high viability of the surveyed strains was supported with PCR-DGGE, which confirm the retention of selected LAB strains as starter cultures in cheeses production.next, PFGE analysis showed that each single strains selected in particular cheese mixed culture, revealed unique smal PFGE pattern that could enable efficient discrimination and monitoring of the strains in industrial process.as some of the selected LAB strains are attributed as potential probiotics, cheeses could be considered as functional food.