Encapsulation of lipases on coordination polymers and their catalytic performance in glycerolysis and esterification  

作　　者：Can Zeng Nanjing Zhong 

机构地区：[1]School of Food Science,Guangdong Pharmaceutical University,Zhongshan 528458,China

出　　处：《Grain & Oil Science and Technology》2023年第3期113-119,共7页粮油科技（英文版）

基　　金：the National Natural Science Foundation of China(31772000)。

摘　　要：In this study,lipases of CALB(Candida antarctica lipase B),TLL(Thermomyces lanuginosa lipase),RML(Rhizomucor miehei lipase),CALA(Candida antarctica lipase A)and LU(Lecitase?Ultra)were encapsulated into the nucleotidehybrid metal coordination polymers(CPs)for diacylglyerols(DAG)preparation.Guanosine 5'-monophosphate(GMP)and adenosine 5'-monophosphate(AMP)were used as coordinating molecules,and metal ions of Fe^(3+),Ba^(2+),Mn^(2+),Ni^(2+)and Cr^(3+)were applied to prepare matrix.Results indicated that,besides Ba^(2+)with AMP,all other metal ions can coordinate with AMP and GMP to generate CPs.In addition,the AMP/Ni was amorphous when standing temperature was 4℃,while it was crystalline when standing temperature was from 30 to 180℃.DAG content from 47.55%to 64.99%was obtained from glycerolysis by CALB@GMP/Ba,RML@GMP/Ba,TLL@GMP/Ba,RML@GMP/Mn and TLL@GMP/Mn.Additionally,CALB@GMP/Fe showed selectivity towards DAG formation in the esterification and DAG content up to 61.88%was obtained.

关 键 词：LIPASE Coordination polymers ENCAPSULATION GLYCEROLYSIS ESTERIFICATION 

分 类 号：TQ426.97[化学工程]