Archiv für Mikrobiologie

, Volume 88, Issue 2, pp 87–96 | Cite as

Assimilation of aliphatic hydrocarbons by Candida tropicalis

II. Fatty acid profiles from cells grown on substrates of different chain length
  • H. Hug
  • A. Fiechter


  1. 1.

    Several methods for the extraction of lipids from Candida yeast grown on n-alkanes were compared and evaluated. Special attention was paid to the completeness of extraction and to protect the unsaturated fractions from oxydation.

  2. 2.

    Significant alteration of the fatty acid composition during batch growth on hexadecane was observed. These changes make it necessary to harvest cells in a well defined state of the growing cell population.

  3. 3.

    If alkanes of chain length from C12 to C17 served as sole source of carbon fatty acids with corresponding chain length predominated. Even numbered alkane chains led to fatty acid profiles containing about 95% even numbered acids. Using odd numbered alkanes as substrates, the cells contained about 50% odd numbered fatty acids.

  4. 4.

    Cells grown on glucose and acetate media were also examined. Inhibition of de novo synthesis of fatty acids is stronger when the chain length of alkane substrates increases.



Hydrocarbon Assimilation Alkane Fatty Acid Composition Chain Length 
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Copyright information

© Springer-Verlag 1973

Authors and Affiliations

  • H. Hug
    • 1
  • A. Fiechter
    • 1
  1. 1.Institute of MicrobiologySwiss Federal Institute of TechnologyZürichSwitzerland

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