Solid state biosurfactant production in a fixed-bed column bioreactor.

  title={Solid state biosurfactant production in a fixed-bed column bioreactor.},
  author={Vil{\'a}sia Guimar{\~a}es Martins and Susana Juliano Kalil and Telma Elita Bertolin and Jorge Alberto Vieira Costa},
  journal={Zeitschrift fur Naturforschung. C, Journal of biosciences},
  volume={61 9-10},
Biosurfactants are surface active substances which reduce interfacial tension and are produced or excreted at the microbial cell surface. We evaluated the biosurfactant production by Aspergillus fumigatus and Phialemonium sp. in solid state processes using fixed-bed column reactors. We evaluated two media, rice husks alone (simple support) and rice husks plus defatted rice bran (complex support), both enriched with either soy oil or diesel oil. The highest water-in-oil emulsifying activity (EAw… CONTINUE READING

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