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1
Vanilla ice cream
2
For ice cream inoculated
with
L.monocytogenes
(unpaired enrichments) there were 10 confirmed positives for the LMX method and
3
13 confirmed positives for the AOAC reference method. All uninoculated samples were negative with both methods. There were no
4
false positives for the LMX method for uninoculated samples. Confirmation using OAA or ChromID Lmono media showed exact
5
agreement with traditional media. There was no significant difference between the LMX method and the reference method using
6
unpaired Chi-square test. (Table 12)
7
8
Frozen spinach
9
For frozen spinach inoculated with
L.monocytogenes
(unpaired enrichments) there were 4 confirmed positives for the LMX method
10
and 5 confirmed positives for the FDA BAM reference method. All uninoculated samples were negative with both methods. There
11
were no false positives for the VIDAS method for uninoculated samples. Confirmation using OAA or ChromID Lmono media
12
showed exact agreement with traditional media. There was no significant difference between the LMX method and the reference
13
method using unpaired Chi-square test. (Table 12)
14
15
Peanut butter
16
For peanut butter inoculated with
L.monocytogenes
(unpaired enrichments) there were 8 confirmed positives for the LMX method and
17
10 confirmed positives for the FDA BAM reference method. All uninoculated samples were negative with both methods. There were
18
no false positives for the VIDAS method for uninoculated samples. Confirmation using OAA or ChromID Lmono media showed
19
exact agreement with traditional media. There was no significant difference between the LMX method and the reference method using
20
unpaired Chi-square test. (Table 12)
21
22
Cooked shrimp
23
For cooked shrimp inoculated with
L.monocytogenes
(unpaired enrichments) there were 14 confirmed positives for the LMX method
24
and 13 confirmed positives for the FDA BAM reference method. All uninoculated samples were negative with both methods. There
25
were no false positives for the VIDAS method for uninoculated samples. Confirmation using OAA or ChromID Lmono media
26
showed exact agreement with traditional media. There was no significant difference between the LMX method and the reference
27
method using unpaired Chi-square test. (Table 12)
28
29
Smoked white fish
30
For smoked fish inoculated with
L.monocytogenes
(unpaired enrichments) there were 8 confirmed positives for the LMX method and
31
8 confirmed positives for the FDA BAM reference method. All uninoculated samples were negative with both methods. There were
32
no false positives for the VIDAS method for uninoculated samples. Confirmation using OAA or ChromID Lmono media showed
33
exact agreement with traditional media. There was no significant difference between the LMX method and the reference method using
34
unpaired Chi-square test. (Table 12)
35
36
GovVal Study:
37
PTM Certification Report