Enabling Lignin Valorization Through Integrated Advances in Plant Biology and Biorefining

Area of Science:

• Biomass valorization
• Lignocellulosic bioeconomy
• Plant biology and chemical engineering

Background:

• Lignin, traditionally an impediment in biomass processing, is now recognized as crucial for the lignocellulosic bioeconomy.
• The utility of lignin for producing paper, biofuels, and high-value chemicals depends on its specific composition and form.
• Effective lignin valorization necessitates integrating plant biology for feedstock optimization with chemical process engineering for efficient transformation.

Purpose of the Study:

• To review the interface between in planta lignin design and lignin processing.
• To discuss advances required for lignin valorization in biorefining.

Main Methods:

• Review of recent advances in understanding lignin biosynthesis.
• Review of developments in lignin refining processes.
• Analysis of the interplay between plant biology and chemical engineering for lignin valorization.

Main Results:

• Lignin structure is highly diverse and can be tuned through plant biology.
• Lignin refining processes are becoming more agnostic to lignin composition.
• Integration of plant-based design and chemical processing is essential for lignin valorization.

Conclusions:

• Lignin valorization is a critical component of the advanced lignocellulosic bioeconomy.
• Tailoring lignin via plant biology and efficient processing are key to unlocking its potential.
• Further advances are needed to fully integrate lignin design and processing for biorefining.