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Toxicon. 2009 Nov;54(6):891-4. doi: 10.1016/j.toxicon.2009.06.021. Epub 2009 Jun 26.

Saxitoxins accumulation by freshwater tilapia (Oreochromis niloticus) for human consumption.

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1
Departamento de Agroindústria, Alimentos e Nutrição, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, Av. Pádua Dias 11, 13418 900 Piracicaba, SP, Brazil.

Abstract

The accumulation of saxitoxins (STXs) in fish from freshwater aquaculture was investigated for the first time in the present study. Cyanotoxins have been monitored in liver and muscle samples of Oreochromis niloticus by chromatographic methods, both before and after the depuration process. The results show that tilapia can accumulate STXs. Our findings suggest that depuration with clean water is an alternative process to eliminate STXs from fish and, therefore, improve the safety of tilapia for consumers.

PMID:
19560484
DOI:
10.1016/j.toxicon.2009.06.021
[Indexed for MEDLINE]
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