Mineralization of Phenanthrene by Paenibacillus sp. PRNK-6: Effect of Synthetic Surfactants on its Mineralization

Abstract

Paenibacillus sp. PRNK-6 isolated from a soil contaminated with polycyclic aromatic hydrocarbons (PAHs) was able to utilize 69.48% of phenanthrene (320 mg l-1) in 48 h. The effect of three synthetic surfactants namely, the nonionic surfactant Tween-80, the anionic surfactant sodium dodecyl sulphate (SDS) and the cationic surfactant cetyltrymethyl ammonium bromide (CTAB) on the phenanthrene mineralization by Paenibacillus sp. PRNK-6 was studied. Results showed that the effect of each surfactant on phenanthrene mineralization by PRNK-6 and serve as growth substrate varied considerably. Tween-80, at the concentration of 1.5%, enhanced the growth and mineralization of phenanthrene from 69.48% to 90%; whereas SDS and CTAB, have a negative effect on the growth and mineralization of phenanthrene by Paenibacillus sp. PRNK-6. 

Keywords: Phenanthrene, Mineralization, Paenibacillus sp. PRNK-6, Synthetic surfactants 

Cite this Article Pooja V. Reddy, T.B. Karegoudar, Anand S. Nayak. Mineralization of Phenanthrene by Paenibacillus sp. PRNK-6: Effect of Synthetic Surfactants on its Mineralization. Research & Reviews: A Journal of Microbiology and Virology. 2017; 7(3):   1–7p.