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Compounds of Parasitic Roundworm Absorbing in the Visible Region: Target Molecules for Detection of Roundworm in Atlantic Cod

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The objective of this study was to contribute to the development of technology that will be able to replace manual operations in processing of fish fillets. Removal of parasites, black lining, remnants of skin, and bloodstains are costly and time-consuming operations to the fish processing industry. The presence of parasites in fish products tends to spoil consumers' appetites. Recent reports questioning the safety of eating cod infected with parasites might lower consumer acceptance of seafood. Presently, parasites are detected and removed manually. An average efficiency of about 75% under commercial conditions has been reported. In this study, we focused on biochemical differences between cod muscle and the prevalent anisakine nematode species (Anisakis simplex and Pseudoterranova decipiens) infecting Atlantic cod (Gadus morhua). Using reversed phase high-performance liquid chromatography equipped with a photodiode array detector, substances absorbing in the range 300 to 600 nm were identified in extracts from parasite material. These substances were not detected in extracts from cod tissue. Significant biochemical differences between cod muscle and parasite material have thus been demonstrated.

Document Type: Research Article

Affiliations: 1: Department of Marine Biotechnology, NFH, University of Tromsø, N-9037 Tromsø, Norway 2: Department of Biology, Faculty of Science, University of Tromsø, N-9037 Tromsø, Norway 3: Norwegian Fisheries and Aquaculture Research Institute Ltd., N-9291 Tromsø, Norway

Publication date: July 1, 2004

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