[Yeasts utilizing the surface-active substance Laurox-9]

Mikrobiologiia. 1988 Mar-Apr;57(2):223-30.
[Article in Russian]


Yeasts capable of utilizing the non-ionogenic surfactant Laurox-9 were identified as Cryptococcus humicolus (Daszewska) Golubev and Rhodotorula mucilaginosa (Jöerg) Harrison. IR spectrometry used for the quantitative assay of Laurox-9 showed that R. mucilaginosa utilized it as a sole carbon source. The first step of Laurox-9 metabolism was its hydrolytic cleavage yielding lauric acid and polyethyleneglycol. Optimal conditions were found for the electron-cytochemical localization of hydrolase involved in the primary degradation of Laurox-9 by yeasts. Its localization of the exocellular components was established.

MeSH terms

  • Cryptococcus / enzymology
  • Cryptococcus / growth & development
  • Cryptococcus / ultrastructure
  • Hydrolases / metabolism
  • Microscopy, Electron
  • Polyethylene Glycols / metabolism*
  • Rhodotorula / enzymology
  • Rhodotorula / growth & development
  • Rhodotorula / ultrastructure
  • Spectrophotometry, Infrared
  • Surface-Active Agents / analysis
  • Surface-Active Agents / metabolism*
  • Water Pollutants, Chemical
  • Yeasts / enzymology*


  • Surface-Active Agents
  • Water Pollutants, Chemical
  • Polyethylene Glycols
  • laurox 9
  • Hydrolases