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World Journal of Microbiology and Biotechnology

, Volume 24, Issue 9, pp 1999–2002 | Cite as

Aerobic heterotrophic bacteria and petroleum-utilizing bacteria from cow dung and poultry manure

  • S. B. Akinde
  • O. Obire
Article

Abstract

In this study, enumeration and identification of total aerobic heterotrophic bacteria and petroleum-utilizing bacteria as well as the degradative potential of petroleum-utilizing bacterial isolates were carried out. The average counts of total aerobic heterotrophic bacteria in cow dung and poultry manure were 74.25 × 105 c.f.u. g−1 and 138.75 × 105 c.f.u. g−1 respectively. Acinetobacter sp, Bacillus sp, Pseudomonas sp, and Serratia spp. occurred as aerobic heterotrophs in both cow dung and poultry manure. However, Alcaligenes spp. occurred only in cow dung while, Flavobacterium sp, Klebsiella sp, Micrococcus sp, and Nocardia spp. occurred only in poultry manure as aerobic heterotrophs. The average counts of petroleum-utilizing bacteria in cow dung and poultry manure were 9.25 × 105 c.f.u. g−1 and 17.25 × 105 c.f.u. g−1 respectively. Pseudomonas spp. occurred as petroleum utilizer in both cow dung and poultry manure. However, Bacillus spp. occurred only in cow dung while Acinetobacter spp. and Micrococcus spp. occurred only in poultry manure as petroleum utilizers. Relative abundance of petroleum utilizers in total aerobic heterotrophs ranged from 6.38% to 20.00% for cow dung and from 9.38% to 17.29% for poultry manure. Introduction of pure cultures of petroleum-utilizing bacteria from cow dung and poultry manure into sterile oil-polluted soil revealed oil degradation in one week period.

Keywords

Bioremediation Cow dung Heterotrophic bacteria Petroleum-utilizing bacteria Poultry manure Soil 

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Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  1. 1.Fugro Consultants Nigeria LimitedPort HarcourtNigeria
  2. 2.Applied and Environmental Biology DepartmentRivers State University of Science and TechnologyPort HarcourtNigeria

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