Survey of 13 trace elements of toxic and nutritional significance in rice from Brazil and exposure assessment.
Twenty-seven rice samples from Brazil, four parboiled brown, seventeen white and six parboiled white were analysed by ICP-MS for trace element determination. Concentrations of arsenic varied from 58.8 to 216.9 ng g(-1), for cadmium from 6.0 to 20.2 ng g(-1), for antimony from 0.12 to 1.28 ng g(-1), and for uranium from 0.025 to 1.28 ng g(-1). The estimated daily intake through rice consumption was 9.5 µg for As, 2.4 µg for Cd, 0.029 µg for Sb, 0.013 µg for U, 3.1 µg for Co, 0.2 µg for Cu, 85.6 mg for Mg, 1.9 mg for Mn, 333 mg for P, 3.0 µg for Se, 1.6 mg for Zn, 0.9 mg for Rb, and 0.3 µg for V. Found values represent a considerable percentage of the dietary reference intakes and provisional tolerable daily intake for essential and toxic elements, respectively.
a Departamento de Análises Clínicas , Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto - FCFRP - USP - Avenida do Café , s/n, Monte Alegre , 14040-903, Ribeirão Preto , SP , Brazil.
B L
BL
Batista
V C
VC
De Oliveira Souza
F G
FG
Da Silva
F
F
Barbosa
D001151:Arsenic / Q000032:analysis; D001938:Brazil; D002104:Cadmium / Q000032:analysis; D004032:Diet; D006801:Humans; D013058:Mass Spectrometry; D008452:Maximum Allowable Concentration; D009751:Nutritional Requirements; D012275:Oryza / Q000737:chemistry*; D064167:Recommended Dietary Allowances; D012639:Seeds / Q000737:chemistry; D014131:Trace Elements / Q000008:administration & dosage / Q000032:analysis* / Q000633:toxicity*; D014501:Uranium / Q000032:analysis
D014131:Trace Elements; D002104:Cadmium; D014501:Uranium; D001151:Arsenic
cereals; rice; trace elements (nutritional); trace elements (toxic)