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Depolymerization of Fucoidan by Contact Glow Discharge Electrolysis(CGDE)  

Bae, Jung Shik (Haerim Fucoidan Ltd)
Lee, Jung Shik (Haerim Fucoidan Ltd)
Kim, Young Suk (Haerim Fucoidan Ltd)
Sim, Woo Jong (Department of Chemical Engineering, Sunchon National University)
Lee, Ho (Department of Chemical Engineering, Sunchon National University)
Chun, Ji Yeon (Department of Food Engineering, Sunchon National University)
Park, Kwonpil (Department of Chemical Engineering, Sunchon National University)
Publication Information
Korean Chemical Engineering Research / v.46, no.5, 2008 , pp. 886-891 More about this Journal
Abstract
Contact glow discharge electrolysis(CGDE) is an unconventional electrolysis where plasma is sustained by D.C. glow discharge between an electrode and the surface of electrolyte surrounding it at high voltage. In this study, the behavior of CGDE in NaCl solution and the depolymerization of fucoidan by CGDE were investigated. After onset of CGDE, increase of voltage enhanced Glow discharge which resulted in low current density and low temperature in NaCl electrolyte. From the variation of molecular weight of fucoidan with the reaction time, it was demonstrated that the degradation of fucoidan followed a first-order rate law. Molecular weight of fucoidan treated with CGDE was about 40 times lower compared to initial fucoidan without content decrease of sulfate and fucos.
Keywords
Fucoidan; CGDE; Electrolysis; Depolymerization; Degradation;
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