Assessment of Heavy Metal Levels in Offal Meats (Kidney and Liver) of Beef Sold at Gwagwalada Market, Abuja, Nigeria: An Overview

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Assessment of Heavy Metal Levels in Offal Meats (Kidney and Liver) of Beef Sold at Gwagwalada Market, Abuja, Nigeria: An Overview

July 6, 2020 Physical Science 0

Aims: To determine the concentrations of heavy metals (Cd, Fe, Mn, Pb, and Zn) in kidney and liver of slaughtered cattle.  Study Design: Analytical method. Place and Duration of Study: Samples obtained from Gwagwalada abattoir in Abuja, Nigeria and transported University of Abuja, Chemistry Laboratory for analysis. The study lasted for four (4) months.  Methodology: Wet digestion of samples followed by metal analysis using Accusys 211 Bulk Scientific Atomic Absorption Spectroscopy (AAS). Results: The empirical results indicated that the mean levels or concentration of these heavy metals in kidney of cattle were 47.75±0.002 g/g Zn, 279.5±0.084 g/g Fe, 10.00±0.00g/g Mn, while Cd and Pb were not detected. The levels or concentration of heavy metals in the liver sample were 0.500=±0.000025 g/g Cd, 57.00±0.0001 g/g Zn, 119.5±0.0016 g/g Fe, 5.75±0.000025 g/g Mn, Pb was not detected. The concentration of Fe and Mn were found to be high in kidney sample than the liver sample.  Conclusion: The evidence from this study revealed the safety of these investigated offal meats as the concentrations of these metals in the kidney and liver samples were within the maximum permissible limit according to the European Commission (EC) and FAO/WHO standards.


Author(s) Details

Adefarati Oloruntoba
State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, PR China.

Isaiah Adukwu Nathaniel
Department of Chemistry, University of Abuja, Abuja, Nigeria.

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