Quantification, speciation and bioaccessibility of selenium from Se-rich cereals cultivated in seleniferous soils of India

摘要

The chemical speciation of selenium (Se) is a critical consideration in assessing its bioavailability and toxicity. In plants, selenate and selenite are the major inorganic forms of Se that are readily absorbed and assimilated to organic Se compounds. Consequently, the non-volatile organic Se forms are key to the bioavailability and transfer to animals and human.