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    • 20. 发明公开
    • PROCESS FOR THE PRODUCTION OF PHOSPHOLIPIDS
    • 生产磷脂的方法
    • EP1412511A2
    • 2004-04-28
    • EP02728001.5
    • 2002-05-02
    • Enzymotec Ltd.
    • BASHEER, SobhiZUABI, RassanSHULMAN, AvidorMAR-CHAIM, Neta
    • C12P9/00C07F9/10C12P7/62C12P13/00
    • C07F9/10C12P7/6481C12P9/00C12P13/001C12P13/06
    • The present invention provides a new enzymatic process for preparing 1,2-diacylated phospholipids comprising the use of an enzyme preparation possessing phospholipase activity towards acylation at the sn-1 and sn-2 sites in a microaqueous reaction system. More particularly, the 1,2-diacyl-phospholipids produced according to the esterification/transesterification process of the present invention are obtainable in high yield and purity and carry identical desired carboxylic acid, preferably fatty acid, acyl groups at the sn-1 and sn-2 positions. The process involves esterification/transesterification (acylation) of a glycerophospholipid, preferably glycerophosphoryl choline (GPC) with a desired carboxylic acid, preferably fatty acid, or their derivatives in the presence of the above mentioned appropriate enzyme preparation. The process of the invention further relates to a process for the production of 1-acyl-2-lyso-glycerophospholipid, preferably 2-lyso-PC by reacting glycerophospholipid, preferably glycerophosphoryl choline (GPC) with a desired carboxylic acid, preferably fatty acid, or their derivatives in the presence of a sn-1 specific phospholipase (PLA1 or PLA1,2) and a solvent, in a microaqueous medium.
    • 本发明提供了一种用于制备1,2-二酰化磷脂的新的酶促方法,包括在微水相反应体系中使用具有磷脂酶活性的酶制剂,用于在sn-1和sn-2位点进行酰化。 更特别地,根据本发明的酯化/酯交换方法制备的1,2-二酰基 - 磷脂可以以高收率和纯度获得,并且在sn-1和sn上携带相同的期望的羧酸,优选脂肪酸,酰基 -2个职位。 该方法包括在上述合适的酶制剂存在下,将甘油磷脂,优选甘油磷酰胆碱(GPC)与期望的羧酸,优选脂肪酸或其衍生物进行酯化/酯交换(酰化)。 本发明的方法还涉及通过使甘油磷脂,优选甘油磷酰胆碱(GPC)与所需羧酸,优选脂肪酸反应来生产1-酰基-2-溶血甘油磷脂,优选2-溶血PC的方法, 或它们的衍生物在存在sn-1特异性磷脂酶(PLA1或PLA1,2)和溶剂的情况下在微水介质中进行。