Statistical Approach to Optimize Production of Biosurfactant by Achromobacter Xylos

Statistical approach to optimize production of biosurfactant by Pseudomonas aeruginosa 2297

The main objective of this paper is to optimize biosurfactant production by Pseudomonas aeruginosa 2297 with statistical approaches. Biosurfactant production from P. aeruginosa 2297 was carried out with different carbon sources, and maximum yield was achieved with sawdust followed by groundnut husk and glycerol. The produced biosurfactant has showed active emulsification and surface-active prop...

Factorial Design to Optimize Biosurfactant Production by Yarrowia lipolytica

In order to improve biosurfactant production by Yarrowia lipolytica IMUFRJ 50682, a factorial design was carried out. A 2(4) full factorial design was used to investigate the effects of nitrogen sources (urea, ammonium sulfate, yeast extract, and peptone) on maximum variation of surface tension (Delta ST) and emulsification index (EI). The best results (67.7% of EI and 20.9 mN m(-1) of Delta ST...

Application of the Plackett-Burman Statistical Design to Optimize Poly(β-hydroxybutyrate) Production by Ralstonia eutropha in Batch Culture

Biosurfactant production by Myrciaguianensisendophytic fungi

Surfactants are amphipathic molecules constituted by hydrophobic and hydrophilic regions that usually get distributed on interfaces between fluid phases of different polarities (water/oil and oil/water) [1]. Several compounds with tensoactive properties are synthetized by living organisms (animals, plants and microorganisms), being considered natural surfactants or biosurfactants, which reduce ...

l-Tryptophan Production by Achromobacter liquidum.

Conditions for the production of tryptophanase from Achromobacter liquidum and for the conversion of l-serine and indole to l-tryptophan were studied. The enzyme could be produced in amounts as great as 0.750 U/ml (degradation) and 0.294 U/ml (synthesis) by shaking cultures at 30 degrees C in a medium containing dextrin, yeast extract, l-tryptophan, and l-glutamic acid. l-Tryptophan was produce...