Py-GC-MS and FTIR analyses of lignins from non-woody plants used for manufacturing high-quality paper pulps

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Título:	Py-GC-MS and FTIR analyses of lignins from non-woody plants used for manufacturing high-quality paper pulps
Autor:	Río Andrade, José Carlos del CSIC ORCID ; Ibarra, David CSIC ORCID; Gutiérrez Suárez, Ana CSIC ORCID ; Martínez, Ángel T. CSIC ORCID
Palabras clave:	Lignin Nonwoody fibers Alkaline pulps Py-GC/MS FT-IR
Fecha de publicación:	26-ago-2002
Citación:	7th European Workshop on Lignocellulosics and Pulp, Turku/Abo, Finland, pp. 213-216.
Resumen:	A series of lignins isolated from non-woody plants after alkaline treatment have been characterized upon Py-GC/MS and FTIR. Pyrolysis compounds originated from the three different lignin units, p-hydroxyphenyl (H), guaiacyl (G) and syringyl (S), were identified and their relative peak areas were quantified. The S/G ratios obtained were compared with those calculated from intensities of 1327 and 1271 cm-1 FT-IR bands after resolution enhancement. The results indicated that flax and wheat alkaline lignins have a predominance of G units whereas sisal, abaca and jute alkaline lignins have a predominance of S units.
URI:	http://hdl.handle.net/10261/86435
Aparece en las colecciones:	(IRNAS) Comunicaciones congresos