食品科学 ›› 2006, Vol. 27 ›› Issue (10): 229-233.

• 工艺技术 • 上一篇    下一篇

VE阿魏酸酯的酶法合成及抗氧化性的研究

 辛嘉英,  郑妍,  赵冠里,  吴小梅,  夏春谷,  李树本   

  1. 哈尔滨商业大学食品工程学院; 中国科学院兰州化学物理研究所羰基合成与选择氧化国家重点实验室
  • 出版日期:2006-10-15 发布日期:2011-11-16

Studies on Enzymatic Synthesis of Alpha-tocopheryl Ferulate and Its Antioxidative Effect in the Edible Oils

XIN  Jia-Ying,   Zheng-Yan,   Zhao-Guan-Li,   Wu-Xiao-Mei,   Xia-Chun-Gu,   Li-Shu-Ben   

  1. 1.College of Food Engineering, Harbin University of Commerce, Harbin 150076, China; 2.State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
  • Online:2006-10-15 Published:2011-11-16

摘要:  本文研究了脂肪酶催化阿魏酸与VE的酯化反应。采用TLC和HPLC方法对产物进行了定性定量分析,并将纯化后的产物通过红外光谱及核磁氢谱进行结构表征。探讨了反应时间、温度、底物比及摇床转速对VE阿魏酸酯的产率的影响,确定了反应的最佳条件:阿魏酸乙酯与VE的底物比为1:5,反应温度45℃,摇床转速150r/min,初始含水量为零时,产率最高为72.3%。以猪油为作用底物,对其抗氧化活性进行了测定。最终确定VE阿魏酸酯在猪油中的添加量为0.04%时,即具有明显的抗氧化活性;当添加量达到0.06%时,其抗氧化能力大于BHT、PG。

关键词: 阿魏酸, VE阿魏酸酯, 脂肪酶, 抗氧化

Abstract: Alpha-tocopheryl Ferulate was synthesized by Candida rugosa Lipase (CRL) in toluene. The products were purified and separated by TLC and HPLC, then was identified by IR and H1NMR. The result indicated that the yield of alpha- tocopheryl ferulate was enhanced greatly when the molar ration of ethyl ferulate to tocopherol was 1:5 and temperature was 45℃. The reaction was carried out in a closed reactor shaken at 150r/min with 1mmol ethyl ferulate, 5mmol tocopherol, 5ml toluene and 70mg CRL. After 72h reaction, the yield was arrived at 72.3%. The antioxidative activity of alpha-tocopheryl ferulate was also investigated through surveying the activity in lard. It was finally confirmed that it had obviously antioxidative activity when adding amount in lard was 0.06%, it had better antioxidative than BHT, PG when adding amount in lard was 0.08%.

Key words:  , ferulic acid; alpha-tocopheryl; lipase; antioxidative;