African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12474

Full Length Research Paper

Influence of pH, temperature and glucose on biodegradation of 4-aminophenol by a novel bacterial strain, Pseudomonas sp. ST-4

Sumera Afzal Khan1#, Muhammad Hamayun2#, Abdul Latif Khan2, Bashir Ahmad1, Safia Ahmed3 and In-Jung Lee2*
1Center of Biotechnology and Microbiology, University of Peshawar, Pakistan 2School of Applied Biosciences, Kyungpook National University, Korea 3Department of Microbiology, Quaid-i-Azam University, Pakistan 4Kohat University of Science & Technology, Kohat Pakistan
Email: [email protected]

  •  Accepted: 17 April 2009
  •  Published: 18 August 2009

Abstract

Aromatic compounds such as 4-aminophenol are toxic to the environment and thusshould be eliminated effectively. Biodegradation of aromatic compounds is an efficient and environment friendly technique as addition of selected microbes does not add any kind of pollutants and actively remove even the most recalcitrant pollutants. We investigated the effectiveness of Pseudomonas sp. strain ST-4 in the biodegradation of 4-aminophenol under variable pH, temperature and glucose regimes and sorted out optimum conditions for maximum biodegradation of 4-aminophenol. Maximum biodegradation of 4-aminophenol by Pseudomonas sp. strain ST- 4 was observed at pH 8, temperature 30°C and glucose concentration of 15 mM at 72 h, respectively.

 

Key words: Biodegradation, 4-aminophenol, Pseudomonas sp. ST-4pH,temperature, glucose.