The strains were inoculated at 3% (

The strains were inoculated at 3% (v/v) to a standard
concentration of 6.0 log CFU/ml in 300 ml of pasteurized
formulations cited in Table 2. The ideal fermentation period
of 10 h at 37 °C in anaerobic conditions was determined
after a set of longer fermentation tests (data not shown).