Gas phase transesterification reactions catalyzed by lipolytic enzymes

Porcine pancreatic lipase and Fusarium solani cutinase were used to catalyze transesterification reactions between methyl propionate, ethyl propionate, and a series of primary alcohols at high temperatures in a continuous packed‐bed gas‐solid reactor, in which the solid phase is composed of the enzyme and the substrates and products are in a gaseous form. In this type of system, enzyme activity was found to depend essentially on the water activity ( A w ) of the enzyme preparation.