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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/12600

Title: Levels of selected heavy metals in canned tomato paste sold in Ghana
Authors: Boadi, Nathaniel Owusu
Mensah, John
Twumasi, Sylvester
Badu, Mercy
Osei, Irene
Keywords: canned foods
vegetables
heavy metals
Issue Date: 1-Mar-2012
Publisher: Taylor & Francis
Citation: Nathaniel Boadi , John Mensah , Sylvester Twumasi , Mercy Badu & Irene Osei (2012) Levels of selected heavy metals in canned tomato paste sold in Ghana, Food Additives and Contaminants: Part B, 5:1, 50-54, DOI: 10.1080/19393210.2012.657250
Abstract: Sixty-one samples of canned tomato paste comprising seven brands originating from three countries and sold in local markets in the Kumasi Metropolis of Ghana were analysed for levels of iron (Fe), zinc (Zn), manganese (Mn), cadmium (Cd) and lead (Pb) by flame atomic absorption spectrophotometry and for levels of mercury (Hg) by direct mercury analyzer. Mean heavy metal concentrations varied by brand, ranging from below the limit of detection (Cd) to a maximum concentration range of 1.68 1.63 to 58.6 14.5 mg g 1 (Fe). Estimated mean ranges of other heavy metals are 2.06 0.62 to 8.52 0.68 mg g 1 (Zn), 2.62 0.33 to 5.75 0.47 mg g 1 (Mn), 0.070 0.003 to 0.116 0.012 mg g 1 (Pb) and 0.011 0.001 to 0.102 0.001 mg g 1 (Hg). Assessed metal levels in five brands were below the WHO/FAO permissible levels. Results of the one-way analysis of variance (ANOVA) conducted on the data suggested no significant variations (P4 0.05) in the concentrations of the metals in the same brands of canned tomatoes.
Description: An article published by Taylor and Francis and also available at doi.org/10.1080/19393210.2012.657250
URI: http://hdl.handle.net/123456789/12600
Appears in Collections:College of Science

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