Hansenula ciferrii

The second patent describes the use of a microbial mixed culture (Hansenula sydowiorum, Hansenula ciferrii, Hansenula lynferdii, and/or Cryptococcus albidus) in coal desulfurization [160], In this process, the raw mined coal is ground to a particle size smaller than 200 mesh forming a slurry with water, at a solids concentration of less than 40wt%. The bacterial cultures are then inoculated into the feedstock slurry. An incubation step is carried out at a temperature near 25°C and at a pH close to neutral. The highest removal achieved was in the range of 46% S removal. 

Stodola, F. H., and L. J. Wickerham Formation of extracellular sphingolipids by microorganisms. IT. Structural studies on tetraacetylphytosphingosine from the yeast Hansenula ciferrii. J. biol. CJhem. 235, 2584 (1960). 

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