| 학회 |
한국화학공학회 |
| 학술대회 |
2012년 가을 (10/24 ~ 10/26, 부산 BEXCO) |
| 권호 |
18권 2호, p.1735 |
| 발표분야 |
분리기술 |
| 제목 |
Clean Fractionation Techniques for a Forest Residue: Hemicellulose and Lignin as Liquor Phase and Cellulase Digestible Microfibrils at Low Enzyme Loading |
| 초록 |
The main objective of this study was to fractionate a forest residue (tulip sawdust) obtaining the highest cellulose digestibility. Following the clean fractionation (CF) techniques, the forest residue was fractionated into three main building blocks: cellulose, hemicellulose and lignin. The CF techniques involved three main steps: selectively hemicellulose solubilization by autohydrolysis, lignin removal from the resulted solids by formosolv process and bleached the cellulose pulp with alkaline H2O2 solution. The chemical composition and structural features of the raw and fractionated solids were characterized using HPLC, XRD, DSC, TGA, FTIR-ATR and FESEM. In order to evaluate the degree of CF techniques, enzymatic saccharification was subjected to the cellulose fraction obtained from the CF techniques and raw forest residue as a control at minimum cellulase loading (5 FPU/g of dry substrate). The CF techniques rendered nearly 98% of white cellulose microfibrils with 52 times higher conversion to glucose as compared to the raw substrate. |
| 저자 |
Aye Aye Myint, 김대성, 이헌욱, 윤준호, 이윤우
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| 소속 |
서울대 |
| 키워드 |
autohydrolysis;; formic acid;; hemicellulose solubilization;; delignification;; cellulose microfibrils
|
| E-Mail |
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| VOD |
VOD 보기 |
| 원문파일 |
초록 보기 |
