title: Physico-chemical properties and thermal stability of microcrystalline cellulose isolated from Alfa fibres.
abstract: In this study, microcrystalline cellulose (Alfa-MCC) was extracted from Alfa fibres using acid hydrolysis method. The molecular weight of the cellulose samples was determined by gel permeation chromatography. The crystallinities were studied by means of X-ray diffraction and solid state cross polarization magic angle spinning (13)C nuclear magnetic resonance spectroscopy, revealing that Alfa-MCC was more crystalline than the native cellulose isolated from Alfa fibres. The morphology of the celluloses was investigated using scanning electron microscopy, showing a compact structure and a rough surface. Furthermore, a good thermal stability was shown for Alfa-MCC. Based on these analyses, Alfa-MCC showed tremendous potential use as composites reinforcing agent, foods stabilizer and pharmaceutical additive.
authors.affiliation: UER Chimie appliquée, Ecole Militaire Polytechnique, BP 17, Alger, Algeria. Electronic address: djalaltrache@gmail.com.
authors.forename: Djalal
authors.initials: D
authors.lastname: Trache
authors.affiliation: LERMAB, Faculté des Sciences et Technologies, Université de Lorraine, Vandœuvre-lès-Nancy, France.
authors.forename: André
authors.initials: A
authors.lastname: Donnot
authors.affiliation: UER Chimie appliquée, Ecole Militaire Polytechnique, BP 17, Alger, Algeria.
authors.forename: Kamel
authors.initials: K
authors.lastname: Khimeche
authors.affiliation: LERMAB, Faculté des Sciences et Technologies, Université de Lorraine, Vandœuvre-lès-Nancy, France.
authors.forename: Riad
authors.initials: R
authors.lastname: Benelmir
authors.affiliation: LERMAB, Faculté des Sciences et Technologies, Université de Lorraine, Vandœuvre-lès-Nancy, France.
authors.forename: Nicolas
authors.initials: N
authors.lastname: Brosse
mesh_terms: D002482:Cellulose / Q000737:chemistry*; D006358:Hot Temperature; D006868:Hydrolysis; D010592:Pharmaceutic Aids / Q000737:chemistry*; D006109:Poaceae / Q000737:chemistry*
chemical_list: D010592:Pharmaceutic Aids; D002482:Cellulose; C109691:microcrystalline cellulose
keywords: Alfa fibres; Characterization; Chemical treatment; Microcrystalline cellulose; Thermal properties