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Engineered Lignin in Poplar Biomass Facilitates Cu-Catalyzed Alkaline-Oxidative

Bhalla, Aditya (author)
DOE Great Lakes Bioenergy Research Center, Michigan State University, 1129 Farm Lane, East Lansing, 48824, MI, United States; Department of Biochemistry and Molecular Biology, Michigan State University, 603 Wilson Road, East Lansing, 48824, MI, United States
Bansal, Namita (author)
DOE Great Lakes Bioenergy Research Center, Michigan State University, 1129 Farm Lane, East Lansing, 48824, MI, United States; Department of Biochemistry and Molecular Biology, Michigan State University, 603 Wilson Road, East Lansing, 48824, MI, United States
Pattathil, Sivakumar (author)
Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, 30602, GA, United States; BioEnergy Science Center, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, 37831, TN, United States
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Li, Muyang (author)
DOE Great Lakes Bioenergy Research Center, Michigan State University, 1129 Farm Lane, East Lansing, 48824, MI, United States; Department of Plant Biology, Michigan State University, 612 Wilson Road, East Lansing, 48824, MI, United States
Shen, Wei (author)
DOE Great Lakes Bioenergy Research Center, Michigan State University, 1129 Farm Lane, East Lansing, 48824, MI, United States; Department of Plant Biology, Michigan State University, 612 Wilson Road, East Lansing, 48824, MI, United States
Particka, Chrislyn A. (author)
DOE Great Lakes Bioenergy Research Center, Michigan State University, 1129 Farm Lane, East Lansing, 48824, MI, United States
Karlen, Steven D. (author)
DOE Great Lakes Bioenergy Research Center, University of Wisconsina'Madison, 1552 University Avenue, Madison, 53726, WI, United States; Department of Biochemistry, University of Wisconsina'Madison, 433 Babcock Drive, Madison, 53706, WI, United States
Phongpreecha, Thanaphong (author)
DOE Great Lakes Bioenergy Research Center, Michigan State University, 1129 Farm Lane, East Lansing, 48824, MI, United States; Department of Chemical Engineering and Materials Science, Michigan State University, 428 S. Shaw Lane, East Lansing, 48824, MI, United States
Semaan, Rachel R. (author)
Department of Biochemistry and Molecular Biology, Michigan State University, 603 Wilson Road, East Lansing, 48824, MI, United States
Gonzales-Vigil, Eliana (author)
Department of Biochemistry, University of Wisconsina'Madison, 433 Babcock Drive, Madison, 53706, WI, United States
Ralph, John (author)
DOE Great Lakes Bioenergy Research Center, University of Wisconsina'Madison, 1552 University Avenue, Madison, 53726, WI, United States; Department of Biochemistry, University of Wisconsina'Madison, 433 Babcock Drive, Madison, 53706, WI, United States
Mansfield, Shawn D. (author)
Department of Wood Science, University of British Columbia, 4030-2424 Main Mall, Vancouver, V6T 1Z4, BC, Canada
Ding, Shi-You (author)
DOE Great Lakes Bioenergy Research Center, Michigan State University, 1129 Farm Lane, East Lansing, 48824, MI, United States; Department of Plant Biology, Michigan State University, 612 Wilson Road, East Lansing, 48824, MI, United States
Hodge, David B. (author)
Luleå tekniska universitet,Kemiteknik,DOE Great Lakes Bioenergy Research Center, Michigan State University, 1129 Farm Lane, East Lansing, 48824, MI, United States; Department of Chemical Engineering and Materials Science, Michigan State University, 428 S. Shaw Lane, East Lansing, 48824, MI, United States; Department of Biosystems and Agricultural Engineering, Michigan State University, 524 S. Shaw Lane, East Lansing, 48824, MI, United States
Hegg, Eric L. (author)
DOE Great Lakes Bioenergy Research Center, Michigan State University, 1129 Farm Lane, East Lansing, 48824, MI, United States; Department of Biochemistry and Molecular Biology, Michigan State University, 603 Wilson Road, East Lansing, 48824, MI, United States
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DOE Great Lakes Bioenergy Research Center, Michigan State University, 1129 Farm Lane, East Lansing, 48824, MI, United States; Department of Biochemistry and Molecular Biology, Michigan State University, 603 Wilson Road, East Lansing, 48824, MI, United States Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, 30602, GA, United States; BioEnergy Science Center, Oak Ridge National Laboratory, PO. Box 2008, Oak Ridge, 37831, TN, United States (creator_code:org_t)
2018-01-22
2018
English.
In: ACS Sustainable Chemistry and Engineering. - : American Chemical Society (ACS). - 2168-0485. ; 6:3, s. 2932-2941
Related links:
https://urn.kb.se/re...
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https://doi.org/10.1...
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Both untransformed poplar and genetically modified “zip-lignin” poplar, in which additional ester bonds were introduced into the lignin backbone, were subjected to mild alkaline and copper-catalyzed alkaline hydrogen peroxide (Cu-AHP) pretreatment. Our hypothesis was that the lignin in zip-lignin poplar would be removed more easily than lignin in untransformed poplar during this alkaline pretreatment, resulting in higher sugar yields following enzymatic hydrolysis. We observed improved glucose and xylose hydrolysis yields for zip-lignin poplar compared to untransformed poplar following both alkaline-only pretreatment (56% glucose yield for untransformed poplar compared to 67% for zip-lignin poplar) and Cu-AHP pretreatment (77% glucose yield for untransformed poplar compared to 85% for zip-lignin poplar). Compositional analysis, glycome profiling, and microscopy all supported the notion that the ester linkages increase delignification and improve sugar yields. Essentially no differences were noted in the molecular weight distributions of solubilized lignins between the zip-lignin poplar and the control line. Significantly, when zip-lignin poplar was utilized as the feedstock, hydrogen peroxide, catalyst, and enzyme loadings could all be substantially reduced while maintaining high sugar yields.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Industriell bioteknik -- Bioprocessteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Industrial Biotechnology -- Bioprocess Technology (hsv//eng)

Keyword

Biokemisk processteknik
Biochemical Process Engineering

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ref (subject category)
art (subject category)

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