Critical Evaluation of Possible Contamination by Toxic Metals in Powdered Milk During the Production Process

Authors

  • Fernando B Mainier Escola de Engenharia, Universidade Federal Fluminense, Niterói, RJ, Brazil
  • Dalmo Lima Filho Instituto de Química, Universidade Federal Fluminense, Niterói, RJ, Brazil
  • Aida Maria Bittencout Filha Instituto de Química, Universidade Federal Fluminense, Niterói, RJ, Brazil

DOI:

https://doi.org/10.24297/jac.v8i2.4043

Keywords:

Powdered milk, contamination, corrosion, cadmium, lead, nickel

Abstract

This study used an interdisciplinary approach to bring together some of the necessary and fundamental knowledge in the processing of powdered milk, mainly in relation to the materials used in the manufacture of equipment used in industrial processing. In order to clarify this issue, questions are presented on problems of corrosion, erosion and contamination by microorganisms that can generate or contribute to toxic metal leaching and consequently contaminate milk powder. In this work, we developed a method using atomic absorption spectroscopy with electro-thermal atomization to determine levels of cadmium, lead and nickel. To evaluate the possibility of contamination, we tested 15 samples of various brands of milk powder purchased in shops. Fortunately, the levels of these elements, in all samples, were lower than the maxima allowed under Brazilian law. However, this method of chemical analysis can be used as a tool of quality as the contamination that may occur during the production process.

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Author Biographies

Fernando B Mainier, Escola de Engenharia, Universidade Federal Fluminense, Niterói, RJ, Brazil

Escola de Engenharia

Aida Maria Bittencout Filha, Instituto de Química, Universidade Federal Fluminense, Niterói, RJ, Brazil

Instituto de Química, Universidade Federal Fluminense, Niterói, RJ, Brazil

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Published

2012-12-20

How to Cite

Mainier, F. B., Filho, D. L., & Filha, A. M. B. (2012). Critical Evaluation of Possible Contamination by Toxic Metals in Powdered Milk During the Production Process. JOURNAL OF ADVANCES IN CHEMISTRY, 8(2), 1630–1638. https://doi.org/10.24297/jac.v8i2.4043

Issue

Section

Articles