Effect of the addition of microbial surfactants on hydrocarbon degradation in a soil population in a stirred reactor.
The hydrocarbon degradation rate could be doubled by the addition of sophorose lipids as biosurfactants in a model system containing 10% soil and a 1.35% hydrocarbon mixture of tetradecane, pentadecane, hexadecene, 1,2,4-trimethylcyclohexane, pristane (2,6,10,14-tetramethylpentadecane) phenyldecane and naphthalene suspended in mineral salts medium. The adaptation phases for two degradation phases were shortened, and the extent of degradation and final biomass were increased. The added biosurfactants were degraded after they had facilitated degradation of all hydrocarbon components.
Oberbremer
A
A
Institut für Biochemie und Biotechnologie, Brausnchweig, Federal Republic of Germany.
Müller-Hurtig
R
R
Wagner
F
F
D001673:Biodegradation, Environmental / Q000187:drug effects; D001709:Biotechnology; D006017:Glycolipids / Q000378:metabolism / Q000494:pharmacology; D006838:Hydrocarbons / Q000378:metabolism*; D010100:Oxygen; D012988:Soil Microbiology; D013501:Surface-Active Agents / Q000378:metabolism / Q000494:pharmacology
D006017:Glycolipids; D006838:Hydrocarbons; D013501:Surface-Active Agents; D010100:Oxygen