Determinação dos elementos traços Cd, Pb, Cu, Zn, Cr, Ni e Al em amostras de pães e vegetais comercializadas na cidade de Jequié, Bahia

Marina Menezes Santos Filha; Roberta Pereira Matos; Hérica Amaral Leite; Ana Paula Gebelein Gervasio

doi:10.22481/exon.v3i1.19447

Authors

Marina Menezes Santos Filha Southwest Bahia State University
Roberta Pereira Matos Southwest Bahia State University
Hérica Amaral Leite Southwest Bahia State University
Ana Paula Gebelein Gervasio Universidade Federal de Sergipe

DOI:

https://doi.org/10.22481/exon.v3i1.19447

Keywords:

Elementos traços, pães, vegetais, risco a saúde, controle de qualidade, ICP OES

Abstract

Concentrations of Cd, Pb, Zn, Cu, Cr, Ni and Al were determined using inductively coupled plasma optical emission spectrometry in eleven samples of foodstuff which includes breads and vegetable most frequently consumed by inhabitants of Jequié city, BA. Results obtained showed the mean ± standard deviation of three determinations. The content of Cd ranged between 1,32 x 10^-1 ± 7,00 x 10^-4 to 2,80 x 10^-1 ± 7,20 x 10^-4 mg kg^-1 in cabbage and sweet pepper, respectively. The highest levels of Pb 7,40 ± 7,10 x 10^-3 mg kg^-1 and Zn 91,0 ± 9,50 x 10^-2 mg kg^-1 were found in rocket. Cu levels ranged widely from 2,12 ± 1,50 x 10^-3 in bread to 22,1 ± 4,50 x 10^-2 mg kg^-1 in tomatoes. The Cr level 4,73 ± 1,50 x 10^-3 mg kg^-1 was high in onion white. Highest levels of Ni 5,91 ± 2,40 x 10^-4 mg kg^-1 and Al 1,83 x 102 ± 6,10 x 10^-2mg Kg^-1 were found to occur in lettuce. The concentration for some metal ions (Cd in sweet pepper, Pb in rocket, sweet pepper and tomatoes, Cu in rocket and tomatoes and Zn in rocket) exceed the maximum permissible limit of metals in foodstuff with recommended by the Brazilian Ministry of Health (1998).

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