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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
Author(s) -
Ortiz María Laura,
CámaraMartos Fernando
Publication year - 2018
Publication title -
cereal chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.558
H-Index - 100
eISSN - 1943-3638
pISSN - 0009-0352
DOI - 10.1002/cche.10094
Subject(s) - chemistry , zinc , manganese , biofortification , micronutrient , oryza sativa , copper , food science , trace element , brown rice , zoology , environmental chemistry , biochemistry , biology , organic chemistry , gene
Background and objectives Fe, Zn, Cu, and Mn contents as well as bioaccessible fractions of eight rice varieties were analyzed in order to evaluate them nutritionally. Findings Total trace element concentrations ranged between 5.90 and 15.3 mg/kg for Fe, 8.82–12.9 mg/kg for Zn, 1.45–5.59 mg/kg for Cu, and 2.45–13.6 mg/kg for Mn. Brown rice presented the highest trace element contents and at the same time the lowest bioaccessibility. A negative significant statistical correlation was found between dietary fiber and Mn bioaccessibility ( r = −0.872; p < 0.01). Significant statistical negative correlations were found between vegetable proteins of rice and trace elements bioaccessibility. Conclusions A probabilistic assessment (@Risk) used to determine the contribution of DRI for Fe, Zn, Mn, and Cu through the intake of 150–200 g of boiled rice showed that this food can be a proper source of Cu and to a lesser extent Mn but not in the case of Fe and Zn. Significance and novelty The present study develops a probabilistic model to evaluate the contributions to the DRI s of these micronutrients, from data of rice varieties consumption and their bioaccessibility—total content.