Abstract：
:The combination of autohydrolysis and ionic liquid microwave treatments of eucalyptus wood have been studied to facilitate sugar production in a subsequent enzymatic hydrolysis step. Three autohydrolysis conditions (150 °C, 175 °C and 200 °C) in combination with two ionic liquid temperatures (80 °C and 120 °C) were compared in terms of chemical composition, enzymatic digestibility and sugar production. Morphology was measured (using SEM) and the biomass surface was visualized with confocal fluorescence microscopy. The synergistic cooperation of both treatments was demonstrated, enhancing cellulose accessibility. At intermediate autohydrolysis conditions (175 °C) and low ionic liquid temperature (80 °C), a glucan digestibility of 84.4% was obtained. Using SEM micrographs, fractal dimension (as a measure of biomass complexity) and lacunarity (as a measure of homogeneity) were calculated before and after pretreatment. High fractals dimensions and low lacunarities correspond to morphologically complex and homogeneous samples, that are better digested by enzyme cocktails.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Rigual V,Santos TM,Domínguez JC,Alonso MV,Oliet M,Rodriguez Fdoi
10.1016/j.biortech.2017.12.034subject
Has Abstractpub_date
2018-03-01 00:00:00pages
197-203eissn
0960-8524issn
1873-2976pii
S0960-8524(17)32167-3journal_volume
251pub_type
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