Abstract：
:The aim of this study were to efficiently produce fermentable sugars by continuous type supercritical water hydrolysis (SCWH) of Quercus mongolica at the pilot scale with varying acid catalyst loading and to use the obtained sugars for ethanol production. The SCWH of biomass was achieved in under one second (380°C, 230bar) using 0.01-0.1% H2SO4. With 0.05% H2SO4, 49.8% of sugars, including glucose (16.5% based on biomass) and xylose monomers (10.8%), were liberated from biomass. The hydrolysates were fermented with S. cerevisiae DXSP and D452-2 to estimate ethanol production. To prepare the fermentation medium, the hydrolysates were detoxified using activated charcoal and then concentrated. The ethanol yield of fermentation with S. cerevisiae DXSP was 14.1% (based on biomass). The proposed system has potential for improvement in yield through process optimization. After further development, it is expected to be a competitive alternative to traditional systems for ethanol production from woody biomass.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Jeong H,Park YC,Seong YJ,Lee SMdoi
10.1016/j.biortech.2017.08.058subject
Has Abstractpub_date
2017-12-01 00:00:00pages
351-357issue
Pt Aeissn
0960-8524issn
1873-2976pii
S0960-8524(17)31363-9journal_volume
245pub_type
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