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Nazir Ahmad,Iftikhar Ahmed,Armghan Shahzad,Nauman Khalid,Farrakh Mehboob,Karam Ahad,Ghulam Muhammad Ali 한국응용생명화학회 2014 Applied Biological Chemistry (Appl Biol Chem) Vol.57 No.3
Phenol is a toxic pollutant found in effluent ofnumerous industries and its elimination is a foremost challenge. The utilization of bacteria plays a crucial role in phenol bioremediation. For isolation of phenol degrading bacteria, sample was collectedfrom industrial waste and enriched in mineral salt medium (MSM)contained 300 mg/L phenol. The strain was identified based on16S rRNA gene analysis as Pseudomonas species and thephylogenetic analysis affiliated the strain with Pseudomonasmonteilii (AF064458) as the most closely related species. Phenoltolerance of the strain in MSM supplemented with variousconcentrations of phenol indicates that the strain NCCP-407 cangrow best at 750 mg L−1 phenol. The strain showed completedegradation of 750 mg L−1 phenol in 56 hours when supplementas a sole source of carbon and energy with the average degradationrate of 28mg L−1 h−1. The doubling time was recorded approximatelyas 12.49 h−1. The present study suggests that this strain is efficientin phenol degradation and can be used in treatment of wastewatercontaining phenol.
Ahmad, Nazir,Ahmed, Iftikhar,Shahzad, Armghan,Khalid, Nauman,Mehboob, Farrakh,Ahad, Karam,Ali, Ghulam Muhammad The Korean Society for Applied Biological Chemistr 2014 Applied Biological Chemistry (Appl Biol Chem) Vol.57 No.3
Phenol is a toxic pollutant found in effluent of numerous industries and its elimination is a foremost challenge. The utilization of bacteria plays a crucial role in phenol bioremediation. For isolation of phenol degrading bacteria, sample was collected from industrial waste and enriched in mineral salt medium (MSM) contained 300 mg/L phenol. The strain was identified based on 16S rRNA gene analysis as Pseudomonas species and the phylogenetic analysis affiliated the strain with Pseudomonas monteilii (AF064458) as the most closely related species. Phenol tolerance of the strain in MSM supplemented with various concentrations of phenol indicates that the strain NCCP-407 can grow best at $750mgL^{-1}$ phenol. The strain showed complete degradation of $750mgL^{-1}$ phenol in 56 hours when supplement as a sole source of carbon and energy with the average degradation rate of $28mgL^{-1}h^{-1}$. The doubling time was recorded approximately as $12.49h^{-1}$. The present study suggests that this strain is efficient in phenol degradation and can be used in treatment of wastewater containing phenol.