Concentrations of Mn, Fe, Cu, Zn, Cr, Cd, Pb, Ni in selected Nigerian tubers, legumes and cereals and estimates of the adult daily intakes

被引:76
作者
Akinyele, I. O. [1 ]
Shokunbi, S. [2 ]
机构
[1] Univ lbadan, Fac Publ Hlth, Dept Human Nutr, Ibadan, Nigeria
[2] Babcock Univ, Benjamin Carson Snr Sch Med, Dept Biochem, Ogun State, Nigeria
关键词
Manganese; Iron; Copper; Zinc; Chromium; Cadmium; Lead; Nickel; Tubers; Legumes; Cereals; Nigeria; Daily intake; TRACE-ELEMENT CONTENTS; HEAVY-METALS; FRUITS; VEGETABLES; BEVERAGES; COPPER; NICKEL; COBALT; FOODS; LEAD;
D O I
10.1016/j.foodchem.2014.10.098
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
This study was designed to determine the levels of microminerals (manganese (Mn), iron (Fe), copper (Cu), zinc (Zn), chromium (Cr)) and heavy metals (cadmium (Cd), lead (Pb) and nickel (Ni)) in some tubers, legumes and cereals obtained from the markets in Abeokuta city, South-West Nigeria. The food samples were digested by dry ashing procedure and their minerals were determined by atomic absorption spectrophotometer. The results show mean values of 1.67-32.00, 7.25-61.58, 1.59-10.56, 6.65-46.99, 0.02-0.58, <0.01-0.09, <0.08, and 0.06-0.14 mg/kg for Mn, Fe, Cu, Zn, Cr, Cd, Pb and Ni respectively. The levels of these metals in all the samples analysed were within the ranges reported for similar tubers, legumes and cereals from various parts of the world. The daily intakes of the metals through tubers, legumes and cereals were found to be lower than the provisional tolerable daily intakes proposed by Joint FAO/WHO Expert Committee on Food Additives. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:702 / 708
页数:7
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