Micro December 2018
Table 3. Log 10 Coliform Counts for Dry Dog Kibble with by 3M Petrifilm Rapid E. coli /Coliform Count Plate (37 o C) and ISO 4832 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 4832 Log 10 CFU/g
ISO 4832 Log 10 CFU/g
ISO 4832 Log 10 CFU/g
ISO 4832 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
2.004 1.908 1.613 1.041 1.785 1.613 1.322 1.491 1.613
1.785 1.322 1.041 1.041 1.851 1.908 1.959 1.785 2.004
1.708 1.613 1.708 1.322 1.785 1.908 1.785 2.004 1.491
1.613 1.041 1.708 1.785 1.613 1.908 2.004 1.613 1.851
2.344 2.233 2.179 2.004 2.545 2.400 2.603 2.654 2.520 2.682 2.449 2.592 2.344 2.569 2.603 2.741 2.400 2.520 2.673 2.700 2.581 2.624 2.400 2.303 2.741 2.876 2.779 2.930 2.820 2.846 2.581 2.700 2.700 2.741 2.634 2.493
3.004 3.179 3.382 3.258 3.433 3.400 3.507 3.464 3.533
3.083 3.344 3.400 3.281 3.592 3.507 3.344 3.464 3.281
3.179 3.303 3.581 3.464 3.233 3.258 3.233 3.344 3.400
3.344 3.258 3.545 3.400 3.400 3.179 3.433 3.479 3.303
a A and B= Indicated duplicate test portions;
1
14
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