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https://hdl.handle.net/10953/2020
Title: | Inactivation of Listeria in Foods Packed in Films Activated with Enterocin AS-48 plus Thymol Singly or in Combination with High-Hydrostatic Pressure Treatment |
Authors: | Ortega Blázquez, Irene Grande Burgos, María José Pérez Pulido, Rubén Gálvez, Antonio Lucas, Rosario |
Abstract: | The aim of the present study was to determine the efficacy of films activated with enterocin AS-48 plus thymol singly, or in combination with high-hydrostatic pressure (HHP) on the inactivation of Listeria innocua in sea bream fillets and in fruit puree stored under refrigeration for 10 days. L. innocua proliferated in control fish fillets during storage. The activated film reduced viable Listeria counts in fillets by 1.76 log cycles and prevented growth of survivors until mid-storage. Application of HHP treatment to fillets packed in films without antimicrobials reduced Listeria counts by 1.83 log cycles, but did not prevent the growth of survivors during storage. The combined treatment reduced viable counts by 1.88 log cycles and delayed growth of survivors during the whole storage period. L. innocua survived in puree during storage. The activated film reduced Listeria counts by 1.80 and 2.0 log cycles at days 0 and 3. After that point, Listeria were below the detection limit. No viable Listeria were detected in the purees after application of HHP treatment singly, or in combination with the activated film. Results from the study indicate that the efficacy of activated films against Listeria is markedly influenced by the food type. |
Keywords: | Listeria activated film bacteriocin thymol high-hydrostatic pressure fish fillets fruit puree |
Issue Date: | 18-Nov-2017 |
metadata.dc.description.sponsorship: | This work was supported by research grant UJA2014/06/25 and the University of Jaen’s Plan de Apoyo a la Investigación (research structure AGR230). We also acknowledge the Campus de Excelencia Internacional Agroalimentario CeiA3. |
Publisher: | MDPI |
Citation: | Ortega Blázquez, I.; Grande Burgos, M.J.; Pérez-Pulido, R.; Gálvez, A.; Lucas, R. Inactivation of Listeria in Foods Packed in Films Activated with Enterocin AS-48 plus Thymol Singly or in Combination with High-Hydrostatic Pressure Treatment. Coatings 2017, 7, 204. https://doi.org/10.3390/coatings7110204 |
Appears in Collections: | DCS-Artículos |
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Inactivation of Listeria in Foods Packed in Films Activated with Enterocin AS-48 plus Thymol Singly or in Combination with High-Hydrostatic Pressure Treatment.pdf | artículo | 217,65 kB | Adobe PDF | View/Open |
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