Antibacterial activity of bacteriocin-like substance P34 on Listeria monocytogenes in chicken sausage

AUTOR(ES)

Sant'Anna, Voltaire, Quadros, Deoni A.F., Motta, Amanda S., Brandelli, Adriano

FONTE

Braz. J. Microbiol.

DATA DE PUBLICAÇÃO

24/01/2014

RESUMO

The antimicrobial activity of the bacteriocin-like substance (BLS) P34 against Listeria monocytogenes was investigated in chicken sausage. The BLS was applied to chicken sausages (256 AU g-1) previously inoculated with a suspension of 10² cfu g-1 of L. monocytogenes. BLS P34 inhibited the indicator microorganism in situ in all incubation times for up to 10 days at 5 °C. The effectiveness of BLS P34 was increased when it was added in combination with nisin. The bacteriocin was also tested in natural eatable natural bovine wrapping (salty semi-dried tripe) against the same indicator microorganism, also showing inhibitory capability in vitro. BLS P34 showed potential to control L. monocytogenes in refrigerated meat products.

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