CARICA-PAPAYA LATEX LIPASE - SN-3 STEREOSELECTIVITY OR SHORT-CHAIN SELECTIVITY - MODEL CHIRAL TRIGLYCERIDES ARE REMOVING THE AMBIGUITY

被引:45
作者
VILLENEUVE, P [1 ]
PINA, M [1 ]
MONTET, D [1 ]
GRAILLE, J [1 ]
机构
[1] CIDAD CP,LIPOTECH LAB,F-34032 RENNES,FRANCE
关键词
CARICA PAPAYA LATEX; CHIRAL TRIGLYCERIDE; ENZYMATIC HYDROLYSIS; RACEMIC TRIGLYCERIDE; STEREOSPECIFICITY; TYPOSELECTIVITY;
D O I
10.1007/BF02635668
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Short-chain fatty acids are usually located at position sn-3 in natural triglycerides, particulary in dairy fats. As a result, it is extremely difficult to differentiate between sn-3 stereospecificity and short-chain typoselectivity in many lipases and acyltransferases that perform in this way. This ambiguity can be removed through successive use of a chiral triglyceride with a short fatty acid in position sn-1 and of its racemic in controlled hydrolysis reactions. After checking that the proposed method effectively confirmed the type of activity of control biocatalysts (Candida cylindracea nonspecific lipase and Mucor miehei 1-3 regiospecific lipase), we confirmed that Carica papaya latex has a strict sn-3 stereospecificity.
引用
收藏
页码:753 / 755
页数:3
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