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  • Title: New finding and optimal production of a novel extracellular alkaline lipase from Yarrowia lipolytica NRRL Y-2178.
    Author: Lee GH, Bae JH, Suh MJ, Kim IH, Hou CT, Kim HR.
    Journal: J Microbiol Biotechnol; 2007 Jun; 17(6):1054-7. PubMed ID: 18050928.
    Abstract:
    Lipases are industrially useful versatile enzymes that catalyze numerous different reactions including hydrolysis of triglycerides, transesterification, and chiral synthesis of esters under natural conditions. Although lipases from various sources have been widely used in industrial applications, such as in food, chemical, pharmaceutical, and detergent industries, there are still substantial current interests in developing new microbial lipases, specifically those functioning in abnormal conditions. We screened 17 lipase-producing yeast strains, which were prescreened for substrate specificity of lipase from more than 500 yeast strains from the Agricultural Research Service Culture Collection (Peoria, IL, U.S.A.), and selected Yarrowia lipolytica NRRL Y-2178 as a best lipase producer. This report presents new finding and optimal production of a novel extracellular alkaline lipase from Y. lipolytica NRRL Y-2178. Optimal c ulture conditions f orlipase production by Y. lipolytica NRRL Y-2178 were 72 h incubation time, 27.5 degrees C, pH 9.0. Glycerol and glucose were efficiently used as the most efficient carbon sources, and a combination of yeast extract and peptone was a good nitrogen source for lipase production by Y. lipolytica NRRL Y-2178. These results suggested that Y. lipolytica NRRL Y-2178 showsgood industrial potential as a new alkaline lipase producer.
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