Stoikou Vasiliki, Andrianos Vangelis, Stasinos Sotiris, Kostakis Marios G, Attiti Sofia, Thomaidis Nikolaos S, Zabetakis Ioannis
Laboratory of Food Chemistry, Department of Chemistry, University of Athens, 15771 Athens, Greece.
Laboratory of Analytical Chemistry, Department of Chemistry, University of Athens, 15771 Athens, Greece.
Foods. 2017 Jul 17;6(7):51. doi: 10.3390/foods6070051.
The water aquifers of the regions of Asopos River in Viotia and Messapia in Evia (Greece) have been contaminated with hexavalent chromium (Cr (VI)) and bivalent nickel (Ni (II)). Given that these areas are the two biggest tuber producing regions of Greece, in our previous work, the cross-contamination of the food chain with these two heavy metals was quantified. In the present study, the potential of sunflower () cultivation in these regions is evaluated. The scope of our study was to investigate the uptake of chromium and nickel by sunflower, in a greenhouse experiment. The study included two cultivation periods of plants in six irrigation lines with different levels of Cr (VI) and Ni (II) ranging from 0 μg/L (control) to 10,000 μg/L. In all plant parts, statistically significant increased levels of Cr (VI) and Ni (II) were found when compared to control ones. Also, a positive correlation, both for Cr and Ni, between levels of heavy metals in irrigation water and plants was observed. Following European Food Safety Authority recommendations, the obtained oil was evaluated as safe for consumption, therefore, sunflower cultivation could be a valid bioremediation solution for the Asopos and Messapia regions.
维奥蒂亚的阿索波斯河地区以及埃维亚岛的迈萨皮亚地区（希腊）的含水层已被六价铬（Cr(VI)）和二价镍（Ni(II)）污染。鉴于这些地区是希腊最大的两个块茎生产区，在我们之前的工作中，已对这两种重金属在食物链中的交叉污染进行了量化。在本研究中，评估了在这些地区种植向日葵（）的潜力。我们研究的范围是在温室实验中调查向日葵对铬和镍的吸收情况。该研究包括在六个灌溉线路中种植植物的两个时期，灌溉水中Cr(VI)和Ni(II)的含量水平不同，范围从0 μg/L（对照）到10,000 μg/L。与对照相比，在所有植物部位均发现Cr(VI)和Ni(II)的含量有统计学显著增加。此外，还观察到灌溉水中重金属含量与植物中重金属含量之间，铬和镍均呈正相关。遵循欧洲食品安全局的建议，所获得的油被评估为可安全食用，因此，向日葵种植可能是阿索波斯和迈萨皮亚地区一种有效的生物修复解决方案。
