Gustavo Kildegaard, Gabriel Salierno, Cataldo De Blasio, Miryan Cassanello, Miguel Galvagno

Research output: Chapter in Book/Conference proceedingConference contributionScientificpeer-review


The effect of an acid oxidative digestion on delignification of Municipal Solid Waste (MSW) was investigated. The pre-treatment process is a key stage to disrupt the recalcitrant structure of glucose containing polymers from edible and non-edible components usually present in MSW [1]. Classical dilute acid pre-treatments require high temperatures and the residual lignin from the MSW lignocellulosic portion still hinders the glucose productivity [2]. Delignification of MSW facilitates the generation of fermentable sugars usable for bioethanol production (i.e., saccharification). For this purpose, a low temperature acid-oxidative delignification is proposed. This work reports the amount of glucose evolving from MSW by enzymatic saccharification of a representative sample pre-treated with a mixture of equal volumes of hydrogen peroxide (30%w/w) and glacial acetic acid (PoxAc) at temperatures between 70 and 90 °C, during 30 to 90 minutes. It is worth mentioning that the process is clean since non-toxic renewable solvent is used, and the oxidant decomposes into harmless products.
1. Vu, H.P.; Nguyen, L.N.; Vu, M.T.; Johir, M.A.H.; McLaughlan, R.; Nghiem, L.D. A comprehensive review on the framework to valorise lignocellulosic biomass as biorefinery feedstocks. Science of The Total Environment 2020, 743, 140630, doi:10.1016/j.scitotenv.2020.140630.
2. Toor, M.; Kumar, S.S.; Malyan, S.K.; Bishnoi, N.R.; Mathimani, T.; Rajendran, K.; Pugazhendhi, A. An overview on bioethanol production from lignocellulosic feedstocks. Chemosphere 2020, 242, 125080, doi:10.1016/j.chemosphere.2019.125080.
3. Wi, S.G.; Cho, E.J.; Lee, D.-S.; Lee, S.J.; Lee, Y.J.; Bae, H.-J. Lignocellulose conversion for biofuel: a new pretreatment greatly improves downstream biocatalytic hydrolysis of various lignocellulosic materials. Biotechnol Biofuels 2015, 8, 228, doi:10.1186/s13068-015-0419-4.
Original languageEnglish
Title of host publication8th International Conference on Engineering for Waste and Biomass Valorisation
Publication statusPublished - 2021
MoE publication typeA4 Article in a conference publication


  • Second generation bioethanol
  • Biomass pretreatment
  • Municipal solid waste


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