Application of ICP-MS to Detection of Mineral Elements and Heavy Metals in Cassava’s Byproducts
TAO Hai-teng1, ZHANG Chun-jiang1, CHEN Xiao-ming1, Lü Fei-jie2*, TAI Jian-xiang2, LI Kai-mian3
1. College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China 2. Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China 3. Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou 571737, China
Abstract：Cassava is a main cultivated tropical crop in China, its rich starch roots are often used to produce fuel ethanol in recent years, so it’s a kind of hot biomass energy crops. But cassava’s byproducts such as leaves, stems and peels are regarded as waste, and are not fully utilized. Cassava’s byproducts contain many nutrients, and can be used to process high value food products. The contents of mineral elements and heavy metals in cassava’s byproducts were studied by ICP-MS. The results showed that cassava’s byproducts contained many elements necessary to human health, the sequence of macroelements was K>Ca>P>Mg>S>Mn>Zn>Na>Fe>B>Cu, particularly, the contents of Fe, Mn, Zn and B ranged from 10 to 800 μg·g-1(DW), while the contents of microelements including Mo, Co, Se and Ge ranged from 0.01 to 0.2 μg·g-1(DW), which are important to human health. Besides macroelements and microelements, the contents of heavy metals (As, Cr, Pb and Hg) were also important to identify the quality of farm products, and the results showed that cassava’s byproducts contained little heavy metals except Pb (2.19 μg·g-1(DW) in stalk peels). All the data showed that cassava’s byproducts accorded with the national hygiene standards.
陶海腾1,张春江1,陈晓明1,吕飞杰2*,台建祥2,李开绵3 . ICP-MS测定木薯生产副产物的矿质元素和有害重金属元素[J]. 光谱学与光谱分析, 2009, 29(07): 1983-1985.
TAO Hai-teng1, ZHANG Chun-jiang1, CHEN Xiao-ming1, Lü Fei-jie2*, TAI Jian-xiang2, LI Kai-mian3 . Application of ICP-MS to Detection of Mineral Elements and Heavy Metals in Cassava’s Byproducts. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2009, 29(07): 1983-1985.
