title: Optimisation of phenolics recovery from Vitex agnus-castus Linn. leaves by high-pressure and temperature extraction.
abstract: To optimise recovery of phenolics from Vitex agnus-castus Linn., a non-conventional high-pressure (2-24 bar) and temperature (100-180°C) extraction method was used under nitrogen atmosphere with methanol as a solvent. Optimal temperature was between 100 and 140°C, and optimal extraction time was about one half that of conventional solid/liquid extraction at room temperature. Final yields of total polyphenols, total flavonoids, o-diphenols and anthocyanins extraction were 2.0, 3.0, 2.5 and 11-fold those obtained by conventional extraction.
authors.affiliation: a Laboratory of Energy and Materials, High School of Sciences and Technology, Sousse University , Rue Lamine Abassi 4011, Hammam, Sousse , Tunisia.
authors.forename: Mohammed
authors.initials: M
authors.lastname: Lataoui
authors.forename: Mongi
authors.initials: M
authors.lastname: Seffen
authors.forename: Bahar
authors.initials: B
authors.lastname: Aliakbarian
authors.forename: Alessandro Alberto
authors.initials: AA
authors.lastname: Casazza
authors.forename: Attilio
authors.initials: A
authors.lastname: Converti
authors.forename: Patrizia
authors.initials: P
authors.lastname: Perego
mesh_terms: D000872:Anthocyanins / Q000032:analysis / Q000302:isolation & purification*; D005419:Flavonoids / Q000032:analysis / Q000302:isolation & purification*; D010636:Phenols / Q000032:analysis / Q000302:isolation & purification*; D018515:Plant Leaves / Q000737:chemistry; D059808:Polyphenols / Q000032:analysis / Q000302:isolation & purification*; D013696:Temperature; D020950:Vitex / Q000737:chemistry*
chemical_list: D000872:Anthocyanins; D005419:Flavonoids; D010636:Phenols; D059808:Polyphenols