Catalysis with CuII(bpy) improves alkaline hydrogen peroxide pretreatment

Zhenglun Li, Charles H. Chen, Tongjun Liu, Vaidyanathan Mathrubootham, Eric L. Hegg, David B. Hodge

    Research output: Research - peer-reviewArticle

    • 10 Citations

    Abstract

    Copper(II) 2,2′-bipyridine (CuII(bpy))-catalyzed alkaline hydrogen peroxide (AHP) pretreatment was performed on three biomass feedstocks including alkali pre-extracted switchgrass, silver birch, and a hybrid poplar cultivar. This catalytic approach was found to improve the subsequent enzymatic hydrolysis of plant cell wall polysaccharides to monosaccharides for all biomass types at alkaline pH relative to uncatalyzed pretreatment. The hybrid poplar exhibited the most significant improvement in enzymatic hydrolysis with monomeric sugar release and conversions more than doubling from 30% to 61% glucan conversion, while lignin solubilization was increased from 36.6% to 50.2% and hemicellulose solubilization was increased from 14.9% to 32.7%. It was found that CuII(bpy)-catalyzed AHP pretreatment of cellulose resulted in significantly more depolymerization than uncatalyzed AHP pretreatment (78.4% vs. 49.4% decrease in estimated degree of polymerization) and that carboxyl content the cellulose was significantly increased as well (fivefold increase vs. twofold increase). Together, these results indicate that CuII(bpy)-catalyzed AHP pretreatment represents a promising route to biomass deconstruction for bioenergy applications. Biotechnol. Bioeng. 2013; 110: 1078-1086.

    LanguageEnglish (US)
    Pages1078-1086
    Number of pages9
    JournalBiotechnology and Bioengineering
    Volume110
    Issue number4
    DOIs
    StatePublished - Apr 2013

    Profile

    Catalysis
    Hydrogen Peroxide
    Hydrogen peroxide
    Biomass
    Cellulose
    Hydrolysis
    Enzymatic hydrolysis
    Panicum
    Betula
    2,2'-Dipyridyl
    Glucans
    Monosaccharides
    Lignin
    Plant Cells
    Alkalies
    Silver
    Polymerization
    Cell Wall
    Polysaccharides
    Copper

    Keywords

    • Bioenergy
    • Cellulosic biofuels
    • Chemical pretreatment
    • Cu(bpy)
    • Lignin

    ASJC Scopus subject areas

    • Biotechnology
    • Bioengineering
    • Applied Microbiology and Biotechnology

    Cite this

    Catalysis with CuII(bpy) improves alkaline hydrogen peroxide pretreatment. / Li, Zhenglun; Chen, Charles H.; Liu, Tongjun; Mathrubootham, Vaidyanathan; Hegg, Eric L.; Hodge, David B.

    In: Biotechnology and Bioengineering, Vol. 110, No. 4, 04.2013, p. 1078-1086.

    Research output: Research - peer-reviewArticle

    Li, Zhenglun ; Chen, Charles H. ; Liu, Tongjun ; Mathrubootham, Vaidyanathan ; Hegg, Eric L. ; Hodge, David B./ Catalysis with CuII(bpy) improves alkaline hydrogen peroxide pretreatment. In: Biotechnology and Bioengineering. 2013 ; Vol. 110, No. 4. pp. 1078-1086
    @article{9e06f98a28d74ad8b2295e023294106b,
    title = "Catalysis with CuII(bpy) improves alkaline hydrogen peroxide pretreatment",
    abstract = "Copper(II) 2,2′-bipyridine (CuII(bpy))-catalyzed alkaline hydrogen peroxide (AHP) pretreatment was performed on three biomass feedstocks including alkali pre-extracted switchgrass, silver birch, and a hybrid poplar cultivar. This catalytic approach was found to improve the subsequent enzymatic hydrolysis of plant cell wall polysaccharides to monosaccharides for all biomass types at alkaline pH relative to uncatalyzed pretreatment. The hybrid poplar exhibited the most significant improvement in enzymatic hydrolysis with monomeric sugar release and conversions more than doubling from 30% to 61% glucan conversion, while lignin solubilization was increased from 36.6% to 50.2% and hemicellulose solubilization was increased from 14.9% to 32.7%. It was found that CuII(bpy)-catalyzed AHP pretreatment of cellulose resulted in significantly more depolymerization than uncatalyzed AHP pretreatment (78.4% vs. 49.4% decrease in estimated degree of polymerization) and that carboxyl content the cellulose was significantly increased as well (fivefold increase vs. twofold increase). Together, these results indicate that CuII(bpy)-catalyzed AHP pretreatment represents a promising route to biomass deconstruction for bioenergy applications. Biotechnol. Bioeng. 2013; 110: 1078-1086.",
    keywords = "Bioenergy, Cellulosic biofuels, Chemical pretreatment, Cu(bpy), Lignin",
    author = "Zhenglun Li and Chen, {Charles H.} and Tongjun Liu and Vaidyanathan Mathrubootham and Hegg, {Eric L.} and Hodge, {David B.}",
    year = "2013",
    month = "4",
    doi = "10.1002/bit.24793",
    volume = "110",
    pages = "1078--1086",
    journal = "Biotechnology and Bioengineering",
    issn = "0006-3592",
    publisher = "Wiley-VCH Verlag",
    number = "4",

