Microwave hydrodiffusion and gravity, a new technique for extraction of essential oils - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Access content directly
Journal Articles Journal of Chromatography A Year : 2008

Microwave hydrodiffusion and gravity, a new technique for extraction of essential oils

Abstract

A newprocess design and operation for the extraction of essential oilswas developed. Microwave hydrodiffusion and gravity (MHG) is a combination of microwaves for hydrodiffusion of essential oils from the inside to the exterior of biological material and earth gravity to collect and separate. MHG is performed at atmospheric pressure without adding any solvent orwater. MHG has been compared with a conventional technique, hydrodistillation (HD), for the extraction of essential oil from two aromatic herbs: spearmint (Mentha spicata L.) and pennyroyal (Mentha pulegium L.) belonging to the Labiatae family. The essential oils extracted by MHG for 15 min were quantitatively (yield) and qualitatively (aromatic profile) similar to those obtained by conventional hydrodistillation for 90 min. MHG also prevents pollution through potential 90% of energy saved which can lead to greenhouse gas emission benefits

Dates and versions

hal-02665876 , version 1 (31-05-2020)

Identifiers

Cite

Maryline Vian, Xavier Fernandez, Franco Visinoni, Farid Chemat. Microwave hydrodiffusion and gravity, a new technique for extraction of essential oils. Journal of Chromatography A, 2008, 1190 (1-2), pp.14-17. ⟨10.1016/j.chroma.2008.02.086⟩. ⟨hal-02665876⟩
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