Biotechnology Letters

, Volume 18, Issue 3, pp 235–240 | Cite as

Production of biosurfactants by Cladosporium resinae

  • Joaquín M. Muriel
  • José M. Bruque
  • José Manuel Olías
  • Alfonso Jiménez-Sánchez


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 properties. A partial purification by collapsed foam gave better physical properties by decreasing surface tension and increasing foaming power and stabilization of emulsions. Surface active substances were purified by reversed phase chromatography. Six compounds representing over 75% of fraction containing surface activity were present. This fraction gave an improvement of all surface properties.


Foam Hydrocarbon Surface Tension Surface Activity Reversed Phase 
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Copyright information

© Chapman & Hall 1996

Authors and Affiliations

  • Joaquín M. Muriel
    • 1
  • José M. Bruque
    • 2
  • José Manuel Olías
    • 3
  • Alfonso Jiménez-Sánchez
    • 1
  1. 1.Departamento de Bioquímica y Biología Molecular y GenéticaUniversidad de ExtremaduraBadajozSpain
  2. 2.Departamento de Física Aplicada, Facultad de CienciasUniversidad de ExtremaduraBadajozSpain
  3. 3.Instituto de la Grasa, C.S.I.C.SevillaSpain

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