Chojnacka K
Institute of Inorganic Technology and Mineral Fertilizers, Wroclaw University of Technology, I-26, ul. Smoluchowskiego 25, 50-372 Wroclaw, Poland.
Talanta. 2006 Dec 15;70(5):966-72. doi: 10.1016/j.talanta.2006.05.063. Epub 2006 Jun 27.
Supplementation of microelements (Mn, Zn, Cu, Cr) to livestock diet is of particular concern. There are various mineral feed additives available on the market. The most frequently used are inorganic feed additives, characterized with low bioavailability and high toxicity. Also, organic feed additives are used, including amino acids chelates, in which bioavailability was greatly improved and toxicity reduced. The problem is high price of these products. Therefore, there is the need to search for new biological mineral feed additives with designed composition, that would be characterized with high bioavailability, low toxicity, low cost and that would also possess a nutritional value. Such a possibility offers biological materials. It was found that biomaterials have metal-binding capabilities. Metal ions may be bound to biomass via either biosorption or bioaccumulation process. When elaborating technology of the production of feed additives, containing simultaneously various elements, it is necessary to use the tool of multielemental analysis in order to simultaneously analyze the content of Mn, Zn, Cu, Cr. In the present work, ICP-OES multielemental analysis was used to investigate the process of production of mineral feed additives based on the biomass of aquatic plant Lemna minor. The effectiveness of the processes of biosorption and bioaccumulation of microelements by an aquatic plant L. minor was studied. The mechanism of the process as well as equilibrium was investigated with the use of multielemental analysis by ICP-OES Vista-MPX instrument from Varian (Australia).
向家畜日粮中添加微量元素（锰、锌、铜、铬）备受关注。市场上有各种矿物饲料添加剂。最常用的是无机饲料添加剂，其特点是生物利用率低且毒性高。此外，也使用有机饲料添加剂，包括氨基酸螯合物，其生物利用率大大提高且毒性降低。问题在于这些产品价格高昂。因此，有必要寻找具有特定组成的新型生物矿物饲料添加剂，其应具有高生物利用率、低毒性、低成本且还具有营养价值。生物材料提供了这样一种可能性。已发现生物材料具有金属结合能力。金属离子可通过生物吸附或生物累积过程与生物质结合。在研发同时含有多种元素的饲料添加剂生产技术时，有必要使用多元素分析工具以便同时分析锰、锌、铜、铬的含量。在本研究中，采用电感耦合等离子体发射光谱法（ICP - OES）多元素分析来研究基于水生植物浮萍生物质的矿物饲料添加剂的生产过程。研究了水生植物浮萍对微量元素的生物吸附和生物累积过程的有效性。使用澳大利亚瓦里安公司的ICP - OES Vista - MPX仪器通过多元素分析研究了该过程的机制以及平衡。
