Investigation of a robust pretreatment technique based on ultrasound-assisted, cost-effective ionic liquid for enhancing saccharification and bioethanol production from wheat straw

Ziaei-Rad, Zhila; Pazouki, Mohammad; Fooladi, Jamshid; Azin, Mehrdad; Gummadi, Sathyanarayana N.; Allahverdi, Abdollah

doi:10.1038/s41598-022-27258-9

Cited by 17 publications

(4 citation statements)

References 65 publications

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“…Therefore, cellulose could serve as an alternative feedstock that can decrease our dependence on fossil fuels and help mitigate CO 2 -driven climate change. For example, ionic-liquid-based treatments for bioethanol using ultrasonication with ionic liquid ([TEA][HSO 4 ]) from wheat straw [ 7 ].…”

Section: Methods Of Cellulosic Biomass Conversionmentioning

confidence: 99%

Light-Driven Depolymerization of Cellulosic Biomass into Hydrocarbons

Negi,

Kesari

2023

Polymers

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Cellulose and hemicellulose are the main constituents of lignocellulosic biomass. Chemical derivatization of lignocellulosic biomass leads to a range of C5 and C6 organic compounds. These C5 and C6 compounds are valuable precursors (or fine chemicals) for developing sustainable chemical processes. Therefore, depolymerization of cellulose and hemicellulose is essential, leading to the development of various materials that have applications in biomaterial industries. However, most depolymerized processes for cellulose have limited success because of its structural quality: crystallinity, high hydrogen-bond networking, and mild solubility in organic and water. As a result, various chemical treatments, acidic (mineral or solid acids) and photocatalysis, have developed. One of the significant shortcomings of acidic treatment is that the requirement for high temperatures increases the commercial end cost (energy) and hampers product selectivity. For example, a catalyst with prolonged exposure to high temperatures damages the catalyst surface over time; therefore, it cannot be used for iterative cycles. Photocatalysts provide ample application to overcome such flaws as they do not require high temperatures to perform efficient catalysis. Various photocatalysts have shown efficient cellulosic biomass conversion into its C6 and C5 hydrocarbons and the production of hydrogen (as a green energy component). For example, TiO2-based photocatalysts are the most studied for biomass valorization. Herein, we discussed the feasibility of a photocatalyst with application to cellulosic biomass hydrolysis.

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Section: Methods Of Cellulosic Biomass Conversionmentioning

confidence: 99%

Light-Driven Depolymerization of Cellulosic Biomass into Hydrocarbons

Negi,

Kesari

2023

Polymers

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“…Ziaei-Rad et al [16] showed that using the proton ionic liquid TEA[HSO 4 ] to dissolve wheat straw for 3 h at 130 • C resulted in 80% delignification and 64.4% lignin removal. Chambon et al [23] used the same ionic liquid to dissolve four types of raw material (wheat straw, sugarcane bagasse, rice hulls and rice straw) and achieved 82% lignin removal efficiency.…”

Section: Effect Of Pil Pretreatment On Composition Analysismentioning

confidence: 99%

“…Studies show that dissolving biomass in PIL loosens the bonds between xylan, cellulose, and lignin, allowing its extraction with this solvent [14,15]. This process could be widely used in the production of bioethanol from lignocellulosic feedstocks and provide an alternative to more expensive imidazolium ionic liquids [16].…”

Section: Introductionmentioning

confidence: 99%

Application of Proton Ionic Liquid in the Process of Obtaining Bioethanol from Hemp Stalks

Smuga-Kogut,

Walendzik,

Lewicka-Rataj

et al. 2024

Energies

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In this work, hemp (Cannabis sativa L.) stalks were pretreated with pyrrolidinium acetate [Pyrr][AC] to increase the availability of cellulose for cellulolytic enzymes and thus improve the production of 2G ethanol from reducing sugars. The process was carried out under different temperature and time conditions: The control sample was raw material and deionized water, and the second sample was kept at 21 °C for 24 h. The third sample was kept at 90 °C for 30 min, and the fourth sample was kept at the same temperature for 24 h. For each pretreatment, the extraction of lignin and hemicellulose was determined, as well as the change in biomass composition before and after pretreatment. The stalks of hemp seed contained 41.54% cellulose, 18.08% lignin and 28. 87% hemicellulose. [Pyrr][AC] used to dissolve seed hemp at 90 °C for 24 h was most effective in the extraction of this biopolymer, extracting 3.1% content. After enzymatic hydrolysis, the highest content of reducing sugars was found for samples of hemp stalks that were first pretreated with proton ionic liquid (PIL) and stirred at 90 °C for 24 h. On the other hand, the highest ethanol content (5.6 g/L) after fermentation and yeast viability (56.7%) after 72 h were obtained in samples pretreated at 90 °C and for 24 h.

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“…SAP assisted by 1% surfactant concentration showed improved results. In the study by Ziaei-Rad et al (2023), a robust pretreatment technique based on enzymatic hydrolysis was investigated, evaluating the saccharification yield, including the amount of glucose and xylose produced.…”

Section: Introductionmentioning

confidence: 99%

Robust pretreatment in combination with ultrasound-assisted surfactant to improve the enzymatic hydrolysis of Eucalyptus pellita

Zhand,

Yang,

Kang

et al. 2024

BioRes

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Alkaline pretreatment stands out as a valuable strategy in biomass conversion to overcome the recalcitrance of biomass by removing lignin and a part of hemicellulose. This enhances enzyme accessibility and promotes saccharification. However, increasing the alkaline concentration to enhance the delignification and improve glucose yield together presents inherent limitations. In this experiment the amount of delignification and glucose yield resulting from surfactant associated with sonication during mild alkaline pretreatment of Eucalyptus pellita was investigated. Also, the effect of various factors (sonication temperature and surfactant immersion time) on delignification and glucose yield were examined. The results demonstrated that surfactant associated with sonication pretreatment could overcome the limitation of alkaline pretreatment and could increase the amount of delignification alongside enzymatic hydrolysis glucose yield of Eucalyptus pellita wood by around 90%. The findings indicated that surfactant-assisted with sonication during mild alkaline pretreatment of Eucalyptus pellita (i.e., hardwood) could be recommended as a supporting pretreatment method for the production of monomeric sugars.

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Investigation of a robust pretreatment technique based on ultrasound-assisted, cost-effective ionic liquid for enhancing saccharification and bioethanol production from wheat straw

Cited by 17 publications

References 65 publications

Light-Driven Depolymerization of Cellulosic Biomass into Hydrocarbons

Light-Driven Depolymerization of Cellulosic Biomass into Hydrocarbons

Application of Proton Ionic Liquid in the Process of Obtaining Bioethanol from Hemp Stalks

Robust pretreatment in combination with ultrasound-assisted surfactant to improve the enzymatic hydrolysis of Eucalyptus pellita

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