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Andrianos, V;Stoikou, V;Tsikrika, K;Lamprou, D;Stasinos, S;Proestos, C;Zabetakis, I
Current Research In Nutrition And Food Science
Carotenoids and Antioxidant Enzymes as Biomarkers of the Impact of Heavy Metals in food Chain
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Antioxidant enzymes (catalase and peroxidase) and carotenoids (lutein and (a) over cap -carotene) are often used as biomarkers of metal contamination of water and agricultural soils. In this study, the effects of heavy metals present in irrigation water on the aforementioned carotenoids of potatoes (Solanum tuberosum L.) and carrots (Daucus carota L.), cultivated in a greenhouse and irrigated with a water solution including different levels of Cr(VI) and Ni(II) were investigated. These results were compared to the levels of the same metabolites that had been assessed in market-available potato and carrot samples. The findings indicated that the levels of the examined metabolites on the treated with Cr and Ni samples, resemble the levels of the same parameters in the market samples, originating from polluted areas. Therefore, the antioxidant enzymes, catalase and peroxidase, and the carotenoids, lutein and (a) over cap -carotene, could be handled as indicators of heavy metal pollution.
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