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Issue 2, 2015
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Efficient mechano-catalytic depolymerization of crystalline cellulose by formation of branched glucan chains

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Abstract

Selective hydrolysis of cellulose into glucose is a critical step for producing value-added chemicals and materials from lignocellulosic biomass. In this study, we found that co-impregnation of crystalline cellulose with sulfuric acid and glucose can greatly reduce the time needed for ball milling compared with adding acid alone. The enhanced reaction time coincides with the rapid formation of branched α(1→6) glycosidic bonds, which have been shown to increase water solubility of β(1→4) glucan oligomers. Co-impregnation of glucose was crucial for the rapid formation of the α(1→6) branches, after which a carbon-based catalyst can rapidly hydrolyze the water-soluble glucan oligomers to 91.2% glucose yield faster than conventional approaches.

Graphical abstract: Efficient mechano-catalytic depolymerization of crystalline cellulose by formation of branched glucan chains

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Supplementary files

Article information


Submitted
09 Nov 2014
Accepted
27 Nov 2014
First published
28 Nov 2014

Green Chem., 2015,17, 769-775
Article type
Communication
Author version available

Efficient mechano-catalytic depolymerization of crystalline cellulose by formation of branched glucan chains

P. Dornath, H. J. Cho, A. Paulsen, P. Dauenhauer and W. Fan, Green Chem., 2015, 17, 769
DOI: 10.1039/C4GC02187H

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