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IJCT Vol.13(1) [January 2006] >


Title: Kinetic studies on mineralization of p-nitrophenol by Pseudomonas putida at low and high concentration
Authors: Kulkarni, Meenal
Chaudhari, Ambalal
Keywords: p-Nitrophenol
Mineralization
Kinetics
Issue Date: Jan-2006
Publisher: CSIR
IPC CodeInt. Cl.7 C12P1/04
Abstract: Pseudomonas putida isolated from ecological habitat, has been evaluated for its potential to mineralize high (2.143 mM) concentration of p-nitrophenol (PNP). The bacterium utilized PNP as the sole source of carbon, nitrogen and energy. Its half saturation constant (Ks values) of PNP degradation was 0.22 mM, as determined by Michaelis- Menten curve. Further, its maximum rate of PNP degradation as per Lineweaver-Burk plot was 4.5 µmol min-1g-1 dry biomass L-1. Its kinetics of growth in minimal medium containing low and high PNP concentrations was Monod type of curve. Various metabolic parameters like specific growth rate (µ), specific PNP uptake rate and specific degradation rate at initial concentrations of 0.143, 0.2143, 0.357, 0.714, 1.43, 2.143 and 3.75 mM PNP were determined.
Page(s): 60-64
ISSN: 0975-0991 (Online); 0971-457X (Print)
Source:IJCT Vol.13(1) [January 2006]

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