Deep eutectic solvents (DES), have emerged as one of the most promising technologies for biomass fractionation [1,2] aiming at enhancing value and reduce the CO2 emissions to achieve an European low carbon bio-economy by 2050, namely in large scale sectors as the pulp and paper industry[3]. DES are a greener alternative to the typical solvents used in chemical processes due to their simplicity of preparation, unique physicochemical properties, are biodegradable and recyclable, and, they are often of natural origin [2]. However, an understanding of the mechanisms underlying the solubilisation of biomass components that would enable a rationale selection of DES and process conditions for specific applications is still needed [4]. In this communication, we will show the latest developments on the solubilisation of polysaccharide in several Natural Deep Eutectic Solvents (NADES) and their aqueous solutions, and the effect of NADES composition, concentration and temperature. The confirmation of DES potential will be further confirmed by some examples of their application in t integrated and sustainable strategies for biomass fractionation and valorisation.

Polysaccharides dissolution in deep eutectic solvents (DES) a promising approach for biomass refining

255th National Meeting (2018)

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