Effect of Hot-Pressing Temperature on the Subsequent Enzymatic Saccharification and Fermentation Performance of SPORL Pretreated Forest Biomass

Jingzhi Zhang; Andrea Laguna; Craig Clemons; Michael P. Wolcott; Rolland Gleisner; J. Y. Zhu; Xu Zhang

doi:10.1007/s12155-014-9530-9

Effect of Hot-Pressing Temperature on the Subsequent Enzymatic Saccharification and Fermentation Performance of SPORL Pretreated Forest Biomass

Jingzhi Zhang, Andrea Laguna, Craig Clemons, Michael P. Wolcott, Rolland Gleisner, J. Y. Zhu, Xu Zhang

Agricultural & Biological Engineering

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

Methods to increase the energy density of biofuel feedstock for shipment are important towards improving supply chain efficiency in upstream processes. Towards this end, densified pretreated lignocellulosic biomass was produced using hot-pressing. The effects of fiber hornification induced by hot-pressing on enzymatic digestibilities of lodgepole pine and poplar NE222 wood chips pretreated by sulfite pretreatment to overcome recalcitrance of lignocelluloses (SPORL) were examined. Pretreated wood chips were pressed at 25, 70, 90, 110, and 177 °C. The cellulose accessibilities of the pressed and unpressed substrates were evaluated using water retention value and direct cellulase adsorption measurements. Hot-pressing below 110 °C produced a degree of hornification (DH) below 0.26 and had limited effect on cellulose accessibility and enzymatic digestibility. Hot-pressing at 177 °C produced a DH of 0.86 that substantially hornified the fibers and resulted near zero saccharification. The saccharification results were consistent with cellulose accessibility data. Ethanol fermentation studies at 18 % solids suggest that a pressing below 110 °C is preferred to reduce its effect on biofuel yield.

Original language	English (US)
Pages (from-to)	464-470
Number of pages	7
Journal	Bioenergy Research
Volume	8
Issue number	1
DOIs	https://doi.org/10.1007/s12155-014-9530-9
State	Published - Mar 2015

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
Agronomy and Crop Science
Energy (miscellaneous)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1007/s12155-014-9530-9

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@article{57bf2a6401244f918e4229c3e1b9f4d1,

title = "Effect of Hot-Pressing Temperature on the Subsequent Enzymatic Saccharification and Fermentation Performance of SPORL Pretreated Forest Biomass",

abstract = "Methods to increase the energy density of biofuel feedstock for shipment are important towards improving supply chain efficiency in upstream processes. Towards this end, densified pretreated lignocellulosic biomass was produced using hot-pressing. The effects of fiber hornification induced by hot-pressing on enzymatic digestibilities of lodgepole pine and poplar NE222 wood chips pretreated by sulfite pretreatment to overcome recalcitrance of lignocelluloses (SPORL) were examined. Pretreated wood chips were pressed at 25, 70, 90, 110, and 177 °C. The cellulose accessibilities of the pressed and unpressed substrates were evaluated using water retention value and direct cellulase adsorption measurements. Hot-pressing below 110 °C produced a degree of hornification (DH) below 0.26 and had limited effect on cellulose accessibility and enzymatic digestibility. Hot-pressing at 177 °C produced a DH of 0.86 that substantially hornified the fibers and resulted near zero saccharification. The saccharification results were consistent with cellulose accessibility data. Ethanol fermentation studies at 18 % solids suggest that a pressing below 110 °C is preferred to reduce its effect on biofuel yield.",

author = "Jingzhi Zhang and Andrea Laguna and Craig Clemons and Wolcott, {Michael P.} and Rolland Gleisner and Zhu, {J. Y.} and Xu Zhang",

note = "Funding Information: We would like to acknowledge the financial support from the Agriculture and Food Research Initiative Competitive grant (no. 2011-68005-30416) and USDA National Institute of Food and Agriculture (NIFA) through the Northwest Advanced Renewables Alliance (NARA) and the Chinese Scholarship Council (CSC). These two programs made the visiting appointment of Jinzhi Zhang at the USDA Forest Products Lab (FPL) possible. The USDA-NIFA funding also supported Andrea Laguna{\textquoteright}s summer internship at FPL through the Washington State University Summer Undergraduate Research Program. We also would like to acknowledge Phil Walsh and Fred Matt of FPL for pressing the chips and carbohydrate analysis, respectively. Publisher Copyright: {\textcopyright} 2014, Springer Science+Business Media New York (outside the USA).",

