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Annual Review of Plant Biology

Volume 75, 2024

Enabling Lignin Valorization Through Integrated Advances in Plant Biology and Biorefining

Abstract

Despite lignin having long been viewed as an impediment to the processing of biomass for the production of paper, biofuels, and high-value chemicals, the valorization of lignin to fuels, chemicals, and materials is now clearly recognized as a critical element for the lignocellulosic bioeconomy. However, the intended application for lignin will likely require a preferred lignin composition and form. To that end, effective lignin valorization will require the integration of plant biology, providing optimal feedstocks, with chemical process engineering, providing efficient lignin transformations. Recent advances in our understanding of lignin biosynthesis have shown that lignin structure is extremely diverse and potentially tunable, while simultaneous developments in lignin refining have resulted in the development of several processes that are more agnostic to lignin composition. Here, we review the interface between in planta lignin design and lignin processing and discuss the advances necessary for lignin valorization to become a feature of advanced biorefining.

Keyword(s): lignin depolymerization, lignin engineering, metabolic funneling, plant cell wall, reductive catalytic fractionation, sustainable aviation fuel
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/content/journals/10.1146/annurev-arplant-062923-022602
2024-07-22
2025-05-20
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/content/journals/10.1146/annurev-arplant-062923-022602
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Enabling Lignin Valorization Through Integrated Advances in Plant Biology and Biorefining
Annual Review of Plant Biology 75, 239 (2024); https://doi.org/10.1146/annurev-arplant-062923-022602
/content/journals/10.1146/annurev-arplant-062923-022602
/content/journals/10.1146/annurev-arplant-062923-022602
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