Detection of Oleic Acid Biodegradation by Fungi

  • Han, Dong-Wook (Department of Medical Engineering, Yonsei University College of Medicine) ;
  • Suh, Hwal (Department of Medical Engineering, Yonsei University College of Medicine) ;
  • Lee, Dong-Hee (Department of Medical Engineering, Yonsei University College of Medicine) ;
  • Park, Bong-Joo (Department of Medical Engineering, Yonsei University College of Medicine) ;
  • Kosuke Takatori (Division of Microbiology, National Institute of Health Sciences) ;
  • Park, Jong-Chul (Department of Medical Engineering, Yonsei University College of Medicine)
  • Published : 2002.06.01

Abstract

To investigate oleic acid biodegradation, 47 fungal strains were tested with modified Czapek Dox broth media containing oleic acid, and their biodegradative activities were assayed by measuring the release of $[^14C]CO_2$ from the $^14C-$labeled oleic acid. After 72 h of cultivation, Aspergillus flavus, Aspergillus ochraceus, and Alternaria species metabolized approximately $25\%\;to\;35\%$ of the supplied oleic acid. The relationship between the fungal degradation of oleic acid and the fungal growth was also examined using 7 strains of Aspergillus niger. A. niger. YMC 0100 and YMC 0322 degraded about $26\%$ of the oleic acid after 72 h, while their germination ratios were more than $30\%$.

Keywords

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