Dohnalova Lucie, Bucek Pavel, Vobornik Petr, Dohnal Vlastimil
Department of Hygiene, Faculty of Military Health, University of Defence, Trebesska 1575, Hradec Kralove CZ-500 01, Czech Republic.
Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, Hradec Kralove CZ-500 03, Czech Republic.
Food Chem. 2017 Feb 15;217:456-460. doi: 10.1016/j.foodchem.2016.08.066. Epub 2016 Aug 24.
Nickel is a metal that can be present in products containing hardened edible oils, possibly as leftover catalyst from the vegetable oil hardening process. Nickel may cause toxic effects including the promotion of cancer and contact allergy. In this work, nickel content was determined in hydrogenated vegetable fats and confectionery products, made with these fats, available on the Czech market using newly developed method combining microwave digestion and graphite furnace AAS. While concentrations of 0.086±0.014mg.kg(-1) or less were found in hydrogenated vegetable fats, the Ni content in confectionery products was significantly higher, varying between 0.742±0.066 and 3.141±0.217mg.kg(-1). Based on an average consumer basket, daily intake of nickel from vegetable fats is at least twice as low as intake from confectionery products. Based on results, the levels of nickel in neither vegetable fats nor confectionery products, do not represent a significant health risk.
镍是一种可能存在于含有硬化食用油产品中的金属，它可能是植物油硬化过程中残留的催化剂。镍可能会产生毒性作用，包括促进癌症和引起接触性过敏。在这项研究中，使用新开发的结合微波消解和石墨炉原子吸收光谱法的方法，测定了捷克市场上氢化植物脂肪以及用这些脂肪制成的糖果产品中的镍含量。氢化植物脂肪中的镍浓度为0.086±0.014mg·kg⁻¹或更低，而糖果产品中的镍含量明显更高，在0.742±0.066至3.141±0.217mg·kg⁻¹之间变化。根据平均消费篮子计算，从植物脂肪中每日摄入的镍量至少比从糖果产品中摄入的量低两倍。根据研究结果，植物脂肪和糖果产品中的镍含量均不构成重大健康风险。
