罗非鱼下脚料蛋白水解液制备锌蛋白盐的研究

Study on zinc protein chelate of proteinhydrolyzate from byproduct of Tilapia

摘要: 以罗非鱼下脚料蛋白水解液为原料,经过超滤处理后,对锌蛋白盐的合成工艺条件进行了初步探讨。结果显示最佳螯合条件为:pH6.0,80℃,14min,配位比为1.5:1,ZnSO4为锌源,此条件下,锌的螯合率为68.12%。并采用红外光谱对锌蛋白盐进行定性分析,结果显示,氨基的特征吸收峰发生了红移,初步证实了螯合物的存在。

Abstract: The ultrafiltration of proteinhydrolyzate from byproduct of Tilapia was used as the material, and the chelate condition of zinc protein was studied.The best condition of chelate was:pH6.0, 80℃, 14min, AA/Zn 2 + ratio 1.5:1, ZnSO 4 as zinc source.Then the chelation of zinc was 68.12%.And the product was testified by IR.The amino characteristic peak moved to infrared direction.This verified the existence of zinc protein chelate.