Food and Fermentation Industries

Adsorption Behavior of Macroporous Adsorption Resin for Gynostemma Polysaccharide

  • Tang Xiao-dan ,
  • Zhao Jin-liang ,
  • Yun Da ,
  • Hang Hai-yang
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Online published: 2012-01-25

Abstract

The adsorptive thermodynamics and dynamics characteristics of Gynostemma polysaccharide on macroporous resin was studied.UV-visible spectrophotometry was used to detect the adsorptive equilibrium curve and adsorptive dynamic curve at different temperatures.The results showed that the adsorptive balance data were correlated well to Langmuir equation,second-order kinetic equation,Boyd film diffusion equation and kannan-sundaram equation.The relativities among them were all good.This adsorptive procedure was a non-spontaneous endothermic process of increased entropy.The rate of adsorption was mainly controlled by the intra-particle diffusion.

Cite this article

Tang Xiao-dan , Zhao Jin-liang , Yun Da , Hang Hai-yang . Adsorption Behavior of Macroporous Adsorption Resin for Gynostemma Polysaccharide[J]. Food and Fermentation Industries, 2012 , 38(01) : 72 -76 . DOI: 10.13995/j.cnki.11-1802/ts.2012.01.013

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