Optimization of napthalene biodegradation by a genetic algorithm based response surface methodology

Brazilian Journal of Chemical Engineering

M. Zafar¹  Shashi Kumar¹  Surendra Kumar¹ 

[1] ,Indian Institute of Technology Roorkee Chemical Engineering Department Roorkee UA ,India

关键词: Biodegradation;    Naphthalene;    Plakett-Burman design;    Genetic Algorithm;    Response Surface Methodology;   

DOI  :  10.1590/S0104-66322010000100008

来源: SciELO

【 摘 要 】

Naphthalene biodegradation was studied using the bacterial strain Pseudomonas putida S2. Three medium variables out of seven medium components were selected under Plakett-Burman (PB) design as having significant response on naphthalene biodegradation. These variables were citric acid (additional carbon sources), ammonium sulfate and sodium chloride. The levels of these three variables were optimized by the application of genetic algorithm (GA) based response surface methodology (RSM) in terms of maximum biodegradation efficiency. The maximum biodegradation efficiency of 55.51% was observed at concentrations of 1.0 g L-1, 1.0 g L-1, and 0.7g L-1 for citric acid, ammonium sulfate and sodium chloride, respectively. In addition, the interactive effects of significant medium variables were analyzed using three dimensional surface plots simulated by network output in terms of maximum fitness function.

【 授权许可】

CC BY   
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