Lipase-catalyzed transesterification of ethyl ferulate with triolein in solvent-free medium
文献类型：期刊论文
| 作者 | Xia CG(夏春谷)
|
| 刊名 | Food Bioprod. Process.
 |
| 出版日期 | 2011 |
| 卷号 | 89页码:457-462 |
| 关键词 | α-tocopheryl ferulate lipase transesterification solvent-free medium vacuum-rotary evaporation |
| ISSN号 | 0960-3085 |
| 通讯作者 | 辛嘉英 |
| 中文摘要 | The lipase-catalyzed transesterification of ethyl ferulate with triolein in a solvent-free medium was investigated. Transesterificationwas catalyzed by immobilized lipase from Candida antarctica (Novozym 435), to form ferulyl oleins, a mixture of ferulyl diolein and ferulyl monoolein. These ferulated esters can be widely used as natural antioxidant in both lipid containing food and cosmetic applications. External mass transfer limitations were lowest, when the agitation speed was higher than 180 rpm. A linear relationship between the initial reaction rate and enzyme load up to 10% demonstrated that the internal diffusion limitations could be minimized. The effects of various parameters on yields and rates of reaction were studied in the absence of mass transfer limitations. The initial reaction rate increased when the reaction temperature was raised in the range of 45–65 ◦C, further increase to 70 ◦C decreased the final yield to 48.9%. The value of activation energy was calculated as 65.04 kJ/mol based on the Arrhenius law. Under the most favorable conditions, a kinetic model based on the ping–pong bi–bi mechanism with triolein inhibition was found to fit the initial reaction rate data verywell and the kinetic parameterswere evaluated by non-linear regression analysis. |
| 学科主题 | 物理化学 |
| 收录类别 | SCI |
| 资助信息 | the National Natural Science Foundation of China (20873034);the Program for New Century Excellent Talents in University (NCET-05-0356);the Scientific Research Fund of Heilongjiang Provincial Education Department and the Heilongjiang Provincial Nature Science Foundation of Chinese for support |
| 语种 | 英语 |
| WOS记录号 | WOS:000297081800029 |
| 公开日期 | 2012-11-23 |
| 源URL | [http://210.77.64.217/handle/362003/2224]  |
| 专题 | 兰州化学物理研究所_OSSO国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Xia CG. Lipase-catalyzed transesterification of ethyl ferulate with triolein in solvent-free medium[J]. Food Bioprod. Process.,2011,89:457-462. |
| APA | 夏春谷.(2011).Lipase-catalyzed transesterification of ethyl ferulate with triolein in solvent-free medium.Food Bioprod. Process.,89,457-462. |
| MLA | 夏春谷."Lipase-catalyzed transesterification of ethyl ferulate with triolein in solvent-free medium".Food Bioprod. Process. 89(2011):457-462. |
入库方式： OAI收割
来源：兰州化学物理研究所
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