Biodegradation of diesel oil by yeasts isolated from the vicinity of suape port in the state of Pernambuco - Brazil

Brazilian Archives of Biology and Technology

关键词: Biodegradation;    yeasts;    diesel oil;   

DOI  :  10.1590/S1516-89132007000100018

来源: DOAJ

【 摘 要 】

The aim of this work was to investigate the potential of the diesel oil degrading yeasts to use them in bioremediation of areas contaminated by this pollutant. The cultures, identified as Rhodotorula aurantiaca UFPEDA 845 and Candida ernobii UFPEDA 862, were selected at the initial stage. In the course of the biodegradation assays, C. ernobii degraded tetradecane, 5 methyl-octane and octadecane completely and decane (60.8%) and nonane (21.4%) partially whilst R. aurantiaca presented degradation percentages of 93% for decane, 38.4% for nonane and 22.9% for dodecane.
O objetivo deste trabalho foi investigar a potencialidade de leveduras que degradam óleo Diesel, visando aplicação em processo de biorremediação de áreas impactadas pelo referido poluente. As culturas, identificadas como Rhodotorula aurantiaca UFPEDA 845 e Candida ernobii UFPEDA 862, foram as selecionadas na etapa inicial. Quanto aos ensaios de biodegradabilidade, a levedura Candida ernobii UFPEDA 862 degradou totalmente: tetradecano, 5 metil-octano e octadecano, e parcialmente decano (60,8%) e nonano (21,4%), enquanto que a Rhodotorula aurantiaca UFPEDA 845 apresentou percentuais de degradação de 93,0% para decano, 38,4% para nonano e 22,9% para dodecano.

【 授权许可】

Unknown