食品科学 ›› 2007, Vol. 28 ›› Issue (11): 360-364.

• 生物工程 • 上一篇    下一篇

单辛酸甘油酯的酶法合成

 张春鸣, 赵文秀, 陈峰, 徐学明   

  1. 江南大学食品学院; 江南大学食品学院 江苏无锡214122; 江苏无锡214122; 江苏无锡214122食品科学与技术国家重点实验室;
  • 出版日期:2007-11-15 发布日期:2011-11-22

Lipase-catalyzed Synthesis of Glycerol Monocaprylate

 ZHANG  Chun-Ming, ZHAO  Wen-Xiu, CHEN  Feng, XU  Xue-Ming   

  1. 1.School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; 2.State Key Laboratory of Food Science and Technology, Wuxi 214122, China
  • Online:2007-11-15 Published:2011-11-22

摘要: 以Novo435固定化脂肪酶为催化剂,在无溶剂条件下催化甘油和辛酸合成单辛酸甘油酯。通过单因素试验确定加酶量、反应温度、反应时间三个因素的取值范围,并用响应面实验设计和分析方法对合成反应条件进行了优化。结果表明,在甘油辛酸摩尔比1:1、反应温度66.8℃、脂肪酶与反应底物质量比0.88%、无水的条件下反应11.5h,辛酸转化率达93.53%,单辛酸甘油酯含量为47.69%。

关键词: 单辛酸甘油酯, 合成, Novo435固定化脂肪酶

Abstract: Glycerol Monocaprylate was synthesized by glycerol and octanoic acid in a solvent free system, which was catalyzed by immobilized lipase-Novo435. The optimum conditions of synthesis were obtained through single factor test and response surface method, successively. When the ratio of glycerol to octanoic acid 1:1, the lipase dosage 0.88% (W/W) based on the reactant was employed in the reacting system, the conversion rate of octanoic acid could reach 93.53% at 66.8 ℃ for 11.5 h reaction. The content of glycerol monocaprylate was about 47.69% in the reacting production .

Key words: glycerol monocaprylate, synthesis, immobilized lipase-Novo435