β Scribed by Lang, S. ;Katsiwela, Eleftheria ;Wagner, F.
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Some biosurfactants possess antimicrobial properties. Gram-positive bacteria were more sensitive against the detergents than Gram-negative bacteria, which were weakly or not inhibited. Especially sophoro-and rhamnolipids prevented the growth of Gram-positive bacteria; the conidia germination of the fungus Glomcrelfa cingufatu was influenced by sophoro-, rhamno-, trehalose-and cellobiose-lipids, resp. In the case of the Gramnegative bacterium Pseudomom Muginom not inhibited by those surfactants, our studies indicated that the glycolipids are hydrolyzed by enzymatic reactions.
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Microbial biosurfactants Surfactants and emulsifiers are widely used for food, cosmetic and pharmaceutical applications. Most compounds are still synthesized chemically from hydrocarbons, however surface-active molecules of biological origin -so called biosurfactants -have gained considerable intere
Cladosporium resinae produces extracellular biosurfactants when growing in a hydrocarbon source such as the jet fuel Jp8. This production of biosurfactants was observed by the reduction of the surface tension of the aqueous phase of growing medium, and by the increase in emulsion and foaming propert