What is Serrapeptase? (AKA: serrapeptidase, serratiopeptidase) Serrapeptase is an enzyme derived from a species of bacteria originally found in the intestine of silkworms.  The bacteria, Serratia mercesans E1 produces the enzyme that enables the silkworm to dissolve its silken cocoon and emerge after metamorphosis.  Serratia is now grown in cultures to produce serrapeptase by fermentation.  Numerous research and clinical studies have demonstrated serrapeptase has anti-inflammatory, proteolytic (protein dissolving) and fibrinolytic (fibrin dissolving) properties. They also show that scar tissue is greatly reduced, and proteins involved in the inflammatory process are effectively digested by serrapeptase.