Production and properties of biosurfactants from a newly isolated Pseudomonas fluorescens HW-6 growing on hexadecane.

  title={Production and properties of biosurfactants from a newly isolated Pseudomonas fluorescens HW-6 growing on hexadecane.},
  author={Evgenia Vasileva-Tonkova and Danka Galabova and Emilia Stoimenova and Zdravko Lalchev},
  journal={Zeitschrift fur Naturforschung. C, Journal of biosciences},
  volume={61 7-8},
The newly isolated from industrial wastewater Pseudomonas fluorescens strain HW-6 produced glycolipid biosurfactants at high concentrations (1.4-2.0 g l(-1)) when grown on hexadecane as a sole carbon source. Biosurfactants decreased the surface tension of the air/ water interface by 35 mN m(-1) and possessed a low critical micelle concentration value of 20 mg l(-1), which indicated high surface activity. They efficiently emulsified aromatic hydrocarbons, kerosene, n-paraffins and mineral oils… CONTINUE READING
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