Characterization of Organic Solvent Stable Lipase from Pseudomonas sp. BCNU 106

Pseudomonas sp. BCNU 106이 생산하는 유기용매 내성 리파아제의 특성

Choi, Hye Jung;Hwang, Min Jung;Kim, Dong Wan;Joo, Woo Hong

  • Received : 2016.01.12
  • Accepted : 2016.02.11
  • Published : 2016.05.30


A crude extracellular lipase from solvent-tolerant bacterium Pseudomonas sp. BCNU 106 was highly stable in the broad pH range of 4-10 and at temperature of 37℃. Crude lipase of BCNU 106 exhibited enhanced stability in 25% organic solvents such as xylene (121.85%), hexane (120.35%), octane (120.41 %), toluene (118.14%), chloroform (103.66%) and dodecane (102.94%) and showed excellent stability comparable with the commercial immobilized enzyme. In addition, the stability of BCNU 106 lipase retained above 110% of its enzyme activity in the presence of Cu2+, Hg2+, Zn2+ and Mn2+, whereas Fe2+ strongly inhibited its stability. The detergents including tween 80, triton X-100 and SDS were positive signals for lipase stability. Because of its stability in multiple organic solvents, cations and surfactants, the Pseudomonas sp. BCNU 106 lipase could be considered as a potential biocatalyst in the industrial chemical processes without using immobilization.


Lipolytic stability;organic solvent stable lipase;organic solvent-tolerant;Pseudomonas sp.


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