펄프종이기술 (Journal of Korea Technical Association of The Pulp and Paper Industry)

한국펄프종이공학회 (Korea Technical Association of the Pulp and Paper Industry)
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활엽수 알칼리 선추출물 내 헤미셀룰로오스의 분리 및 정제

Isolation and Purification of Hemicelluloses in Alkali Pre-extractives from Mixed Hardwood

  • 심규정 (서울대학교 농업생명과학대학 산림과학부) ;
  • 신희내 (서울대학교 농업생명과학대학 산림과학부) ;
  • 윤혜정 (서울대학교 농업생명과학대학 산림과학부) ;
  • 이학래 (서울대학교 농업생명과학대학 산림과학부)
  • Sim, Kyu-Jeong (Dept. of Forest Sciences, Seoul National University) ;
  • Shin, Hee-Nae (Dept. of Forest Sciences, Seoul National University) ;
  • Youn, Hye-Jung (Dept. of Forest Sciences, Seoul National University) ;
  • Lee, Hak-Lae (Dept. of Forest Sciences, Seoul National University)
  • 투고 : 2010.12.04
  • 심사 : 2010.12.20
  • 발행 : 2010.12.30
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초록

In this study, hemicelluloses were pre-extracted from mixed hardwood chips using sodium hydroxide solution and then they were isolated from pre-extractives by using various solvents. Isolation was conducted by precipitating hemicelluloses with isopropanol, ethanol, 1,4-dioxane, dimethylsulfoxide (DMSO) and potassium hydroxide (KOH), respectively. The precipitate yield on alkali pre-extractives was the highest when hemicelluloses were isolated by DMSO and then precipitated with ethanol. Most precipitates were yellow colored. The efficiency of isolation was evaluated by analysing the characteristics of isolated hemicelluloses. Isolation using DMSO, KOH and 1,4-dioxane ($80^{\circ}C$) showed rather high efficiency. The highest total separation efficiency was about 77% when alkali pre-extractives were reacted with KOH and precipitated with ethanol. The quantity and purity of isolated hemicelluloses were affected by the solvent type.

키워드

참고문헌

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