壳聚糖硫酸盐催化合成没食子酸丙酯  

SYNTHESIS OF PROPYL GALLATE WITH CHITOSAN SULFATE CATALYST

作　　者：刘长春[1] 

机构地区：[1]江苏食品职业技术学院生物工程系,江苏淮安223001

出　　处：《精细石油化工》2004年第4期16-18,共3页Speciality Petrochemicals

摘　　要：以壳聚糖硫酸盐为催化剂,用没食子酸与正丙醇酯化合成了没食子酸丙酯(PG),用正交实验得到了最佳工艺条件为:醇酸摩尔比10:1,催化剂用量为1.0 g(对没食子酸60 g),反应时间为4 h,PG的收率可达91.3％。结果表明,该催化剂用于合成PG具有极好的催化活性和重复使用性。Propyl gallate was synthesized by esterification of gallic acid and n-propyl alcohol with chitosan sulfate as catalyst. Through orthogonal experiments, the optimal reaction conditions were obtained as follows: the molar ratio of alcohol to acid is 10:1, the quantity of catalyst is 1.0 g (to 60 g gatlic acid), reaction time is 4 h, the yield of PG is 91.3%. The results indicated that chitosan sulfate has good catalytic activity and could be used repeatedly.

关 键 词：没食子酸丙酯 壳聚糖硫酸盐 催化合成 最佳工艺条件 醇酸摩尔比 催化剂用量 重复使用性 酯化合成 正交实验 反应时间 催化活性 正丙醇 PG 

分 类 号：TS202.3[轻工技术与工程—食品科学] TQ414[轻工技术与工程—食品科学与工程]