It must be noted that the concatenation of reaction and membrane separation on catalytically active membranes is already well established, and has been reviewed extensively. For example, reviewed the applications of a wide range of polymeric catalytic membranes to intensify chemical processes. Also, conventional enzyme immobilization methods and strategies have already been extensively and thoroughly reviewed . These accounts focus on the detailed preparation and/or functionalization of various supports -including membranes -for enzyme immobilization. Also, some excellent reviews cover the interests of implementing EMR in organic synthesis, by gathering scholarly examples and/or providing useful insights on industrial process considerations. For example, the tutorial reviews by Sitanggang et al. and Dejonghe et al. summarize the interest of coupling enzymes (free or immobilized) with membrane reactors and exemplified their use in a selection of chemical processes.