期刊
FOOD CHEMISTRY
卷 255, 期 -, 页码 365-371出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2018.02.058
关键词
Milk powder; Element analysis; Heavy metal; Lead; Iron; Baby formula; Tanzania
Milk powder is a food for malnourished African children and for healthy infants of women with HIV/AIDS. High demand and low purchasing power has resulted in a huge informal, black market in Sub-Saharan Africa. Forty-three milk powder batches were analyzed for 43 chemical elements using ICP-MS One sample (2.3%) was contaminated at a lead concentration of 240 mu g/kg dry weight exceeding the European threshold (130 mu g/kg dry weight). Macroelement contents revealed a trend decreasing in concentration through skimmed, full cream products to infant formulae. Concentration ranges by dry weight differed in respect of uncertainty intervals of +/- 10%. Median Ca, K and P concentrations declined from 11.14 g/kg to 3.21 g/kg, 14.11 g/kg to 4.95 g/kg and 9.12 g/kg to 2.75 g/kg dry mass, respectively. Milk powder samples obtained from the Tanzanian black market were comparable in respect of nutritional and chemical content to international branded full cream products.
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