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	Provedor de dados BABT (2) BJM (1) Autor Gomes,Edelvio de Barros (3) Sousa,Maria de Fátima Vieira de Queiroz (2) Ciapina,Elisa Mara Prioli (1) Lopes,Carlos Edison (1) Lovaglio,Roberta Barros (1) Miranda,Rita de Cássia (1) Miranda,Rita de Cássia Mendonça de (1) Pacheco,Graziela Jardim (1) Pereira Jr.,Nei (1) Pereira Junior,Nei (1) Soriano,Adriana Ururahy (1) Souza,Cynthia Silva de (1) Mais... Palavra-chave Biodegradation (2) Biosurfactant production (1) Diesel oil (1) Jet fuel (1) Nocardia (1) Oil removal (1) Rhodococcus erythropolis (1) Yeasts (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2010 (1) 2009 (1) 2007 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Biodegradation of stored jet fuel by a Nocardia sp. isolated from contaminated soil BABT Gomes,Edelvio de Barros; Soriano,Adriana Ururahy; Miranda,Rita de Cássia Mendonça de; Sousa,Maria de Fátima Vieira de Queiroz; Pereira Jr.,Nei. The aim of this study was to investigate the potential of degradation of an autochthonous bacterial strain, isolated from petroleum derivatives contaminated soil samples against jet fuel hydrocarbons. The autochthonous bacterial strain was characterized as Nocardia sp. Evaluation of their degrading abilities was carried out by presumptive assays as redox indicator test and by observations of surface tension decreases in aqueous medium. Degradation of jet fuel hydrocarbons was evaluated by chromatographic methods. Experiments were performed in flasks at two biostimulation rates. A bacterial strain of Pseudomonas aeruginosa UFPEDA 39 was utilized as a reference microorganism. The bacterial strain, identified as Nocardia sp, demonstrate high ability to... Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodegradation; Nocardia; Jet fuel. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000500027 Biodegradation of diesel oil by yeasts isolated from the vicinity of suape port in the state of Pernambuco - Brazil BABT Miranda,Rita de Cássia; Souza,Cynthia Silva de; Gomes,Edelvio de Barros; Lovaglio,Roberta Barros; Lopes,Carlos Edison; Sousa,Maria de Fátima Vieira de Queiroz. 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. Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodegradation; Yeasts; Diesel oil. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000100018 Biosurfactant production by Rhodococcus erythropolis and its application to oil removal BJM Pacheco,Graziela Jardim; Ciapina,Elisa Mara Prioli; Gomes,Edelvio de Barros; Pereira Junior,Nei. The influence of different nutrients on biosurfactant production by Rhodococcus erythropolis was investigated. Increasing the concentration of phosphate buffer from 30 up through 150 mmol/L stimulated an increase in biosurfactant production, which reached a maximum concentration of 285 mg/L in shaken flasks. Statistical analysis showed that glycerol, NaNO3,MgSO4 and yeast extract had significant effects on production. The results were confirmed in a batchwise bioreactor, and semi-growth-associated production was detected. Reduction in the surface tension, which indicates the presence of biosurfactant, reached a value of 38 mN/m at the end of 35 hours. Use of the produced biosurfactant for washing crude oil-contaminated soil showed that 2 and 4 times the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Biosurfactant production; Oil removal; Rhodococcus erythropolis. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000300019 Registros recuperados: 3 Primeira ... 1 ... Última

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