Sugar Ester Modified Lipase Catalyzed Esterification in Organic Media

PAN Bing-Feng and LI Zu-Yi^*
( Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China )

Abstract　　The esterification reaction of a long-chain fatty acid and a fatty alcohol catalyzed by sugar ester-modified lipases in organic media was studied. The reaction activity was improved when the lipases were modified with sugar esters. Among four kinds of sugar esters and six kinds of lipases, lipase CES modified with sugar ester SE-7 showed the highest reaction activity. The pH, solvent and temperature on the reaction activity of SE-7 modified lipase CES were also studied.
Key Words　　Sugar ester; modification; lipase; esterification

Corresponding author: Tel, 86-21-64163300-1406; Fax, 86-21-64166128