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United States Department of Agriculture

Agricultural Research Service

Research Project: EVOLUTIONARY ENZYMES AND SEPARATION PROCESSES FOR IMPROVED BIOREFINING OF CROPS AND RESIDUES Title: and applications of microbial ß-D-xylosidases featuring the catalytically efficient enzyme from Selenomonas ruminantium

Authors
item Jordan, Douglas
item Wagschal, Kurt

Submitted to: Applied Microbiology and Biotechnology
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: March 3, 2010
Publication Date: March 20, 2010
Citation: Jordan, D.B., Wagschal, K.C. 2010. Properties and applications of microbial beta-D-xylosidases. Applied Microbiology and Biotechnology. 86(6):1647-1658

Interpretive Summary: Xylan 1,4-beta-D xylosidase catalyzes hydrolysis of nonreducing end xylose residues from xylooligosaccharides. The enzyme is currently used in several industrial-scale processes for food and materials, and on a grander scale, the enzyme could find employment along side cellulases and other hemicellulases in hydrolyzing lignocellulosic biomass so the reaction product monosaccharides can be fermented to biofuels, ethanol and butanol. Catalytically efficient enzyme, performing under saccharification reactor conditions, is critical to the feasibility of enzymatic saccharification processes. This is particularly important for beta-xylosidase which would catalyze breakage of more glycosidic bonds of hemicellulose than any other hemicellulase.

Technical Abstract: Xylan 1,4-beta-D xylosidase catalyzes hydrolysis of nonreducing end xylose residues from xylooligosaccharides. The enzyme is currently used in several industrial-scale processes for food and materials, and on a grander scale, the enzyme could find employment along side cellulases and other hemicellulases in hydrolyzing lignocellulosic biomass so the reaction product monosaccharides can be fermented to biofuels, ethanol and butanol. Catalytically efficient enzyme, performing under saccharification reactor conditions, is critical to the feasibility of enzymatic saccharification processes. This is particularly important for beta-xylosidase which would catalyze breakage of more glycosidic bonds of hemicellulose than any other hemicellulase.

Last Modified: 10/24/2014
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