Monitoring food safety of marine fishes
Research investigates the concentration of chemical elements in commercial species
Marine fish are considered a source of high-quality protein and are rich in essential amino acids, fats, vitamins and many essential chemical elements such as calcium, iron and selenium. However, the presence of potentially toxic inorganic elements can cause everything from neurological and endocrine problems to increased cancer incidence.
Metals such as mercury, lead and cadmium are toxic even when consumed at low concentrations, and their adverse effects are magnified by accumulating in animal tissues. On the other hand, even elements like zinc and chromium, which play important roles in metabolism, can cause toxic effects if consumed in excess.
The accumulation of chemical elements in organisms depends on several factors, such as the type of element, the form of assimilation, the species and the metabolism in different tissues. For example, tissues with high metabolic rates, such as liver and kidney, may have a high concentration of metals, especially those with potential toxic effects.READ MORE