Identifying acetylated lignin units in non‐wood fibers using pyrolysis‐gas chromatography/mass spectrometry

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-09-15T00:31:48Z
Fecha de publicación2004-01-01
ResumenAbstract A series of non‐wood plant fibers, namely kenaf, jute, sisal and abaca, have been analyzed upon pyrolysis‐gas chromatography/mass spectrometry (Py‐GC/MS) of the whole material. The pyrolysis products mainly arise from the carbohydrate and lignin moieties of the fibers. The lignin‐derived phenols belonged to the p ‐hydroxyphenylpropanoid (H), guaiacylpropanoid (G) and syringylpropanoid (S) structures, and showed a high S/G ratio of between 2.0 and 5.4, the highest corresponding to kenaf. Among the lignin‐derived phenols released, small amounts of sinapyl and coniferyl acetates (in both cis ‐ and trans ‐forms) were identified for the first time upon Py‐GC/MS of lignocellulosic materials. Acetylation of the sinapyl and coniferyl alcohols was at the γ ‐position of the side chain. The release of these alcohols derived from intact acetylated lignin units upon pyrolysis seems to indicate that the native lignin in the fibers selected for this study is at least partially acetylated. Sinapyl (and coniferyl) acetates have recently been suggested to be authentic lignin precursors involved in the polymerization of lignin along with the normal sinapyl and coniferyl alcohols. Py‐GC/MS will offer a convenient and rapid tool for analyzing naturally acetylated lignins, as well as to screen plant materials for the presence of acetylated units in lignin. Copyright © 2004 John Wiley & Sons, Ltd.es_ES
Doihttps://doi.org/10.1002/rcm.1457es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/3514
Idiomaenes_ES
EditorialWileyes_ES
RelaciónRapid Communications in Mass Spectrometryes_ES
URL relacionadohttps://doi.org/10.1002/rcm.1457es_ES
DerechosAcceso restringido / Suscripción (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_16eces_ES
FuenteRapid Communications in Mass Spectrometry
TítuloIdentifying acetylated lignin units in non‐wood fibers using pyrolysis‐gas chromatography/mass spectrometryes_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorRío, José C. del
AutorGutiérrez, Ana
AutorMartínez, Ángel T.
AutorRío, José C. deles_ES
AutorGutiérrez, Anaes_ES
AutorMartínez, Ángel T.es_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
Número11es_ES
Rango de páginas1181-1185es_ES
URL relacionadahttps://doi.org/10.1002/rcm.1457
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen18es_ES

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