Micro December 2018

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Table 5. Log 10 E. coli Counts for Dry Dog Kibble with by 3M Petrifilm Rapid E. coli /Coliform Count Plate (42 o C) and ISO 16649-2 Uninoculated Low Medium High

3M Petrifilm Rapid E. coli /Coliform Count Plate Log 10 CFU/g

3M Petrifilm Rapid E. coli /Coliform Count Plate Log 10 CFU/g

3M Petrifilm Rapid E. coli /Coliform Count Plate Log 10 CFU/g

3M Petrifilm Rapid E. coli /Coliform Count Plate Log 10 CFU/g

ISO 16649-2 Log 10 CFU/g

ISO 16649-2 Log 10 CFU/g

ISO 16649-2 Log 10 CFU/g

ISO 16649-2 Log 10 CFU/g

Collaborator

A a

B

A

B

A

B

A

B

A

B

A

B

A

B

A

B

1 2 3 4 5 6 7 8 9

0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

1.322 1.708 1.322 1.491 1.491 1.491 1.041 1.322 1.613

1.041 1.041 1.041 1.041 1.491 1.708 1.613 1.708 1.708

2.303 2.233 2.149 2.004

1.613 1.491 1.708 1.322 1.785 1.785 1.322 1.851 1.322

1.322 1.041 1.322 1.613 1.613 1.708 1.708 1.613 1.613

3.045 3.004 3.083 3.083 3.233 3.303 3.281 3.083 3.149

2.908 3.149 2.908 3.281 3.233 3.149 3.045 3.449 3.004

3.083 3.258 3.470 3.303 3.507 3.004 3.207 3.045 3.004

3.303 2.959 3.479 3.382 3.083 2.785 3.400 3.083 3.281

2.52

2.303 2.364 2.344

2.083 2.258 2.303 2.179 2.233 2.479 2.581 2.417 2.449 2.233 2.520 2.464 2.303 2.004 2.149 2.258 2.382 2.479 2.281 2.520 2.464 2.520 2.233 2.258 2.507 2.400 2.303 2.004

a A and B= Indicated duplicate test portions;

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