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Evaluation of the API ZYM system and RPMI agar plates supplemented with Tween 40 for detection of lipolytic enzymes of Candida spp
Authors:Ciok-Pater Emilia  Wróblewska Joanna  Bia?ucha Agata  Gospodarek Eugenia
Institution:Katedra i Zak?ad Mikrobiologii Collegium Medicum im. L. Rydygiera w Bydgoszczy Uniwersytet Miko?aja Kopernika w Toruniu.
Abstract:Lipolytic activity of 40 strains of Candida spp. was tested on API ZYM system and on RPMI agar plates supplemented with 1% Tween 40. Lipolytic activity was indicated by opaque zones around the inoculum cylindrical holes were punched in the medium. Clearing of the medium around the bacterial colonies indicated that an isolate produce lipase. Only 4 (21.1%) strains of C. albicans, and 3 (14.1%) strains of non-C. albicans which hydrolyzed 2-naftylomirystylan by use of the API ZYM system was observed. In contrast, 16 (78.9%) strains of C. albicans and 17 (80.7%) strains of non-C. albicans produced lipases on the agar plate using RPMI agar plates supplemented with 1.0% Tween 40. Determination oflipase activities with the API ZYM system were in no agreement with lipase tests in RPMI supplemented with Tween 40. Our study verify greater usefulness of RPMI supplemented with Tween 40 for detection of lipolytic enzymes of Candida species in comparison to the API ZYM.
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