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Language: korean

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received January 22, 2011
Accepted February 19, 2011

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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유기산전해질을 이용한 접촉 글로우 방전 전기분해공정에서 후코이단의 저분자화

Degradation of Fucoidan by Contact Glow Discharge Electrolysis Using Organic Electrolyte

차성한 이정식¹ 김영숙¹ 박권필^†

Seong Han Cha Jung Shik Lee¹ Young Suk Kim¹ Kwonpil Park^†

순천대학교 화학공학과, 540-742 전남 순천시 매곡동 315 ¹(주)해림후코이단, 537-801 전남 완도군 완도읍 가용리 1088-8

Department of Chemical Engineering, Sunchon National University, 315 Maegok-dong, Suncheon-si, Jeonnam 540-742, Korea ¹Haerim Fucoidan Ltd, 1088-8 Gayong-ri, Wando-eup, Wando-gun, Jeonnam 537-801, Korea

parkkp@sunchon.ac.kr

Korean Chemical Engineering Research, December 2011, 49(6), 704-709(6), NONE Epub 25 November 2011

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Abstract

접촉글로우방전 전기분해(CGDE)에 의한 후코이단의 저분자화에 대해 연구하였다. CGDE 공정 후에 후코이단을 기능성 식품재료로 사용하기 위해 유기산을 전해질로 사용하였다. 실험결과 유기산을 이용한 전기분해에 의해 후코이단의 분자량을 효과적으로 감소시킴을 보였다. 전해질의 농도가 증가하면 글로우방전 시작 전압이 감소하고 글로우방전 시작 전류는 증가하였다. 반응시간에 따른 후코이단의 분자량 변화로부터 저분자화반응은 1차 반응속도 식을 따름을 보였다. 유기산을 이용한 CGDE에 의해 후코이단의 분자량이 처음의 약 1/77로 감소하였으며, CGDE 저분자화 과정에서 유리된 황산기 함량이 작았다.

Depolymerization of fucoidan induced by contact glow discharge electrolysis(CGDE) was investigated. To utilize fucoidan as a functional food material after CGDE, organic acids were used as a electrolyte in CGDE process. Experimental results showed that CGDE using organic acid reduced the molecular weight of fucoidan effectively. As electrolyte concentration increased, onset voltage of glow discharge decreased and onset current of glow discharge increased. 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 using organic acid was about 77 times lower compared to initial fucoidan with little free sulfate.

Keywords

Fucoidan Organic Acid CGDE Electrolysis Degradation

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