Evaluation of biomass-derived solvents and protic ionic liquids as lignin-selective pretreatment agents for poplar fractionation

Haykır, Nazife Işık

doi:10.1080/02773813.2022.2033781

Cited by 6 publications

(3 citation statements)

References 58 publications

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“…Aqueous systems, both basic and acidic in nature, have long been known for dissolving lignocellulosic biomass, at rather harsh conditions (Aresta et al, 2021). In quest for solvents and solvent systems that work at less harsh conditions, several new approaches emerged in the more recent past: Some ionic liquids (ILs) such as 1-benzyl-3-methylimidazolium chloride (Xu et al, 2010) have been found to selectively dissolve cellulose and hemicellulose; protic ionic liquids were shown to bring preferentially lignin in solution (Haykir, 2022). Others were found to dissolve all structural polymers simultaneously (Roy and Chundawat, 2022).…”

Section: Emerging Treatments Using Novel Solvents and Solvent Systemsmentioning

confidence: 99%

Role and importance of solvents for the fractionation of lignocellulosic biomass

Thoresen

Lange

Christakopoulos

et al. 2023

Bioresource Technology

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Section: Emerging Treatments Using Novel Solvents and Solvent Systemsmentioning

confidence: 99%

Role and importance of solvents for the fractionation of lignocellulosic biomass

Thoresen

Lange

Christakopoulos

et al. 2023

Bioresource Technology

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“…In addition, lignin can be selectively removed from biomass in its native form in high purity using pyridinium formate based protic ionic liquids (PILs) at 75 °C (Hasanov et al, 2022). For example, poplar biomass pretreatment with PILs combined with green solvents such as gamma-valerolactone and levulinic acid has enhanced deligninfication, and thus preserves the structure of cellulose (Haykir, 2022). Furthermore, ILs, PILs, and DES can be combined with thermo-mechanical methods for biomass pretreatment.…”

Section: Progress In Lignin Fractionation and Depolymerization Chemic...mentioning

confidence: 99%

Spatio-Temporal Modification of Lignin Biosynthesis in Plants: A Promising Strategy for Lignocellulose Improvement and Lignin Valorization

Wang

Gui

Jian-gang

et al. 2022

Front. Bioeng. Biotechnol.

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Lignin is essential for plant growth, structural integrity, biotic/abiotic stress resistance, and water transport. Besides, lignin constitutes 10–30% of lignocellulosic biomass and is difficult to utilize for biofuel production. Over the past few decades, extensive research has uncovered numerous metabolic pathways and genes involved in lignin biosynthesis, several of which have been highlighted as the primary targets for genetic manipulation. However, direct manipulation of lignin biosynthesis is often associated with unexpected abnormalities in plant growth and development for unknown causes, thus limiting the usefulness of genetic engineering for biomass production and utilization. Recent advances in understanding the complex regulatory mechanisms of lignin biosynthesis have revealed new avenues for spatial and temporal modification of lignin in lignocellulosic plants that avoid growth abnormalities. This review explores recent work on utilizing specific transcriptional regulators to modify lignin biosynthesis at both tissue and cellular levels, focusing on using specific promoters paired with functional or regulatory genes to precisely control lignin synthesis and achieve biomass production with desired properties. Further advances in designing more appropriate promoters and other regulators will increase our capacity to modulate lignin content and structure in plants, thus setting the stage for high-value utilization of lignin in the future.

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“…The LA solvent system gave 70% lignin removal and cellulose recovery of 89%. Besides, LA extracted lignin presented less condensed structures …”

Section: Introductionmentioning

confidence: 97%

Challenges and Opportunities for Gamma-Valerolactone in Biomass Pretreatment

Haykir,

Viell

2024

Ind. Eng. Chem. Res.

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Solvent-aided biomass pretreatment strategies for biorefineries need to address several key points including effective biomass valorization, energy demand, and waste minimization. More specifically, solvents' yield, recovery, and recycling are crucial parameters to improve biorefineries' environmental and economic performances. Gamma-valerolactone (GVL) presents significant promise in biomass pretreatment due to its ability to effectively remove hemicellulose and lignin or provide near-complete biomass solubilization and facilitate hydrolysis. However, GVL utilization is challenging due to its higher cost and the difficulty of recycling it as a high-boiling solvent. Herein, we discuss biomass pretreatment with GVL and solvent recovery. GVL recovery, being conceptual at this stage, has to be proven in the field. It could be realized through liquid−liquid extraction. However, most studies do not address the reutilization of GVL, the separation of heavy-boiling impurities, or the solid−liquid separation of the remaining solids, which are significant gaps in the literature and a limitation to industrialization.

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Evaluation of biomass-derived solvents and protic ionic liquids as lignin-selective pretreatment agents for poplar fractionation

Cited by 6 publications

References 58 publications

Role and importance of solvents for the fractionation of lignocellulosic biomass

Role and importance of solvents for the fractionation of lignocellulosic biomass

Spatio-Temporal Modification of Lignin Biosynthesis in Plants: A Promising Strategy for Lignocellulose Improvement and Lignin Valorization

Challenges and Opportunities for Gamma-Valerolactone in Biomass Pretreatment

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