Rapid microwave-assisted biomass delignification and lignin depolymerization in deep eutectic solvents

Muley, Pranjali D.; Mobley, Justin K.; Tong, Xinjie; Novak, Brian; Stevens, Joseph C.; Moldovan, Dorel; Shi, Jian; Boldor, Dorin

doi:10.1016/j.enconman.2019.06.070

Cited by 129 publications

(45 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The combination of microwaves and acid-based DESs in delignification processes has been reported before. 49,50,58,82 Usually, a short irradiation time is combined with a rather high working temperature (>100 °C). It is worth noting that the same ChCl-oxalic acid dihydrate DES here used was proven to be effective in the delignification of poplar wood flour after a very short irradiation time (3 minutes) and at mild temperatures (80 °C), 58 thus in agreement with our findings.…”

Section: Morphological Characterization and Composition Analysis Of Lignocellulosic By-productsmentioning

confidence: 99%

“…47 The performance of DESs in biomass fractionation and separation can be tuned by modulating their composition, which allows for the high dissolution of biopolymers, 35 polyphenol isolation 48 and biomass delignification. [49][50][51] Thus, the combined use of DESs and MWs appears to be a promising strategy for the separation/recovery of lignin 49,50 and polyphenols [52][53][54][55][56][57][58] in relatively short processing times.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Combining acid-based deep eutectic solvents and microwave irradiation for improved chestnut shell waste valorization

et al. 2021

View full text Add to dashboard Cite

show abstract

Section: Morphological Characterization and Composition Analysis Of Lignocellulosic By-productsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Combining acid-based deep eutectic solvents and microwave irradiation for improved chestnut shell waste valorization

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The synergy between NaDES and MW heating could contribute very efficiently to the biomass delignification, owing to the interaction of MW irradiation with electrolytic solvents [ 46 ]. Therefore, to better understand this kind of interaction, we measured the dielectric properties of all of the NaDESs and LigDESs used in this work, since it is well known that MW heating is strictly related to the samples’ dielectric features [ 8 ].…”

Section: Resultsmentioning

confidence: 99%

Green Deep Eutectic Solvents for Microwave-Assisted Biomass Delignification and Valorisation

et al. 2021

View full text Add to dashboard Cite

Aiming to fulfil the sustainability criteria of future biorefineries, a novel biomass pretreatment combining natural deep eutectic solvents (NaDESs) and microwave (MW) technology was developed. Results showed that NaDESs have a high potential as green solvents for lignin fractionation/recovery and sugar release in the following enzymatic hydrolysis. A new class of lignin derived NaDESs (LigDESs) was also investigated, showing promising effects in wheat straw delignification. MW irradiation enabled a fast pretreatment under mild condition (120 °C, 30 min). To better understand the interaction of MW with these green solvents, the dielectric properties of NaDESs were investigated. Furthermore, a NaDES using the lignin recovered from biomass pretreatment as hydrogen bond donor was prepared, thus paving the way for a “closed-loop” biorefinery process.

show abstract

“…The optimum values for the parameters were reported as 2.5% biomass loading, 6 h time, and 100°C temperature. Muley et al [77] used microwave-assisted delignification for the treatment of pinewood sawdust. Three different DESs, namely, ChCl-oxalic acid (1:1), ChCllactic acid (1:1), and ChCl-formic acid (2:1), were used to test the effect of temperature (110, 130, and 150°C) and time (1, 5, 10, and 15 min) at 2450 MHz.…”

Section: Fractionation Of Agro-industrial Wastes With Deep Eutectic Solvents and Recovery Of Ligninmentioning

confidence: 99%

Use of Deep Eutectic Solvents in the Treatment of Agro-Industrial Lignocellulosic Wastes for Bioactive Compounds

Ünlü¹,

Takaç²

2021

Agroecosystems – Very Complex Environmental Systems

View full text Add to dashboard Cite

Lignocellulose is the most abundant component in nature since it refers to plant material. Beyond the enormous utilization of lignocellulose by human being, unignorable amount of waste is also formed simultaneously. Agro-industrial lignocellulosic wastes can cause environmental pollutions if not processed before discharged. An innovative approach for lowering the detrimental influences of lignocellulosic wastes is to consider them as a source of useful products rather than a waste to be decontaminated. Beyond the conventional techniques for evaluation of the wastes, new emerging techniques and the use of new solvents have drawn attention recently. Among new generation solvents, deep eutectic solvents (DESs) have been increasingly used in the treatment of lignocellulosics to produce value-added products such as biofuels, chemicals, and solvents and also used for the recovery of bioactive phenolic compounds. DESs are used extensively for fractionation of lignocellulosic wastes, often in combination with enzymatic hydrolysis of the biomass. On the other hand, extraction and recovery of bioactive compounds are also under research using DESs. This mini review summarizes the very recent literature reports on the use of DESs in treating agro-industrial wastes within the concept of valorization of biomass.

show abstract

Rapid microwave-assisted biomass delignification and lignin depolymerization in deep eutectic solvents

Cited by 129 publications

References 46 publications

Combining acid-based deep eutectic solvents and microwave irradiation for improved chestnut shell waste valorization

Combining acid-based deep eutectic solvents and microwave irradiation for improved chestnut shell waste valorization

Green Deep Eutectic Solvents for Microwave-Assisted Biomass Delignification and Valorisation

Use of Deep Eutectic Solvents in the Treatment of Agro-Industrial Lignocellulosic Wastes for Bioactive Compounds

Contact Info

Product

Resources

About