Abstract
Lead (Pb), chromium (Cr) and cobalt (Co) were investigated in 160 local and imported meat samples of cattle and buffalo collected from markets of Mosul city by using Atomic Absorption Spectrophotometer (AAS). Results reported mean concentrations of Pb and Cr in local cattle meat 0.136 and 0.0651 mg/kg, respectively significantly higher than that reported for Co 0.008 mg/kg. In imported cattle meat, results revealed that Pb presented a mean concentration 0.182 mg/kg significantly higher than that presented by Cr and Co 0.0486 and 0.00971 mg/kg, respectively. No significant differences in the mean concentrations of Pb, Cr and Co in local buffalo meat 0.119, 0.0896 and 0.017 mg/kg, respectively, and imported buffalo meat 0.106, 0.102 and 0.041 mg/kg, respectively, were reported. The results revealed that 20% from each local cattle and buffalo meat samples, 12.5% from imported cattle meat and 22.5% from imported buffalo meat were exceeded the maximum permissible limit for lead in meat. Concerning Cr, 2.5% from imported cattle meat and 5% from each of local and imported buffalo meat surpassed the maximum acceptable limit. Ultimately, results showed that all samples of local and imported cattle and buffalo meat were within the maximum allowable limits for Co. The hazards of metals on public health was discussed.
Highlights
Meat is an excellent source of high-quality protein, as it provides all essential amino acids necessary for growth and maintenance of our bodies
Due to the urgent need for a local database and risk assessment studies related to the potential threats originating from contamination of human food of animal origin with heavy metals, we offered this study to investigate some of these metals Pb, Cr and Co in local and imported cattle and buffalo meat, that comprise a serious human health hazard, when they above the maximum permissible limits in meat
Results related to occurrence of studied metals in local and imported cattle meat samples showed range and mean concentrations of Pb, Cr and Co in local cattle meat 0.0162.11 (0.136), 0.013-0.92 (0.0651) and 0.002-0.089 (0.008) mg/kg, respectively, whereas Pb and Cr presented the higher significant levels
Summary
Meat is an excellent source of high-quality protein, as it provides all essential amino acids necessary for growth and maintenance of our bodies. It can adversely affect multiple systems of human body, mainly as a result to interference with wide range of enzymes and causing serious disorders on central nervous, hepatic, hematopoietic, reproductive, cardiovascular, endocrinal, gastrointestinal and renal systems [7] Both chromium and cobalt are essential trace metals for humans. Due to the urgent need for a local database and risk assessment studies related to the potential threats originating from contamination of human food of animal origin with heavy metals, we offered this study to investigate some of these metals Pb, Cr and Co in local and imported cattle and buffalo meat, that comprise a serious human health hazard, when they above the maximum permissible limits in meat
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