Production of bioemulsifiers by Yarrowia lipolytica in sea water using diesel oil as the carbon source

AUTOR(ES)

Souza, F. A. S. D., Salgueiro, A. A., Albuquerque, C. D. C.

FONTE

Brazilian Journal of Chemical Engineering

DATA DE PUBLICAÇÃO

2012-03

RESUMO

The objective of this work was to investigate, on a flask scale, the production of bioemulsifiers by Yarrowia lipolytica in the presence of sea water, supplemented with nitrogen and phosphate sources, using diesel oil as substrate. A full 2(4) factorial design was conducted to investigate the effects and interactions of the nutrient concentrations (diesel oil, urea, ammonium sulfate and monobasic potassium phosphate) on the response variables: emulsification activity and surface tension of the cell-free cultures. High emulsification activities (> 5,4 UEA) were determined after 168 h in all the experiments. The interactions among diesel oil, urea and monobasic potassium phosphate favored the emulsification with statistical significance. A correlation between the increase of emulsification activity and the reduction of surface tension was not identified.

Documentos Relacionados

• Factors influencing crude oil biodegradation by Yarrowia lipolytica
• Renewable resources for biosurfactant production by yarrowia lipolytica
• Role of β-Oxidation Enzymes in γ-Decalactone Production by the Yeast Yarrowia lipolytica
• Use of Plackett-Burman design for rapid screening of nitrogen and carbon sources for the production of lipase in solid state fermentation by Yarrowia lipolytica from mustard oil cake (Brassica napus)
• Enhanced production of erythritol and mannitol by Yarrowia lipolytica in media containing surfactants