Transformer oil degradation by an indigenous microflora isolated from a contaminated soil

N. G. Rojas-Avelizapa, R. Rodríguez-Vázquez, F. Enríquez-Villanueva, J. Martínez-Cruz, H. M. Poggi-Varaldo

Research output: Contribution to journalConference articlepeer-review

27 Scopus citations


In this study polychlorinated biphenyls (PCBs, mostly penta to heptachlorinated isomers) from transformer oil were degraded under aerobic conditions in liquid culture using a mixed culture isolated from a soil contaminated with polychlorinated biphenyls and other hydrocarbons. Microorganisms in the mixed culture were identified as Comamonas acidovorans, Acinetobacter calcoaceticus, Achromobacter sp., Pseudomonas sp., Flavobacterium devorans, Bacillus lentus, Bacillus mascerans and Bacillus thuringiensis. A fungus of the genus of Paecilomyces and one strain belonging to Actinomyces were partially identified. The mixed culture could remove 75% of PCBs (88% w/v in the transformer oil). Our results provide evidence that naturally occurring aerobic microorganisms in the soil have the potential to attack PCBs. Copyright (C) 1999 Elsevier Science B.V.

Original languageEnglish
Pages (from-to)15-26
Number of pages12
JournalResources, Conservation and Recycling
Issue number1-2
StatePublished - 1 Jul 1999
Externally publishedYes
EventProceedings of the 1998 4th International Symposium of the International Society for Environmental Biotechnology - Belfast, UK
Duration: 20 Jun 199825 Jun 1998


  • Identification
  • Isolation
  • Native microflora
  • Polychlorinated biphenyls
  • Soil
  • Transformer oil


Dive into the research topics of 'Transformer oil degradation by an indigenous microflora isolated from a contaminated soil'. Together they form a unique fingerprint.

Cite this