Culture Collection of Dairy and Bakery Contaminants (CCDBC), (Milcom, a. s., Tábor)
The Collection of Dairy and Bakery Contaminants (CCDBC) was established in 2019 with the support of the Ministry of Agriculture of the Czech Republic as part of the National Program for the Conservation and Utilization of Genetic Resources of Plants, Animals and Microorganisms Important for Nutrition and Agriculture (NPGZM). The collection is located at the Research Institute of Dairy in Tábor (MILCOM a.s. company premises) and deals with the preservation of strains of bacteria, yeasts and filamentous fungi contaminating dairy and bakery products, which due to their properties have the potential for use in further research.
In the first year (2019), about 50 contaminating strains isolated from dairy products and dairies were included in the collection. Over the next two years, the collection expanded by another 29 contaminating strains. In the future, the collection will be expanded by isolates from bakery operations, especially from various yeasts, in accordance with the solution of NAZV projects, which are focused on antifungal activity and functional and technological properties of microorganisms in dairy products and yeasts.
• Collection characteristics, numbers of cultures
In 2021, 37 strains of filamenous fungi and 19 strains of yeast isolated mainly from cheese, salt baths and fallout in dairies were deposited in the collection.
Filamentous fungi play an important role in the production of mold cheeses in the dairy. These are practically represented by only a few species - Penicillium camemberti, P. roqueforti and P. nalgiovense. However, most filamentous fungi in dairy and bakery are serious and undesirable contaminants (eg the whole spectrum of the genera Penicillium, Cladosporium, Alternaria, Fusarium and many others). They are also responsible for their visible and invisible defects - odor, discoloration, toxin production.
Representatives of deposited yeasts are Debaryomyces hansenii, Geotrichum candidum, Trichosporon sp., species of the genus Candida and others.
• Strain storage methods
The CCDBC collection preserves strains of fungal microorganisms in two ways:
cryopreservation - recovery interval is 5 years
slant nutrient agar - reinoculated once a year
• Quality systems, internal standards, good laboratory practice
The CCDBC has fully taken over the ISO 9001 quality management system, which was introduced at the workplace where the collection is located, in 2002 as part of the Collection of dairy microorganisms - Laktoflora®. The activities of the collection are further ensured in accordance with the internal guidelines. All storage methods are described in managed documents.
• Services
all the strains of the CCDBC collection are provided free of charge for the teaching and research institution in accordance with the national program (NPGZM)
the service of isolation, cultivation and identification of strains is provided
professional advisory and consulting activities
• Inclusion in national and international organizations
The recently established CCDBC collection is part of the National Program for the Conservation and Utilization of Genetic Resources of Plants, Animals and Microorganisms Important for Food and Agriculture (NPGZM). It is not yet integrated into any international system.
Contact:
Culture Collection of Dairy and Bakery Contaminants
MILCOM a.s., Soběslavská 841, 390 02 Tábor, Czech Republic
Tel.: +420 733 591 080, www.ccdm.cz
Staff:
Ing. Miloslava Kavková, Ph.D., the head of the collection CCDBC
m.kavkova@vum-tabor.cz
+420 723 679 012
Ing. Zuzana Dlouhá, the curator of the collection CCDBC
z.dlouha@vum-tabor.cz
+420 733 591 080
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 Biohazard flow box
 Cryopreservation in the freezer
 Yeast deposition on agar media
 Microscope Olympus BX-43
 Morphology of filamentous fungi (P. crustosum, CYA, 25 °C, 7 days)
 Morphology of filamentous fungi (P. paneum, CYA, 25 °C, 7 days)
 Thermal cycler Biometra
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