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doi = "10.1007/s12155-014-9530-9",

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AU - Laguna, Andrea

AU - Clemons, Craig

AU - Wolcott, Michael P.

AU - Gleisner, Rolland

AU - Zhu, J. Y.

AU - Zhang, Xu

N1 - Funding Information: We would like to acknowledge the financial support from the Agriculture and Food Research Initiative Competitive grant (no. 2011-68005-30416) and USDA National Institute of Food and Agriculture (NIFA) through the Northwest Advanced Renewables Alliance (NARA) and the Chinese Scholarship Council (CSC). These two programs made the visiting appointment of Jinzhi Zhang at the USDA Forest Products Lab (FPL) possible. The USDA-NIFA funding also supported Andrea Laguna’s summer internship at FPL through the Washington State University Summer Undergraduate Research Program. We also would like to acknowledge Phil Walsh and Fred Matt of FPL for pressing the chips and carbohydrate analysis, respectively. Publisher Copyright: © 2014, Springer Science+Business Media New York (outside the USA).

PY - 2015/3

Y1 - 2015/3

N2 - Methods to increase the energy density of biofuel feedstock for shipment are important towards improving supply chain efficiency in upstream processes. Towards this end, densified pretreated lignocellulosic biomass was produced using hot-pressing. The effects of fiber hornification induced by hot-pressing on enzymatic digestibilities of lodgepole pine and poplar NE222 wood chips pretreated by sulfite pretreatment to overcome recalcitrance of lignocelluloses (SPORL) were examined. Pretreated wood chips were pressed at 25, 70, 90, 110, and 177 °C. The cellulose accessibilities of the pressed and unpressed substrates were evaluated using water retention value and direct cellulase adsorption measurements. Hot-pressing below 110 °C produced a degree of hornification (DH) below 0.26 and had limited effect on cellulose accessibility and enzymatic digestibility. Hot-pressing at 177 °C produced a DH of 0.86 that substantially hornified the fibers and resulted near zero saccharification. The saccharification results were consistent with cellulose accessibility data. Ethanol fermentation studies at 18 % solids suggest that a pressing below 110 °C is preferred to reduce its effect on biofuel yield.

AB - Methods to increase the energy density of biofuel feedstock for shipment are important towards improving supply chain efficiency in upstream processes. Towards this end, densified pretreated lignocellulosic biomass was produced using hot-pressing. The effects of fiber hornification induced by hot-pressing on enzymatic digestibilities of lodgepole pine and poplar NE222 wood chips pretreated by sulfite pretreatment to overcome recalcitrance of lignocelluloses (SPORL) were examined. Pretreated wood chips were pressed at 25, 70, 90, 110, and 177 °C. The cellulose accessibilities of the pressed and unpressed substrates were evaluated using water retention value and direct cellulase adsorption measurements. Hot-pressing below 110 °C produced a degree of hornification (DH) below 0.26 and had limited effect on cellulose accessibility and enzymatic digestibility. Hot-pressing at 177 °C produced a DH of 0.86 that substantially hornified the fibers and resulted near zero saccharification. The saccharification results were consistent with cellulose accessibility data. Ethanol fermentation studies at 18 % solids suggest that a pressing below 110 °C is preferred to reduce its effect on biofuel yield.

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Effect of Hot-Pressing Temperature on the Subsequent Enzymatic Saccharification and Fermentation Performance of SPORL Pretreated Forest Biomass

Abstract

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