In-situ extraction of depolymerization products by membrane filtration against lignin condensation
| Autor: | Stéphane Dumarçay, Virginie Steinmetz, Maud Villain-Gambier, Isabelle Ziegler, Dominique Trébouet, Armand Klem |
|---|---|
| Přispěvatelé: | Département Sciences Analytiques et Interactions Ioniques et Biomoléculaires (DSA-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Etude et de Recherche sur le Matériau Bois (LERMAB), Université de Lorraine (UL), Norske Skog Golbey SAS, Société |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Environmental Engineering Bioengineering macromolecular substances membrane filtration 010501 environmental sciences Membrane bioreactor Lignin 01 natural sciences complex mixtures Catalysis Polymerization laccase chemistry.chemical_compound bioreactor 010608 biotechnology lignin depolymerization Bioreactor [CHIM]Chemical Sciences Waste Management and Disposal 0105 earth and related environmental sciences Laccase Renewable Energy Sustainability and the Environment Depolymerization Chemistry Extraction (chemistry) fungi technology industry and agriculture food and beverages General Medicine Diafiltration condensation Membrane Chemical engineering Oxidation-Reduction |
| Zdroj: | Bioresource Technology Bioresource Technology, Elsevier, 2020, 311, pp.123530. ⟨10.1016/j.biortech.2020.123530⟩ |
| ISSN: | 0960-8524 |
| DOI: | 10.1016/j.biortech.2020.123530⟩ |
| Popis: | International audience; Catalytic depolymerization of lignin is a challenging process due to competitive repolymerization reactions. In this paper, the oxidative depolymerization of lignin was catalyzed by a commercial laccase both in a batch experiment and in a membrane bioreactor using the same catalytic conditions. The membrane bioreactor was previously optimized to reach high permeation flux (25 L.h−1.m−2) during lignin diafiltration. While the lignin was exclusively condensed in the batch experiment leading to high molecular weight macromolecules (from 9 to 16 kDa), its depolymerization was effective in the bioreactor producing fragments of less than 1 kDa thanks to the in-situ extraction of the reaction products. This paper demonstrates that the reactor configuration is playing an essential role in triggering or preventing lignin condensation. It also reports the first proof-of-concept demonstrating that in-situ membrane extraction of the reactive fragments of lignin from the bulk medium can be useful against detrimental repolymerization reactions. |
| Databáze: | OpenAIRE |
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