食品工业科技2013，Vol.34Issue(15)：216-219,4.
食品抗氧化剂没食子酸正辛酯的绿色合成新工艺
Green synthesis of new process for food antioxidant n-octyl gallate
摘要
Abstract
n-octyl gallate was synthesized by n-octanol and gallic acid with sodium bisulfate as catalyst under microwave irradiation.The reaction products were structurally identified by means of melting point measurement and infrared(IR) spectral analysis.Factors affecting the yield of esterification,such as microwave irradiation power and time,molar ratio of gallic acid to n-octanol,dosage of catalyst and catalyst reuse were studied.Through orthogonal experiments,the optimum reaction conditions were as follows:0.025mol gallic acid,microwave power 360W,the molar ratio of gallic acid and n-octanol 1∶18,dosage of catalyst 1.25 g,for 15 min,with no water-carrying reagent.Under the above conditions,the yield of n-octyl gallate could reach up to 91.2％.The results indicated that sodium bisulfate had good catalytic activity and could be used repeatedly,over the traditional heating methods,the optimized method showed the advantages of shorter reacting time and lower energy consumption.关键词
食品抗氧化剂/没食子酸正辛酯/微波辅助/硫酸氢钠Key words
food antioxidant/ n-octyl gallate/ microwave irradiation/ sodium bisulfate分类
轻工纺织引用本文复制引用
王玉昆,杜彩云,尚小妹..食品抗氧化剂没食子酸正辛酯的绿色合成新工艺[J].食品工业科技,2013,34(15):216-219,4.基金项目
邯郸市科学技术研究与发展计划项目(1223108086-5) （1223108086-5）
河北省科技计划项目(12206808D). （12206808D）
