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首页> 外文期刊>Journal of environmental science and health >Selenium, total mercury and methylmercury in sardine: Study of molar ratio and protective effect on the diet
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Selenium, total mercury and methylmercury in sardine: Study of molar ratio and protective effect on the diet

机译:沙丁鱼中的硒,总汞和甲基汞:摩尔比和对饮食的保护作用研究

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摘要

The purpose of this work was to evaluate the risk-benefit associated with canned sardine consumption, considering the selenium, the mercury and the methylmercury contents and the Se:Hg molar ratio and the Se-health benefit value (HBV) index. In this study, 63 canned sardine samples were purchased worldwide and for the determination of selenium and mercury species, the inductively coupled plasma optical emission spectrometry and thermal decomposition and amalgamation atomic absorption spectrometry were employed. The mean results obtained for the Brazilian samples varied between 12.6 and 65.5 mu g kg(-1) for Hg; 3.7 and 45.4 mu g kg(-1) for methylmercury; 310 and 1370 mu g kg(-1) for Se. The MeHg/Hg ratio showed that the most toxic forms of Hg (MeHg) is predominant in 52 and 39% of the Brazilian samples conserved in tomato sauce and in oil, respectively. Nevertheless, the Se-HBV index and the Hg:Se and Se:Hg molar ratios indicated that the selenium content in canned sardine samples is enough to provide a protective effect on the Hg species.
机译:这项工作的目的是通过考虑硒,汞和甲基汞的含量以及Se:Hg摩尔比和Se-健康效益值(HBV)指数,来评估与罐装沙丁鱼食用相关的风险效益。在这项研究中,在全球范围内购买了63罐沙丁鱼罐头样品,并采用电感耦合等离子体发射光谱法,热分解和汞齐原子吸收光谱法测定硒和汞种类。巴西样品的平均汞含量为12.6至65.5μg kg(-1)。甲基汞<3.7和45.4μg kg(-1);硒的含量为310和1370μg kg(-1)。 MeHg / Hg比值表明,分别以52%和39%的巴西样品保存在番茄酱和油中的Hg(MeHg)毒性最高。尽管如此,Se-HBV指数以及Hg:Se和Se:Hg摩尔比表明,罐装沙丁鱼样品中的硒含量足以对Hg物种提供保护作用。

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