Process Biochemistry, volume 35, issue 9, pages 889-896

Degradation of petroleum hydrocarbons by facultative anaerobic bacteria under aerobic and anaerobic conditions

V.G. Grishchenkov 1
R.T. Townsend 2
T. J. McDonald 2
R. L. Autenrieth 2
J A Bonner 2
A. M. Boronin 1
Publication typeJournal Article
Publication date2000-05-01
scimago Q2
SJR0.701
CiteScore8.3
Impact factor3.7
ISSN00329592, 13595113
Biochemistry
Applied Microbiology and Biotechnology
Bioengineering
Abstract
Nitrate-reducing bacterial strains ( Pseudomonas sp. BS2201, BS2203 and Brevibacillus sp. BS2202) isolated from petroleum-contaminated soil were capable of degrading petroleum hydrocarbons under aerobic and anaerobic conditions. Under aerobic conditions (a 10-day experiment in liquid media) the strains degraded 20–25% of the total extractable material (TEM), including up to 90–95% of all alkanes analyzed ( n -C 10 –C 35 ). Under anaerobic conditions (a 50-day experiment) these organisms degraded 15–18% of the TEM, 20–25% of some alkanes, and 15–18% of selected polycyclic aromatic hydrocarbons. The strains also degraded saturated hydrocarbons under anaerobic conditions in the absence of nitrates as electron acceptors.
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