University of Khartoum

Determination of Lead and Cadmium Levels in Frozen Poultry Meat in Marketsat Khartoum State 2017

Determination of Lead and Cadmium Levels in Frozen Poultry Meat in Marketsat Khartoum State 2017

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Title: Determination of Lead and Cadmium Levels in Frozen Poultry Meat in Marketsat Khartoum State 2017
Author: Adam, Tayba Ali AwadElgeed
Abstract: Background: Metals are present in food as a result of many human activities. Heavy metals are concern as it exerts harmful effects on health such as cadmium (Cd), lead (Pb) and mercury (Hg) are toxic due to they accumulation in the biological tissues. This study was conducted to detect and determine the level concentration of lead and cadmium in different tissues of poultry (breast, thighs, heart, liver and gizzard). Methodology : A total of 30 frozen poultry samples (breast, thigh, heart, liver and gizzard) were randomly collected from points of distribution centers in Alssog Alarabi in Khartoum State, samples preparing by one hundred gram of each sample was dried in an oven at 100 °C. The dried samples were crushedand kept in acid leached nylon bags in a desiccator prior to wet digestion,10 g of each dried sample was added to 25 mL of the digested mixture,the samples were digested by convection heating for 3hour in a water bath adjusted to 70 °C then the digestion was allowed to cool and transferred into clean standard flask, then lead and cadmium were analyzed byFlame Atomic Absorption Spectrometer (FAAS). The wavelength of λ = 217 nm was used for detection of Pb while the wavelength of λ = 228.8 nm for Cd. Results: Mean concentration of heavy metals in (breast, thighs, heart, liver and gizzard)for Pb samples were: 0.19, 0.16, 0.26, 0.21, 0.19 mg/kg respectively.For Cdsamples were 0.002, 0.022, 0.030, 0.023, 0.022 mg/kg respectively. The samples of lead exceeded the permissible limits in breast and thigh and lower than permissible limits set by the Sudanese Standards and Metrology Organization (SSMO) and Codex AlimentariusCommission (CAC) in heart, liver and gizzard. All examined samples for cadmium were within the permissible limits it is(0.1mg/kg in meat and 0.5mg/kg in inner organs). Conclusion:This study revealed the level of lead were found in poultry meat is higher than the permissible limits set by SSMO and Codex in breast and thigh samples and below in heart, liver and gizzard but samples for cadmium were found below the permissible limits set by (SSMO) and (CAC).
URI: http://khartoumspace.uofk.edu/123456789/26591


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