Abstract
Mineral nutrition of potassium (K), calcium (Ca), sodium (Na), magnesium (Mg), iron (Fe), zinc (Zn), copper (Cu) and manganese (Mn) are important for human health. The method of inductively coupled plasma mass spectrometry (ICP-MS) was employed to determinate the contents of K, Ca, Na, Mg, Fe, Zn, Cu and Mn in milled rice (Oryza sativa L.) of 274 rice genotypes. The results showed that the visible difference could be found for the contents of eight elements in milled rice among rice genotypes studied. It existed the possibility to select the genotype(s) with abundant of mineral nutrient from the genetic resource. Meanwhile, the contents of mineral elements in brown rice were significantly higher than those in milled rice. The averages of K, Mn and Cu contents of indica rice were significantly lower than those of japonica rice, while no significant difference was found for other five element contents between indica and japonica rice genotypes. The average contents of Na and Cu in non-glutinous rice genotypes were higher than those in glutinous ones, whereas the averages of K and Mn contents in non-glutinous rice genotypes were lower in present experiment. Additionally, the K, Ca and Mg contents of milled rice from white brown rice were significantly higher than those from red brown rice, and Ca content of milled rice from white brown rice was also visibly higher than that from black brown rice. For microelements, significant difference was observed for Zn content between milled rice from red and white brown rice, or between milled rice from red and black brown rice. Some genotypes with abundant mineral nutrient in milled rice had been selected and could be used in rice nutrient breeding.
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Acknowledgments
The project is supported by Program for Key International Cooperative Project from the Science and Technology Ministry of China (2006DFA31030), HarvestPlus-China Program (No. 8022), Science and Technology Office of Zhejiang Province (No. 011102471 and 2004C22009), and 151 Foundation for the Talents of Zhejiang Province.
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Jiang, S.L., Wu, J.G., Thang, N.B. et al. Genotypic variation of mineral elements contents in rice (Oryza sativa L.). Eur Food Res Technol 228, 115–122 (2008). https://doi.org/10.1007/s00217-008-0914-y
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DOI: https://doi.org/10.1007/s00217-008-0914-y