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Mitochondrial Cytochrome b DNA Sequence Variations: An Approach to Fish Species Identification in Processed Fish Products

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Abstract:

The identification of fish species in food products is problematic because morphological features of the fish are partially or completely lost during processing. It is important to determine fish origin because of the increasing international seafood trade and because European Community Regulation 104/2000 requires that the products be labeled correctly. Sequence analysis of PCR products from a conserved region of the cytochrome b gene was used to identity fish species belonging to the families Gadidae and Merluccidae in 18 different processed fish products. This method allowed the identification of fish species in all samples. Fish in all of the examined products belonged to these two families, with the exception of one sample of smoked baccalà (salt cod), which was not included in the Gadidae cluster.

Document Type: Short Communication

Affiliations: 1: Dipartimento di Scienze Zootecniche e Ispezione degli Alimenti, Sezione Ispezione, Università degli Studi di Napoli, Federico II, Via Delpino 1, Napoli 80137, Italy 2: Dipartimento di Biologia Vegetale, Università degli Studi di Napoli, Federico II, Via Foria 223, Napoli 80137, Italy

Publication date: February 1, 2005

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