Morphological changes in the cellulose and lignin components of biomass occur at different stages of steam pretreatment
Abstract
Morphological changes to the different components of lignocellulosic biomass were observed as they occurred during steam pretreatment by placing a pressure reaction cell in a neutron beam and collecting time-resolved neutron scattering data. Changes to cellulose morphology occurred mainly in the heating phase, whereas changes in lignin morphology occurred mainly in the holding and cooling phases. During the heating stage, water is irreversibly expelled from cellulose microfibrils as the elementary fibrils coalesce. During the holding phase lignin aggregates begin to appear and they increase in size most noticeably during the cooling phase. This experiment demonstrates the unique information that in situ small angle neutron scattering studies of pretreatment can provide. This approach is potentially useful in optimizing the heating, holding and cooling stages of pretreatments to allow the exact size and nature of lignin aggregates to be controlled in order to enhance enzyme accessibility to cellulose and therefore the efficiency of biomass conversion.
- Authors:
-
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Centre de Recherches sur les Macromolecules Vegetales (CERMAV-CNRS) (France)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1214458
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Cellulose (Online)
- Additional Journal Information:
- Journal Name: Cellulose (Online); Journal Volume: 21; Journal Issue: 2; Journal ID: ISSN 1572-882X
- Publisher:
- Springer
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 09 BIOMASS FUELS
Citation Formats
Pingali, Sai Venkatesh, O'Neill, Hugh Michael, Nishiyama, Yoshiharu, He, Lilin, Melnichenko, Yuri B., Urban, Volker S., Petridis, Loukas, Davison, Brian H., and Langan, Paul. Morphological changes in the cellulose and lignin components of biomass occur at different stages of steam pretreatment. United States: N. p., 2014.
Web. doi:10.1007/s10570-013-0162-6.
Pingali, Sai Venkatesh, O'Neill, Hugh Michael, Nishiyama, Yoshiharu, He, Lilin, Melnichenko, Yuri B., Urban, Volker S., Petridis, Loukas, Davison, Brian H., & Langan, Paul. Morphological changes in the cellulose and lignin components of biomass occur at different stages of steam pretreatment. United States. https://doi.org/10.1007/s10570-013-0162-6
Pingali, Sai Venkatesh, O'Neill, Hugh Michael, Nishiyama, Yoshiharu, He, Lilin, Melnichenko, Yuri B., Urban, Volker S., Petridis, Loukas, Davison, Brian H., and Langan, Paul. Thu .
"Morphological changes in the cellulose and lignin components of biomass occur at different stages of steam pretreatment". United States. https://doi.org/10.1007/s10570-013-0162-6. https://www.osti.gov/servlets/purl/1214458.
@article{osti_1214458,
title = {Morphological changes in the cellulose and lignin components of biomass occur at different stages of steam pretreatment},
author = {Pingali, Sai Venkatesh and O'Neill, Hugh Michael and Nishiyama, Yoshiharu and He, Lilin and Melnichenko, Yuri B. and Urban, Volker S. and Petridis, Loukas and Davison, Brian H. and Langan, Paul},
abstractNote = {Morphological changes to the different components of lignocellulosic biomass were observed as they occurred during steam pretreatment by placing a pressure reaction cell in a neutron beam and collecting time-resolved neutron scattering data. Changes to cellulose morphology occurred mainly in the heating phase, whereas changes in lignin morphology occurred mainly in the holding and cooling phases. During the heating stage, water is irreversibly expelled from cellulose microfibrils as the elementary fibrils coalesce. During the holding phase lignin aggregates begin to appear and they increase in size most noticeably during the cooling phase. This experiment demonstrates the unique information that in situ small angle neutron scattering studies of pretreatment can provide. This approach is potentially useful in optimizing the heating, holding and cooling stages of pretreatments to allow the exact size and nature of lignin aggregates to be controlled in order to enhance enzyme accessibility to cellulose and therefore the efficiency of biomass conversion.},
doi = {10.1007/s10570-013-0162-6},
journal = {Cellulose (Online)},
number = 2,
volume = 21,
place = {United States},
year = {Thu Jan 09 00:00:00 EST 2014},
month = {Thu Jan 09 00:00:00 EST 2014}
}
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Works referenced in this record:
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Works referencing / citing this record:
Molecular-level driving forces in lignocellulosic biomass deconstruction for bioenergy
journal, October 2018
- Petridis, Loukas; Smith, Jeremy C.
- Nature Reviews Chemistry, Vol. 2, Issue 11
On the solution structure of kraft lignin in ethylene glycol and its implication for nanoparticle preparation
journal, January 2019
- Yang, Mingkun; Zhao, Wenwen; Singh, Seema
- Nanoscale Advances, Vol. 1, Issue 1
Modification of the nanostructure of lignocellulose cell walls via a non-enzymatic lignocellulose deconstruction system in brown rot wood-decay fungi
journal, July 2017
- Goodell, Barry; Zhu, Yuan; Kim, Seong
- Biotechnology for Biofuels, Vol. 10, Issue 1
Tension wood structure and morphology conducive for better enzymatic digestion
journal, February 2018
- Sawada, Daisuke; Kalluri, Udaya C.; O’Neill, Hugh
- Biotechnology for Biofuels, Vol. 11, Issue 1
Progress and Opportunities in the Characterization of Cellulose – An Important Regulator of Cell Wall Growth and Mechanics
journal, March 2019
- Rongpipi, Sintu; Ye, Dan; Gomez, Enrique D.
- Frontiers in Plant Science, Vol. 9