Abstract：
:The logging and lumbering industry in the Pacific Northwest region generates huge amount of forest residues, offering an inexpensive raw material for biorefineries. Wet explosion (WEx) pretreatment was applied to the recalcitrant biomass to optimize process conditions including temperature (170-190 °C), time (10-30 min), and oxygen loading (0.5-7.5% of DM) through an experimental design. Optimal pH for enzymatic hydrolysis of the optimized samples and a complete mass balance have been evaluated. Results indicated that cellulose digestibility improved in all conditions tested with maximum digestibility achieved at 190 °C, time 30 min, and oxygen loading of 7.5%. Glucose yield at optimal pH of 5.5 was 63.3% with an excellent recovery of cellulose and lignin of 99.9% and 96.3%, respectively. Hemicellulose sugars recovery for xylose and mannose was found to be 69.2% and 76.0%, respectively, indicating that WEx is capable of producing relative high sugar yield even from the recalcitrant forest residues.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Biswas R,Teller PJ,Ahring BKdoi
10.1016/j.biortech.2015.05.043subject
Has Abstractpub_date
2015-09-01 00:00:00pages
46-53eissn
0960-8524issn
1873-2976pii
S0960-8524(15)00707-5journal_volume
192pub_type
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