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CONFIDENTIAL INFORMATION
Page 7 of 13
Table 1. Concentration of
E. coli
O157:H7 Inoculum Levels per Gram of
Blueberries, Determined through Most Probable Number Analysis
1. MPN/g and 95% Confidence Interval Values were generated from the LCF MPN Calculator Version 1.6
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Food Matrix/Inoculation Level
Sample Size Sample Number Number of Positives MPN/g
1
95% CI
1
50
5
0
25
5
5
10
5
1
50
5
0
25
20
8
10
5
1
Blueberries/High
1.700 X 10
-2
7.598 X 10
-3
, 3.804 X 10
-2
Blueberries/Low
1.305 X 10
-2
6.655 X 10
-3
, 2.237 X 10
-2