Chemical Transformations of Buddleja davidii Lignin during Ethanol Organosolv Pretreatment
Publication type: Journal Article
Publication date: 2010-03-25
scimago Q1
wos Q1
SJR: 1.124
CiteScore: 9.5
Impact factor: 5.3
ISSN: 08870624, 15205029
General Chemical Engineering
Energy Engineering and Power Technology
Fuel Technology
Abstract
Detailed chemical structural elucidation of ethanol organosolv lignin (EOL) of Buddleja davidii was performed to determine the fundamental structure released from an ethanol organosolv pretreatment (EOP). Several nuclear magnetic resonance (NMR) techniques were used to analyze the structure of EOL, including quantitative 13C, 31P NMR, and qualitative DEPT-135 13C, 2D 1H−13C correlation NMR. As revealed by NMR, the aryl-O-ether linkage (β-O-4′) of lignin was extensively cleaved via homolysis during pretreatment and led to the formation of stilbene structures. Other linkages, such as resinol (β-β′) and phenylcoumaran (β-5′), were resistant to degradation. The high degree of condensation of EOL indicated that condensation reactions occurred but did not impede the delignification efficiency of EOP. Both guaiacyl and syringyl lignin were found to be reactive toward condensation during pretreatment. The results from gel-permeation chromatography showed that the degree of polymerization (DP) of lignin significantly decreased by ∼85%, facilitating lignin solubilization in ethanol.
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118
Total citations:
118
Citations from 2024:
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(6.77%)
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GOST
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Hallac B. B., Pu Y., Ragauskas A. Chemical Transformations of Buddleja davidii Lignin during Ethanol Organosolv Pretreatment // Energy & Fuels. 2010. Vol. 24. No. 4. pp. 2723-2732.
GOST all authors (up to 50)
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Hallac B. B., Pu Y., Ragauskas A. Chemical Transformations of Buddleja davidii Lignin during Ethanol Organosolv Pretreatment // Energy & Fuels. 2010. Vol. 24. No. 4. pp. 2723-2732.
Cite this
RIS
Copy
TY - JOUR
DO - 10.1021/ef901556u
UR - https://doi.org/10.1021/ef901556u
TI - Chemical Transformations of Buddleja davidii Lignin during Ethanol Organosolv Pretreatment
T2 - Energy & Fuels
AU - Hallac, Bassem B
AU - Pu, Yunqiao
AU - Ragauskas, Arthur
PY - 2010
DA - 2010/03/25
PB - American Chemical Society (ACS)
SP - 2723-2732
IS - 4
VL - 24
SN - 0887-0624
SN - 1520-5029
ER -
Cite this
BibTex (up to 50 authors)
Copy
@article{2010_Hallac,
author = {Bassem B Hallac and Yunqiao Pu and Arthur Ragauskas},
title = {Chemical Transformations of Buddleja davidii Lignin during Ethanol Organosolv Pretreatment},
journal = {Energy & Fuels},
year = {2010},
volume = {24},
publisher = {American Chemical Society (ACS)},
month = {mar},
url = {https://doi.org/10.1021/ef901556u},
number = {4},
pages = {2723--2732},
doi = {10.1021/ef901556u}
}
Cite this
MLA
Copy
Hallac, Bassem B., et al. “Chemical Transformations of Buddleja davidii Lignin during Ethanol Organosolv Pretreatment.” Energy & Fuels, vol. 24, no. 4, Mar. 2010, pp. 2723-2732. https://doi.org/10.1021/ef901556u.