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

Abstract:

:Fermentable sugars production from three kind of steam-exploded oak wood was optimized by Response Surface Methodology (RSM), using the severity factor (R0), 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.

journal_name

Bioresour Technol

journal_title

Bioresource technology

authors

Cotana F,Buratti C,Barbanera M,Lascaro E

doi

10.1016/j.biortech.2015.09.047

subject

Has Abstract

pub_date

2015-12-01 00:00:00

pages

470-7

eissn

0960-8524

issn

1873-2976

pii

S0960-8524(15)01318-8

journal_volume

198

pub_type

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