STUDY OF BACTERIOCINS PRODUCED BY THE STRAIN ENTEROCOCCUS FAECALIS T23 ISOLATED FROM IRANIAN CHEESE
Abstract
We have partially characterized the bacteriocin activity of the strain Enterococcus faecalis T23. The antimicrobial activity of this strain was determined against Listeria monocytogenes, Salmonella typhimurium and closely related Lactobacilli strains. Treatment with different enzymes revealed that the active substance has a protein nature. PCR amplification resulted in detection of two bacteriocin genes: entB and entA. Bacteriocins of the studied strain were heat stable and active over a wide range of pH (3-10). Triton X-20, Triton X-80, Triton X-100, в-mercaptoetanol, Na-EDTA, SDS and NaCl did not influence the bacteriocin activity.
About the Authors
T. . Mirhadi Zadi
Baku State University
Russian Federation
Russian Federation
N. . Abdullayeva
Baku State University
Russian Federation
Russian Federation
A. . Quliyev
Baku State University
Russian Federation
Russian Federation
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