We perform various microbiological analysis of milk and milk products. We analyse the presence of pathogenic microorganisms, technologically important microorganisms (starter cultures, spoilage bacteria), inhibitory substances. We use both traditional methods and modern microbiological methods (PCR).
The laboratory of Institute of Dairy Science and Probiotics is accredited by Slovenian Accreditation with accreditation number LP-062 in the field of testing (SIST EN ISO/IEC 17025:2017).
Accredited methods are marked with *.
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| Microbiological analysis | ||
|---|---|---|
| Group of microorganisms | Parameter | Method |
| Individual bacteria count (IBC) | Flow cytometry (BactoScan)*
Plate count* | SOP LML 7.2.09 version 11 EN ISO 4833-1:2013 |
| Pathogenic microorganisms | Enterobacteria* Listeria monocytogenes* Salmonella sp. Staphylococci Sulphite reducing Clostridia Clostridium perfringens Escherichia coli Bacillus cereus | ISO 21528-2:2017 ISO 11290-1:2017 SOP LML 7.2.44 SOP LML 7.2.53 SOP LML 7.2.52 SOP LML 7.2.51 SOP LML 7.2.47 SOP LML 7.2.50 |
| Technologically important microorganisms | Lactic acid bacteria*
Lactococci Lactobacilli Leuconostoc Thermophilic streptococci Propionibacteria Molds and yeasts Spore-forming microorganisms Lipolytic bacteria Proteolytic bacteria Heterofermentative bacteria Bacteriophages Characterization of microorganisms | SOP LML 7.2.63 version 4 SOP LML 7.2.63 SOP LML 7.2.37 SOP LML 7.2.60 SOP LML 7.2.41 SOP LML 7.2.72 SOP LML 7.2.48 SOP LML 7.2.62 SOP LML 7.2.56 SOP LML 7.2.46 SOP LML 7.2.65 By agreement By agreement |
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| Enumeration of probiotic bacteria:
Enterococcus*
Streptococcus thermophilus*
PCR detection of probiotic species*
Safety evaluation of probiotic strains Analysis of functional and |
ISO 29981 / IDF 220:2010 ISO 20128 / IDF 192:2006 SOP LML 7.2.42 version 4 (In-house method) By agreement
By agreement |