Optimization of the steam explosion and enzymatic hydrolysis for sugars production from oak woods.

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Bibliographic Details
Title: Optimization of the steam explosion and enzymatic hydrolysis for sugars production from oak woods.
Authors: Cotana, F.1, Buratti, C.1 cinzia.buratti@unipg.it, Barbanera, M.1, Lascaro, E.1
Source: Bioresource Technology. Dec2015, Vol. 198, p470-477. 8p.
Subjects: Enzymatic analysis, Hydrolysis, Sugar analysis, Biomass production, Fermentation
Abstract: Fermentable sugars production from three kind of steam-exploded oak wood was optimized by Response Surface Methodology (RSM), using the severity factor ( R 0 ), the pretreated total solids (TS%) and the enzyme loading (EL%) as variables of a central composite design. A total of 17 experiments for each biomass were carried out. The optimal conditions established with RSM were: severity, 4.46 for holm, 4.03 for turkey oak and 3.92 for downey oak; total solids, 5.4% for holm, 5.0% for turkey oak and 12.7% for downey oak; and enzyme concentration, 9.6% for holm, 15.0% for turkey oak and 15.0% for downey oak. Under these conditions, the model predicted an overall sugar yield of 67.1% for holm, 79.9% for turkey oak and 68.4% for downey oak. The results of the confirmation experiments under optimal conditions agreed well with model predictions. Oak wood species may be a good feedstock for the production of reducing sugars. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
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