Means (n = 3) ± standard deviation with different letters in the same column are significantly different (P < 0.05).
Abbreviations: Vmax = maximum rate of acidification; Tv max = time to reach Vmax;; PA, PB and PC = L. plantarum A6 in co-culture with L. acidophilus L10, B. lactis B94 and L. casei L26, respectively; FA, FB and FC = L. fermentum OgiE1 in co-culture with L. acidophilus L10, B. lactis B94 and L. casei L26, respectively.