Collection content

Microbial group/s​: Bacteria
Total number of strains​: 500 (isolates)
Taxa (number of strains)​:
B. animalis subsp. lactis (37)
B. adolescentis (70)
B. bifidum (30)
B. longum (47)
B. dentium (6)
B. pseudocatenulatum (17)
L. plantarum (2)
L. gasseri (12)
L. delbrueckii (2)
L. mucosae (7)
L. vaginalis (3)
Ruminoccocus spp. (6)
Rothia spp. (6)
Propionibacterium spp. (12)
Enterococcus spp. (3)
Clostridium spp. (6)
Bacteroides spp. (8)
Eubacterium spp. (3)
Streptococcus spp. (aprox. 90)
Staphylococcus spp. (aprox. 15)
Otros anaerobios (aprox. 208)
Isolation source/Origin​:
-Human (feces; content and biopsy of duodenum, ileum and colon; bile)
-Adapted in the laboratory to conditions of technological stress
Preservation method​: Glycerol -80°C
Information management​: Excel
Characterization level​:
- species identification by 16S (500 isolates)
- biotechnological properties (approx. 50 isolates)


Not offered


Key words:
probiotics, functional cultures
General objective: contribute to the generation of knowledge about the functions performed by beneficial intestinal microorganisms and those present in food in relation to human health.

Current Research Lines

Line 1. Functionality of microorganisms and probiotic foods

Line 2. Interactions of intestinal microorganisms with the host and with technological challenges

Line 3. Obtaining, preserving, and cultivating fecal microbiota

Line 4. The microbiota in different physiological and pathological states: dysbiosis, microbial markers of disease and strategies to modulate the microbiota

Line 5. Bioinformatics tools for the study of the functionality of microbiota and probiotics.

Quality Certifications

No Quality Certification

Brief historical review

The group's bacteria collection began in 2016 as part of several projects funded in public research calls. The collection is constantly growing and we are currently including isolates of food origin.