Biosurfactants are amphiphilic secondary metabolites produced by microorganisms. Marine bacteria have recently emerged as a poptential source for these natural products which exhibit surface-active properties, making them useful for diverse applications such as detergents, wetting and foaming agents, solubilisers, emulsifiers and dispersants. Although precise structural data are often lacking, the already available information from biochemical analyses and genome sequences of marine microbes indicate a high structural diversity including a broad spectrum of fatty acid derivatives, lipoamino acids, lipopeptides and glycolipids. This article aims to provide an overview of the structural diversity of low molecular-weight biosurfactants produced by marine microbes reported until 2020. Furthermore, characterization of biosurfactants production in marine bacteria was carried out along with teir potential for biotechnological applications.
Keywords: marine biosurfactant, structural diversity, characterization, biotechnological applications