title: Properties of ultrasound extracted bicomponent lignocellulose thin films.
abstract: Agricultural and forest residues obtained after harvesting are promising renewable sources, suitable as a source of pulp for cellulose nanocrystal manufacturing. Cavitation-assisted softening of the lignin-carbohydrate matrix offers sample opportunity for cellulose fibril liberation and degradation of amorphous cellulose. The present work addresses cavitation assisted cellulose fibril and crystal liberation and film forming properties of the supernatant phase of treated agricultural and forest residues. The effectiveness of this method has been evaluated according to crystallinity indices and hydrogen bond energies, as measured by FT-IR analysis. It has been observed that the use of cavitation increased the crystallinity and caused partial removal and degradation of the lignin matrix. Overall, it appears that considerable improvement of crystallinity can be obtained from agricultural and forest residues through the use of cavitation.
authors.affiliation: Laboratory of Forest Utilisation, Faculty of Forestry and Natural Environment, Aristotle University, Thessaloniki 54124, Greece; Forest Research Institute, National Agriculture Research Foundation, Thessaloniki, Greece.
authors.forename: Dimitrios
authors.initials: D
authors.lastname: Koutsianitis
authors.affiliation: Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University, Thessaloniki 54124, Greece.
authors.forename: Constantina
authors.initials: C
authors.lastname: Mitani
authors.affiliation: Faculty of Forestry and Wood Technology, Mendel University in Brno, 613 00 Brno, Czech Republic.
authors.forename: Kyriaki
authors.initials: K
authors.lastname: Giagli
authors.affiliation: Forest Research Institute, National Agriculture Research Foundation, Thessaloniki, Greece; University of West Hungary, Institute of Wood Based Products and Technologies, 9400 Sopron, Hungary.
authors.forename: Dimitrios
authors.initials: D
authors.lastname: Tsalagkas
authors.affiliation: University of West Hungary, Institute of Wood Based Products and Technologies, 9400 Sopron, Hungary.
authors.forename: Katalin
authors.initials: K
authors.lastname: Halász
authors.affiliation: Celltech-Paper Ltd, 9423 Agfalva, Hungary.
authors.forename: Ottó
authors.initials: O
authors.lastname: Kolonics
authors.affiliation: Forest Research Institute, National Agriculture Research Foundation, Thessaloniki, Greece.
authors.forename: Christos
authors.initials: C
authors.lastname: Gallis
authors.affiliation: University of West Hungary, Institute of Wood Based Products and Technologies, 9400 Sopron, Hungary; Celltech-Paper Ltd, 9423 Agfalva, Hungary. Electronic address: levente.csoka@skk.nyme.hu.
authors.forename: Levente
authors.initials: L
authors.lastname: Csóka
mesh_terms: D002236:Carbohydrate Conformation; D002626:Chemistry, Pharmaceutical; D055772:Green Chemistry Technology; D008031:Lignin / Q000737:chemistry* / Q000302:isolation & purification*; D008958:Models, Molecular; D014465:Ultrasonics; D014867:Water / Q000737:chemistry
chemical_list: D014867:Water; C036909:lignocellulose; D008031:Lignin
keywords: Crystallinity; Forest biomass; Lignocellulose; Thin-film; Ultrasonication