Determinação de elementos minerais e traços por ativação neutrônica, em refeições servidas no restaurante da Faculdade de Saúde Pública/USP

Fávaro, D. I. T.; Afonso, Cláudia; Vasconcellos, M. B. A.; Cozzolino, Sílvia Maria Franciscato

doi:10.1590/s0101-20612000000200009

Cited by 10 publications

(15 citation statements)

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“…That study could be considered an turning-point in Nuclear Analytical Applications in Brazil, giving pace for a new generation of studies in Life Sciences. The aim of that study from 2000 was to assessing the nutritional adequacy of diets served to University students related to essential elements and also monitoring for some toxic elements [6].…”

Section: Neutron Activation Analysis In Brazil In the New Millenniummentioning

confidence: 99%

Nuclear Analytical Techniques in Animal Sciences: New Approaches and Outcomes

Avelar¹,

Ferreira²,

Menezes³

2013

Imaging and Radioanalytical Techniques in Interdisciplinary Research - Fundamentals and Cutting Edge Applications

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Section: Neutron Activation Analysis In Brazil In the New Millenniummentioning

confidence: 99%

Nuclear Analytical Techniques in Animal Sciences: New Approaches and Outcomes

Avelar¹,

Ferreira²,

Menezes³

2013

Imaging and Radioanalytical Techniques in Interdisciplinary Research - Fundamentals and Cutting Edge Applications

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“…The precision and accuracy of the method were verified by measuring the reference materials Orchard Leaves (OL) (NIST SRM 1571), Tomato Leaves (TL) (NIST SRM 1573 a ) and Oyster Tissue (OT) (NIST SRM 1566b). Details of the analytical methodology have already been described in a previous paper (Favaro et al, 2000).…”

Section: Inaa Determination For Micronutrientsmentioning

confidence: 99%

Cooking process evaluation on mercury content in fish

et al. 2010

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This study evaluated different cooking processes (roasted, cooked and fried) on total mercury (Hg) content in fish species most consumed by Manaus residents and surrounding communities, Amazon region. The results obtained for total Hg in natura and after the three types of preparation (roasted, cooked and fried) for 12 fish species showed a significant Hg concentration variation. In the present study the cooked and frying processes resulted in higher Hg losses for Pacu, Pescada, Jaraqui, Curimatã, Surubin and Aruanã fish species, most of them presenting detritivorous and carnivorous feeding habits. The higher Hg losses in the roasting process occurred for Sardinha, Aracu, Tucunaré, Pirapitinga, Branquinha and Tambaqui fish species, most of them being omnivorous and herbivorous fish species. Some micronutrients (Ca, Fe, K, Na, Se and Zn) in fish species in natura were also determined in order to perform a nutritional evaluation regarding these micronutrients. KEYWORDS: mercury; cooking processes; fish; nutrition; micronutrients. Influência do processo de cocção no teor de mercúrio em peixes RESUMOO presente estudo avaliou três diferentes processos de cocção (assado, cozido e frito) e sua relação com o teor de mercúrio total (Hg) em espécies de peixes comumente consumidas pela população de Manaus e comunidades vizinhas da região Amazônica. Os resultados obtidos para Hg total in natura (antes) e após os três tipos de preparo (assado, cozido e frito) para as 12 espécies de peixes selecionadas apresentaram uma significativa variação na concentração. Os processos de cozimento e fritura resultaram em maiores perdas de Hg para as espécies Pacu, Pescada, Jaraqui, Curimatã, Surubin e Aruanã sendo a maioria delas classificadas como espécies detritívoras e carnívoras. As maiores perdas de Hg no processo assado ocorreram para as espécies Sardinha, Aracu, Tucunaré, Pirapitinga, Branquinha e Tambaqui, a maioria classificadas como espécies omnivoras e herbivoras. Alguns micronutrientes (Ca, Fe, K, Na, Se e Zn) nas espécies de peixes in natura foram determinados com o objetivo de fazer uma avaliação nutricional em relação a esses constituintes.

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“…Fish tissue samples, reference materials and Co, Fe, Zn and Se synthetic standards were irradiated for 8 h, under a thermal neutron flux of 10 12 cm -2 s -1 in the IEA-R1 nuclear research reactor at IPEN. Details for the INAA experimental procedure have been described by Fávaro et al (2000).…”

Section: Analytical Proceduresmentioning

confidence: 99%

Use of Cathorops spixii as bioindicator of pollution of trace metals in the Santos Bay, Brazil

et al. 2009

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In the present study Cathorops spixii, was evaluated as a bioindicator fish for trace metal pollution. Concentrations of cobalt (Co), iron (Fe), selenium (Se) and zinc (Zn) were determined by Instrumental Neutron Activation Analysis in liver. Mercury (Hg) and methyl-mercury (MeHg) were analyzed by Cold Vapor Atomic Absorption Spectrometry in muscles and livers. High concentrations of Co, Fe, Se and Zn were observed in C. spixii from Santos Bay in comparison to fish collected in a non-polluted site in the same Brazilian coast. These trace metal concentrations were out of the permissible levels for human consumption. Although, Hg and MeHg levels were low, the C. spixii could still be used as an effective bioindicator to observe trace metal behaviors in the environment in function of the bioaccumulation process observed mainly by other analyzed trace metals. Thus, the use of this species is strongly recommended to monitor the effects and behavior of trace metal pollution in aquatic ecosystems in Brazil due to its bioaccumulation function.

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Determinação de elementos minerais e traços por ativação neutrônica, em refeições servidas no restaurante da Faculdade de Saúde Pública/USP

Cited by 10 publications

References 0 publications

Nuclear Analytical Techniques in Animal Sciences: New Approaches and Outcomes

Nuclear Analytical Techniques in Animal Sciences: New Approaches and Outcomes

Cooking process evaluation on mercury content in fish

Use of Cathorops spixii as bioindicator of pollution of trace metals in the Santos Bay, Brazil

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