Research progress on organic acid pretreatment of lignocellulose

Huang, Kaixuan; Su, Kaiyue; Mohan, Mood; Chen, Jiayi; Xu, Yong; Zhou, Xin

doi:10.1016/j.ijbiomac.2025.142325

Research progress on organic acid pretreatment of lignocellulose

Journal Article · Wed Mar 19 00:00:00 EDT 2025 · International Journal of Biological Macromolecules

DOI:https://doi.org/10.1016/j.ijbiomac.2025.142325· OSTI ID:2573382

Huang, Kaixuan ^[1]; Su, Kaiyue ^[2]; ^[3]; Chen, Jiayi ^[2]; Xu, Yong ^[4]; Zhou, Xin ^[4]

Yancheng Teachers University (China); Nanjing Forestry Univ. (China)
Yancheng Teachers University (China)
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Nanjing Forestry Univ. (China)

Lignocellulosic biomass is a naturally occurring, renewable resource that is utilized to produce a variety of high–value-added products, such as fuels, acids, and building block chemicals. The pretreatment of lignocellulosic biomass is a crucial step in the deconstruction and fractionation of its components. Organic acids, such as formic, acetic, lactic, and maleic acids, have been widely studied for their effectiveness in lignocellulose pretreatment. Organic acid–based pretreatment techniques are gaining increased attention due to their ability to selectively separate hemicellulose and cellulose, promote oligomer formation, and minimize byproducts. This paper presents a comprehensive review of the various advancements in the science and application of organic acids for the pretreatment of lignocellulose. Furthermore, the significant challenges of organic acid recovery after pretreatment are highlighted, and different recovery methods are discussed. In conclusion, the future challenges related to utilizing organic acids for lignocellulose pretreatment are summarized, with a strong emphasis on adopting a sustainable approach to converting valuable bioresources into renewable products.

View Accepted Manuscript (DOE)

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: International Innovation Center for Forest Chemicals and Materials; Natural Science Foundation of the Jiangsu Higher Education Institutions of China; Research Startup Foundation of Yancheng Teachers University; USDOE Office of Science (SC), Biological and Environmental Research (BER)

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 2573382

Journal Information:: International Journal of Biological Macromolecules, Journal Name: International Journal of Biological Macromolecules Journal Issue: 4 Vol. 307; ISSN 0141-8130

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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