Collection content

Microbial group/s: Bacteria, fungi, yeast
Total number of strains: 1100
Taxa (number of strains):
Lactic acid bacteria
Acetic bacteria
Foodborne pathogenic bacteria
Food spoiling bacteria
Food spoiling fungi
Foodborne pathogenic fungi
Isolation source/Origin: Food in general
Preservation method: Glycerol -80 °C
Information management: Excel
Characterization level:
Species identification by rRNA 16S gene sequence
Biotechnological properties (not all)
Functional properties (not all)



microorganisms present in the food industry
Industrial Microbiology: At CNTA we continuously maintain and incorporate new strains into our collection of lactic bacteria, yeasts and fungi isolated from various sources, mostly food, capable of providing various nutritional and technological functionalities (antifungal, texturizing, antibacterial, antioxidants...) through its metabolic control. The optimization of fermentative processes is another area of research that allows the development of methodologies to improve yields and directed metabolism during microbial growth.
New Conservation Strategies and Technologies: We work on the development and application of physical, thermal and non-thermal conservation technologies, such as high hydrostatic pressure, high pressure in combination with temperature, radiofrequency, high voltage electrical pulses, high power ultrasound and cold plasma, as well as research into new strategies based on chemical agents such as the use of protective cultures, bioactive peptides or natural preservatives.

Quality Certifications

-Accredited since 1997 by ENAC (National Accreditation Entity) according to UNE-EN-ISO / IEC 17025
-Certified according to UNE-EN-ISO 9001: 2015 and UNE-EN-ISO 14001: 2015 standards

Brief historical review

The CNTA collection is 15 years old. It is a relatively young collection. Many of the strains come from research projects developed under contract by partner companies or customers of CNTA and their use is restricted (partially or totally). Others come from public projects and the property belongs to CNTA.