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Legend
APPENDIX B : page 1 / 13
Total bacteria growth
Ø : no growth
L = low
M = medium
H = high
Distribution of flora
suspicious colonies =
Listeria
colonies
A = pure culture of suspicious colonies
B = mix with a majority of suspicious colonies
C = mix with a minority of suspicious colonies
D = mix with rare suspicious colonies
E = absence of suspicious colonies
(x) : x typical colonies of
Listeria
if x < 5
ALOA or OAA :
Listeria
agar according to Ottaviani & Agosti
P : Palcam agar
RLM : Rapid'
Lmono
agar
- (L…)(A…) onto OAA : presence of blue colonies without halo
- (L…)(A…) sur RLM : presence of white or yellow colonies (Lspp)
* : necessary purification
CA : artificial contamination
Categories of samples :
MP : Meat Products
DP : Dairy Products
RMC : Raw Milk Cheeses
SF : Seafood products
V : Vegetables
EN : Environmental samples
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VIDAS LMX - Summary 2012 v01