“…Natural and synthetic effectors of these enzymes are of great interest. We discovered the inhibitors and activators of these enzymes in marine invertebrates and brown algae [9][10][11]. Similar to amylases, laminarinases (1,3-β -D -glucanases; EC 3.2.1.39 and 3.2.1.58) are widespread in nature; however, they have been studied considerably less.…”