Arsenic in Argentinean polished rice: Situation overview and regulatory framework

Oteiza, Juan Martín; Barril, Patricia A.; Quintero, César; Savio, Marianela; Befani, Romina; Cirelli, Alicia Fernández; Echegaray, Natalia S.; Murad, Carolina; Buedo, Ariel

doi:10.1016/j.foodcont.2019.106909

Cited by 7 publications

(1 citation statement)

References 15 publications

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“…However, it would classify 198 samples as “unsafe” with iAs < 200 μg/kg but total As > 300 μg/kg (i.e., 5%, which, for example, in the European Union would be deemed “safe”). A recent national Brazilian survey arrived at even higher numbers, showing that more than 30% of polished rice samples were “unsafe” on the basis of the current total As limit, whereas not even 5% would exceed other countries’ iAs-only limit . A review of the total As-based limit was therefore suggested as necessary.…”

Section: Regulating Total As In Ricementioning

confidence: 99%

Dimethylated Thioarsenates: A Potentially Dangerous Blind Spot in Current Worldwide Regulatory Limits for Arsenic in Rice

Planer-Friedrich

Kerl

Blanco

et al. 2022

J. Agric. Food Chem.

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Arsenic (As) occurrence in rice is a serious human health threat. Worldwide, regulations typically limit only carcinogenic inorganic As, but not possibly carcinogenic dimethylated oxyarsenate (DMA). However, there is emerging evidence that “DMA”, determined by routine acid-based extraction and analysis, hides a substantial share of dimethylated thioarsenates that have similar or higher cytotoxicities than arsenite. Risk assessments characterizing the in vivo toxicity of rice-derived dimethylated thioarsenates are urgently needed. In the meantime, either more sophisticated methods based on enzymatic extraction and separation of dimethylated oxy- and thioarsenates have to become mandatory or total As should be regulated.

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Section: Regulating Total As In Ricementioning

confidence: 99%