High value-added lignin extracts from sugarcane by-products

Mota, Maria Inês Ferreira da; Burgal, João da Silva; Antunes, Filipa; Pintado, Manuela; Costa, Patrícia Santos

doi:10.1016/j.ijbiomac.2023.123144

Cited by 6 publications

(3 citation statements)

References 45 publications

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“…Aromatic compounds such as guaiacol, catechol, and phenol have characteristic fragrances [45]. These compounds can be used as feedstock to produce chemicals and materials [46,47]. Finally, lignin-derived ash is a residual byproduct of the pretreatment process and is composed of inorganic compounds, such as potassium, magnesium, and calcium.…”

Section: Biofuels From Lignocellulosic Biomassmentioning

confidence: 99%

Sugarcane Bagasse: Challenges and Opportunities for Waste Recycling

Hiranobe,

Gomes,

Paiva

et al. 2024

Clean Technol.

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Sugarcane has primarily been used for sugar and ethanol production. It creates large quantities of residual lignocellulosic biomass such as sugarcane bagasse, leaves, tops, and vinasse. Biomass is a sustainable prospect for biorefineries aiming to optimize production processes. We detail recent research developments in recycling sugarcane, including energy generation and pyrolysis to obtain biofuels, for example. To produce biochar, the energy cost of operating at high temperatures and large-scale production remain as obstacles. The energy generation prospects can be enhanced by pellet production; however, it requires an improvement in quality control for long-term storage or long-distance transportation. In civil construction, the materials still need to prove their long-term efficiency and reliability. Related to adsorbent materials, the use of sugarcane bagasse has the advantage of being low-cost and environmentally friendly. Nevertheless, the extraction, functionalization, and modification of cellulose fibers, to improve their adsorption properties or even mode of operation, still challenges. The synthesis of nanostructures is still lacking high yields and the ability to scale up. Finally, controlling dispersion and orientation and avoiding fiber agglomeration could improve the mechanical response of composites using sugarcane bagasse. The different possibilities for using sugarcane and its residues reinforce the importance of this material for the industry and the global economy. Thus, the present work addresses current challenges and perspectives of different industrial processes involving sugarcane aiming to support future research on waste-derived subjects.

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Section: Biofuels From Lignocellulosic Biomassmentioning

confidence: 99%

Sugarcane Bagasse: Challenges and Opportunities for Waste Recycling

Hiranobe,

Gomes,

Paiva

et al. 2024

Clean Technol.

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“…The second sub-category focuses on the applications of lignin in various fields. Research and review papers have been published exploring the utilization of lignin for value-added chemicals [ 29 , 128 , 129 ], biopolymers [ 130 , 131 , 132 , 133 ], and lignin-based carbon applications [ 134 , 135 , 136 ]. Additionally, several reviews have concentrated on lignin conversion technologies, addressing different pathways and strategies for fuel production [ 137 , 138 , 139 , 140 , 141 ].…”

Section: Two-step Fractionation For Lignin Extraction and Its Valoriz...mentioning

confidence: 99%

“…The solubilization and delignification yields were up to 53% and 81%, respectively [128] Two-step/Milling and oxy-organosolv Wheat straw (Triticum aestivum) First, the straw was pretreated by removing the peel and cutting it up. 1 to 5 mm and 100-500 µm sizes of straw were used for further The water-to-ethanol ratio was 3:7 (v/v) to 1:9 (v/v), and the straw-to-liquid ratio was 1:15 to 1:25 with a temperature range of 70 In the first step, 57-69% of the lignin was removed, and this study's main aim was to increase enzyme accessibility.…”

Section: Two-step Fractionation For Lignin Extraction and Its Valoriz...mentioning

confidence: 99%

Lignin Extraction by Using Two-Step Fractionation: A Review

Tanis,

Wallberg,

Galbe

et al. 2023

Molecules

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Lignocellulosic biomass represents the most abundant renewable carbon source on earth and is already used for energy and biofuel production. The pivotal step in the conversion process involving lignocellulosic biomass is pretreatment, which aims to disrupt the lignocellulose matrix. For effective pretreatment, a comprehensive understanding of the intricate structure of lignocellulose and its compositional properties during component disintegration and subsequent conversion is essential. The presence of lignin-carbohydrate complexes and covalent interactions between them within the lignocellulosic matrix confers a distinctively labile nature to hemicellulose. Meanwhile, the recalcitrant characteristics of lignin pose challenges in the fractionation process, particularly during delignification. Delignification is a critical step that directly impacts the purity of lignin and facilitates the breakdown of bonds involving lignin and lignin-carbohydrate complexes surrounding cellulose. This article discusses a two-step fractionation approach for efficient lignin extraction, providing viable paths for lignin-based valorization described in the literature. This approach allows for the creation of individual process streams for each component, tailored to extract their corresponding compounds.

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Valorization of biochar and lignin derived from the NaOH pretreatment of lignocellulosic biomass for applications as an adsorbent and antioxidant

Song,

Lee

2024

Biomass and Bioenergy

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High value-added lignin extracts from sugarcane by-products

Cited by 6 publications

References 45 publications

Sugarcane Bagasse: Challenges and Opportunities for Waste Recycling

Sugarcane Bagasse: Challenges and Opportunities for Waste Recycling

Lignin Extraction by Using Two-Step Fractionation: A Review

Valorization of biochar and lignin derived from the NaOH pretreatment of lignocellulosic biomass for applications as an adsorbent and antioxidant

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