Article ID Journal Published Year Pages File Type
71073 Journal of Molecular Catalysis B: Enzymatic 2006 5 Pages PDF
Abstract

Lipase producing ability of 120 bacterial isolates was examined qualitatively, resulting in 32 lipase producers, which were further screened for 1,3-regiospecificity. Three Bacillus (GK-8, GK-31 and GK-42) and one Pseudomonas (GK-80) were found to produce 1,3-regiospecific lipases. These lipases were alkaline in nature as they showed pH optima of 9.0 and high stability in the alkaline pH range of 8.0–11.0. The lipases from three Bacillus isolates, viz. GK-8, GK-31 and GK-42 showed temperature optima of 37 °C, whereas the Pseudomonas (GK-80) lipase showed optimum activity at 50 °C. The lipase of GK-8 was highly stable and showed enhanced activity in different organic solvents like petroleum ether (172%), diethyl ether (143%) and acetone (135%).

Related Topics
Physical Sciences and Engineering Chemical Engineering Catalysis
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