Acyl migration in enzymatic interesterification of triacylglycerols : Effects of lipases from Thermomyces lanuginosus and Rhizopus oryzae, support material, and water activity
The enzymatic interesterification of a solvent-free, equimolar mixture of trilaurin and 1,3-palmitin-2-olein was studied using three immobilized lipase preparations as catalysts. Analysis of triacylglycerol (TAG) content and fatty acid (FA) distribution monitored the lipase-catalyzed interesterification in sn-1,3 positions and FA exchange in the sn-2 position caused by acyl migration. Lipase from