摘要
本文以木薯淀粉和硬脂酸为原料,用盐酸作为催化剂,采用干法合成制备硬脂酸木薯淀粉酯。通过正交实验得出了合成硬脂酸木薯淀粉酯的最优工艺条件:淀粉100g(干基),初始水分质量分数20%,温度140℃,硬脂酸质量分数3%,反应时间2h,2mo1/L盐酸量0.8mL。得到的产品取代度为0.006426,反应效率为37.61%。
Stearate cassava starch was prepared via esterificaiton of cassava starch and stearic acid with hydrochloric acid as catalyst by dry processing. The optimum processing conditions were gained by orthogonal test, as follows： starch amount of 100g （absolutely dry）, the initial water content of 20%, temperature of 140 ℃, stearic acid of 3%, reaction time of 2h, HC 1 （2mo 1 / L） of 0.8mL. Under those conditions, DS of the product was 0.006426, and its reaction efficiency was 37.61%.
出处
《现代食品科技》
EI
CAS
2009年第9期1052-1054,共3页
Modern Food Science and Technology
基金
高等学校博士学科点专项科研基金(20070561078)
广东省产学研结合项目(2007B090400003)
广东省科技攻关项目(2008B021100016)
关键词
正交试验
木薯淀粉
取代度
反应效率
perpendicular experiments
cassava starch
degree of substitute
reaction efficiency
