Correlation between lignin content and syringyl-to-guaiacyl (S/G) ratio of <i>Eucalyptus globulus</i> wood-Reference-Cited by-同舟云学术

Correlation between lignin content and syringyl-to-guaiacyl (S/G) ratio of Eucalyptus globulus wood

Published:2022-07-18 Issue:9 Volume:76 Page:791-798
ISSN:0018-3830
Container-title:Holzforschung
language:en
Short-container-title:

Author:

Alves Ana¹,Rodrigues José C.¹^ORCID

Affiliation:

1. Centro de Estudos Florestais , Instituto Superior de Agronomia, Universidade de Lisboa , Tapada da Ajuda, 1349-017 Lisboa , Portugal

Abstract

Abstract Eucalyptus globulus Labill is an important raw material for pulpwood for which low lignin content and high S/G ratios are important parameters. This work shows a highly significant positive and strong correlation between S/G ratio and acid-soluble lignin (ASL) content among E. globulus trees. Although significant, the negative correlation between the S/G ratio and Klason lignin is weak, and there is no correlation with total lignin content. The Klason residue has a lower S/G ratio than that of the original wood. This suggests that the contribution of the S units to the solubilisation of lignin in acidic conditions is not limited to the S units but also to the G units. This effect becomes more pronounced as the percentage of S units increases.

Publisher

Walter de Gruyter GmbH

Subject

Biomaterials

Link

https://www.degruyter.com/document/doi/10.1515/hf-2021-0119/pdf

Reference56 articles.

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