English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/98717
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar otros formatos: Exportar EndNote (RIS)Exportar EndNote (RIS)Exportar EndNote (RIS)
Título

Biografting of ferulic acid onto lignocellulosic fibers by the use of laccases

Autor Rencoret, Jorge ; Aracri, Elisabetta; Gutiérrez Suárez, Ana ; Río Andrade, José Carlos del ; Torres, Antonio; Vidal, Teresa; Martínez, Ángel T.
Palabras clave Biografting
Cellulose pulp
Laccases
Sisal pulp
Ferulic acid
2D NMR
Fecha de publicación 24-jun-2014
EditorCSIC - Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS)
Citación Proceedings of the 13th European Workshop on Lignocellulosics and Pulp, pp. 703-706 (2014)
ResumenLaccases can functionalize paper pulps with phenolic compounds but little is known about the formed linkages. Treatment of a high-kappa sisal pulp with Trametes villosa laccase and ferulic acid resulted in strong increases of kappa-number and acid-group content. This suggested extensive incorporation of ferulic acid, as confirmed by pyrolysis in the presence of tetramethylammonium hydroxide. The coupling linkages were investigated by 2DNMR of the lignin isolated from pulps. The aromatic region of the spectra showed incorporation of the cinnamic molecule, representing ~4% of the lignin content. Interestingly, the spectra revealed that ferulic acid is C4-etherified. The aliphatic region of the spectra showed that ferulic acid also incorporates as the corresponding β-β' dilactone (another ~4% of the total lignin) with characteristic 13Cα-1Hα and 13Cβ-1Hβ correlations. The lignin composition and interunit linkages in the treated pulps were only slightly modified revealing that the main effect of the treatment was ferulic acid biografting.
URI http://hdl.handle.net/10261/98717
ISBN 978-84-616-9842-4
Aparece en las colecciones: (CIB) Libros y partes de libros
(IRNAS) Libros y partes de libros
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
pp-703-706-Proceedings-13thEWLP-BIOGRAFTING OF FERULIC ACID ONTO LIGNOCELLULOSIC FIBERS.pdf2,99 MBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.