title: Survival of Vibrio parahaemolyticus and Aeromonas hydrophila in sea bream (Sparus aurata) fillets packaged under enriched CO(2) modified atmospheres.
abstract: The ability to survive of two pathogens (Vibrio parahaemolyticus and Aeromonas hydrophila) spread over sea bream fillets packaged under different modified atmospheres (MAPs) was studied at 0°C and 4°C under refrigerated storage. The atmospheres used were 60% CO2/40% N2, 70% CO2/30% N2 and 80% CO2/20% N2 and a control batch packaged in air. Head space gas analyses, microbial counts and confirming test of pathogenic bacteria were carried out during 16days. The results obtained showed that all the modified atmospheres studied were effective to reduce the microbial load of sea bream fillets when compared with air packaged samples although small differences were found among MAPs. Temperature storage was the main factor to reduce microbial growth. V. parahaemolyticus was unable to grow at both temperatures, 0°C and 4°C (except air batches) while A. hydrophila showed significant growth at 4°C and microbial inactivation at 0°C.
authors.affiliation: Department of Animal Production and Food Science, Laboratory of Science and Technology of Meat and Fish, Faculty of Veterinary Sciences, University of Zaragoza, Miguel Servet 177, 50013 Zaragoza, Spain.
authors.forename: Laura
authors.initials: L
authors.lastname: Provincial
authors.forename: Elena
authors.initials: E
authors.lastname: Guillén
authors.forename: Verónica
authors.initials: V
authors.lastname: Alonso
authors.forename: Mario
authors.initials: M
authors.lastname: Gil
authors.forename: Pedro
authors.initials: P
authors.lastname: Roncalés
authors.forename: José A
authors.initials: JA
authors.lastname: Beltrán
mesh_terms: D016980:Aeromonas hydrophila / Q000187:drug effects* / Q000502:physiology; D000818:Animals; D058491:Bacterial Load; D002245:Carbon Dioxide / Q000494:pharmacology*; D005516:Food Microbiology; D018857:Food Packaging / Q000379:methods*; D005520:Food Preservatives / Q000494:pharmacology; D008460:Meat / Q000382:microbiology*; D050296:Microbial Viability / Q000187:drug effects; D021541:Sea Bream / Q000382:microbiology*; D013696:Temperature; D013997:Time Factors; D014736:Vibrio parahaemolyticus / Q000187:drug effects* / Q000502:physiology
chemical_list: D005520:Food Preservatives; D002245:Carbon Dioxide
keywords: Aeromonas; CO(2); Modified atmosphere packaging; Sea bream; Vibrio