Abstract：
:Lignocellulosic biomass is a sustainable source of renewable substrate to produce low carbon footprint energy and materials. Biomass conversion is usually performed in two steps: a biomass pretreatment for improving cellulose accessibility followed by enzymatic hydrolysis of cellulose. In this study we investigated the efficiency of a bioextrusion pretreatment (extrusion in the presence of cellulase enzyme) for production of reducing sugars from corn crop agricultural residues. Our results demonstrate that bioextrusion increased the reducing sugar conversion yield by at least 94% at high solid/liquid ratio (14%-40%). Monitoring biomass surface with carbohydrate-binding modules (FTCM-depletion assay) revealed that well known negative impact of high solid/liquid ratio on conversion yield is not due to the lack of exposed cellulose which was abundant under such conditions. Bioextrusion was found to be less efficient on alkaline pretreated biomass but being a mild and solvent limiting pretreatment, it might help to minimize the waste stream.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Gatt E,Khatri V,Bley J,Barnabé S,Vandenbossche V,Beauregard Mdoi
10.1016/j.biortech.2019.03.045subject
Has Abstractpub_date
2019-06-01 00:00:00pages
398-406eissn
0960-8524issn
1873-2976pii
S0960-8524(19)30394-3journal_volume
282pub_type
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