Abstract:
The aim of this work is the in vitro evaluation of the survival of two lactic strains, the strain S1
isolated from the marine fish Sardina pilchardus and the probiotic strain Bb12 under simulated
digestive conditions, namely: saliva, acidity, gastric juice (pepsin 0.3% w / v), pancreatin 0.1%, and
the presence of bile salts with 0.3%.The results provided by both the two strains S1 and Bb12 under
different digestive conditions are interesting. The tested lactic acid bacteria has shown a remarquable
resistance against the hostile conditions of the gastrointestinal tract: acidity, pepsin, bile salts, the S1
strain has a good resistance to these digestive conditions by a viability rate greater than 100%
compared to the Bb12 strain.
