水解氨基酸微量元素络合物食品添加剂的合成工艺研究

Study on the Synthesis Technology of Hydrolytic Amino Acid and Trace Element Complex Food Additives

利用豆粕的1398中性蛋白酶水解液作为复合氨基酸来源,对食品添加剂复合氨基酸锌络合物的合成工艺条件进行了初步研究。重点研究了配体摩尔比和pH值对络合反应的影响,确定合适的配比反应条件为配位摩尔比2:1,pH=8 .0 ,产品络合率达到98%以上。用化学分析法及红外光谱法鉴定了产品,初步试验得出复合氨基酸锌具有抗氧化性。

Micromineral zinc chelate of compound amino acids made from soy-cake hydrolysate of 1398 neutral proteinase.The synthetic conditions of zinc chelate of compound amino acids for food additive was studied with an emphasis on the chelating reaction.the optimum conditions for the synthesis were found a follows:the molar ratio of ligand 2:1;pH8.0.The percent chelation was over 98%.The yield was appraised by chemical analysis and IR method .And the zinc chelate of compound amino acids has the antioxidation.This study lays a foundtion for the further application.