文献类型： 外文期刊
作者： Zhang Kangyi 1 ; Zhang Lixia 2 ; Qu Lingbo 1 ; Wang Xingguo 3 ; Liu Yuanfa 3 ;
作者机构： 1.Zhengzhou Univ, Dept Chem, Zhengzhou 450061, Peoples R China
2.Henan Acad Agr Sci, Inst Agr Prod Proc, Zhengzhou 450002, Peoples R China
3.Jiangnan Univ, Sch Food Sci & Technol, Wuxi 214122, Peoples R China
关键词： lysophospholipid;acyl migration;mechanism;effective factors
期刊名称：CHINESE JOURNAL OF ORGANIC CHEMISTRY （ 影响因子：1.652； 五年影响因子：1.2 ）
ISSN： 0253-2786
年卷期： 2014 年 34 卷 12 期
页码：
收录情况： SCI
摘要： The specificity hydrolysis Sn-1 fatty acyl of phospholipids by phospholipase A(1) and the phenomenon of acyl migration in Sn-2-lysophosphatidylcholine (Sn-2-LPC) were demonstrated through C-13 NMR, which provided fundamental basis for enzymatic reaction solution of phosphatidylcholine (PC) including Sn-1-lysophosphatidylcholine, Sn-2-LPC, and L-alpha-glycerylphosphorylcholine. Based on the automatic acyl migration mechanism of monoglycerides,,the automatic acyl, migration mechanism of Sn-2-LPC was speculated in the acid condition or alkali condition. The effects of reaction parameters on the acyl migration were then explored, including the polarity of the solution, pH, temperature, substrate concentration, and reaction time. The conditions of low acyl migration were as follows: isopropanol solvent, pH 7 similar to 8, temperature<35 degrees C, defined substrate concentration, shorten reaction time. These results contributed to a data support for the synthesis of acyl mixture of phospholipids, detection of specific phospholipase A(1), and the explanation of biosynthetic pathway (lysophospholipid intermediate) of the production mixed phospholipid.
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