Abstract
Enterococcus faecalis KP, a bacteriocin‐producing strain, was identified using 16S rRNA gene sequence homology (99%). Enterocin KP from E. faecalis KP was sensitive to papain and ß‐mercaptoethanol, but resistant to trypsin, pepsin, lipase, catalase, α‐amylase, organic solvents, detergents, EDTA and heat treatment (90°C/30 min). It was active at a wide pH range (2.0–8.0) and produced at maximum level in de Mann Rogosa Sharpe broth at 32°C with an inoculum amount of 0.1–1.0% and an initial pH of 5.5–7.5. It was active against some Gram‐positive bacteria, including Listeria monocytogenes. It showed bactericidal activity against L. monocytogenes and its molecular weight was approximately 5.8 kDa.
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