Production of coal-solubilizing activity byPaecilomyces Sp. during submerged growth in defined liquid media

  • B. D. Faison
  • S. N. Lewis
Session 4 Biological processing of fossil fuels


Paecilomyces TLi, a fungus isolated from coal, had previously been shown to transform solid coal into a water-miscible liquid during surface growth on coal or on a complex, solid microbiological medium. Coal solubilization has now been demonstrated in submerged cultures grown in defined liquid minimal media. Activity under these conditions is less than that observed in surface culture, and is affected by both nitrogen and carbon nutrition. Coal solubilization occurs at low pH (≤ 4) but may be associated with pH increases during the assay period. Spectroscopic data suggest a role for alkaline catalysis in coal solubilization by this organism.

Index Entries

Coal Paecilomyces subituminous coal coal solubilization biosolubilization 


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Copyright information

© Humana Press Inc. 1989

Authors and Affiliations

  • B. D. Faison
    • 1
  • S. N. Lewis
    • 1
  1. 1.Chemical Technology DivisionOak Ridge National LaboratoryOak Ridge

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