    }

    TY - JOUR

    T1 - Catalysis with CuII(bpy) improves alkaline hydrogen peroxide pretreatment

    AU - Li,Zhenglun

    AU - Chen,Charles H.

    AU - Liu,Tongjun

    AU - Mathrubootham,Vaidyanathan

    AU - Hegg,Eric L.

    AU - Hodge,David B.

    PY - 2013/4

    Y1 - 2013/4

    N2 - Copper(II) 2,2′-bipyridine (CuII(bpy))-catalyzed alkaline hydrogen peroxide (AHP) pretreatment was performed on three biomass feedstocks including alkali pre-extracted switchgrass, silver birch, and a hybrid poplar cultivar. This catalytic approach was found to improve the subsequent enzymatic hydrolysis of plant cell wall polysaccharides to monosaccharides for all biomass types at alkaline pH relative to uncatalyzed pretreatment. The hybrid poplar exhibited the most significant improvement in enzymatic hydrolysis with monomeric sugar release and conversions more than doubling from 30% to 61% glucan conversion, while lignin solubilization was increased from 36.6% to 50.2% and hemicellulose solubilization was increased from 14.9% to 32.7%. It was found that CuII(bpy)-catalyzed AHP pretreatment of cellulose resulted in significantly more depolymerization than uncatalyzed AHP pretreatment (78.4% vs. 49.4% decrease in estimated degree of polymerization) and that carboxyl content the cellulose was significantly increased as well (fivefold increase vs. twofold increase). Together, these results indicate that CuII(bpy)-catalyzed AHP pretreatment represents a promising route to biomass deconstruction for bioenergy applications. Biotechnol. Bioeng. 2013; 110: 1078-1086.

    AB - Copper(II) 2,2′-bipyridine (CuII(bpy))-catalyzed alkaline hydrogen peroxide (AHP) pretreatment was performed on three biomass feedstocks including alkali pre-extracted switchgrass, silver birch, and a hybrid poplar cultivar. This catalytic approach was found to improve the subsequent enzymatic hydrolysis of plant cell wall polysaccharides to monosaccharides for all biomass types at alkaline pH relative to uncatalyzed pretreatment. The hybrid poplar exhibited the most significant improvement in enzymatic hydrolysis with monomeric sugar release and conversions more than doubling from 30% to 61% glucan conversion, while lignin solubilization was increased from 36.6% to 50.2% and hemicellulose solubilization was increased from 14.9% to 32.7%. It was found that CuII(bpy)-catalyzed AHP pretreatment of cellulose resulted in significantly more depolymerization than uncatalyzed AHP pretreatment (78.4% vs. 49.4% decrease in estimated degree of polymerization) and that carboxyl content the cellulose was significantly increased as well (fivefold increase vs. twofold increase). Together, these results indicate that CuII(bpy)-catalyzed AHP pretreatment represents a promising route to biomass deconstruction for bioenergy applications. Biotechnol. Bioeng. 2013; 110: 1078-1086.

    KW - Bioenergy

    KW - Cellulosic biofuels

    KW - Chemical pretreatment

    KW - Cu(bpy)

    KW - Lignin

    UR - http://www.scopus.com/inward/record.url?scp=84874218044&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84874218044&partnerID=8YFLogxK

    U2 - 10.1002/bit.24793

    DO - 10.1002/bit.24793

    M3 - Article

    VL - 110

    SP - 1078

    EP - 1086

    JO - Biotechnology and Bioengineering

    T2 - Biotechnology and Bioengineering

    JF - Biotechnology and Bioengineering

    SN - 0006-3592

    IS - 4

    ER -