Lactic acid bacteria
Lactococcus lactis, Lactococcus lactis subsp. lactis biovar diacetylactis, Lactococcus lactis subsp. cremoris, Streptococcus thermophilus, Pedicoccus acidilactici and Leuconostoc sp.
Morphology: Cocci
Gram: Positive
Catalase: Negative
Respiratory system: Facultative anaerobe
Tests to identify the genus
Respiratory system: Facultative anaerobe
Tests to identify the genus
- Growth at 10° C and 45° C - Elliker/M17 broth
- NaCl resistance: 2, 4, 6 % NaCl
- CO2 production - MRS medium with bell
Tests to identify the species
- Acidification and reduction test
- Citratase test
- Arginine dihydrolase test - Moeller medium
- Sugar fermentations: glucose, sucrose, ribose, xylose, maltose, lactose
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