Rodríguez Martínez, Héctor2021-08-122021-08-122021Acta Innovations 2021, 38: 23-36. https://doi.org/10.32933/ActaInnovations.38.3http://hdl.handle.net/10347/26797The pretreatment is a key step in the processing of lignocellulosic biomass for its transformation into chemicals and materials of biorenewable origin. Ionic liquids, with their characteristic set of unique properties, have the potential to be the basis of novel pretreatment processes with higher effectiveness and improved sustainability as compared to the current state-of-the-art processes. In this opinion paper, the author provides a perspective on possible processing strategies for this pretreatment with ionic liquids, identifying different advantages as well as challenges to be overcomeeng© 2021 RIC Pro-Akademia – CC BYAtribución 4.0 Internacionalhttp://creativecommons.org/licenses/by/4.0/Ionic liquidBiomassLignocelluloseBiorefineryPretreatmentFractionationjournal article10.32933/ActaInnovations.38.32300-5599open access