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Related Experiment Video

Updated: Dec 29, 2025

Quantitative 31P NMR Analysis of Lignins and Tannins

Quantitative 31P NMR Analysis of Lignins and Tannins

Published on: August 2, 2021

The relation between lignin sequence and its 3D structure.

Takat B Rawal¹, Mai Zahran², Brittiny Dhital²

¹UT/ORNL Center for Molecular Biophysics, Oak Ridge National Laboratory, Oak Ridge, TN, United States of America; Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville, TN 37996, United States of America.

Biochimica Et Biophysica Acta. General Subjects

|February 8, 2020

Summary

The sequence of lignin molecules does not significantly alter their overall 3D structure. Lignin

Keywords:

Biomass Lignin Molecular simulation

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Last Updated: Dec 29, 2025

Quantitative 31P NMR Analysis of Lignins and Tannins

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Published on: August 2, 2021

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Ultrafast Lignin Extraction from Unusual Mediterranean Lignocellulosic Residues

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Published on: March 9, 2021

Area of Science:

Biochemistry
Polymer Science
Plant Biology

Background:

Lignin is a crucial biopolymer providing structural integrity and water transport in plants.
Understanding lignin's 3D structure is vital for plant engineering and lignin valorization.
Lignin's lack of a defined primary sequence complicates structural studies.

Purpose of the Study:

To investigate the influence of lignin's primary sequence on its global 3D structure.
To determine if sequence variations impact lignin's structural properties.

Main Methods:

All-atom molecular dynamics simulations were employed.
Three S/G-lignin molecules with identical average composition but varied sequences were simulated.

Main Results:

Statistical analysis showed no significant effect of lignin sequence on global 3D structure.
C-lignin homopolymers exhibited smaller radii of gyration than S/G-lignin.
Lower hydroxyl content in C-lignin contributes to its more compact and rigid structure.

Conclusions:

Lignin's 3D structure is determined by the content of monomeric units and linkages, not its precise sequence.
The global 3D structure of lignin is independent of its primary sequence.