Depside

A depside is a type of polyphenolic compound composed of two or more monocyclic aromatic units linked by an ester group. Depsides are most often found in lichens, but have also been isolated from higher plants, including species of the Ericaceae, Lamiaceae, Papaveraceae and Myrtaceae.

Certain depsides have antibiotic, anti-HIV, antioxidant, and anti-proliferative activity in vitro. As inhibitors of prostaglandin synthesis and leukotriene B₄ biosynthesis, some depsides have in vitro anti-inflammatory activity.

A depsidase is a type of enzyme that cuts depside bonds. One such enzyme is tannase.

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