Volatile sulphur compounds-forming abilities of lactic acid bacteria: C-S lyase activities

► Volatile sulphur compounds (VSC)-forming abilities of lactic acid bacteria are tested. ► C-S lyase enzymatic activities are determined using different approaches. ► VSC-forming abilities are strain-specific and correlate with the C-S lyase activities. ► It is highlighted the flavour forming potential of the S. thermophilus STY-31. ► Methionine auxotrophy of LAB strains is not associated with its VSC-forming abilities.