Risk reduction of potential Vibrio para­haemolyticus transfer via blue mussels ­(Mytilus edulis L.) into the consumer in the Baltic Sea Region.

Harbach, Harvey and Palm, Harry (2017) Risk reduction of potential Vibrio para­haemolyticus transfer via blue mussels ­(Mytilus edulis L.) into the consumer in the Baltic Sea Region. Journal of food safety and food quality, 68 . pp. 106-111. DOI 10.2376/0003-925X-68-106.

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Abstract

Blue mussels (Bivalvia) potentially accumulate Vibrio spp. and can transfer these ­pathogens into the consumer. Earlier studies dealt with the existence of V. para­haemolyticus in natural environments but no examinations under laboratory con­ditions exist on the influence of temperature onto accumulation and persistence in blue mussels under low salinity environments. The aim of this study was to design a reliable and practicable methodology to examine the presence of V. parahaemo­lyticus in blue mussels from the Baltic Sea and possibilities for decontamination. A static design was chosen, estimating the influence of temperature onto contami­nation and clearance kinetics. Blue mussels accumulated a similar amount of V. parahaemolyticus during 24 h with no significant difference at the chosen temperatures of 5, 10 and 20 °C. After transfer into clearance tanks, the numbers of bacteria ­decreased in all mussels for 72 h, but the amounts differed significantly between 5 °C to 10 °C and 10 °C to 20 °C. Highest reduction from initial 4.84x107 cfu/mg to 1.16x105 cfu/mg (72 h) was observed at 10 °C (about 0.2 % of initial value). The Baltic Sea offers opportunities for blue mussel production, especially in the context of ­Integrated Multi Trophic Aquaculture to reduce environmental impact of fish aquaculture. In the case of mussel infection, a clearance bath for 72 h under 10 °C can prevent possible transfer of V. parahaemolyticus into the consumer.

Document Type: Article
Research affiliation: OceanRep > Leibniz-Institut für Meereswissenschaften
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.2376/0003-925X-68-106
ISSN: 0003-925X
Date Deposited: 24 May 2019 07:34
Last Modified: 02 Jan 2020 12:30
URI: http://oceanrep.geomar.de/id/eprint/46801

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