华南理工大学学报(自然科学版) ›› 2007, Vol. 35 ›› Issue (6): 106-110.

• 化学化工 • 上一篇    下一篇

脂溶性绿原酸月桂酸酯的研制及表征

向智男1  战宇2  宁正祥1   

  1. 1.华南理工大学 轻工与食品学院,广东 广州 510640; 2. 广州大学 化学化工学院,广东 广州 510091
  • 出版日期:2007-06-25 发布日期:2007-06-25
  • 通信作者: 向智男(1982-),女,博士生,主要从事食品化学研究。 E-mail:xiangwanzi2003@163. com
  • 作者简介:向智男(1982-),女,博士生,主要从事食品化学研究。
  • 基金资助:

    广东省科技计划项目( 2005 A20303002) ;广州市科技局项目(2006J1 -C0251 )

Preparation and Characterization of Liposoluble Chlorogenic Laurate

Xiang Zhi-nαn1  Zhan Yu2  Ning Zheng-xiang1   

  1. 1. School of Light Industry and Food Sciences , South China Univ. of Tech. , Guangzhou 510640 , Guangdong , China;2. School of Chemistry and Chemical Engineering , Guangzhou Univ. , Guangzhou 510091 , Guangdong , China
  • Online:2007-06-25 Published:2007-06-25
  • Contact: 向智男(1982-),女,博士生,主要从事食品化学研究。 E-mail:xiangwanzi2003@163. com
  • About author:向智男(1982-),女,博士生,主要从事食品化学研究。
  • Supported by:

    广东省科技计划项目( 2005 A20303002) ;广州市科技局项目(2006J1 -C0251 )

摘要: 绿原酸是一种天然酚类抗氧化剂,已应用于食品、医药、日用化工等行业中.然而,其易溶于水难溶于油的特性使其应用受到了限制.文中对绿原酸进行了改性,即在碱性催化剂催化的条件下使其与月桂酰氯进行非水相的酯化反应,得到了脂溶性的绿原酸月桂酸酯.经过单因素及正交试验,确定了最佳合成条件为:以N ,N-二甲基甲酰胺作为溶解、稀释剂,绿原酸/月桂酰氯/三乙胺的摩尔比为1:1: 1. 5 ,温度控制在35 ℃ ,反应时间8h. 在此条件下,可得到微黄色粉状固体产物绿原酸月桂酸酯,其产率为8 1. 24%.文中还通过UV-Vis , IR 、ESI-MS , IHNMR 及元素分析法对产物的结构进行了表征,并采用量子化学计算论证了该分子修饰的可行性和合理性.

关键词: 绿原酸, 绿原酸月桂酸酯, 脂溶性, 表征

Abstract:

Chlorogenic acid (CGA) , a kind of natural antioxidant , has been widely applied to the fields of food , medicine and daily chemical industry. However , its application is restricted by its good water-solubility and weak liposolubility. In this research , liposoluble chlorogenic laurate (CGL) was synthesized by the acylation with lauroyl chloride (LC) in the existence of alkali catalyst in non-water phase , and yellowish CGL powders with a yield of 81. 24% were obtained under the optimal synthesis conditions determined via single-factor tests and orthogonal experiments , that is , carrying out the acylation at 35  ℃ for 8 h with a nCGA : nLC : nTEA ratio of 1: 1: 1. 5 and with dimethylformamide as the solvating agent and the thinner. Then , the structure of CGL was characterized by means of UV -Vis , IR , ESI-MS , 1 HNMR and element analytical method. The feasibility and rationality of the molecule modification for CGA were finally demonstrated by the method of quantum chemistry calculation.

Key words: chlorogenic acid, chlorogenic laurate, liposolubility, characterization