Hemicellulose bioconversion |
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Authors: | Email author" target="_blank">Badal?C?SahaEmail author |
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Institution: | (1) Fermentation Biotechnology Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, U. S. Department of Agriculture, 1815 North University Street, Peoria, IL 61604, USA |
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Abstract: | Various agricultural residues, such as corn fiber, corn stover, wheat straw, rice straw, and sugarcane bagasse, contain about
20–40% hemicellulose, the second most abundant polysaccharide in nature. The conversion of hemicellulose to fuels and chemicals
is problematic. In this paper, various pretreatment options as well as enzymatic saccharification of lignocellulosic biomass
to fermentable sugars is reviewed. Our research dealing with the pretreatment and enzymatic saccharification of corn fiber
and development of novel and improved enzymes such as endo-xylanase, β-xylosidase, and α-l-arabinofuranosidase for hemicellulose bioconversion is described. The barriers, progress, and prospects of developing an
environmentally benign bioprocess for large-scale conversion of hemicellulose to fuel ethanol, xylitol, 2,3-butanediol, and
other value-added fermentation products are highlighted. |
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Keywords: | Hemicellulose Arabinoxylan Bioconversion Hemicellulase Xylanolytic enzymes |
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