title: Microwave-assisted techniques (MATs); a quick way to extract a fragrance: a review.
abstract: In recent years microwave-assisted techniques (MATs) have been introduced as a new process design and operation for essential oils extraction, representing a viable alternative to conventional old-type methods of distillation which are routinely used for the isolation of essential oils from herbs, flowers and spices prior to gas chromatographic analysis. The novelty of the technique lies in a microwave heating source generating a mixture of boiling solvent with the raw plant material settled above (or drenched inside). Several variations of distillation techniques are evaluated in terms of substantial energy saving, rapidity, product yield, cleanliness and product quality. Results confirm the effectiveness of MATs, which allow extraction of essential oils in shorter extraction time (up-to 9 times faster), using "greener" procedures and provide a higher quality essential oil with better sensory and antioxidant properties.
authors.affiliation: Environmental Quality and Technology Laboratory, Department of Financial and Management Engineering, University of the Aegean, Kountouriotou Str. 41, GR-82100 Chios, Greece. kokolakis@fme.aegean.gr
authors.forename: Antonios K
authors.initials: AK
authors.lastname: Kokolakis
authors.affiliation: Environmental Quality and Technology Laboratory, Department of Financial and Management Engineering, University of the Aegean, Kountouriotou Str. 41, GR-82100 Chios, Greece.
authors.forename: Spyridon K
authors.initials: SK
authors.lastname: Golfinopoulos
mesh_terms: D055772:Green Chemistry Technology; D008872:Microwaves; D009822:Oils, Volatile / Q000737:chemistry / Q000302:isolation & purification*; D010944:Plants / Q000737:chemistry*
chemical_list: D009822:Oils, Volatile