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Comprehensive Study on the Chemical Structure of Dioxane Lignin from Plantation Eucalyptus globulus Wood
Abstract
Results of a comprehensive study on the chemical structure of lignin from plantation Eucalyptus globulus Labill are presented. Lignin has been isolated by a modified mild acidolysis method and thoroughly characterized by functional group analysis, by a series of degradation techniques (nitrobenzene oxidation, permanganate oxidation, thioacidolysis, and Py-GC-MS), and (1)H and (13)C NMR spectroscopy. Plantation Eucalyptus globulus lignin was found to be of the S/G type with an extremely high proportion of syringyl (S) units (82-86%) and a minor proportion of p-hydrophenyl propane (H) units (roughly 2-3 mol %). Unknown C-6 substituted and 4-O-5' type syringyl substructures represent about 65% of lignin "condensed" structures. Eucalypt lignin showed high abundance of beta-O-4 (0.56/C(6)) structures and units linked by alpha-O-4 bonds (0.23/C(6)). The proportion of phenylcoumaran structures was relatively low (0.03/C(6)). Different kinds of beta-beta substructures (pino-/syringaresinol and isotaxiresinol types) in a total amount of 0.13/C(6) were detected. ESI-MS analysis revealed a wide molecular weight distribution of lignin with the center of gravity of mass distribution around 2500 u.
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Citations
Cited by
Catalytic Transformation of Lignin for the Production of Chemicals and Fuels
Li, C., Zhao, X., Wang, A., Huber, G. W., & Zhang, T. (2015) · Chemical Reviews · doi:10.1021/acs.chemrev.5b00155 · Cited by 2,951
Song, Q., Wang, F., Cai, J., Wang, Y., Zhang, J., Yu, W., & Xu, J. (2013) · Energy & Environmental Science · doi:10.1039/c2ee23741e · Cited by 891
Current advancement on the isolation, characterization and application of lignin
Liao, J. J., Latif, N. H. A., Trache, D., Brosse, N., & Hussin, M. H. (2020) · International Journal of Biological Macromolecules · doi:10.1016/j.ijbiomac.2020.06.168 · Cited by 425
Milled Wood Lignin: A Linear Oligomer
Crestini, C., Melone, F., Sette, M., & Saladino, R. (2011) · Biomacromolecules · doi:10.1021/bm200948r · Cited by 335
Capanema, E. A., Balakshin, M. Y., & Kadla, J. F. (2005) · Journal of Agricultural and Food Chemistry · doi:10.1021/jf0515330 · Cited by 277
Metadata
- Authors
- Evtuguin, D. V., Neto, C. P., Silva, A. M. S., Domingues, P. M., Amado, F. M. L., Robert, D., & Faix, O.
- Venue
- Journal of Agricultural and Food Chemistry
- Publisher
- American Chemical Society (ACS)
- Published
- 2001-08-08
- Volume
- 49
- Issue
- 9
- Pages
- 4252-4261
- ISSN
- 0021-8561 (ISSN-L)
- 1520-5118
- OpenAlex
- W1979186467
- Cited by
- 239
- References
- 0
- FWCI
- 4.01
- Type
- journal article
- Language
- en
- Open access
- closed
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- Evtuguin, D. V., Neto, C. P., Silva, A. M. S., Domingues, P. M., Amado, F. M. L., Robert, D., & Faix, O. (2001). Comprehensive Study on the Chemical Structure of Dioxane Lignin from Plantation Eucalyptus globulus Wood. Journal of Agricultural and Food Chemistry. https://doi.org/10.1021/jf010315d
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