Valoración y cuantificación de metales pesados en carne de cerdo, pescado, pollo y res comercializados en pamplona norte de Santander

Abstract

Heavy metal contamination in food is one of the most important issues worldwide, these metals are not biodegradable and tend to bioaccumulate in the muscle and viscera of animals, which constitutes a health risk, when we consume these by-products we acquire the metal that the animal has accumulated and an accumulative chain is established that dangerously increases its concentration. In the present study, the presence of traces of Cd, Cu, Mo, Pb and Zn in beef, pork, chicken and fish sold in 12 establishments in the Pamplona Norte de Santander market square, the metals were quantified by atomic absorption spectroscopy, using hollow cathode lamps, an air-acetylene burner, and Pearson correlation analyses were performed between the contents of each metal. In the case of Cadmium, the concentrations for this metal exceeded the permissible limits < 0.050 mg / kg. Fish meat had the highest concentration of this metal at 0.117 mg/kg, followed by beef at 0.109 mg/kg, pork at 0.095 mg/kg, and chicken at 0.079 mg/kg. The Cu content in the different matrices showed the following results: fish meat at 0.343 mg/kg, beef at 0.306 mg/kg, pork at 0.243 mg/kg, and chicken at 0.221 mg/kg. Regarding Zn concentration, beef had the highest content at 8.35 mg/kg. Mo was not detected in any of the samples.