Alkali Pretreatment of Lignocellulose Feedstock Improves Morphological Structure and Biomethane Yield

Sustainability, Journal Year: 2025, Volume and Issue: 17(2), P. 534 - 534

Published: Jan. 12, 2025

This study investigates the effects of NaOH pretreatment on microstructural distribution and biomethane released from Xyris capensis. capensis was pretreated with using 1, 2, 3, 4, 5% w/w concentrations for 60, 45, 30, 20, 15 min exposure time, respectively, at a 90 °C autoclave temperature. The impacts technique arrangement, crystallinity, functional groups were examined scanning electron microscope (SEM), X-ray diffraction, Fourier transform infrared (FTIR), respectively. NaOH-pretreated untreated feedstocks digested laboratory scale mesophilic temperature (37 ± 2 °C) 35 days their potential. It discovered SEM analysis that affects arrangement capensis, sample longer time is most affected. results XRD FTIR also indicated lowered crystallinity feedstock significantly influenced varying degrees. Biomethane yield recorded to be 258.68, 287.80, 304.02, 328.20, 310.20, 135.06 mL CH4/gVSadded, representing 91.53, 113.09, 125.10, 143.00, 129.68% more increases than feedstock. optimum generation achieved when 4% concentration utilized 20 min. shows higher shorter retention suitable method can improve investigated industrial applications its use other lignocellulose feedstocks, especially energy grasses.

Language: Английский

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The Catalytic Valorization of Lignin from Biomass for the Production of Liquid Fuels

Energies, Journal Year: 2025, Volume and Issue: 18(6), P. 1478 - 1478

Published: March 17, 2025

With the overuse of fossil fuels, people are looking for alternatives. This is an area where biofuels have received a lot attention. Studies also shown that large variety liquid fuels commercial interest can be obtained via lignin valorization. Lignin rich in aromatic ring structures and used as sustainable raw material to produce high-value energy. Therefore, progress preparation from by pyrolysis, hydro-processing, oxidation analyzed this review. Nevertheless, due three-dimension network structure lignin, there many barriers need surmounted before utilizing it, such its complex connection with cellulose hemicellulose, which makes separation difficult. In paper, different pretreatment methods summarized separating other two components. Finally, challenges future trends valorization outlined. It clear construction efficient catalytic systems will focus research field.

Language: Английский

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Biotechnological approaches in utilizing agro-waste for biofuel production: An extensive review on techniques and challenges

Bioresource Technology Reports, Journal Year: 2023, Volume and Issue: 24, P. 101662 - 101662

Published: Oct. 18, 2023

Language: Английский

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Enhanced Sugar and Bioethanol Production from Broom Grass via NaOH-Autoclave Pretreatment

Polymers, Journal Year: 2025, Volume and Issue: 17(3), P. 266 - 266

Published: Jan. 21, 2025

The effective utilization of nonfood biomass for bioethanol production represents a promising strategy sustainable energy development. Moreover, limited research has been conducted on broom grass (Thysanolaena latifolia) as potential feedstock production, particularly regarding the effects NaOH autoclave pretreatment its enzymatic digestibility and fermentability. This study optimized sodium hydroxide (NaOH) combined with autoclaving to enhance biomass. concentration (1–4%) temperature (110–130 °C) composition, structural features, hydrolysis were systematically evaluated. Pretreatment 2% at 120 °C emerged optimal, achieving 74.7% lignin removal 93.2% glucan recovery, thereby significantly improving efficiency (88.0%) glucose recovery (33.3%). Scanning electron microscopy (SEM) X-ray diffraction (XRD) analyses revealed that these improvements attributed increased surface porosity selective amorphous components while maintaining cellulose crystallinity. pretreated hydrolysate exhibited excellent production. Fermentation using Saccharomyces cerevisiae TISTR 5339 achieved an 86.4% ethanol conversion rate, yielding 147 g per 1000 representing 2.6-fold increase compared untreated feedstock. These findings demonstrate in enhancing from biomass, aiding advancement cost-effective lignocellulosic biorefinery processes. presents opportunity valorize this multifaceted plant expand beyond traditional uses.

Language: Английский

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Effect of two delignification strategies of biomass on the acquirement and performance of hemicelluloses applied as cationic natural coagulant in the treatment of dairy effluent

Waste and Biomass Valorization, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 7, 2025

Language: Английский

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High productivity ethanol from high-solid fermentation of mixed organic solvent pretreated poplar by feeding solid with ∼50% water content

Energy, Journal Year: 2025, Volume and Issue: unknown, P. 134906 - 134906

Published: Feb. 1, 2025

Language: Английский

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Enhancing biomass conservation and enzymatic hydrolysis of sweet sorghum bagasse by combining pretreatment with ensiling and NaOH

Frontiers in Microbiology, Journal Year: 2024, Volume and Issue: 15

Published: March 15, 2024

Lignocellulosic pretreatment is an important stage in biomass utilization, which usually requires high input. In this study, a low-cost method using combined ensiling and NaOH was developed for lignocellulosic pretreatment. Sweet sorghum bagasse (SSB) ensiled 21 days then treated with diluted (0%, 1%, 2%) fermentation. The results showed that the application of Lactobacillus plantarum (L) reduced fermentation losses silages, mainly low water-soluble carbohydrate (WSC) ammonia nitrogen loss. Meanwhile, enzyme (LE) promoted degradation, as evidenced by neutral detergent fiber (NDF), acid (ADF), lignin (ADL), hemicellulosic (HC) contents. dominant bacterial genera were Lactobacillus, uncultured_bacterium_f_Enterobacteriaceae , Pantoea after silage, corresponded to higher lactic acetic contents lower pH. reducing sugar yields SSB increased silage further enhanced 2% application, yield microstructure damage, especially L-2% group LE-2% group, 87.99 94.45%, respectively, compared those no additive control (CK)-0 group. Therefore, study provides effective enhance conservation.

Language: Английский

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Physicochemical Pretreatment of Vietnamosasa pusilla for Bioethanol and Xylitol Production

Polymers, Journal Year: 2023, Volume and Issue: 15(19), P. 3990 - 3990

Published: Oct. 4, 2023

The consumption of fossil fuels has resulted in severe environmental consequences, including greenhouse gas emissions and climate change. Therefore, transitioning to alternative energy sources, such as cellulosic ethanol, is a promising strategy for reducing impacts promoting sustainable low-carbon energy. Vietnamosasa pusilla, an invasive weed, been recognized high potential feedstock sugar-based biorefineries due its total carbohydrate content, glucan (48.1 ± 0.3%) xylan (19.2 0.4%). This study aimed examine the impact NaOH pretreatment-assisted autoclaving on V. pusilla feedstock. enzymatic hydrolysate was used substrate bioethanol xylitol synthesis. After treating with varying concentrations at different temperatures, glucose xylose recovery yields were substantially higher than those untreated material. generated by hydrolysis fermented into using Saccharomyces cerevisiae TISTR 5339. liquid byproduct ethanol production utilized Candida tropicalis 5171 generate xylitol. results this indicate that six- five-carbon sugars biomass have great two value-added products (bioethanol xylitol).

Language: Английский

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Investigation of the alkaline hydrogen peroxide pretreatment: From cellulose saccharification to lignin isolation

Industrial Crops and Products, Journal Year: 2024, Volume and Issue: 214, P. 118533 - 118533

Published: April 18, 2024

Language: Английский

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Extraction of Lignin and Modifications

Published: Jan. 1, 2024

Language: Английский

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