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Citeable URL: http://ir.library.oregonstate.edu/concern/articles/6d56zz15m

To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The published article is copyrighted by Elsevier and can be found at:  http://www.journals.elsevier.com/bioresource-technology.

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Attribute Name	Values
Creator	Sessions, John Gleisner, Roland Anderson, Dwight Marrs, Gevan Zhu, J. Y. Gu, Feng Reiner, Rick Chandra, M. Subhosh Gao, Johnway
Abstract or Summary	This study demonstrated at the pilot-scale (50 kg) use of Douglas-fir forest harvest residue, an underutilized forest biomass, for the production of high titer and high yield bioethanol using sulfite chemistry without solid–liquor separation and detoxification. Sulfite Pretreatment to Overcome the Recalcitrance of Lignocelluloses (SPORL) was directly applied to the ground forest harvest residue with no further mechanical size reduction, at a low temperature of 145°C and calcium bisulfite or total SO₂ loadings of only 6.5 or 6.6 wt% on oven dry forest residue, respectively. The low temperature pretreatment facilitated high solids fermentation of the un-detoxified pretreated whole slurry. An ethanol yield of 282 L/tonne, equivalent to 70% theoretical, with a titer of 42 g/L was achieved. SPORL solubilized approximately 45% of the wood lignin as directly marketable lignosulfonate with properties equivalent to or better than a commercial lignosulfonate, important to improve the economics of biofuel production.
Resource Type	Article
DOI	10.1016/j.biortech.2014.12.052
Date Available	2015-03-10T22:33:58+00:00
Date Issued	2015-03
Citation	Zhu, J. Y., Chandra, M. S., Gu, F., Gleisner, R., Reiner, R., Sessions, J., ... & Anderson, D. (2015). Using sulfite chemistry for robust bioconversion of Douglas-fir forest residue to bioethanol at high titer and lignosulfonate: A pilot-scale evaluation. Bioresource Technology, 179, 390-397. doi:10.1016/j.biortech.2014.12.052
Series	Bioresource Technology Vol. 179
Keyword	High titer biofuel Pretreatment Lignosulfonate Sulfite pulping Forest residues
Rights Statement	Copyright Not Evaluated
Funding Statement (additional comments about funding)	The authors would like to acknowledge the financial support of the Agriculture and Food Research Initiative (AFRI) Competitive grant (No. 2011-68005-30416), USDA National Institute of Food and Agriculture (NIFA) through the Northwest Advanced Renewables Alliance (NARA). Funding was also received from University Grants Commission (UGC), New Delhi, India for the visiting appointment of Dr. Chandra at the USDA Forest Products Lab.
Publisher	Elsevier
Peer Reviewed	Yes
Language	English [eng]
Replaces	http://hdl.handle.net/1957/55290
Additional Information	description.provenance : Submitted by Erin Clark (erin.clark@oregonstate.edu) on 2015-03-10T22:33:41Z No. of bitstreams: 1 SessionsJohnForestryUsingSulfiteChemistry.pdf: 1461955 bytes, checksum: 416fc4ae91773eecc48eb211468f9d7d (MD5) description.provenance : Made available in DSpace on 2015-03-10T22:33:58Z (GMT). No. of bitstreams: 1 SessionsJohnForestryUsingSulfiteChemistry.pdf: 1461955 bytes, checksum: 416fc4ae91773eecc48eb211468f9d7d (MD5) Previous issue date: 2015-03 description.provenance : Approved for entry into archive by Erin Clark(erin.clark@oregonstate.edu) on 2015-03-10T22:33:58Z (GMT) No. of bitstreams: 1 SessionsJohnForestryUsingSulfiteChemistry.pdf: 1461955 bytes, checksum: 416fc4ae91773eecc48eb211468f9d7d (MD5)

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