Pre-treatment of lignocellulosic biomass using ionic liquids: Wheat straw fractionation

DQ Group Author, Ewa Bogel-Lukasik

Research output: Contribution to journalArticlepeer-review

230 Citations (Scopus)

Abstract

This work is devoted to study pre-treatment methodologies of wheat straw with 1-ethyl-3-methylimidazolium acetate ({[}emim]{[}CH3COO]) and subsequent fractionation to cellulose, hemicellulose and lignin. The method developed and described here allows the separatiou into high purity carbohydrate and lignin fractions and permits an efficient IL recovery. A versatility of the established method was confirmed by the IL reuse. The fractionation of completely dissolved biomass led to cellulose-rich and hemicellulose-rich fractions. A high purity lignin was also achieved. To verify the potential further applicability of the obtained carbohydrate-rich fractions, and to evaluate the pre-treatment efficiency, the cellulose fraction resulting from the treatment with {[}emim]{[}CH3COO] was subjected to enzymatic hydrolysis. Results showed a very high digestibility of the cellulose samples and confirmed a high glucose yield for the optimized pre-treatment methodology.
Original languageEnglish
Pages (from-to)198-208
JournalBioresource Technology
Volume142
Issue numberNA
DOIs
Publication statusPublished - 1 Aug 2013

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