Effects of Rare Earth on Accumulation of Selenium in Soybean Sprouts
The selenium-enriched soybean sprouts were prepared by adding selenium and rare earth La<3+> into the cultivation solutions. The effect of rare earth La<3 +> on the accumulation of selenium in soybean sprouts was studied. When the concentration of La<3+> was below 6μg·ml<-1>, the contents of total selenium and organic selenium were both raised gradually, but decreased when the concentration of La<3+> was above 7μg·ml<-1>, the same trend occured also in the protein components extracted from selenium-enriched soybean sprouts. The highest selenium content 65.68μg· g<-1>, organic selenium content 53.58μg·g<-1> and selenium content of protein 31.57μg·g<-1> were all observed at La<3+> concentration of 6μg·ml<-1>. It was indicated that La<3+> could promote the uptake of selenium in the soybean sprouts at low concentrations. The contents of amino acids in protein were also increased when the concentrations of La<3+> was 6μg· ml<-1>, especially the contents of glutamic acid and aspartic acid were increased by 4％ and 3％ respectively.
selenium lanthanum soybean sprouts rare earths
Guo Xiaoling(郭晓玲) Hao Sue(郝素娥) Kuang Chong(况冲) Zhang Yongzhong(张永忠)
Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, China College of Science, Northeast Agricultural of University, Harbin 150030, China
国际会议
第五届国际稀土开发与应用研讨会(The Fifth International Conference on Rare Earth Decelopment and Applicatin)
包头
英文
501-504
2007-08-07（万方平台首次上网日期，不代表论文的发表时间）