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Valorization of an invasive woody species, Acacia dealbata , by means of Ionic liquid pretreatment and enzymatic hydrolysis
Author(s) -
Yáñez Remedios,
Gómez Belén,
Martínez Martina,
Gullón Beatriz,
Alonso José Luis
Publication year - 2014
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.4207
Subject(s) - ionic liquid , chemistry , enzymatic hydrolysis , xylan , cellulose , hydrolysis , raw material , biofuel , context (archaeology) , pulp and paper industry , acacia , chromatography , organic chemistry , botany , microbiology and biotechnology , catalysis , biology , paleontology , engineering
Abstract BACKGROUND The availability of efficient pretreatments is a priority for the development of lignocellulose biorefineries. In this context, the utilization of widespread invasive raw materials and green solvents shows potential advantages. This study provides an experimental assessment on the pretreatment of Acacia dealbata with the ionic liquid 1‐ethyl‐3‐methylimidazolium acetate ( EMIMAc ).RESULTS Under the selected operational conditions (150 °C for 30 min), EMIMAc pretreatment led to favorable percentages of cellulose and xylan recoveries (88% and 66%, respectively), and resulted in about a 13‐fold increase in cellulose conversion and a 20‐fold increase in xylan with respect to the untreated raw material.CONCLUSION The valorization of Acacia dealbata by EMIMAc pretreatments followed by enzymatic hydrolysis of the resulting solids led to high fermentable glucose yields suitable as carbon sources for the biotechnological production of chemicals and biofuels. © 2013 Society of Chemical Industry