Paper Title:
Optimization of DPPH Radical Scavenging Activity of Exopolysaccharides from Marine P. chrysogenum HGQ6 in Submerged Fermentation Using Response Surface Methodology
  Abstract

The objectives of this study were to investigate the effect of fermentation medium on the DPPH radical scavenging activity of exopolysaccharides from marine Penicillium chrysogenum HGQ6 by response surface methodology (RSM). A two-level fractional factorial design was used to evaluate the effect of different components of the medium. Maltose, FeSO4, and K2HPO4 were important factors significantly affecting DPPH radical scavenging activity. These selected variables were subsequently optimized using a Box-Behnken design, and response surface analysis. The optimal medium compositions were (% w/v): maltose 2.71, FeSO4 0.0016, K2HPO4 0.1, and KNO3 1.0. Under these optimal conditions, the DPPH radical scavenging rate achieved 34.0%, which agreed with the predicted values.

  Info
Periodical
Edited by
Robert Zhu
Pages
379-384
DOI
10.4028/www.scientific.net/AMM.140.379
Citation
G. L. Guo, L. Guo, "Optimization of DPPH Radical Scavenging Activity of Exopolysaccharides from Marine P. chrysogenum HGQ6 in Submerged Fermentation Using Response Surface Methodology", Applied Mechanics and Materials, Vol. 140, pp. 379-384, 2012
Online since
November 2011
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