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SUSSOL—Using Artificial Intelligence for Greener Solvent Selection and Substitution
Article

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

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Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, Via Giuria 9, 10125 Turin, Italy
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Dipartimento di Scienze e Metodi dell’Ingegneria, Università degli Studi di Modena e Reggio Emilia, Via Amendola 2, 42122 Reggio Emilia, Italy
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Dipartimento di Ingegneria “Enzo Ferrari”, Università degli Studi di Modena e Reggio Emilia, Via Vivarelli 10, 41125 Modena, Italy
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JSC Biocentras, LT-14117 Vilnius, Lithuania
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Dipartimento di Chimica, University of Turin, Via P. Giuria 7, 10125 Turin, Italy
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Authors to whom correspondence should be addressed.
Academic Editors: James Sherwood, Thomas J. Farmer and James H. Clark
Molecules 2021, 26(4), 798; https://doi.org/10.3390/molecules26040798
Received: 31 December 2020 / Revised: 22 January 2021 / Accepted: 1 February 2021 / Published: 4 February 2021
(This article belongs to the Special Issue Bio-Based and Safer Solvents)
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. View Full-Text
Keywords: NaDES; microwave-assisted delignification; dielectric properties; lignin-derived phenolics; enzymatic hydrolysis NaDES; microwave-assisted delignification; dielectric properties; lignin-derived phenolics; enzymatic hydrolysis
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MDPI and ACS Style

Grillo, G.; Calcio Gaudino, E.; Rosa, R.; Leonelli, C.; Timonina, A.; Grygiškis, S.; Tabasso, S.; Cravotto, G. Green Deep Eutectic Solvents for Microwave-Assisted Biomass Delignification and Valorisation. Molecules 2021, 26, 798. https://doi.org/10.3390/molecules26040798

AMA Style

Grillo G, Calcio Gaudino E, Rosa R, Leonelli C, Timonina A, Grygiškis S, Tabasso S, Cravotto G. Green Deep Eutectic Solvents for Microwave-Assisted Biomass Delignification and Valorisation. Molecules. 2021; 26(4):798. https://doi.org/10.3390/molecules26040798

Chicago/Turabian Style

Grillo, Giorgio, Emanuela Calcio Gaudino, Roberto Rosa, Cristina Leonelli, Ana Timonina, Saulius Grygiškis, Silvia Tabasso, and Giancarlo Cravotto. 2021. "Green Deep Eutectic Solvents for Microwave-Assisted Biomass Delignification and Valorisation" Molecules 26, no. 4: 798. https://doi.org/10.3390/molecules26040798

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