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Arsenic uptake by plant foods for human nutrition: current status and new perspectives

2017-07Conference object Restricted access
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dc.contributor.authorCastanheira, Isabel
dc.contributor.authorCoelho, Inês
dc.contributor.authorGueifão, Sandra
dc.contributor.authorVentura, Marta
dc.date.accessioned2018-02-23T11:50:48Z
dc.date.available2018-02-23T11:50:48Z
dc.date.issued2017-07
dc.description.abstractArsenic (As), is a metalloid that can accumulate in water, plants and seafood to high levels. Depends on the chemical form it can pose a risk to human health. Inorganic arsenic (Asi) is considered a non-threshold carcinogen, and every exposure constitutes a risk. Monomethylarsonic acid (MMA) and dimethylarsinic acid (DMA) can be related with inorganic exposure and arsenobetaine (AsB) and arsenocholine (AsCh) are organic species with nontoxic effects associated. Speciation data is crucial to clarify the linkage between arsenic content and chronic diseases. A comprehensive dietary exposure assessment is required in particularly to infants and pregnant women. Fetal exposure to inorganic arsenic seems correlated with an increased risk of adverse health effects later in life. Recent advances in analytical procedures and the metrological principles applied for the identification of arsenic chemical species are discussed. HPLC-ICP-MS as the golden standard technique providing data to support a comprehensive dietary exposure assessment and to redefine risk assessment of (Asi), is presented. The contribution of Total Diet Studies as a harmonised methodology for food sampling and exposure assessment modelling to ensure comparability and consistency of arsenic data across countries is another aim of this presentation. Information about mitigation strategies to reduce exposure to arsenic is also highlighted.pt_PT
dc.description.sponsorshipEste trabalho foi desenvolvido com o apoio da FCT.pt_PT
dc.description.versionN/Apt_PT
dc.identifier.urihttp://hdl.handle.net/10400.18/5047
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherINSApt_PT
dc.subjectArsenicpt_PT
dc.subjectSpeciation Analysispt_PT
dc.subjectFood Datapt_PT
dc.subjectMetrologypt_PT
dc.subjectData Exchangept_PT
dc.subjectFood Contaminantspt_PT
dc.subjectSegurança Alimentarpt_PT
dc.titleArsenic uptake by plant foods for human nutrition: current status and new perspectivespt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceBraga, Portugalpt_PT
oaire.citation.titleInternational Conference of Food Contaminants, 13-14 July 2017pt_PT
rcaap.rightsclosedAccesspt_PT
rcaap.typeconferenceObjectpt_PT

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