Abstract：
:Tulip tree sawdust was pretreated using hot compressed water with different pretreatment severities (LogR0, 3.05-5.01) by varying reaction temperatures (180-220°C) and residence time (1-30 min). It is found that the chemical composition and physicochemical properties of the pretreated products can be characterized and correlated with severity. Removal of most of the xylan and other hemicellulosic sugars from the raw material was observed at a severity of 4.5. Thus, the residual solids were recovered with increased cellulose and lignin contents. Nearly complete glucan conversion was achieved after 48 h of hydrolysis with 10 FPU/g of wet residual solid obtained above a severity of 4.8. The characteristics of the pretreated solids according to the pretreatment severity were strongly related with the glucose yield. The removal of structural barriers to the enzyme attack was the dominant factor affecting enzyme accessibility to the substrate.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Kim DS,Myint AA,Lee HW,Yoon J,Lee YWdoi
10.1016/j.biortech.2013.06.071subject
Has Abstractpub_date
2013-09-01 00:00:00pages
460-6eissn
0960-8524issn
1873-2976pii
S0960-8524(13)00990-5journal_volume
144pub_type
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