Issue 1, 2015

Brönsted acidic ionic liquid-catalyzed conversion of hemicellulose into sugars

Abstract

Development of a competent method for the conversion of hemicellulose, a lignocellulosic component, into sugars is essential. In a one-pot method, Brönsted acidic ionic liquid (BAIL)-catalyzed hydrolysis of hardwood hemicellulose at 160 °C in water media gave C5 sugars (xylose + arabinose) in 87% yield. The efficiency of the ILs and their acid strength both followed the similar trend, [C3SO3HMIM][HSO4] > [C3SO3HMIM][PTS] > [C3SO3HMIM][Cl] > [BMIM][Cl]. The ion–dipole-type interaction present between the BAIL and the substrate, which is proposed by the 1H NMR study, is suggested to help in achieving better activity with BAIL than with mineral acid, H2SO4.

Graphical abstract: Brönsted acidic ionic liquid-catalyzed conversion of hemicellulose into sugars

Supplementary files

Article information

Article type
Paper
Submitted
12 Aug 2014
Accepted
16 Sep 2014
First published
16 Sep 2014

Catal. Sci. Technol., 2015,5, 531-539

Brönsted acidic ionic liquid-catalyzed conversion of hemicellulose into sugars

B. M. Matsagar and P. L. Dhepe, Catal. Sci. Technol., 2015, 5, 531 DOI: 10.1039/C4CY01047G

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