Abstract

It was aimed to isolate, purify and determine host ranges of lytic phages that infect Listeria monocytogenes in this study. Out of 68 samples screened, 4 positive isolates were recovered from feces, food processing waste water, fisheries waste water, and fish samples. Recovery status of the L. monocytogenes phage was found to be 5.88%. To determine host ranges of phages, soft agar overlay plaque assay was used. While eleven L. monocytogenes strains showed resistant to all four isolated phages, 24 strains were sensitive. The plaque sizes of the 4 phages against 24 L. monocytogenes strains ranged from 0.4 and 2.6 mm. None of the phages had identical host ranges.

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