Browse > Article

Effects of Aqueous Ammonia Soaking to Chemical Compositional Changes and Enzymatic Saccharification of Yellow Poplar (Liriodendron tulipifera L.)  

Shin, Soo-Jeong (Chungbuk National University, Agricultural Science & Technology Institute)
Yu, Ju-Hyun (Korea Research Institute of Chemical Technology, Chemical Biotechnology Research Center)
Cho, Nam-Seok (Chungbuk National University, College of Agriculture, Life & Environment Sciences, Wood and Paper Science)
Choi, In-Gyu (Dept. of Forest Sciences, College of Agriculture and Life Science, Seoul National University)
Kim, Mun-Sung (Chungbuk National University, College of Agriculture, Life & Environment Sciences, Wood and Paper Science)
Park, Jong-Moon (Chungbuk National University, College of Agriculture, Life & Environment Sciences, Wood and Paper Science)
Publication Information
Journal of Korea Technical Association of The Pulp and Paper Industry / v.41, no.1, 2009 , pp. 61-66 More about this Journal
Abstract
Effects of aqueous ammonia soaking treatments to yellow poplar (Liriodendron tulipifera L.) were investigated to focus on chemical compositional changes and enzymatic hydrolysis characteristics changes by this treatment. Treatment temperature and time were main variables. At 3 different levels of aqueous ammonia soaking temperature and time ($145^{\circ}C$ -1 h, $90^{\circ}C$ -16 h and $45^{\circ}C$ - 6 days), lower temperature and longer soaking time led to more xylan removal based on carbohydrate compositional analysis. However, at higher temperature treatment led to more enzymatic saccharification of cellulose to glucose by commercial cellulose mixtures (Celluclast 1.5L and Novozym 342 from Novozyme, Denmark). Cellulose hydrolysis was gradually increased with increasing enzymatic hydrolysis time but xylan hydrolysis was leveled out at early stage (less than 10 h) of enzymatic hydrolysis.
Keywords
aqueous ammonia soaking; xylan; lignin; NMR; glucose; xylose; yellow poplar(Liriodendron tulipifera L.); enzymatic saccharification;
Citations & Related Records

Times Cited By SCOPUS : 2
연도 인용수 순위
1 Sun, Y. and Cheng, J., Hydrolysis of lignocellulosic materials for ethanol production: a review, Bioresour. Technol. 83:1-11(2002)   DOI   ScienceOn
2 Hemdriks, A.T.W.M and Zeeman, G., Pretreatments to enhance the digestibility of lignocellulosic biomass, Bioresour. Technol. 100:10-18 (2008)   DOI   ScienceOn
3 Teymouri, F., Laureano Perez, L., Alizadeh, H. and Dale, B.E, Optimization of the ammonia fiber explosion (AFEX) treatment parameters for enzymatic hydrolysis of corn stover, Bioresour. Technol. 96:2014-2018 (2005)   DOI   ScienceOn
4 이종윤, 장준복, 폭쇄처리에 의한 biomass 자원의 전처리 당화 신공정 개발 (2) 산 및 알칼리에 의한 신갈나무와 이태리포플러 폭쇄재의 탈리그닌, 펄프,종이기술 22(4): 26-34 (1990)
5 Shin, S. J. and Cho, N. S., Conversion factors for carbohydrate analysis by hydrolysis and $^1H$ NMR spectroscopy, Cellulose 15:255-260 (2008)   DOI   ScienceOn
6 Kim, T. H. and Lee, Y.Y., Pretreatment of corn stover by soaking in aqueous ammonia at moderate temperatures, Appl. Biochem. Biotechnol. 137-140: 81-92 (2007)   DOI   PUBMED   ScienceOn
7 조남석, 민두식, 대체연료 생산을 위한 목질재료의 가수분해 연구 제5보. 묽은황산 폭쇄처리재의 가수 분해에 관하여, 펄프,종이기술 22(4): 35-60 (1990)