Chemical structure elucidation of milled wood lignin and cellulytic lignin from Poplar

Mirshokraei, Sayed Ahmad; Abdolkhani, Ali; Karimi, Alinaghi

doi:10.22092/ijwpr.2008.117409

Document Type : Research Paper

Authors

¹ Professor, Dept. of Chemistry, Payame Noor University,Ozgol, Tehran, Iran

² Ph.D student,Dept. of wood and Paper, Faculty of Natural Resources,University of Tehran, Karaj, Iran

³ Associate Professor, Dept. of wood and Paper, Faculty of Natural Resources, University of Tehran ,Karaj, Iran

https://doi.org/10.22092/ijwpr.2008.117409

Abstract

In this paper, a novel enzymatic method was evaluated for isolation and purification of wood lignin. The chemical structure of enzymatic lignin (Cellulytic lignin) was compared with conventional Bjorkman method (Milled wood lignin). The chemical structure elucidation was performed with FTIR, quantative ¹³CNMR, basic elemental analysis and Gel Permeation Chromatography (GPC). The results showed that enzymatic lignin preparation has a better chemical structure than MWL. Comparing to conventional isolation methods, application of an enzyme sequence with reduced milling time could lead to a mild extraction with less structural degradation of lignin. Resulting lignin could be more representative for wood lignin than milled wood lignin.

Keywords

Main Subjects

Chemistry of wood

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Iranian Journal of Wood and Paper Science Research

Chemical structure elucidation of milled wood lignin and cellulytic lignin from Poplar

References

References

Volume 23, Issue 2 - Serial Number 29
October 2008
Pages 102-122

Chemical structure elucidation of milled wood lignin and cellulytic lignin from Poplar

References

References

Volume 23, Issue 2 - Serial Number 29October 2008Pages 102-122

Volume 23, Issue 2 - Serial Number 29
October 2008
Pages 102-122