亚临界水状态下制备共轭亚油酸甘油酯

doi:10.7506/spkx1002-6630-201308003

食品科学 ›› 2013, Vol. 34 ›› Issue (8): 12-15.doi: 10.7506/spkx1002-6630-201308003

亚临界水状态下制备共轭亚油酸甘油酯

王雪，李万振，宋鹏，刘鑫，于殿宇

东北农业大学食品学院，黑龙江哈尔滨 150030

收稿日期:2012-08-18 修回日期:2013-02-28 出版日期:2013-04-25 发布日期:2013-05-07
通讯作者: 于殿宇 E-mail:dyyu2000@yahoo.com.cn
基金资助:
国家十二五科技支撑计划：大豆油加工关键技术和装备研究与示范

Preparation of Conjugated Linoleic Acid glyceride by direct esterification under the condition of subcritical water

WANG Xue，LI Wan-zhen，SONG Peng，LIU Xin，YU Dian-yu

College of Food Science, Northeast Agricultural University, Harbin 150030, China

Received:2012-08-18 Revised:2013-02-28 Online:2013-04-25 Published:2013-05-07

摘要/Abstract

摘要： 在亚临界水的状态下，以共轭亚油酸(CLA)和甘油为原料，采用直接酯化法合成CLA甘油酯。通过单因素试验，考察反应温度、反应时间、反应物物质的量比(CLA:甘油)、反应压力对CLA转化率的影响；并在单因素水平的基础上，进行响应面优化，确定反应的最佳条件为反应温度250℃、反应时间40min、反应物物质的量比2:1、反应压力13MPa，在优化出的最佳条件下进行反应，得到的CLA转化率为96.3%，所得CLA甘油酯为淡黄的油状透明液体。

关键词: 亚临界水, 共轭亚油酸(CLA), 共轭亚油酸甘油酯(CLA甘油酯), CLA转化率

Abstract: In this study, preparing conjugated linoleic acid glycerides from conjugated linoleic acid (CLA)and glycerin by direct esterification under the condition of subcritical water was sdudied,the effects of, temperature, time, reactant molar ratio（CLA：glycerin）,pressure on the impact of the conversion rate of CLA was studied. Through single factor test, and on the basis of the level of the single factors,through the response surface optimization determine the optimum conditions of reaction: The temperature of reaction is 250 ℃,the time of reaction is 40min,Substrate molar ratio is 2:1, the pressure of reaction is 13Mpa,conversion rate of Conjugated linoleic acid was 96.3%,the resulting conjugated linoleic acid glycerides is yellow oily transparent liquid.

Key words: subcritical water, conjugated linoleic acid (CLA), conjugated linoleic acid glyceride (CLA glyceride)

中图分类号:

TS229

王雪，李万振，宋鹏，刘鑫，于殿宇. 亚临界水状态下制备共轭亚油酸甘油酯[J]. 食品科学, 2013, 34(8): 12-15.

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亚临界水状态下制备共轭亚油酸甘油酯

Preparation of Conjugated Linoleic Acid glyceride by direct esterification under the condition of subcritical water

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