title: Extraction of Oleic Acid from Moroccan Olive Mill Wastewater.
abstract: The production of olive oil in Morocco has recently grown considerably for its economic and nutritional importance favored by the country's climate. After the extraction of olive oil by pressing or centrifuging, the obtained liquid contains oil and vegetation water which is subsequently separated by decanting or centrifugation. Despite its treatment throughout the extraction process, this olive mill wastewater, OMW, still contains a very important oily residue, always regarded as a rejection. The separated oil from OMW can not be intended for food because of its high acidity of 3.397% which exceeds the international standard for human consumption defined by the standard of the Codex Alimentarius, proving its poor quality. This work gives value addition to what would normally be regarded as waste by the extraction of oleic acid as a high value product, using the technique of inclusion with urea for the elimination of saturated and unsaturated fatty acids through four successive crystallizations at 4°C and 20°C to have a final phase with oleic acid purity of 95.49%, as a biodegradable soap and a high quality glycerin will be produced by the reaction of saponification and transesterification.
authors.affiliation: Department of Chemistry and Valorisation, Faculty of Sciences Ain-Chock, HASSAN II University of Casablanca, BP 5366 Maarif, Casablanca, Morocco; Process Engineering and Environment Laboratory (PEEL), High School of Technology of Casablanca, HASSAN II University of Casablanca, BP 8012 Oasis, Casablanca, Morocco.
authors.forename: Reda
authors.initials: R
authors.lastname: Elkacmi
authors.affiliation: Process Engineering and Environment Laboratory (PEEL), High School of Technology of Casablanca, HASSAN II University of Casablanca, BP 8012 Oasis, Casablanca, Morocco.
authors.forename: Noureddine
authors.initials: N
authors.lastname: Kamil
authors.affiliation: Department of Process Engineering, National School of Mineral Industries of Rabat, BP 753 Agdal, Rabat, Morocco.
authors.forename: Mounir
authors.initials: M
authors.lastname: Bennajah
authors.affiliation: Department of Process Engineering, National School of Mineral Industries of Rabat, BP 753 Agdal, Rabat, Morocco.
authors.forename: Said
authors.initials: S
authors.lastname: Kitane
mesh_terms: D005525:Food-Processing Industry; D006801:Humans; D007220:Industrial Waste; D009018:Morocco; D019301:Oleic Acid / Q000737:chemistry / Q000302:isolation & purification*; D000069463:Olive Oil / Q000737:chemistry / Q000302:isolation & purification*; D014865:Waste Disposal, Fluid
chemical_list: D007220:Industrial Waste; D000069463:Olive Oil; D019301:Oleic Acid