Determination Of The Levels Of Selected Essential And Toxic Metals In Canned Tomato Paste

In this study, a reliable digestion procedure for the analysis of tomato paste wasrnoptimized and levels of selected essential metals (Zn, Fe, Cu and Mn) and toxic metalsrn(Pb and Cd) were determined in four tomato paste of local origins using AtomicrnAbsorption Spectrometry. The results showed that the zinc concentration in the fourrntomato paste examined ranged between 2.54 – 6.63 mg Kg-1, iron between 63.11 –rn96.10 mg Kg-1, copper 6.95 mg Kg-1, manganese between 11.5 – 23.02 mg Kg-1, andrncadmium between 0.511 – 1.22 mg Kg-1. The results are also compared withrnInternational Standards. The cadmium content obtained showed that the level is higherrnthan the FAO/WHO limits.rnKey words: Tomato paste, metals, Flame Atomic Absorption Spectrometry

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