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Madison, WI 53726-2398
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Title: Robust And Efficient Enzymatic Saccharification Of Softwoods By Sporl

Source: In: Proceedings of the 15th international symposium on wood, fiber and pulping chemistry. 2009 June 15-18; Oslo, Norway: Oslo, Norway: Congress-Conference AS, www,congrex.no. P-033, 3 p. limited availability.

Author(s)Zhu, J.Y.; Pan, X.J; Zhu, W.; Wang, G.S.; Gleisner, R.

Publication Year: 2009  View PDF »

Category: Conference Proceedings
Associated Research Project(s):   FPL-4709-1A

Abstract: This study demonstrated Sulfite Pretreatment to Overcome Recalcitrance of Lignocellulose (SPORL) for robust conversion of softwood through enzymatic hydrolysis. At a sodium bisulfite charge around 9%, over 90% cellulose conversion could be achieved when spruce wood chips were pretreated at 180°C with pH near 2. For lodgepole pine, pretreatment liquor initial pH had no effect on enzymatic cellulose conversion in the tested range of 1.9 - 4.2 with a sodium bisulfite charge of 8%. The dissolution of glucan during pretreatment was only about 10%. Most of the hemicelluloses were recovered as monomeric fermentable sugars in the pretreatment spent liquor. SPORL was developed based on sulfite pulping, and therefore has a precedent for excellent scalability for future commercialization.

Keywords: Alcohol, fuelwood, carbohydrates, spruce, biomass energy, biomass utilization, cellulose, hemicellulose, hydrolysis, wood chips, pretreatment, feedstock, enzymes, industrial applications, biotechnology, sulfuric acid, biotechnology, lodgepole pine, fermentation, lignocellulose, sugars, glucose, ethanol, SPORL, bioconversion, biorefining, saccharification, sodium bisulfite, chips, lodgepole pine, wood extractives, chemical utilization, sulfonation, sulfite liquors

Publication Review Process: Informally Refereed (Peer-Reviewed)

File size: 2,009 kb(s)

Date posted: 10/22/2010

This publication is also viewable on Treesearch:  view
RITS Product ID: 31900
Current FPL Scientists associated with this product (listed alphabetically)
Wang, Xiping
Research Forest Products Technologist
Zhu, JunYong
Research General Engineer
 

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