Bioaccessibility of trace elements and chromium speciation in commonly consumed cereals and pulses

Abstract

Copper, manganese, and chromium content and their bioaccessibility were determined in commonly consumed cereals and pulses. Copper, manganese, and chromium concentration of these grains ranged from 0.19 to 1.22, 0.46 to 8.12, and 0.02 to 0.11 mg/100 g, respectively. Bioaccessibility of these minerals from the grains ranged from 6.6 to 32.5% (copper), 15.5 to 43.5% (manganese), and 2.66 to 36.4% (chromium). In terms of bioaccessibility of these minerals, pulses provided more than cereals. Speciation analysis of chromium by selective alkaline method demonstrated the presence of the toxic hexavalent chromium in lower concentration than trivalent form. ARTICLE HISTORY

Heavy metal content in green matter of field pea and spring triticale mixtures and their usage determination as green fodder for animals

“…The highest Cr content was found in spring triticale, while the lowest in field pea. The results obtained confirm the studies of other authors who found excessive Cr content in cereal crops (Brigide et al, 2014;Pirsaheb et al, 2016) and who found a lower amount of this element in legumes (Kumari, Platel, 2017). Thus, the addition of field pea to the mixture with spring triticale resulted in a lower Cr content in the obtained green matter.…”

Bioaccessibility and total content of iron, zinc, copper, and manganese in rice varieties (Oryza sativa L.): A probabilistic assessment to evaluate their contribution to dietary reference intake

“…The variety with the lowest total Cu content was Bomba (1.45 mg/kg; see Table 3). These values are in agreement with those reported by previous research such as 0.50-3.3 mg/kg (Islam, Ahmed, & Habibullah-Al-Mamun, 2014) and 1.90 mg/kg (Kumari & Platel, 2017).…”

“…In fact, a significant statistical difference (p < 0.05) was found between the highest concentration and the rest of studied varieties. Results reported in this study are in agreement with those found in previous studies such as 6.20 mg/kg (Manjusha, Dash, Karunasagar, & Arunachalam, 2008) or 6.24 mg/kg (Kumari & Platel, 2017). Furthermore, it was also found for this trace element that the varieties which presented the highest Mn concentrations also showed high concentration for the rest of analyzed trace element.…”

“…Bioaccessibility of Cu varied significantly among the rice varieties examined, ranging from 24% (Brown Rice) to 80% (Bomba Rice) in solubility assay and from 4% (Redondo Rice) to 41% (Bomba Rice) in dialyzability assay. In comparison with other vegetable foods, rice presented a high Cu bioaccessibility for most studied varieties which has already been found in previous studies (Kumari & Platel, 2017).…”

“…In comparison with other vegetable foods, rice presented a high Cu bioaccessibility for most studied varieties which has already been found in previous studies (Kumari & Platel, 2017). In comparison with other vegetable foods, rice presented a high Cu bioaccessibility for most studied varieties which has already been found in previous studies (Kumari & Platel, 2017).…”