Profiling of selenium and other trace elements in breads from rice and maize cultivated in a seleniferous area of Punjab (India)

The objective of the study was to assess selenium and other elements levels in Indian Roti bread from Se-rich maize and rice using inductively coupled plasma mass-spectrometry. Se levels in Roti bread from Se-rich maize and rice exceeded those in the control samples by a factor of more than 594 and 156, respectively. Using Se-enriched maize increased bread Co, Cr, Mn, Mo, and Zn content, whereas Fe and I levels were reduced. In Se-rich rice-based bread a decrease in Co, Cr, Cu, Fe, I, Mo, and Zn contents was observed. Daily consumption of Se-rich maize and rice bread (100 g) could account for 5.665% and 4.309% from recommended dietary allowance, also exceeding the upper tolerable levels by a factor of 7.8 and 5.9, respectively. Therefore, Roti bread from both Se-rich maize and rice may be considered as an additional source of selenium. At the same time, regular intake of Se-rich grains and its products including breads may cause adverse health effects even after a few days and should be regularly monitored in order to prevent Se overload and toxicity. © 2020, Association of Food Scientists & Technologists (India).

Kirichuk A.A. 1 , Skalnaya M.G. 1, 2, 3 , Tinkov A.A. 2, 3, 4 , Ajsuvakova O.P. 2, 3, 4 , Prakash N.T.5 , Jaiswal S.K.6 , Prakash R.5 , Grabeklis A.R. 1, 2 , Zhang F.7 , Guo X.7 , Skalny A.V. 1, 2, 3
  • 1 Peoples’ Friendship University of Russia (RUDN University), Moskva, Russian Federation
  • 2 IM Sechenov First Moscow State Medical University, Moskva, 119146, Russian Federation
  • 3 Yaroslavl State University, Yaroslavl, 150000, Russian Federation
  • 4 Federal Research Centre of Biological Systems and Agro-technologies of the Russian Academy of Sciences, Orenburg, 460000, Russian Federation
  • 5 Thapar Institute of Engineering and Technology, Patiala, 147004, India
  • 6 Marwadi University, Rajkot, 360003, India
  • 7 School of Public Health, Health Science Center, Xi′an Jiaotong University, Xi’an, 710000, China
Iron; Manganese; Recommended daily allowance; Selenium; Zinc
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