高温气相色谱法分析油脂随机酯交换反应程度研究  

Analysis of the Degree of Oil Random Interesterification by High Temperature Gas Chromatograph

作　　者：赵金利[1,2] 汪勇[1,2] 滕英来 李爱军[1,2] 张宁[1,2] 

机构地区：[1]暨南大学食品科学与工程系 [2]暨南大学-萨斯喀切温大学油料生物炼制与营养联合实验室,广州510632

出　　处：《中国粮油学报》2015年第10期117-122,共6页Journal of the Chinese Cereals and Oils Association

基　　金：广东省战略性新兴产业核心技术攻关(2012A080800013)

摘　　要：以大豆油和极度氢化棕榈油为原料进行酯交换反应,利用高温气相色谱法分析反应前后各种三酰甘油组成的变化,研究了不同催化剂催化酯交换反应的酯交换率,从而评判催化剂催化效果。采用此方法,利用单因素试验对Lipozyme 435脂肪酶催化大豆油与极度氢化棕榈油酯交换的参数进行了研究,得到适合的反应条件为:反应温度90℃、反应时间4 h、加酶量4%(占油脂总质量)、大豆油与氢化棕榈油质量比4∶3。在此条件下反应随机酯交换率为98.3%。The catalytic interesterification of soybean oil with fully hydrogenated palm oil has been studied in the paper. High temperature gas chromatograph was utilized to investigate the degree of interesterification of different catalyst. The reaction conditions of using Lipozyme 435 as catalyst was optimized by Single Factor Method experiments; the optimum conditions were temperature of 90 ℃, time of 4 h, enzyme dosage of 4% （ of the total oil mass）, and mass ratio of soybean oil to fully hydrogenated palm oil of 4： 3. On the optimum conditions, the rate of random interesterification could be 98.3%.

关 键 词：气相色谱 酯交换 LIPOZYME 435脂肪酶 非均相催化 

分 类 号：TQ641[化学工程—精细化工]