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Title Microbial profile of cultured fishes and prawns viz a viz their spoilage and contamination
 
Names Surendran, P.K.
Thampuran, N.
Gopakumar, K.
Date Issued 1994 (iso8601)
Abstract The microbial load on freshly harvested cultured fish and prawns differed significantly from those caught in the marine environment, quantitatively as well as qualitatively. The difference in the various physiological groups of bacteria from marine., brackish and freshwater fish is reflected in their shell-life in ice. A very significant observation in the case of freshwater fishes rohu and mrigal is that while Pseudomonas species gained dominance over other bacterial species, spoiling odours were conspicuously lacking. This finding points to the possibility that unlike marine fishes, the role of bacteria in the spoilage of cultured fish is rather limited. Compared to fresh and brackish water fish, the marine fishes harboured a lesser proportion of bacteria belonging to the Enterobacteriaceae. Also the count of coliforms and faecal coliforms and were much higher in cultured prawn than fish. Greater incidence of bacteria of faecal origin is a problem of post-harvest contamination in marine fish and prawns while it is a natural contaminant in cultured species. This aspect should be taken into consideration while setting bacteriological limits for cultured fish and prawn. Since iced cultured fish stay longer in fresh condition than marine fish, there is greater scope for them to serve as raw material for production of other value added products.
Genre Article
Topic Cultured fish
Identifier Papers presented at the ninth session of the Indo-Pacific Fishery Commission Working Party on Fish Technology and Marketing, Cochin, India, 7-12 March 1994, 1-12