Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Conversion of Red-macroalgae Eucheuma spinosum to Platform Chemicals Under Ferric Chloride-catalyzed Hydrothermal Reaction

Ferric chloride를 이용한 Eucheuma spinosum으로부터 플렛폼 케미컬의 생산

  • Jeong, Gwi-Taek (Department of Biotechnology, Pukyong National University) ;
  • Kim, Sung-Koo (Department of Biotechnology, Pukyong National University)
  • Received : 2020.02.13
  • Accepted : 2020.03.16
  • Published : 2020.05.01
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Abstract

Eucheuma spinosum, red macro-algae, contains carrageenan as the major polysaccharide and is commercially produced in Indonesia, Malaysia, Philippines, China and Tanzania. In this study, E. spinosum was converted to sugar and platform chemicals (5-HMF, levulinic acid, formic acid) via FeCl3-catalytic hydrothermal reaction. In addition, statistical methodology (3-level 3-factor Box-Behnken design) was applied to optimize and evaluate the effects of reaction factors (reaction temperature, catalyst concentration and reaction time). As a result of optimization, the concentration of 5-HMF was obtained to be 2.96 g/L at 160 ℃, 0.4 M FeCl3 and 10 min. Optimal conditions of levulinic and formic acids were determined at 200 ℃, 0.6 M FeCl3 and 30 min, and the concentrations were obtained to be 4.26 g/L and 3.77 g/L, respectively.

홍조류인 Eucheuma spinosum은 카라기난을 주된 다당으로 함유하고 있으며 Indonesia, Malaysia, Philippines, China, Tanzania 등지에서 상업적으로 생산되고 있다. 본 연구에서는 E. spinosum을 대상으로 FeCl3-촉매 수열반응을 통하여 당과화학중간체(5-HMF, levulinic acid, formic acid)로전환하고자하였다. 통계적실험법(3-수준-3-인자의 Box-Behnken design)을 적용하여 반응인자(반응온도, 촉매농도, 반응시간)의 최적화와 영향을 평가하였다. 최적화 결과, 5-HMF의 농도는 160 ℃, 0.4 M FeCl3, 10 min에서 2.96 g/L가 생성되었다. Levulinic acid와 formic acid의 최적 조건은 200 ℃, 0.6 M FeCl3, 30 min으로 결정되었고, 농도는 각각 4.26 g/L와 3.77 g/L이었다.

Keywords

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