title: Structural Characterization and Biological Activities of Polysaccharides from Olive Mill Wastewater.
abstract: Olive mill wastewater (OMWW), the main waste product of olive oil extraction process, was investigated as a source of polysaccharides. The yield of alcohol insoluble residue (AIR) was 20.5 % based on the dry matter of OMWW. Extraction with water gave water soluble (WSF) and insoluble (WIF) fractions from AIR with yields of 13.3 % (w/w) and 3.7 % (w/w) based on the dry matter, respectively. Chemical composition and monosaccharide analysis indicated that glucose was the main monosaccharide of these extracts in addition to galactose, arabinose, rhamnose, and galacturonic acid. Prebiotic and antioxidant activities of polysaccharidic fractions from OMWW were evaluated. Results gave evidence for their scavenging capacity toward the 2,2'-diphenyl-1-picrylhydrazyle (DPPH) (IC50 value of 89.43 μg/mL) and hydroxyl radicals (IC50 value of 158.70 μg/mL), resistance toward artificial human gastric juice, and ability to be fermented by Lactobacilli strains.
authors.affiliation: Laboratoire de Biochimie Analytique et Biotechnologies, Université M. Mammeri, BP No. 17 RP, 15000, Tizi Ouzou, Algeria.
authors.forename: Malika
authors.initials: M
authors.lastname: Nadour
authors.forename: Celine
authors.initials: C
authors.lastname: Laroche
authors.forename: Guillaume
authors.initials: G
authors.lastname: Pierre
authors.forename: Cedric
authors.initials: C
authors.lastname: Delattre
authors.forename: Farida
authors.initials: F
authors.lastname: Moulti-Mati
authors.forename: Philippe
authors.initials: P
authors.lastname: Michaud
mesh_terms: D000975:Antioxidants; D002852:Chromatography, Ion Exchange; D016166:Free Radical Scavengers / Q000737:chemistry; D007220:Industrial Waste / Q000032:analysis*; D007778:Lactobacillus / Q000254:growth & development; D009005:Monosaccharides / Q000032:analysis; D031658:Olea / Q000737:chemistry*; D011134:Polysaccharides / Q000737:chemistry* / Q000494:pharmacology*; D056692:Prebiotics; D012995:Solubility; D062065:Wastewater / Q000737:chemistry*; D014867:Water
chemical_list: D000975:Antioxidants; D016166:Free Radical Scavengers; D007220:Industrial Waste; D009005:Monosaccharides; D011134:Polysaccharides; D056692:Prebiotics; D062065:Wastewater; D014867:Water