Five pure commercial starter freeze-dried cultures (Danisco,
Sassenage, France) were used in this study, specifically the yoghurt
microorganisms S. thermophilus TA040 (St) and L. delbrueckii subsp.
bulgaricus LB340, from here onwards called L. bulgaricus (Lb), and
the probiotics L. acidophilus LAC4 (La), L. rhamnosus LBA (Lr) and
B. animalis subsp. lactis BL 04, from here onwards called B. lactis
(Bl).