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

Author: Zhu, J.Y.; Chandra, M. Subhosh; Gleisner, Roland; Gilles, William T.; Gao, Johnway; Marrs, Gevan; Anderson, Dwight; Sessions, John;

Date: 2015

Source: Tappi Journal. 14(9): 577-583.

Publication Series: Scientific Journal (JRNL)

Description: 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-basedsulfite 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.

Keywords: Forest residues, ethanol, pretreatment, high solids, enzymatic saccharification and fermentation

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Zhu, J.Y.; Chandra, M. Subhosh; Gleisner, Roland; Gilles, William; Gao, Johnway; Marrs, Gevan; Anderson, Dwight; Sessions, John. 2015. Case studies on sugar production from underutilized woody biomass using sulfite chemistry. Tappi Journal. 14(9): 577-583.

 


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