Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.9/2324
Título: Pre-treatment of lignocellulosic biomass using ionic liquids: wheat straw fractionation
Autor: Lopes, André
João, Karen
Rubik, Djonatam
Bogel-Lukasik, Ewa
Duarte, Luís C.
Andreaus, Jurgen
Bogel-Lukasik, R.
Palavras-chave: Ionic Liquids
Lignocellulose
Pre-treatment
Fractionation
Cellulose
Hemicellulose
Lignin
Data: 2013
Editora: Elsevier
Citação: Lopes, André M. da Costa; João, Karen G.; Rubik, Djonatam F.; Bogel-Lukasik, E.; Duarte, Luís C.; Andreaus, J.; Bogel-Lukasik, R. Pre-treatment of lignocellulosic biomass using ionic liquids: wheat straw fractionation. In: Bioresource Technology, 2013, Vol. 142, p. 198-208
Resumo: 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 separation 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.
URI: http://hdl.handle.net/10400.9/2324
ISSN: 0960-8524
Versão do Editor: http://dx.doi.org/10.1016/j.biortech.2013.05.032
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