Ohmic-assisted hydrodistillation of essential oils from Mentha piperita: A comparison with conventional hydrodistillation

Mohsen Gavahian, Reza Farhoosh, Asgar Farahnaky, Katayoun Javidnia, Fakhri Shahidi

Research output: Contribution to journalArticle

Abstract

Ohmic-assisted hydrodistillation (OAHD) is an advanced hydrodistillation (HD) technique utilizing ohmic heating process and could be considered as a novel method for the extraction of essential oils. Long extraction time is one of the major problems with traditional methods. OAHD of essential oils from the aerial parts of peppermint was studied and the results were compared with those of the conventional HD. The results showed that OAHD method had the extraction time of 19.71 min, while this value was about 55.88 min for HD. Scanning electron micrographs of mint leaves showed a sudden eruption of essential oil glands for OAHD samples. GCMS analysis did not indicate any noticeable changes in the compounds of the essential oils obtained by OAHD in comparison with HD. The results introduced OAHD as a green technology.
Original languageEnglish
Pages (from-to)236-246
Number of pages11
JournalIranian Food Science and Technology Research Journal
Volume11
Issue number3
Publication statusPublished - Sep 2015

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