Correlation of Mineral Elements Between Milled and Brown Rice and Soils in Yunnan Studied by ICP-AES
ZENG Ya-wen1, 3, WANG Lu-xiang2, DU Juan1, YANG Shu-ming1, WANG Yu-chen1, 4, LI Qi-wan2, SUN Zheng-hai1, 5, PU Xiao-ying1, DU Wei1
1. Biotechnology and Genetic Resources Institute, Yunnan Academy of Agricultural Sciences, Kunming 650205, China 2. Institute of Quality Standards and Testing Technology, Yunnan Academy of Agricultural Sciences, Kunming 650223, China 3. School of Agriculture and Bio-Technique, Yunnan Agricultural University, Kunming 650201, China 4. School of Life Science, Yunnan University, Kunming 650091, China 5. School of Horticulture and Gardening, Southwest Forestry University, Kunming 650224, China
Abstract：In the present paper, the contents of 18 mineral elements in milled and brown rice of 55 accessions elite cultivars as well as corresponding soils were determined by ICP-AES technique. The method proves to be simple, rapid, highly sensitive and accurate, and can be used to determine many elements at the same time, its recovery ratio obtained by standard addition method ranged between 93.1% and 110.2%, and its RSD was from 0.8% to 5.1%. The analytical results showed that 18 mineral elements (S, Mo, Ba, Ni, Fe, Cr, Na, Al, Cu, P, Sn, Zn, B, Mn, Mg, Ca, Sr and K) are the important active compositions of functional rice, and their mean contents in milled rice are in the order of P>K>S>Mg>Ca>Zn>Na>Al>Mn>Fe>Cu>B>Mo>Ni>Sn>Cr>Ba>Sr, in brown rice in the order of P>K>Mg>S>Ca>Zn>Mn>Al>Na>Fe>Cu>B>Mo>Sn>Ni>Cr>Ba>Sr, but in soil in the order of Fe> Al>Ca>K>Mg>P>S>Mn>B>Na>Ba>Zn>Cr>Cu>Ni>Sn>Mo>Sr; 16 mineral elements in milled and brown rice (except for S and P) are clearly lower than that in soils. The correlation of 8 microelements (Mo, Ni, Cr, Sr, Mn, Zn, Cu and Na) in milled and brown rice is closer than that of 6 macroelements (P, K, Mg, Ca, S and Al). There are rich Fe, Al and Ca in Yunnan soils, but 4 elements (P, K, Mg and S) are in high priority in milled and brown rice; The milled rice used for the staple is easier to place a premium on chronics than brown rice. The above results provided reliable data and theory bases for genetic breeding and production of functional rice, and for further solving the chronics and the malnourished problems with insufficient Fe, Zn and Ca for 4 billion people in the world.
Key words：ICP-AES;Mineral elements;Milled rice;Brown rice;Correlation;Soils in Yunnan
曾亚文1, 3, 汪禄祥2, 杜娟1, 杨树明1, 王雨辰1，4, 黎其万2, 孙正海1, 5, 普晓英1,杜威1 . ICP-AES法检测云南稻精米和糙米与土壤矿质元素间的关联性[J]. 光谱学与光谱分析, 2009, 29(05): 1413-1417.
ZENG Ya-wen1, 3, WANG Lu-xiang2, DU Juan1, YANG Shu-ming1, WANG Yu-chen1, 4, LI Qi-wan2, SUN Zheng-hai1, 5, PU Xiao-ying1, DU Wei1. Correlation of Mineral Elements Between Milled and Brown Rice and Soils in Yunnan Studied by ICP-AES . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2009, 29(05): 1413-1417.
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