Summary
Three strains of Geotrichum candidum (ATCC 34614, NRRL Y-552 and NRRL Y-553) were examined for lipase production and activity. Variables including medium, pH, temperature, agitation rate and incubation time were examined to define the optimal culture conditions. Growth on oil in complex medium at 30°C, 300 rpm, and pH 7 produced maximal lipase activity. Fatty acid specificity of these strains and of two crude G. candidum enzyme preparations (lipase 26557 RP, Rhône Poulenc and lipase GC-4, Amano) was measured using equimolar mixtures of methyl or butyl esters of palmitic and oleic acids. The lipase from NRRL Y-553 and lipase 26557 RP displayed preferential specificity for hydrolyzing oleic acid esters, while the lipases from ATCC 34614, NRRL Y-552 and lipase GC-4 failed to discriminate between plamitic and oleic acids.
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Baillargeon, M.W., Bistline, R.G. & Sonnet, P.E. Evaluation of strains of Geotrichum candidum for lipase production and fatty acid specificity. Appl Microbiol Biotechnol 30, 92–96 (1989). https://doi.org/10.1007/BF00256003
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DOI: https://doi.org/10.1007/BF00256003