Les recherches sur les surfactants, agents utilisés comme émulsifiants ou dispersants, sont stimulées par les préoccupations écologiques. De nombreux microorganismes producteurs de surfactants biodégradables pourraient permettre, à l’ avenir, de mieux lutter contre les pollutions.
Surfactants are surface-active compounds capable of reducing surface and interfacial tension at the interfaces between liquids, solids and gases, thereby al- lowing them to mix or disperse readily as emulsions in water or other liquids. The enormous market demand for […]
Ibrahim M. Banat & Andrea Franzetti & Isabella Gandolfi & Giuseppina Bestetti & Maria G. Martinotti & Letizia Fracchia & Thomas J. Smyth & Roger Marchant
Microorganisms synthesise a wide range of surface-active compounds (SAC), generally called biosurfactants. These compounds are mainly classified according to their molecular weight, physico-chemical properties and […]
High-molecular-weight (HMW) surface-active agents (biosurfactants and bioemulsifiers) are produced by many different types of bacteria and comprise proteins, glycoproteins, lipoproteins, polysaccharides, lipopolysaccharides or complexes containing any combination of these structural types. The attraction of HMW glycoprotein bioemulsifiers as ingredients in food and drink […]
In this study, we investigated the yield and physicochemical properties of the high molecular weight extracellular polymeric substance (HMW–EPS) produced by Halomonas sp. strain TG39 when grown on different types and ratios of substrates. Glucose (1% w/v) and a peptone/yeast extract ratio of 5.1 […]