Structural characterization of guaiacyl-rich lignins in flax (Linum usitatissimum) fibers and shives
11 páginas, 6 figuras, 6 tablas -- PAGS nros. 11088-11099
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| Format: | artículo biblioteca |
| Language: | English |
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American Chemical Society
2011-10-26
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| Subjects: | Flax, Linum usitatissimum, Fibers, Shives, Py-GC/MS, HSQC, Thioacidolysis, Milled wood lignin, |
| Online Access: | http://hdl.handle.net/10261/50932 http://dx.doi.org/10.13039/501100003339 http://dx.doi.org/10.13039/501100000780 |
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dig-irnas-es-10261-509322022-04-07T11:23:48Z Structural characterization of guaiacyl-rich lignins in flax (Linum usitatissimum) fibers and shives Río Andrade, José Carlos del Rencoret, Jorge Gutiérrez Suárez, Ana Nieto, Lidia Jiménez-Barbero, Jesús Martínez, Ángel T. Ministerio de Educación (España) Consejo Superior de Investigaciones Científicas (España) European Commission Flax Linum usitatissimum Fibers Shives Py-GC/MS HSQC Thioacidolysis Milled wood lignin 11 páginas, 6 figuras, 6 tablas -- PAGS nros. 11088-11099 The structural characteristics of the lignins from flax (Linum usitatissimum) fibers and shives were studied. Significant differences in the content and composition of the lignin from both parts were observed. The lignin contents were 3.8% in the fibers and 29.0% in the shives. Analysis by Py-GC/MS indicated a H:G:S molar ratio of 13:72:15 in the milled wood lignin (MWL) isolated from flax fibers and a molar ratio of 5:87:8 in the MWL isolated from flax shives. In addition, 2D-NMR showed a predominance of β-O-4′ aryl ether linkages, followed by β-5′ phenylcoumaran and β-β′ resinol-type linkages in both MWLs, with a higher content of condensed linkages in flax shives. Thioacidolysis (followed by Raney nickel desulfurization) gave further information on the lignin units involved in the different linkages and confirmed the enrichment of G units. The thioacidolysis dimers released were similar from both lignins, with a predominance of the β-5′ followed by β-1′ and 5-5′ structures This study has been funded by the Spanish Project AGL2008-00709, CSIC Projects 200640I039 and 201040E075, and EU Projects BIORENEW (NMP2-CT-2006-026456) and LIGNODECO (KBBE-244362). J.R. thanks the Spanish CSIC for an I3P fellowship; G.M. thanks the Spanish Ministry of Education for a FPI fellowship Peer reviewed 2012-06-06T09:05:15Z 2012-06-06T09:05:15Z 2011-10-26 artículo http://purl.org/coar/resource_type/c_6501 Journal of Agricultural and Food Chemistry 59(20): 11088-11099(2011) 0021-8561 http://hdl.handle.net/10261/50932 10.1021/jf201222r 1520-5118 http://dx.doi.org/10.13039/501100003339 http://dx.doi.org/10.13039/501100000780 en http://dx.doi.org/10.1021/jf201222r none American Chemical Society |
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biblioteca |
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| topic |
Flax Linum usitatissimum Fibers Shives Py-GC/MS HSQC Thioacidolysis Milled wood lignin Flax Linum usitatissimum Fibers Shives Py-GC/MS HSQC Thioacidolysis Milled wood lignin |
| spellingShingle |
Flax Linum usitatissimum Fibers Shives Py-GC/MS HSQC Thioacidolysis Milled wood lignin Flax Linum usitatissimum Fibers Shives Py-GC/MS HSQC Thioacidolysis Milled wood lignin Río Andrade, José Carlos del Rencoret, Jorge Gutiérrez Suárez, Ana Nieto, Lidia Jiménez-Barbero, Jesús Martínez, Ángel T. Structural characterization of guaiacyl-rich lignins in flax (Linum usitatissimum) fibers and shives |
| description |
11 páginas, 6 figuras, 6 tablas -- PAGS nros. 11088-11099 |
| author2 |
Ministerio de Educación (España) |
| author_facet |
Ministerio de Educación (España) Río Andrade, José Carlos del Rencoret, Jorge Gutiérrez Suárez, Ana Nieto, Lidia Jiménez-Barbero, Jesús Martínez, Ángel T. |
| format |
artículo |
| topic_facet |
Flax Linum usitatissimum Fibers Shives Py-GC/MS HSQC Thioacidolysis Milled wood lignin |
| author |
Río Andrade, José Carlos del Rencoret, Jorge Gutiérrez Suárez, Ana Nieto, Lidia Jiménez-Barbero, Jesús Martínez, Ángel T. |
| author_sort |
Río Andrade, José Carlos del |
| title |
Structural characterization of guaiacyl-rich lignins in flax (Linum usitatissimum) fibers and shives |
| title_short |
Structural characterization of guaiacyl-rich lignins in flax (Linum usitatissimum) fibers and shives |
| title_full |
Structural characterization of guaiacyl-rich lignins in flax (Linum usitatissimum) fibers and shives |
| title_fullStr |
Structural characterization of guaiacyl-rich lignins in flax (Linum usitatissimum) fibers and shives |
| title_full_unstemmed |
Structural characterization of guaiacyl-rich lignins in flax (Linum usitatissimum) fibers and shives |
| title_sort |
structural characterization of guaiacyl-rich lignins in flax (linum usitatissimum) fibers and shives |
| publisher |
American Chemical Society |
| publishDate |
2011-10-26 |
| url |
http://hdl.handle.net/10261/50932 http://dx.doi.org/10.13039/501100003339 http://dx.doi.org/10.13039/501100000780 |
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