title: A comparison of essential oils obtained from lavandin via different extraction processes: Ultrasound, microwave, turbohydrodistillation, steam and hydrodistillation.
abstract: A total of eight extraction techniques ranging from conventional methods (hydrodistillation (HD), steam distillation (SD), turbohydrodistillation (THD)), through innovative techniques (ultrasound assisted extraction (US-SD) and finishing with microwave assisted extraction techniques such as In situ microwave-generated hydrodistillation (ISMH), microwave steam distillation (MSD), microwave hydrodiffusion and gravity (MHG), and microwave steam diffusion (MSDf)) were used to extract essential oil from lavandin flowers and their results were compared. Extraction time, yield, essential oil composition and sensorial analysis were considered as the principal terms of comparison. The essential oils extracted using the more innovative processes were quantitatively (yield) and qualitatively (aromatic profile) similar to those obtained from the conventional techniques. The method which gave the best results was the microwave hydrodiffusion and gravity (MHG) method which gave reduced extraction time (30min against 220min for SD) and gave no differences in essential oil yield and sensorial perception.
authors.affiliation: Université d'Avignon et des Pays de Vaucluse, INRA, UMR408, GREEN Extraction Team, 84000 Avignon, France. sandrine.issartier@univ-avignon.fr
authors.forename: Sandrine
authors.initials: S
authors.lastname: Périno-Issartier
authors.forename: Christian
authors.initials: C
authors.lastname: Ginies
authors.forename: Giancarlo
authors.initials: G
authors.lastname: Cravotto
authors.forename: Farid
authors.initials: F
authors.lastname: Chemat
mesh_terms: D057168:Distillation / Q000379:methods*; D008401:Gas Chromatography-Mass Spectrometry; D027523:Lavandula / Q000737:chemistry*; D008872:Microwaves; D009822:Oils, Volatile / Q000032:analysis* / Q000302:isolation & purification; D013227:Steam; D014465:Ultrasonics
chemical_list: D009822:Oils, Volatile; D013227:Steam
keywords: Essential oil; Green analytical chemistry; Microwave extraction; Steam distillation; Turbohydrodistillation; Ultrasound assisted extraction