DEGRADATION OF PETROLEUM BY AN ALGA, 'PROTOTHECA ZOPFIL'

Prototheca zopfii is an achlorophyllous alga which degrades oil. It has been found to degrade 10 and 40% of a motor oil and crude oil, respectively, when tested under appropriate conditions. Degradation of the crude oil observed in this study compares well with the amount of degradation accomplished by bacteria, P zopfii was found to degrade a greater percentage of the aromatic hydrocarbons in motor oil than of the saturated hydrocarbons and a greater percentage of saturated hydrocarbons in crude oil than of aromatic hydrocarbons. Resins and asphaltenes were produced during degradation of motor oil, whereas these fractions in crude oil were degraded. P. zipfii did not demonstrate preferential utilization of lower homologues of cycloalkanes and aromatics as has been observed with bacteria. (Author)

  • Supplemental Notes:
    • Also published in Applied Microbiology, V30 N1, pp 79-81, July 1975.
  • Corporate Authors:

    University of Maryland, College Park

    Department of Microbiology
    College Park, MD  United States  20742
  • Authors:
    • Walker, J D
    • Colwell, R R
    • Petrakis, L
  • Publication Date: 1975-1-21

Media Info

  • Pagination: 5 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00129892
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: Tech Rpt.
  • Contract Numbers: N00014-67-A0239-0027
  • Files: TRIS
  • Created Date: Mar 10 1976 12:00AM