Data/hora: 10/06/2024 19:06:37

Provedor de dados: | 69
País: | Chile
Título: | Production and stability studies of the bioemulsifier obtained from a new strain of Candida glabrata UCP 1002
Autores: | Asfora Sarubbo,Leonie; Moura de Luna,Juliana; de Campos-Takaki,Galba Maria.
Data: | 2006-07-01
Ano: | 2006
Palavras-chave: | Biosurfactant; Candida; Emulsifier; Fermentation; Glucose; Vegetal oil.
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%.
Tipo: | Journal article
Idioma: | Inglês
Identificador: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582006000400008
Editor: | Pontificia Universidad Católica de Valparaíso
Formato: | text/html
Fonte: | Electronic Journal of Biotechnology  v.9 n.4 2006