期刊
INTERNATIONAL MICROBIOLOGY
卷 21, 期 4, 页码 197-205出版社
SPRINGER
DOI: 10.1007/s10123-018-0016-z
关键词
Extracellular lipase; Pseudomonas aeruginosa; Metal ions; Cobalt; Benzene
资金
- Amity University Lucknow campus and Head, Amity Institute of Biotechnology
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 JCM59629T), isolated from soil of sugarcane field. The 16S rRNA sequence analysis confirmed the strain as P. aeruginosa JCM59629T); further, the sequence was submitted to Genbank 9KX946966.1). The isolate produced an extracellular lipase which was purified as single band of 31 kDa. Maximum lipase activity was observed at 50 degrees 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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