Impact of Nonthermal Atmospheric Plasma on the Structure of Cellulose: Access to Soluble Branched Glucans.
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.
Institut de Chimie des Milieux et Matériaux de Poitiers, CNRS/Université de Poitiers, ENSIP, 1 rue Marcel Doré, Bat 1, TSA 41105, 86073, Poitiers Cedex 9, France.|UMR IATE, CIRAD, Montpellier SupAgro, INRA, Université de Montpelier, 34060, Montpellier, France.
Joakim
J
Delaux
Dpto. Química Orgánica, Faculty of Chemistry, University of Sevilla, c/Profesor García González 1, 41012, Sevilla, Spain.
Carmen
C
Ortiz Mellet
Institut de Chimie des Milieux et Matériaux de Poitiers, CNRS/Université de Poitiers, ENSIP, 1 rue Marcel Doré, Bat 1, TSA 41105, 86073, Poitiers Cedex 9, France.
Christine
C
Canaff
Institut de Chimie des Milieux et Matériaux de Poitiers, CNRS/Université de Poitiers, ENSIP, 1 rue Marcel Doré, Bat 1, TSA 41105, 86073, Poitiers Cedex 9, France.
Elodie
E
Fourré
INRA, UR 1268 Biopolymers Interaction Assemblies (BIA), Centre Angers-Nantes, Rue de la Géraudière, 44000, Nantes, France.
Cédric
C
Gaillard
UMR IATE, CIRAD, Montpellier SupAgro, INRA, Université de Montpelier, 34060, Montpellier, France.
Abdellatif
A
Barakat
Instituto de Investigaciones Químicas (IIQ), CSIC - University of Sevilla, Avda. Americo Vespucio 49, 41092, Sevilla, Spain.
José M
JM
García Fernández
Institut de Chimie des Milieux et Matériaux de Poitiers, CNRS/Université de Poitiers, ENSIP, 1 rue Marcel Doré, Bat 1, TSA 41105, 86073, Poitiers Cedex 9, France.
Jean-Michel
JM
Tatibouët
Institut de Chimie des Milieux et Matériaux de Poitiers, CNRS/Université de Poitiers, ENSIP, 1 rue Marcel Doré, Bat 1, TSA 41105, 86073, Poitiers Cedex 9, France. francois.jerome@univ-poitiers.fr.
François
F
Jérôme
D002482:Cellulose / Q000031:analogs & derivatives* / Q000737:chemistry*; D003912:Dextrins / Q000737:chemistry*; D005936:Glucans / Q000737:chemistry*; D058626:Plasma Gases / Q000737:chemistry*; D012995:Solubility
D003912:Dextrins; D005936:Glucans; D058626:Plasma Gases; D002482:Cellulose; C068994:cellodextrin; C109691:microcrystalline cellulose
biomass; cellulose; glucans; non-thermal atmospheric plasma; polysaccharides