酯化度: 在食品化学中,酯化度(DE)被定义为:酯化的D-半乳糖醛酸基在全部D-半乳糖醛酸基中所占的分数×100。 羧基酯化的百分数称为酯化度(DE) 纤维素分子链上每100个葡萄糖基上羟基酯化的个数
研究了在催化剂存在下低酯化度果胶与甲醇进行的甲酯化反应。
The methyl- esterification reaction of low -methoxyl pectin with methylalcohol by the presence of some catalysts was observed .
在最佳工艺条件下反应得到蔗糖多酯产率达到89.12%,酯化度6.8。
Under the optimum conditions the sucrose polyester (SPE) yield attained 89.12%, and the esterification degree reached 6.8.
该工艺合成的蔗糖多酯平均酯化度为6.5 以上,产品得率达90% 以上。
The average ester degree is 6.5 and yields are greater than 90%.
应用推荐