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Studies on development of optimum depuration protocols for commercially important edible bivalves of India

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Relation http://eprints.cmfri.org.in/15833/
 
Title Studies on development of optimum depuration protocols for commercially important edible bivalves of India
 
Creator Chinnadurai, S
 
Subject Bivalves
Molluscan Fisheries
Theses
 
Description In India, since 1990s considerable changes have been taken place in diversification and production of bivalves, most significant of which is the emergence of the green mussel (Perna viridis) and backwater oyster(Crassostrea madrasensis) farming as a commercial aquaculture program. As the bivalves are filter feeding shellfish, which filter water for nutrients, they often accumulate metal contaminants and bacteria including pathogenic bacteria from the growing water. One of the main concerns for bivalve industry is the health risk associated with its consumption. In order to protect the public health we need to ensure the absence of potentially harmful microorganisms and biological toxic metals. Depuration is one of the most efficient methods for reducing the contaminants and increasing the safety of bivalves’ consumption. The most common factors which influence the degree of depuration are: depuration system, water flow rates, water treatment, temperature, salinity and duration of process. In this context, the main objectives of this thesis were to investigate and create a baseline on microbiological and heavy metals contaminations in commercially important edible bivalves of India, to compare the depuration methods on the elimination of bacterial and heavy metal loads, to optimize the depuration process parameters viz., temperature, salinity, age and body-size with respect to bacterial and heavy metal depuration, and to assess effect of heat-cool pasteurization(HCP) on bacterial quality of mussels and oysters. Both the static (fill and draw) and flow-through depuration system (FDDS and FTDS) reduces heavy metals load and the bacterial contamination significantly (p
 
Date 2020-12
 
Type Thesis
NonPeerReviewed
 
Format text
 
Language en
 
Identifier http://eprints.cmfri.org.in/15833/1/Doctoral%20Thesis_2020_S%20Chinnadurai.pdf
Chinnadurai, S (2020) Studies on development of optimum depuration protocols for commercially important edible bivalves of India. Doctoral thesis, Mangalore University, Mangalagangothri.