Asian Science Citation Index is committed to provide an authoritative, trusted and significant information by the coverage of the most important and influential journals to meet the needs of the global scientific community.  
ASCI Database
308-Lasani Town,
Sargodha Road,
Faisalabad, Pakistan
Fax: +92-41-8815544
Contact Via Web
Suggest a Journal
Journal of Biological Sciences
Year: 2006  |  Volume: 6  |  Issue: 3  |  Page No.: 511 - 515

Lipopolysaccharide Extracellular Emulsifier Produced by Penicillium citrinum

M.M. Camargo de Morais, S.A.F. Ramos, M.C.B. Pimentel, E.H.M. Melo, M.A. Morais Jr, J.F. Kennedy and J.L. Lima Filho    

Abstract: A Brazilian strain of Penicillium citrinum produced a lipopolysaccharide with emulsifier properties during cultivation on mineral medium, containing ammonium sulfate as nitrogen source, with 1% (v/v) olive oil as the carbon source. The maximal emulsifier production (1.6 U mL-1) was obtained after 60 h of cultivation and the biomass reached 7.5 g L-1 at the end of fermentation. The production yield i.e. the amount the carbon source utilized for product synthesis was 54% and the best emulsifying activity was observed for xylene and diesel oil when compared to other carbohydrates tested. The emulsifier was shown to be stable to a wide range of pH and temperature values and was shown to contain D-galactose, D-glucose and D-xylose (8.2:1.0:5.3) with a total carbohydrate content of 43%. The presence of salts stimulated the emulsification activity, suggesting potential for its application in industrial waste or marine remediation.

Cited References   |    Fulltext    |   Related Articles   |   Back
  Related Articles

Copyright   |   Desclaimer   |    Privacy Policy   |   Browsers   |   Accessibility