无溶剂体系中脂肪酶催化合成癸酸甘油酯

Synthesis of Medium-Chain Capric Acid Glycerides by Using Immobilized Lipase in a Solvent-Free System

研究了无溶剂体系中固定化脂肪酶催化癸酸和甘油合成癸酸甘油酯 ,并与油酸进行对比。癸酸和油酸分别在 50℃和 6 0℃下获得最高平衡转化率。在开口反应器中 ,加酶量 1 0 0u/g ,50℃下癸酸最高平衡转化率为 90 % ,移去水的方法不同对最终转化率影响很大。

Enzymatic synthesis of medium\|chain glycerides was studied by using capric acid and glycerol as substrates for immobilized lipase without any solvents, and compared with oleic acid. Maximum initial reaction rate was obtained at 50℃ for capric acid and 60℃ for oleic glyceride synthesis. The conversion of capric acid was 90% by adding 100u/g of lipase in opened batch reactor at 50℃. The final conversion was greatly influenced by the methods to remove water.