Abstract
Microbiological contamination of bivalve molluscs is one of the major concerns inherent to food safety, thus depuration is frequently needed to assure food safety levels associated with their consumption. Salinity plays an important role in the metabolic activity of bivalves and as such can influence their depuration capacity. This study aimed to evaluate the effect of salinity (25, 30, 35 and 40) on the efficiency of the depuration process, along with the quality and shelf-life of Crassostrea gigas. For this, a 24-h depuration was carried out, followed by a storage period at 5 ± 1 °C for six days. Microbiological analyses and biochemical parameters related to oxidative stress response were analysed. Escherichia coli load was reduced in only 24 h, disregarding the salinity of the system. After the shelf-life period, the activity of the antioxidant defences at salinities 35 and 40 is higher but is still not sufficient to avoid lipid peroxidation. Over time, there is a decrease in oyster metabolism probably due to being chilled and to the action of exposure to air. In sum, this study suggests salinities between 25 and 30 as preferential for the depuration process of C. gigas and subsequent quality during shelf-life.
Funder
Fundação para a Ciência e a Tecnologia
MAR2020
Subject
Water Science and Technology,Aquatic Science,Geography, Planning and Development,Biochemistry
Reference67 articles.
1. The State of World Fisheries and Aquaculture 2020,2020
2. Seafood quality and safety;Soares;Inst. Adolfo Lutz,2012
3. Sanitary-Hygienic Procedures for Industry and Seafood Inspectors: Recommendations;Pérez,2007
4. Assessment and Management of Seafood Safety and Quality;Huss,2003
5. Consumer valuation of safety-labeled free-range chicken: results of a field experiment in Hanoi
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