Results: The antimicrobial activity of 24 h as well as 48 fermented kephir, fresh or after 7 days preservation
at 4e8 C was similar and observed against B. subtilis, S. aureus, E. coli, E. faecalis and S. enteritidis.
For E. coli, E. faecalis and S. enteritidis the antimicrobial activity was superior to both tested antibiotics and
for B. subtilis and S. aureus to one antibiotic. The tested products exhibited no activity against
P. aeruginosa and C. albicans