Response of Leuconostoc strains against technological stress factors: Growth performance and volatile profiles
- Cicotello, Joaquín
- Wolf, Irma Veronica
- D'Angelo, Luisa
- Guglielmotti, Daniela Marta
- Quiberoni, Andrea del Lujan
- Suárez, Viviana Beatriz
DOIAbstract
The ability of twelve strains belonging to three Leuconostoc species (Leuconostoc mesenteroides, Leuconostoc lactis and Leuconostoc pseudomesenteroides) to grow under diverse sub-lethal technological stress conditions (cold, acidic, alkaline and osmotic) was evaluated in MRS broth. Two strains, Leuconostoc lactis Ln N6 and Leuconostoc mesenteroides Ln MB7, were selected based on their growth under sub-lethal conditions, and volatile profiles in RSM (reconstituted skim milk) at optimal and under stress conditions were analyzed. Growth rates under sub-lethal conditions were strain- and not species-dependent. Volatilomes obtained from the two strains studied were rather diverse. Particularly, Ln N6 (Ln. lactis) produced more ethanol and acetic...
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