Assessment of Trace Metals in commonly consumed Canned Tomatoes in Benin Metropolis.
Abstract
The amount of canned tomatoes readily consumed in Nigeria has increased almost five times higher than the second-ranked canned vegetable, sweet corn. Ten commonly consumed brands of canned tomatoes samples
purchased from local market in Benin City, Nigeria were analyzed for heavy metals. Cu, Fe, Cd, Mn, Ni, Pb and Zn, were determined using the Atomic Absorption Spectrophotometer (AAS). The mean concentration of heavy
metal were nickel (6.92+0.05mg/kg), manganese (3.87+0.12mg/kg), lead (0.68+0.05mg/kg), copper (2.01+0.03mg/kg), iron (11.25+0.59mg/kg) and zinc (62.7+0.02mg/kg, Cd was not detected in all samples. There was no significant difference (p>0.05) in the concentrations of the metals in the same brands of canned tomatoes. The results of the studied brand canned tomatoes show that the concentrations of the heavy metals were well below the permissible FAO/WHO and Codex Standard limits of tolerable intake.
purchased from local market in Benin City, Nigeria were analyzed for heavy metals. Cu, Fe, Cd, Mn, Ni, Pb and Zn, were determined using the Atomic Absorption Spectrophotometer (AAS). The mean concentration of heavy
metal were nickel (6.92+0.05mg/kg), manganese (3.87+0.12mg/kg), lead (0.68+0.05mg/kg), copper (2.01+0.03mg/kg), iron (11.25+0.59mg/kg) and zinc (62.7+0.02mg/kg, Cd was not detected in all samples. There was no significant difference (p>0.05) in the concentrations of the metals in the same brands of canned tomatoes. The results of the studied brand canned tomatoes show that the concentrations of the heavy metals were well below the permissible FAO/WHO and Codex Standard limits of tolerable intake.
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