Effect of some conditions on the viability and the cell release of encapsulated lactic acid bacteria

Abstract

Our study has focused on the affirmation of the protective effect of microencapsulation with sodium alginate matrix 2% of five strains of lactic acid bacteria isolated from different origins, the kinetic of cell release at acidic pH2 of L.plantarum, L.pentosus, L.cellubiosus, Enterococcus faecalis, L.plantarum, cells were not detectable, the results showed that all the strains released when exposed to 0.3% bile salts.the survival rate under simulated gastric conditions at pH2.0 during 2h was evaluated , encapsulated cells gave better results then free ones heat treatment gave different results at 25,40°C,but at 50,60°C with low resistance of the free cells..