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Case studies on sugar production from underutilized woody biomass using sulfite chemistry

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https://ir.library.oregonstate.edu/concern/articles/x059c911z

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Abstract
  • We examined two case studies to demonstrate the advantages of sulfite chemistry for pretreating underutilized woody biomass to produce sugars through enzymatic saccharification. In the first case study, we evaluated knot rejects from a magnesium-based sulfite mill for direct enzymatic sugar production. We found that the sulfite mill rejects are an excellent feedstock for sugar production. In the second study, we presented SPORL (sulfite pretreatment to overcome the recalcitrance of lignocelluloses), a sulfite pretreatment process based on modified sulfite pulping for robust bioconversion of softwood forest residues. Sulfite pulping technology is well developed, with proven commercial scalability, and sulfite pretreatment is a strong contender for commercial adoption. Application: Mills can consider sulfite chemistry, which has the advantage of high-yield sugar production from woody biomass through enzymatic saccharification.
  • This is the publisher’s final pdf. The published article is copyrighted by Tappi Press and can be found at: http://www.tappi.org/tappijournal
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  • Zhu, J. Y., Chandra, M. S., Gleisner, R., Gilles, W. T., Gao, J., Marrs, G., ... & Sessions, J. (2015). Case studies on sugar production from underutilized woody biomass using sulfite chemistry. Tappi Journal, 14(9), 577-583.
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  • 14
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  • 9
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  • The authors are thankful for the financial support of the Agriculture and Food Research Initiative 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 Laboratory.
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