Extracellular lipase from Pseudomonas aeruginosa JCM5962(T): Isolation, identification, and characterization

International Microbiology : the Official Journal of the Spanish Society for Microbiology
Shweta SachanAditi Singh

Abstract

The study was done to isolate, identify, and characterize a good lipolytic strain from soil. Lipolytic strain isolation was done using tributyrin agar medium. The biochemical testing and 16S rRNA gene sequencing analysis was done for identification. The enzyme was purified using ammonium sulfate precipitation and column chromatography. Results have shown a novel high lipolytic strain of P. aeruginosa JCM5962(T), isolated from soil of sugarcane field. The 16S rRNA sequence analysis confirmed the strain as P. aeruginosa JCM5962(T); further, the sequence was submitted to Genbank (KX946966.1). The isolate produced an extracellular lipase which was purified as single band of 31 kDa. Maximum lipase activity was observed at 50 °C and pH 8.0. Activity was enhanced in the presence of cobalt and benzene solvent, whereas mercury, sodium dodecyl sulfate, and chloroform inhibited it. The enzyme's marked stability and activity at high temperature, alkaline pH and organic solvents suggest that this can be effectively used in a variety of applications in industries and as biotechnological tools.

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Datasets Mentioned

BETA
BAMA01000316
KX946966.1

Methods Mentioned

BETA
electrophoresis
enzyme assay
lipase assay
column chromatography

Software Mentioned

Blast
CLUSTAL OMEGA

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