69 / 596
28
several samples representative of the matrix, i.e. samples obtained from different origin, during
1
any validation period when adopting the 3M method or when testing new or unknown matrices
2
or matrices that have undergone raw material or process changes.
3
A matrix can be defined as a type of product with intrinsic properties such as composition and
4
process. Differences between matrices may be as simple as the effects caused by differences
5
in their processing or presentation for example, raw vs. pasteurized; fresh vs. dried, etc.
6
7
STORAGE AND DISPOSAL
8
Store the 3M Molecular Detection Assay 2 -
Listeria
at 2-8°C. Do not freeze. Keep kit away from
9
light during storage. After opening the kit, check that the foil pouch is undamaged. If the pouch
10
is damaged, do not use. After opening, unused reagent tubes should always be stored in the re-
11
sealable pouch with the desiccant inside to maintain stability of the lyophilized reagents. Store
12
resealed pouches at 2-8°C for no longer than 60days.
13
14
Do not use 3M Molecular Detection Assay 2 -
Listeria
past the expiration date. Expiration date
15
and lot number are noted on the outside label of the box. After use, the enrichment medium and
16
the 3M Molecular Detection Assay 2 -
Listeria
tubes can potentially contain pathogenic
17
materials. When testing is complete, follow current industry standards for the disposal of
18
contaminated waste. Consult the Safety Data Sheet for additional information and local
19
regulations for disposal.
20
21
INSTRUCTIONS FOR USE
22
Follow all instructions carefully. Failure to do so may lead to inaccurate results.
23
Periodically decontaminate laboratory benches and equipment (pipettes, cap/decap tools, etc.)
24
with a 1- 5% (v:v in water) household bleach solution or DNA removal solution.
25
26
S
AMPLE
E
NRICHMENT
27
Table 2 presents guidance for the enrichment of food and environmental samples. It is the
28
user’s responsibility to validate alternate sampling protocols or dilution ratios to ensure this test
29
method meets the user’s criteria.
30
31
Foods
32
1.
Allow the Demi-Fraser Broth enrichment medium (includes ferric ammonium citrate) to
33
equilibrate to ambient laboratory temperature.
34
AOAC Research Institute
Expert Review Panel Use Only
OMAMAN-29/OMAMAN-30 Combined Collaborative Study Protocol
OMA ERP - June 2016
ERP Use Only