Affiliation:
1. Biotechnology and Chemistry Groups, Eastern Laboratory, Forintek Canada Corp., Ottawa, Ontario, Canada K1G 3Z5
Abstract
Hemicellulose-derived sugars were obtained from a variety of pretreated wood substrates such as water-soluble fractions from steam-exploded aspen, solvent-extracted aspen, and commercial xylan. These fractions were enzymatically hydrolyzed by commercial enzyme preparations and by the culture filtrates of eight highly cellulolytic fungi. The sugars released were assayed by high-pressure liquid chromatography. Over 30% of the hemicellulose fractions, at a 10% substrate concentration, could be hydrolyzed to monosaccharides. These hemicellulose hydrolysates were used as the substrates for growth of
Clostridium acetobutylicum
and
Klebsiella pneumoniae.
Comparatively low butanol values were obtained with
C. acetobutylicum
, although over 50% of the hemicellulose fraction, at a 1% substrate concentration, could be converted to 2,3-butanediol, ethanol, and acetic acid by
K. pneumoniae.
Publisher
American Society for Microbiology
Subject
Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology
Reference26 articles.
1. Porous polymer bead packings and formic acid vapour in the GLC of volatile free fatty acids;Ackman R. G.;J. Chromatogr. Sci.,1972
2. The hemicelluloses of European larch (Larix decidua). Part 1. The constitution of a xylan;Aspinall G. O.;J. Chem. Soc.,1969
3. The chemical composition of Canadian woods;Clermont L. P.;II. Pulp Pap. Mag. Can.,1952
4. Current biological research in conversion of cellulosic carbohydrates into liquid fuels: how far have we come;Flickinger M. C.;Biotechnol. Bioeng.,1980
5. Production of ethanol from wood hemicellulose hydrolyzates by a xylose fermenting yeast mutant, Candida sp. XF 217;Gong C.;Biotechnol. Lett.,1981
Cited by
63 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献