The use of stable isotopes for authentication of gadoid fish species

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) The rise of processed seafood in international trade has increased the feasibility of fish species substitution. Gadidae fish species are sold commercially as salted fish, and differences in price between fish of different species m...

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Bibliographic Details
Published in:European Food Research and Technology
Main Authors: Victoria Monteiro Oliveira, Emanuel Joaquim, Sant'Ana, Lea Silvia, Ducatti, Carlos, Denadai, Juliana Celia, de Souza Kruliski, Cibele Regina
Other Authors: Universidade Estadual Paulista (UNESP)
Format: Article in Journal/Newspaper
Language:English
Published: Springer 2011
Subjects:
Traceability
Atlantic cod
Saithe
delta(15)N
delta(13)C
atlantic cod
Online Access:http://hdl.handle.net/11449/808
https://doi.org/10.1007/s00217-010-1367-7
Description
Summary:Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) The rise of processed seafood in international trade has increased the feasibility of fish species substitution. Gadidae fish species are sold commercially as salted fish, and differences in price between fish of different species may lead to falsification. The present study addresses this falsification issue by attempting to discriminate among salted Atlantic cod and salted saithe using isotope ratio mass spectrometry (IRMS) as well as the stable isotope ratios of carbon (delta(13)C) and nitrogen (delta(15)N). delta(15)N in tissues with lower turnover rates (bone and skin) and in tissues with greater turnover rates (muscle) can be used to authenticate the species of salted fish samples when distinguishing between Atlantic cod and saithe.

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