分子蒸馏富集华山松籽油中亚油酸的研究  

Enrichment of linoleic acid from Pinus armandi Franch seed oil by molecular distillation

作　　者：郭剑霞[1] 王昌禄[1] 吴志建[1] 陈勉华[1] 王玉荣[1] 李风娟[1] 

机构地区：[1]食品营养与安全教育部重点实验室,天津科技大学食品工程与生物技术学院,天津300457

出　　处：《中国油脂》2011年第4期40-43,共4页China Oils and Fats

基　　金：国家高技术研究发展计划“863计划”资助项目(2007AA100404)

摘　　要：对华山松籽油先进行乙酯化,然后利用刮膜式分子蒸馏器对其中的亚油酸进行富集。考察了进料速率、进料温度、蒸馏温度和刮膜转速对华山松籽油中亚油酸分离效果的影响。结果表明,刮膜式分子蒸馏技术提纯华山松籽油中亚油酸的最佳工艺条件为:蒸馏温度105～115℃,进料速率60～80 mL/h,进料温度55～60℃,操作压力1.0 Pa,刮膜转速200 r/m in。经过四级分子蒸馏,可以将华山松籽油原料中的亚油酸纯度由原来的63.3%提高至82.7%。The Pinus armandi Franch seed oil was esterified with ethanol, and then was separated to enrich linoleic acid by wiped - film molecular distiller. The effect of feed rate, feed temperature, distillation temperature,and agitating speed on separation of linoleic acid was discussed. The result showed that the optimum conditions for the enrichment of linoleic acid by molecular distillation were as follows ： distillation temperature 105 - 115 ℃, distillation pressure 1.0 Pa, feed rate 60 - 80 mL/h, feed temperature 55 - 60℃ , agitating speed 200 r/min. The purity of linoleic acid from Pinus armandi Franch seed oil could be improved from 63.3% to 82.7% by 4 stages molecular distillation.

关 键 词：华山松籽油 分子蒸馏 亚油酸 富集 

分 类 号：TQ641[化学工程—精细化工] TQ028