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Title: Bacteriophages against Serratia as Fish Spoilage Control Technology
Authors: Hernandez, Igor
Abstract: Bacteria of the genus Serratia, mainly S. proteamaculans and S. fonticola, are important spoilage agents in Atlantic horse mackerel (Trachurus trachurus). In order to evaluate whether bacteriophages against Serratia could delay the spoilage process, 11 viral strains active against this genus were isolated from food and best candidate was applied to fresh mackerel filets. All the phages belong to the Siphoviridae and Podoviridae families and were active at multiplicity of infection (MOI) levels below 1: 1 in Long \& Hammer broth. The ability of phage AZT6 to control Serratia populations in real food was tested in Atlantic horse mackerel extract and applied to fresh mackerel filets. Treatment with high phage concentration (MOI 350: 1, initial Serratia population 3.9 +/- 0.3 Log cfu/g) can reduce the Serratia populations up to 90\% during fish storage (a maximum of 6 days) at low temperatures (6 degrees C). Bacterial inhibition was dependent on the bacteriophage dosage, and MOI of 10: 1 or lower did not significantly affect the Serratia populations.
Issue Date: 2017
Type: Article
Language: English
DOI: 10.3389/fmicb.2017.00449
ISSN: 1664-302X
Funder: Basque Government (Department of the Environment, Regional Planning, Agriculture and Fisheries)
LIFE C program [LIFE13 ENV/ES/001048 ENVIPHAGE]
Appears in Publication types:Artículos científicos

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