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Titre du document / Document title

Heavy metals content of canned tuna fish

Auteur(s) / Author(s)

EMAMI KHANSARI F. (1 2) ; GHAZI-KHANSARI M. (1) ; ABDOLLAHI M. (3) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, P.O. Box 13145-784, Tehran, IRAN, REPUBLIQUE ISLAMIQUE D'
(2) General Department of Standard and Industrial Research, Food and Agriculture Laboratory, Tehran, IRAN, REPUBLIQUE ISLAMIQUE D'
(3) Department of Toxicology, School of Pharmacy. Tehran University of Medical Sciences, Tehran, IRAN, REPUBLIQUE ISLAMIQUE D'

Résumé / Abstract

In this study, five heavy metals in canned tuna fish were determined after digestion by the Association of Official Analytical Chemists methods. Mercury and arsenic levels in canned tuna fish were determined by hydride generation atomic absorption spectrophotometery while cadmium and lead levels were determined by graphite tube atomic absorption spectrophotometery and tin levels were determined by flame atomic absorption spectrophotometery. The metal contents, expressed in μg g-1 wet weight, varied from 0.043 to 0.253 with an average value of 0.117 for mercury, from 0.0369 to 0.2618 with an average value of 0.128 for arsenic, from 0.0046 to 0.0720 with an average value of 0.0223 for cadmium, from 0.0126 to. 0726 with an average value of 0.0366 for lead and non detectable for tin. Several samples were spiked with known amounts of metals. Recoveries of the metals were in the range of 91.7 ± 2.89-99.3 ± 4.03%. The results of this study indicate that tuna fish from the Persian gulf area of Iran have concentrations well below the permissible FAO/WHO levels for these toxic metals. Their contribution to the body burden can be therefore considered negligible and the fish seem to be safe for human consumption.

Revue / Journal Title

Food chemistry    ISSN  0308-8146   CODEN FOCHDJ 

Source / Source

2005, vol. 93, no2, pp. 293-296 [4 page(s) (article)] (24 ref.)

Langue / Language

Anglais

Editeur / Publisher

Elsevier, Kidlington, ROYAUME-UNI  (1976) (Revue)

Mots-clés anglais / English Keywords

Tuna (Tunny fish)

;

Heavy metal

;

Mots-clés français / French Keywords

Thon

;

Métal lourd

;

Mots-clés espagnols / Spanish Keywords

Atún

;

Metal pesado

;

Localisation / Location

INIST-CNRS, Cote INIST : 17810, 35400012473428.0140

Nº notice refdoc (ud4) : 16825889



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