Adsorption of Grape Seed Procyanidins on Macroporous Adsorbent Resin: Isotherms and Thermodynamics

Abstract:

The adsorption properties,including the adsorption isotherms,thermodynamics,of grape seed procyanidins onto macroporous resin HZ818 are investigated.Both the Langmuir and Freundlich equations can provide a good fit to the adsorption isotherms, which indicates an endothermic and a favorable process in our study.The capacities of the adsorption increase with temperature. The negative values of ΔG and values of ΔH lower than 40 kJ/mol indicate a spontaneous physical adsorption, and the positive values of ΔS show the increased randomness at the solid/solution interface during the adsorption process.

• Periodical: Advanced Materials Research (Volumes 396-398)
• Pages: 571-574
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.396-398.571
• Online since: November 2011
• Authors: Ying Hua Song, Gui Zhi Zhang
• Keywords: Adsorption, Grape Seed, Macroporous Resin, Procyanidins, Thermodynamic

References

[1] M. Saito, H. Hosoyama, T. Ariga, S. Kataoka and N Yamaji: J. Agric. Food Chem. Vol.46 (1998), p.1460

[2] S.H. Yun H.H. Tae H.H. Won:Biotechnol. Bioprocess Eng.Vol.9(2004),p.471

[3] JA Ross,CM Kasum:Annu. Rev. Nutr.Vol.22(2002),p.19

[4] P.Fan,H.Lou:Mol. Cell Biochem.Vol.267(2004),p.67

[5] X.Ye,RL Krohn,W. Liu,SS Joshi,CA Kuszynski, TR McGinn, M. Bagchi,HG Preuss,SJ Stohs and D. Bagchi: Mol. Cell Biochem.Vol.196(1999),p.99

DOI: 10.1023/a:1006926414683

[6] M.Scordino, A.Di Mauro, A. Passerini and E.Maccarone:J.Agric. Food Chem.Vol.52(2004) ,p. (1965)

[7] Y.H. Song,Y.Tao X.W. Luo:Nat.Prod.Res.Dev.Vol.22(2010)

[8] R.A. Garcia-Delgado L.M. Cotoruelo-Minguez J.J. Rodriguez:Sep.Sci.&Technol.Vol.27(1992),p.975

[9] P.B. John,T.Marios:J.WPCF.Vol.59(1987),p.191