低4-甲基咪唑含量的焦糖色素制备工艺的研究

摘要

Low 4-methyl imidazole caramel pigment was prepared with refined sugar molasses as raw materials by means of ammonia method. Through the single factor experiments, main factors that affect the 4-methyl imidazole of caramel pigment and their levels of following orthogonal experiment were determined. The orthogonal experiment results showed that the preparation conditions of caramel pigment with low 4-methyl imidazole were as follows: the reaction temperature of 115℃, reaction time of 90 min, dropwise adding of ammonium salt during reaction and ammonium salt content of 6%.%本文以精炼糖糖蜜为原料，采用氨法成功制备出低4-甲基咪唑含量的焦糖色素。通过单因素试验研究，确定了影响焦糖色素中4-甲基咪唑含量的主要因素及其合理的正交实验水平范围，再以正交实验确定制备低4-甲基咪唑含量焦糖色素的工艺为：反应温度115℃，反应时间90 min，在反应过程中逐滴加入铵盐，铵盐添加量为6%。