The principal theme of this PhD thesis is focused on the effect that changes on the nature of the irrigation method of rice play on the bioaccumulation of some toxic elements (As, Cd, Cr, Sb, Hg, Pb, and Tl) or potentially toxic oligoelements (Al, Cu, Fe, Mn, Mo, Ni, Se, and Zn) in rice kernels. The bioaccumulation of harmful elements in rice grain is the most threatening reason of health concern for the strong consumers of this staple food for mankind. Three different irrigation methods have been considered (continuous flooding, periodical saturation, and sprinkler irrigation) as well as soils of different geopedological nature and pollution levels. Also, the effect has been evaluated on a large number of rice genotypes. The main goal reached is to find out the possibility that, working only on the nature of the irrigation method of the rice plant, it is possible to get environmentally friendly rice, characterized by both a smallest concentration of toxic elements and the highest level of food safety.
Toxic and trace elements in rice: analytical methods, bioconcentration, influence of irrigation techniques
LANGASCO, ILARIA
2021-02-04
Abstract
The principal theme of this PhD thesis is focused on the effect that changes on the nature of the irrigation method of rice play on the bioaccumulation of some toxic elements (As, Cd, Cr, Sb, Hg, Pb, and Tl) or potentially toxic oligoelements (Al, Cu, Fe, Mn, Mo, Ni, Se, and Zn) in rice kernels. The bioaccumulation of harmful elements in rice grain is the most threatening reason of health concern for the strong consumers of this staple food for mankind. Three different irrigation methods have been considered (continuous flooding, periodical saturation, and sprinkler irrigation) as well as soils of different geopedological nature and pollution levels. Also, the effect has been evaluated on a large number of rice genotypes. The main goal reached is to find out the possibility that, working only on the nature of the irrigation method of the rice plant, it is possible to get environmentally friendly rice, characterized by both a smallest concentration of toxic elements and the highest level of food safety.File | Dimensione | Formato | |
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tesi dottorato_ilaria langasco.pdf
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Descrizione: tesi di dottorato_ilaria langasco
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