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	Provedor de dados BABT (1) BJM (1) Autor Campos-Takaki,Galba Maria de (1) Ciapina,Elisa Mara Prioli (1) Gomes,Edelvio de Barros (1) Luna,Juliana Moura de (1) Pacheco,Graziela Jardim (1) Pereira Junior,Nei (1) Sarubbo,Leonie (1) Mais... Palavra-chave Oil removal (2) Biosurfactant (1) Biosurfactant production (1) Candida glabrata (1) Cotton seed oil (1) Rhodococcus erythropolis (1) Stability (1) Surface tension (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2010 (1) 2009 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última A new biosurfactant produced by Candida glabrata UCP 1002: characteristics of stability and application in oil recovery BABT Luna,Juliana Moura de; Sarubbo,Leonie; Campos-Takaki,Galba Maria de. The production of a new biosurfactant by Candida glabrata UCP1002 was studied to evaluate the influence of the concentration of the cotton seed oil, glucose and yeast extract. The dynamics of the growth and surfactant production were showed for all the cultivation conditions studied. The best emulsification of the n-hexadecane, quantified by the emulsifying index was observed in the medium containing 7.5% cotton seed oil, 5% glucose and 0.3% yeast extract. The isolated biosurfactant showed a CMC of 2.5% and the surface tension at that point showed to be 31mN/m. The potential application of the biosurfactant in oil recovery from the sand, in acid and alkaline environments and over exposure to high salinity and different temperatures was demonstrated by the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Biosurfactant; Candida glabrata; Surface tension; Stability; Cotton seed oil; Oil removal. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000400001 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: 2 Primeira ... 1 ... Última

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