用固体葡萄糖合成焦糖色素(酿造型)的工业化试验

Industrial experiment of synthetic caramel pigment from solid dextrose

以固体葡萄糖为原料,氨水为催化剂,在常温下合成液体焦糖色素的工艺研究,探讨了催化剂分次添加的适宜时间,相同工艺条件下用液体和固体葡萄糖做原料合成焦糖色素的对比试验,得出了催化剂的最佳加入时间为反应进行到220,310,370,430 min时,反应温度控制在100~105℃,总反应时间480 min。在此工艺条件下,焦糖色素的出品率可以达到89%,红色指数为5.38。

The industrial study of synthesis of caramel pigment from solid dextrose under ammonia catalyzing was introduced.The effects of adding times of catalyst on the color of the pigment were examined.The equal of conditions,Synthesis of caramel pigment from liquid and solid dextrose as raw material were studied.The results showed that the optimum time of adding catalyst was： 220,310,370,425 min,reaction temperature 100~105 ℃,reaction time 460 min.The produce ratio and red index of caramel pigment reached 89% and 5.367,respectively.