacterium/Bacterial group

z* values (°C)

References

 

Range

Mean ± SD

No. of values

 

Enterococcus faecium

3.63–12.82

8.4 ± 2.5

14

[148, 113, 140, 68, 154, 120]

Enterococcus faecalis

2.24–9.06

6.0 ± 2.5

10

[59, 148, 113, 140]

Listeria innocua

4.65–6.9

5.8 ± 0.8

8

[138, 56, 48, 133]

Listeria monocytogenes

4.30–11.45

6.1 ± 1.2

85

[15, 16, 17, 8, 18, 21, 40, 45, 101, 138, 55, 104, 56, 139, 48, 157, 158, 7, 133, 123, 149, 23, 131, 147, 96]

Listeria ivanovii

6.3–6.6

6.5 ± 0.2

2

[17]

Listeria seeligeri

6.4–6.9

6.7 ± 0.3

2

[17]

Listeria welshimeri

6.1–6.9

6.5 ± 0.5

2

[17]

Escherichia coli

3.4–6.0

5.1 ± 0.8

11

[143, 39, 119, 29, 10, 175]

Yersinia enterocolitica

4.0–5.78

4.8 ± 0.6

10

[106, 156, 159, 132]

Salmonella spp. (except Salm. senftenberg 775W)

3.24–9.5

5.5 ± 1.7

36

[4, 61, 39, 64, 14, 159, 151, 177, 176, 133, 10, 149, 74, 117]

Salm. senftenberg 775W

5.3–6.8

6.0 ± 0.4

13

[4, 166, 5, 64]

Campylobacter jejuni/coli

2.8–5.81

4.8 ± 0.7

14

[11, 171, 156, 159]

  1. * The z value is the number of degrees of temperature change needed to change the D value by a factor of 10 (The term D value, see Table 3).