Zeiner Michaela, Juranović Cindrić Iva
Man-Environment-Technology Research Centre, School of Science and Technology, Örebro University, Gymnastikgatan 1, 70182 Örebro, Sweden.
Division of Analytical Chemistry, Department of Chemistry, BOKU-University of Natural Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria.
Toxics. 2018 Jun 8;6(2):31. doi: 10.3390/toxics6020031.
Fruits and vegetables are considered a beneficial contribution to the human diet. Especially, berries contain a great deal of bioactive compounds, such as anthocyanins, organic acids, tannins, phenols, and antioxidants. Apart from organic substances, inorganic nutrients are also present in fruits. Some metals and metalloids are essential for humans, whilst others may exhibit harmful effects. Wild grown berries, collected in so-called unpolluted areas, are considered to be free of any potentially toxic ingredients. However, due to transmission processes pollutants can also reach remote areas and, furthermore, metal uptake from the soil via roots has to be taken into account. Thus, the presented study focused on the determination of Al, Cd, Cr, Ni, and Pb in lingonberries, blueberries, and rose hips collected in a non-polluted area in Croatia. Neither Cd nor Cr could be found in any sample. Ni levels were mainly up to 25 mg/kg, in a comparable range to the literature data. No health threat is to be expected by eating these fruits and berries regarding Cd, Cr, and Ni. Rose hips, however, contain Pb beyond the stipulated limit in fruits, and also Al is present at a high level (8 mg/g).
水果和蔬菜被认为对人类饮食有益。特别是，浆果含有大量生物活性化合物，如花色苷、有机酸、单宁、酚类和抗氧化剂。除了有机物质外，水果中还存在无机营养成分。一些金属和类金属对人类是必需的，而其他一些可能会产生有害影响。在所谓未受污染地区采集的野生浆果被认为不含任何潜在有毒成分。然而，由于传输过程，污染物也可能到达偏远地区，此外，还必须考虑通过根部从土壤中吸收金属的情况。因此，本研究重点测定了在克罗地亚一个未受污染地区采集的越橘、蓝莓和玫瑰果中的铝、镉、铬、镍和铅。在任何样品中均未发现镉和铬。镍含量主要高达25毫克/千克，与文献数据处于可比范围。食用这些水果和浆果，就镉、铬和镍而言，预计不会对健康构成威胁。然而，玫瑰果中的铅含量超过了水果规定的限量，铝含量也很高（8毫克/克）。
