| Registro completo |
| Provedor de dados: |
Electron. J. Biotechnol.
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| País: |
Chile
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| Título: |
Production and stability studies of the bioemulsifier obtained from a new strain of Candida glabrata UCP 1002
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| Autores: |
Asfora Sarubbo,Leonie
Moura de Luna,Juliana
de Campos-Takaki,Galba Maria
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| Data: |
2006-07-01
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| Ano: |
2006
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| Palavras-chave: |
Biosurfactant
Candida
Emulsifier
Fermentation
Glucose
Vegetal oil
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| Resumo: |
Evaluation of both tenso-active and emulsifying activities indicated that a biosurfactant was produced by the newly isolated and promising strain Candida glabrata isolated from mangrove sediments. The extracellular water-soluble emulsifying agent was isolated and identified as a heteropolymer. The maximum of bioemulsifier production was observed when the strain was grown on soluble and insoluble substrates cotton seed oil plus glucose, reaching values of 10.0 g/l after 144 hrs at 200 rpm. The cell-free culture broth containing the examined agent lowered the surface tension of the medium to 31 mN/m. Stable and compact emulsions with emulsifying activity of 75% of cotton seed oil were detected. The emulsification capacity remained practically unaltered within a wide pH (2-12), temperature (4-80ºC) ranges and under NaCl concentrations up to 10%.
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| Tipo: |
Journal article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582006000400008
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| Editor: |
Pontificia Universidad Católica de Valparaíso
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| Formato: |
text/html
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| Fonte: |
Electronic Journal of Biotechnology v.9 n.4 2006
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