Isolation and Characterization of Beta-cypermethrin Degrading Strain and its Condition Optimization. [J]. Advanced Engineering Sciences 45(4):176-180(2013)
Isolation and Characterization of Beta-cypermethrin Degrading Strain and its Condition Optimization. [J]. Advanced Engineering Sciences 45(4):176-180(2013) DOI: 10.15961/j.jsuese.2013.04.002.
Isolation and Characterization of Beta-cypermethrin Degrading Strain and its Condition Optimization
Abstract:Strain GCN019 with high ability to degrade beta-cypermethrin was isolated from garden soil which contaminated by beta-cypermethrin for a long term.The strain was identified as Pseudomonas fluorescens based on the results from its physiological-biochemical characteristics and phylogenetic similarity of 16S rDNA gene sequences.Then
the main factors influencing beta-cypermethrin degradation were investigated by using Plackett-Burman design
and the degradation condition was optimized with response surface methodology.It was found that beta-cypermethrin concentration
inoculum volume and initial pH value were the major factors influencing beta-cypermethrin degradation.In addition
the degradation rate of beta-cypermethrin under the optimized condition reached 73.94%
which was similar to the predictive value from response surface model(74.30%).