Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2014 Jan 8;7:6. doi: 10.1186/1754-6834-7-6

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2014 Rico et al.; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

PMC Copyright notice

Main lignin structures identified in the eucalypt samples analyzed by heteronuclear single quantum correlation nuclear magnetic resonance (Figures1 and3 ). A = β-O-4ʹ lignin substructures (including a second S or G unit); Aox = C_α-oxidized β-O-4ʹ lignin substructures; B = phenylcoumarans; C = resinols; D = spirodienones; I = cinnamyl alcohol end-groups; G = guaiacyl units; S = syringyl units; and Sʹ = C_α-oxidized S units (R can be a hydroxyl in carboxylic acids or a lignin side-chain in ketones).