Lipase-Catalyzed Synthesis of Sugar Fatty Acid Esters in Supercritical Carbon Dioxide
Fatty acid monoesters and diesters of sugars are widely used as emulsifiers in a great variety of food and cosmetics formulations (1). Traditionally, these surfactants are produced by transesterification at high temperatures in the presence of an alkaline catalyst. Among drawbacks of the conventional chemical process, significant coloration of the final product and the formation of undesirable side products are especially worth mentioning. Consequently, the enzyme-catalyzed regioselective acylation of sugars in nonpolar organic solvents and supercritical fluids (SCFs) at ambient temperatures has received much attention in recent years (2-5).
KeywordsSupercritical Fluid Fatty Acid Ester Supercritical Carbon Dioxide Phenylboronic Acid Alkaline Catalyst
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