Arsenic and cadmium contents in Brazilian rice from different origins can vary more than two orders of magnitude

Lilian Seiko Kato (Corresponding Author), Elisabete A. de Nadai Fernandes, Andrea Raab, Márcio Arruda Bacchi, Joerg Feldmann (Corresponding Author)

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Brazil is a major producer of rice, but there is not enough information about As and Cd in rice grown under different conditions in this country. Here, As and Cd were determined by ICP-MS and species of As by HPLC-ICP-MS in Brazilian husked rice, covering diverse cultivars and regions, as well as upland and flooded production systems. Significant differences were observed for both elements contents according to the origin of rice. All samples were below the maximum limit for Cd (400 µg/kg) set by national legislation, while nine samples presented total As above the legislation limit (300 µg/kg). From 24 samples analyzed for As species, 42% showed iAs above the European limit for production of food to infants (100 µg/kg). The total As content in samples from Mato Grosso state presented a maximum value of 6 µg/kg, which combined with low Cd content make interesting further studies.

Chemical compounds: Arsenic, inorganic arsenic (PubChem CID: 5359596), Cadmium (PubChem CID: 23973), Dimethylarsinic acid (PubChem CID: 2513), monomethylarsonic acid (PubChem CID: 8948)
Original languageEnglish
Pages (from-to)644-650
Number of pages7
JournalFood Chemistry
Volume286
Early online date19 Feb 2019
DOIs
Publication statusPublished - 15 Jul 2019

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Keywords

  • ICP-MS
  • HPLC
  • inorganic arsenic
  • arsenic speciation
  • rice cultivars
  • flooded production
  • upland production
  • Arsenic speciation
  • Rice cultivars
  • Upland production
  • Flooded production
  • Cadmium (PubChem CID: 23973)
  • Arsenic, inorganic arsenic (PubChem CID: 5359596)
  • Monomethylarsonic acid (PubChem CID: 8948)
  • Dimethylarsinic acid (PubChem CID: 2513)
  • Inorganic arsenic
  • Humans
  • Infant
  • Chromatography, High Pressure Liquid
  • Food Contamination/analysis
  • Infant Food/analysis
  • Cadmium/analysis
  • Food Analysis/methods
  • Mass Spectrometry
  • Brazil
  • Oryza/chemistry
  • Maximum Allowable Concentration
  • Arsenic/analysis

ASJC Scopus subject areas

  • Analytical Chemistry
  • Food Science

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