结构化的类脂化合物在 Thermomyces lanuginose 脂肪分解酵素(Lipozyme TL IM ) 催化的连续反应与中等链的 triacylglycerol (MCT ) 通过大豆油的 sn-1,3-specific interesterification 被生产。便宜 Lipozyme TL IM 介绍类似的 interesterification 象在批反应的昂贵的 Rhizomucor miehei 的度(标志) , sn-1,3-specificity 和剩余活动。在有 Lipozyme TL IM 催化的 MCT 的大豆油的包装床 interesterification,住处时间在标志上有重要效果,当温度在 45 –70 有小效果时; °C。当反应温度比 60 高时, Lipozyme TL IM 的 sn-1,3-specificity 不是令人满意的; °C。最佳的住处时间和温度是 30 –40 ; min 和 55 ; °C 分别地。在溶剂之中,包括丙酮, isopropanol, tert-butanol,和 isobutanol,过去常恢复使用的 Lipozyme TL IM 的活动,丙酮比另外的溶剂是最合适的。
The structured lipids are produced through sn-l,3-specific interesterification of soybean oil with medium-chain triacylglycerol (MCT) in continuous reactions catalyzed by Thermomyces lanuginose lipase (Lipozyme TL IM). Cheap Lipozyme TL IM presents similar interesterification degree (ID), sn-l,3-specificity and residual activity as expensive Rhizomucor miehei in batch reactions. In packed-bed interesterification of soybean oil with Mcr cat- alyzed by Lipozyme TL IM, the residence time has a significant effect on ID, while temperature has a small effect at 45-70 ℃. The sn-l,3-specificity of Lipozyme TI. IM is not satisfactory when reaction temperature is higher than 60 ℃. The optimal residence time and temperature are 30-40 min and 55 ℃, respectively. Among the solvents, including acetone, isopropanol, tert-butanol, and isobutanol, used to recover the activity of the used Lipozyme TL IM, acetone is the most suitable one than the other solvents.