Uso De Um Scanner De Mesa E Espuma De Poliuretano Para Quantificação De Ferro Total Em Cápsulas De Suplementos Alimentares

Abstract

In this work, an alternative and low-cost technique for the extraction and quantification of Fe (total) from food supplements by digital image analysis is shown. The method is based on the complexation of Fe ions in solution with the 8-hydroxyquinoline ligand, forming a colored complex that is extractable from aqueous solution to polyurethane foam, coloring this one, which was initially white, to brown. After the acquisition and treatment of the digital image generated by the foam, the quantification of Fe is performed. Interference and recovery tests show that the method is not affected by concomitants in the sample. The method was applied to 3 different types of dietary supplements, and these results were compared to those obtained by FAAS, showing statistical equivalence. The limits of quantification obtained in this work was 1.78 μmol L-1, the limit of detection was 0.53 μmol L-1, the accuracy was 97.5 + 4.8% and the precision was 8.45%. The analytical curve was linear from 2.0 to 10.0 μmol L-1, with a r2 of 0.9975.

Iron Quantification in Dietary Supplements using Four Colorimetric Assays

“…Its deficiency is considered the most common cause of anemia worldwide and is more common in babies, children, and pregnant women. Iron deficiency (hypoferremia) plays a role in or exacerbates Huntington’s disease, Alzheimer’s disease, and Parkinson’s disease and problems in brain development and muscle function, while iron accumulation (hyperferremia) causes hemochromatosis and hepatitis. , …”

“…Global dietary supplement sales are experiencing rapid growth . In this context, the determination of total iron in dietary supplements is essential to ensure the quality of the products consumed by the population . It also serves as an example of how nutritional information may be measured by government agencies …”

“…Iron deficiency (hypoferremia) plays a role in or exacerbates Huntington's disease, Alzheimer's disease, and Parkinson's disease and problems in brain development and muscle function, while iron accumulation (hyperferremia) causes hemochromatosis and hepatitis. 1,2 Iron is vital for living organisms by participating in several metabolic processes, including oxygen transport, DNA synthesis, and electron transport. 3 Early physicians suggested that iron would cure a variety of diseases.…”

“…5 In this context, the determination of total iron in dietary supplements is essential to ensure the quality of the products consumed by the population. 1 It also serves as an example of how nutritional information may be measured by government agencies. 6 Colorimetric assays are simple and cheap and offer reliable results.…”