复合氨基酸锌络合物的研制

Study on Compound Amino Acid Zinc Chelate

本文利用羽毛(或毛发)的酸水解液作为氨基酸来源,制备复合氨基酸微量元素络合物,作为一类新的动植物营养性添加剂。通过光谱分析(UV,IR)和电化学分析(浓差电位),重点考察了不同因素对复合氨基酸锌络合程度的影响。结果表明,在pH7、复合氨基酸和锌的摩尔比为1.5:1时,络合率可达98％以上。在实验基础上,本文提出了络合物的生产工艺流程,为工业化生产提供了依据。

Zinc chelate of compound amino acids made from feathers or hairs can be used as a new kind of nutritional supplement for animals and plants. The chelates were prepared dy hydrolyzing feathers or hairs with acid and then treating the hydrolyzate with divalent metal salts in neutral medium. The effect of various factors on the percentage of chelation was studied by spectroanalysis (UV, IR ) and electrochemical analysis(concentration potential). As a result, at pH 7 and the mole ratio of amino acids to zinc cation at least 1.5:1, the percentage of chelation was over 98%. The technological process of industrial production of the chelates is presented.