Progress on the pre-treatment of lignocellulosic biomass employing ionic liquids

Halder, Pobitra; Kundu, Sazal; Patel, Savankumar; Setiawan, Adi; Atkin, Rob; Parthasarthy, Rajarathinam; Paz‐Ferreiro, Jorge; Surapaneni, Aravind; Shah, Kalpit

doi:10.1016/j.rser.2019.01.052

Cited by 182 publications

(84 citation statements)

References 255 publications

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“…In this way, ionic liquids are regarded as a relevant class of green solvents that are capable of replacing several hazardous volatile organic solvents. A variety of ionic liquids (ionic compounds that are in liquid state at 100 • C and ambient pressure) has been tested so far for biomass fractionation (Halder et al, 2019). The physicochemical properties of these specialty solvents include negligible vapor pressure and high thermal and chemical stabilities, as well as a high capacity to solubilize organic and inorganic, as well as polar and non-polar substances, depending on its chemical composition (Boruń, 2019).…”

Section: Pretreatmentmentioning

confidence: 99%

Supercritical Fluids: A Promising Technique for Biomass Pretreatment and Fractionation

Escobar

Silva

Pirich

et al. 2020

Front. Bioeng. Biotechnol.

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Lignocellulosic biomasses are primarily composed of cellulose, hemicelluloses and lignin and these biopolymers are bonded together in a heterogeneous matrix that is highly recalcitrant to chemical or biological conversion processes. Thus, an efficient pretreatment technique must be selected and applied to this type of biomass in order to facilitate its utilization in biorefineries. Classical pretreatment methods tend to operate under severe conditions, leading to sugar losses by dehydration and to the release of inhibitory compounds such as furfural (2-furaldehyde), 5-hydroxy-2-methylfurfural (5-HMF), and organic acids. By contrast, supercritical fluids can pretreat lignocellulosic materials under relatively mild pretreatment conditions, resulting in high sugar yields, low production of fermentation inhibitors and high susceptibilities to enzymatic hydrolysis while reducing the consumption of chemicals, including solvents, reagents, and catalysts. This work presents a review of biomass pretreatment technologies, aiming to deliver a state-of-art compilation of methods and results with emphasis on supercritical processes.

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Section: Pretreatmentmentioning

confidence: 99%

Supercritical Fluids: A Promising Technique for Biomass Pretreatment and Fractionation

Escobar

Silva

Pirich

et al. 2020

Front. Bioeng. Biotechnol.

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“…[59][60][61][62]. Their application as reaction media have been proposed for analytical chemistry [63], energy chemistry [64,65], biomass conversion [66][67][68], materials preparation [69][70][71], microextraction [72][73][74], electrochemistry [75][76][77][78], and organic chemistry [79]. Interestingly, their physico-chemical, thermal, and solvent properties are based on the nature of the ions that compose them, and more particularly, on the interactions between these ions.…”

Section: Drug Synthesis In Ionic Liquidsmentioning

confidence: 99%

Ultrasound for Drug Synthesis: A Green Approach

2020

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This last century, the development of new medicinal molecules represents a real breakthrough in terms of humans and animal life expectancy and quality of life. However, this success is tainted by negative environmental consequences. Indeed, the synthesis of drug candidates requires the use of many chemicals, solvents, and processes that are very hazardous, toxic, energy consuming, expensive, and generates a large amount of waste. Many large pharmaceutical companies have thus moved to using green chemistry practices for drug discovery, development, and manufacturing. One of them is the use of energy-efficient activation techniques, such as ultrasound. This review summarizes the latest most representative works published on the use of ultrasound for sustainable bioactive molecules synthesis.

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“…ILs are salts with low meting points and favorable solvent properties such as non-ammability, low or negligible vapor pressure, chemical and thermal stability. 12 The main effects of IL pretreatment on ATB are the partial removal of hemicellulose/ lignin and crystalline cellulose without the generation of inhibitors or cellulose degradation, which entails an efficient saccharication and biofuel generation. 13 To the best of our knowledge, all of the reports regarding IL pretreatment on ATB are imidazolium-based ILs, such as 1ethyl-3-methylimidazolium acetate [Emim][OAc], [14][15][16][17] 19 However, imidazolium-based ILs are not compatible and exhibit toxicity to enzymes and microbes, making necessary to implement an extensive water wash process to remove the residual IL aer pretreatment.…”

Section: Introductionmentioning

confidence: 99%

Bioderived ionic liquid-based pretreatment enhances methane production from Agave tequilana bagasse

et al. 2020

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Progress on the pre-treatment of lignocellulosic biomass employing ionic liquids

Cited by 182 publications

References 255 publications

Supercritical Fluids: A Promising Technique for Biomass Pretreatment and Fractionation

Supercritical Fluids: A Promising Technique for Biomass Pretreatment and Fractionation

Ultrasound for Drug Synthesis: A Green Approach

Bioderived ionic liquid-based pretreatment enhances methane production from Agave tequilana bagasse

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