Impact of Nonthermal Atmospheric Plasma on the Structure of Cellulose: Access to Soluble Branched Glucans |
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| Authors: | Joakim Delaux Prof. Carmen Ortiz Mellet Christine Canaff Dr. Elodie Fourré Dr. Cédric Gaillard Dr. Abdellatif Barakat Prof. José M. García Fernández Dr. Jean‐Michel Tatibouët Dr. François Jérôme |
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| Affiliation: | 1. Institut de Chimie des Milieux et Matériaux de Poitiers, CNRS/Université de Poitiers, ENSIP, Poitiers Cedex 9, France;2. UMR IATE, CIRAD, Montpellier SupAgro, INRA, Université de Montpelier, Montpellier, France;3. Dpto. Química Orgánica, Faculty of Chemistry, University of Sevilla, Sevilla, Spain;4. INRA, UR 1268 Biopolymers Interaction Assemblies (BIA), Centre Angers-Nantes, Nantes, France;5. Instituto de Investigaciones Químicas (IIQ), CSIC - University of Sevilla, Sevilla, Spain |
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| Abstract: | We have investigated the effect of non‐thermal atmospheric plasma (NTAP) on the structure of microcrystalline cellulose. In particular, by means of different characterization methods, we demonstrate that NTAP promotes the partial cleavage of the β‐1,4 glycosidic bond of cellulose leading to the release of short‐chain cellodextrins that are reassembled in situ, preferentially at the C6 position, to form branched glucans with either a glucosyl or anhydroglucosyl terminal residue. The ramification of cellulosic chain induced by NTAP yields branched glucans that are soluble in DMSO or in water, thus opening a straightforward access to processable glucans from cellulose. Importantly, the absence of solvent and catalyst considerably facilitates downstream processing as compared to (bio)catalytic processes which typically occur in diluted conditions. |
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| Keywords: | biomass cellulose glucans non-thermal atmospheric plasma polysaccharides |
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