Study of the Effect of Pastoral Areas on Mineral Levels in Goat Milk in El Oued (Algeria) Region

Abstract

Among all foods and based on its nutritional content, goat's milk is considered one of the most complete and balanced. In fact, in recent decades, goat's milk has assumed an increasingly important role in human nutrition, not only for infants but also for adults. The problem of the presence of contaminants in milk has been widely raised by the media in recent years, so the establishment of toxicological tolerances in foodstuffs has become a necessity today. In our work, we studied the presence of metals (Cl-, pb, cd, Cu, So4-, Na) in some samples of Goat milk collected in different areas of the El Oued region. Analysis of Goat milk samples showed different and similar levels of these metals, for heavy metals copper content between 20-40 ug/l and lead 0.01-0.06 ug/l and cadmium 0.01-0.04 ug/l for mineral salts sodium content 0.04-0.2g/l and chlorine 0.2-0.25 g/l and sulfate 0.2-1.8 g/l with a higher concentration of sodium in goats from the Al- ZGOM region and a higher concentration of sulphates in the Al- BAYADHA region. As for the BEN GASHA region, we find a higher concentration of copper compared to other regions. The change in the proportions and concentrations of minerals in the milk of goats grazing in different regions confirms the effect of air and water pollution and changes in the type of food on the mineral components of milk, which affect human health.