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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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Publication details

The article was received on 09 Nov 2014, accepted on 27 Nov 2014 and first published on 28 Nov 2014


Article type: Communication
DOI: 10.1039/C4GC02187H
Citation: Green Chem., 2015,17, 769-775
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    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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