title: Characterization of arabinogalactan-rich mucilage from Cereus triangularis cladodes.
abstract: Cereus triangularis (Cactaceae) is a cactus used in food decoction as a traditional medicine in the North region of Madagascar to reduce stomach ache and intestinal diseases. Hydrocolloids were sequentially extracted from its cladodes with a yield of 24% (240 mg/g based on dried cladodes powder). Structural analyses has revealed that this polysaccharide with a molecular mass of 8430,000g/mol was mainly composed of a galactan backbone of a (1 → 4) linked β-d-Galp residues probably substituted at position 3 by L-arabinofuranosyl residues. In vitro antioxidant activity of this arabinogalactan-rich fraction was detected and quantified by radical DPPH scavenging, hydroxyl radical scavenging, radical anion superoxide scavenging and reducing power method.
authors.affiliation: Faculté des Sciences de l'Université d'Antsiranana, BP O 201, Antsiranana, Madagascar.
authors.forename: B
authors.initials: B
authors.lastname: Petera
authors.affiliation: Université Clermont Auvergne, Université Blaise Pascal, Institut Pascal, BP 10448, F-63000 Clermont-Ferrand, France; CNRS, UMR 6602, IP, F-63171 Aubière, France. Electronic address: Cedric.delattre@univ-bpclermont.fr.
authors.forename: C
authors.initials: C
authors.lastname: Delattre
authors.affiliation: Université Clermont Auvergne, Université Blaise Pascal, Institut Pascal, BP 10448, F-63000 Clermont-Ferrand, France; CNRS, UMR 6602, IP, F-63171 Aubière, France.
authors.forename: G
authors.initials: G
authors.lastname: Pierre
authors.affiliation: Université de Picardie Jules Verne, EA 3900-BioPI Biologie des Plantes et de l'Innovation, IUT d'Amiens (GB), Avenue des Facultés, Le Bailly, 80025 Amiens Cedex, France.
authors.forename: A
authors.initials: A
authors.lastname: Wadouachi
authors.affiliation: Laboratoire des Glucides FRE CNRS 3517-Institut de Chimie de Picardie FR 3085, Université de Picardie Jules Verne, 33 rue Saint-Leu, F-80039 Amiens, France.
authors.forename: R
authors.initials: R
authors.lastname: Elboutachfaiti
authors.affiliation: INRA, UR370 QuaPA, MASS Group, 63122 Saint-Genès-Champanelle, France.
authors.forename: E
authors.initials: E
authors.lastname: Engel
authors.affiliation: Université Clermont Auvergne, Université Blaise Pascal, Institut Pascal, BP 10448, F-63000 Clermont-Ferrand, France; CNRS, UMR 6602, IP, F-63171 Aubière, France.
authors.forename: L
authors.initials: L
authors.lastname: Poughon
authors.affiliation: Université Clermont Auvergne, Université Blaise Pascal, Institut Pascal, BP 10448, F-63000 Clermont-Ferrand, France; CNRS, UMR 6602, IP, F-63171 Aubière, France.
authors.forename: P
authors.initials: P
authors.lastname: Michaud
authors.affiliation: Faculté des Sciences de l'Université d'Antsiranana, BP O 201, Antsiranana, Madagascar.
authors.forename: T A
authors.initials: TA
authors.lastname: Fenoradosoa
mesh_terms: D000975:Antioxidants / Q000737:chemistry* / Q000302:isolation & purification; D029421:Cactaceae / Q000737:chemistry*; D005685:Galactans / Q000737:chemistry* / Q000302:isolation & purification; D010936:Plant Extracts / Q000737:chemistry*
chemical_list: D000975:Antioxidants; D005685:Galactans; D010936:Plant Extracts; C005653:arabinogalactan
keywords: Antioxidant; Arabinogalactan, Cactaceae; Madagascar; Mucilage