title: Laboratory to pilot scale: Microwave extraction for polyphenols lettuce.
abstract: Microwave hydrodiffusion and gravity (MHG) technique has been applied to pilot-scale solvent-free microwave extraction (SFME) of polyphenols from Lettuce sativa. Following the dictates of green extraction and with the aim to save time and energy, the lab-scale knowledge on SFME was exploited for the development of a pilot-scale process. The investigation entailed the optimization of all main parameters (temperature, time, extracted water volume, etc.) and we showed that the polyphenols composition profile under SFME was similar to the classic methods though a bit lower in total content. The energy consumption in the optimized procedure (30min) was 1W/g of fresh matrix.
authors.affiliation: Université d'Avignon et des Pays du Vaucluse, INRA, UMR408, GREEN Extraction Team, F-84000 Avignon, France. Electronic address: sandrine.perino@univ-avignon.fr.
authors.forename: Sandrine
authors.initials: S
authors.lastname: Périno
authors.affiliation: Université d'Avignon et des Pays du Vaucluse, INRA, UMR408, GREEN Extraction Team, F-84000 Avignon, France.
authors.forename: Jean T
authors.initials: JT
authors.lastname: Pierson
authors.affiliation: Université d'Avignon et des Pays du Vaucluse, INRA, UMR408, GREEN Extraction Team, F-84000 Avignon, France.
authors.forename: Karine
authors.initials: K
authors.lastname: Ruiz
authors.affiliation: Dipartimento di Scienza e Tecnologia del Farmaco, Università di Torino, Via P. Giuria 9, 10125 Torino, Italy.
authors.forename: Giancarlo
authors.initials: G
authors.lastname: Cravotto
authors.affiliation: Université d'Avignon et des Pays du Vaucluse, INRA, UMR408, GREEN Extraction Team, F-84000 Avignon, France.
authors.forename: Farid
authors.initials: F
authors.lastname: Chemat
mesh_terms: D053000:Analytic Sample Preparation Methods / Q000295:instrumentation / Q000379:methods*; D018545:Lactuca / Q000737:chemistry*; D008872:Microwaves; D010936:Plant Extracts / Q000032:analysis / Q000302:isolation & purification*; D059808:Polyphenols / Q000032:analysis / Q000302:isolation & purification*
chemical_list: D010936:Plant Extracts; D059808:Polyphenols
keywords: Green extraction; Lettuce polyphenols; Pilot-scale reactor; Solvent-free microwave extraction