Here, we studied the ability of Lactobacillus pentosus 39, a BLS (Bacteriocin-like substance)-producing strain, to control the growth of Aeromonas hydrophila ATCC 14715 and Listeria monocytogenes ATCC 19117 artificially added to fresh salmon fillets at refrigeration temperatures and under simulated cold-chain break conditions. At refrigeration temperatures, Lb.pentosus 39 protective culture and its putative bacteriocin significantly reduced the A. hydrophila counts compared with the control (2.1 and 1.4 logCFU/g reductions, respectively). Similar behaviour was observed for L.monocytogenes (3.6 and 1.3 logCFU/g reductions, respectively). Under simulated cold-chain break conditions, an increase in temperature up to 30°C for 12h produced an evident increase in the development of A.hydrophila, L.monocytogenes, but also of Lb.pentosus 39, with a consequent increase in BLS production. Thus, this condition resulted in a greater reduction of both pathogens compared with samples stored at 4°C throughout the experiment (2.8 logCFU/g reduction for A.hydrophila and 5.8 logCFU/g reduction for L.monocytogenes). In samples treated with the putative bacteriocin alone, a less marked decrease was observed. Our study demonstrates the capability of Lb.pentosus 39 to control the growth of psychrotrophic bacteria in an experimental seafood model system. A similar biopreservation technology could provide more prolonged shelf life during storage of ready-to-eat seafood, ensuring safety, even under extreme conditions.

A bacteriocin-like substance produced from Lactobacillus pentosus 39 is a natural antagonist for the control of Aeromonas hydrophila and Listeria monocytogenes in fresh salmon fillets / Anacarso, Immacolata; Messi, Patrizia; Carla, Condò; Iseppi, Ramona; Bondi, Moreno; Sabia, Carla; DE NIEDERHAUSERN, Simona. - In: LEBENSMITTEL-WISSENSCHAFT + TECHNOLOGIE. - ISSN 0023-6438. - ELETTRONICO. - 55:2(2014), pp. 604-611. [10.1016/j.lwt.2013.10.012]

A bacteriocin-like substance produced from Lactobacillus pentosus 39 is a natural antagonist for the control of Aeromonas hydrophila and Listeria monocytogenes in fresh salmon fillets

ANACARSO, Immacolata;MESSI, Patrizia;Carla Condò;ISEPPI, Ramona;BONDI, Moreno;SABIA, Carla;DE NIEDERHAUSERN, Simona
2014-01-01

Abstract

Here, we studied the ability of Lactobacillus pentosus 39, a BLS (Bacteriocin-like substance)-producing strain, to control the growth of Aeromonas hydrophila ATCC 14715 and Listeria monocytogenes ATCC 19117 artificially added to fresh salmon fillets at refrigeration temperatures and under simulated cold-chain break conditions. At refrigeration temperatures, Lb.pentosus 39 protective culture and its putative bacteriocin significantly reduced the A. hydrophila counts compared with the control (2.1 and 1.4 logCFU/g reductions, respectively). Similar behaviour was observed for L.monocytogenes (3.6 and 1.3 logCFU/g reductions, respectively). Under simulated cold-chain break conditions, an increase in temperature up to 30°C for 12h produced an evident increase in the development of A.hydrophila, L.monocytogenes, but also of Lb.pentosus 39, with a consequent increase in BLS production. Thus, this condition resulted in a greater reduction of both pathogens compared with samples stored at 4°C throughout the experiment (2.8 logCFU/g reduction for A.hydrophila and 5.8 logCFU/g reduction for L.monocytogenes). In samples treated with the putative bacteriocin alone, a less marked decrease was observed. Our study demonstrates the capability of Lb.pentosus 39 to control the growth of psychrotrophic bacteria in an experimental seafood model system. A similar biopreservation technology could provide more prolonged shelf life during storage of ready-to-eat seafood, ensuring safety, even under extreme conditions.
55
2
604
611
A bacteriocin-like substance produced from Lactobacillus pentosus 39 is a natural antagonist for the control of Aeromonas hydrophila and Listeria monocytogenes in fresh salmon fillets / Anacarso, Immacolata; Messi, Patrizia; Carla, Condò; Iseppi, Ramona; Bondi, Moreno; Sabia, Carla; DE NIEDERHAUSERN, Simona. - In: LEBENSMITTEL-WISSENSCHAFT + TECHNOLOGIE. - ISSN 0023-6438. - ELETTRONICO. - 55:2(2014), pp. 604-611. [10.1016/j.lwt.2013.10.012]
Anacarso, Immacolata; Messi, Patrizia; Carla, Condò; Iseppi, Ramona; Bondi, Moreno; Sabia, Carla; DE NIEDERHAUSERN, Simona
File in questo prodotto:
File Dimensione Formato  
A bacteriocin-like substance produced from Lactobacillus pentosus 39.pdf

Accesso riservato

Tipologia: Versione pubblicata dall'editore
Dimensione 997.94 kB
Formato Adobe PDF
997.94 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/981509
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 37
  • ???jsp.display-item.citation.isi??? 31
social impact