title: Antibacterial activity of bacteriocin-like substance P34 on Listeria monocytogenes in chicken sausage.
abstract: 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 10(2) 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.
authors.affiliation: Laboratório de Bioquímica e Microbiologia Aplicada, Departamento de Ciência de Alimentos, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
authors.forename: Voltaire
authors.initials: V
authors.lastname: Sant'Anna
authors.affiliation: Laboratório de Bioquímica e Microbiologia Aplicada, Departamento de Ciência de Alimentos, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
authors.forename: Deoni A F
authors.initials: DA
authors.lastname: Quadros
authors.affiliation: Laboratório de Inspeção de Produtos de Origem de Animal, Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas, RS, Brazil.
authors.forename: Amanda S
authors.initials: AS
authors.lastname: Motta
authors.affiliation: Laboratório de Bioquímica e Microbiologia Aplicada, Departamento de Ciência de Alimentos, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
authors.forename: Adriano
authors.initials: A
authors.lastname: Brandelli
mesh_terms: D000818:Animals; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D002417:Cattle; D002645:Chickens; D005516:Food Microbiology; D005520:Food Preservatives / Q000494:pharmacology; D008089:Listeria monocytogenes / Q000187:drug effects* / Q000254:growth & development; D009561:Nisin / Q000494:pharmacology; D010455:Peptides / Q000494:pharmacology*; D013696:Temperature; D013997:Time Factors
chemical_list: D000900:Anti-Bacterial Agents; C549460:BLS P34 peptide, Bacillus; D005520:Food Preservatives; D010455:Peptides; D009561:Nisin
keywords: Listeria monocytogenes; bacteriocin; biopreservation; chilled chicken sausage