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

مجله پژوهشهای علوم و صنایع غذایی ایران

Article 1, Volume 11, Issue 3 - Serial Number 33, July and August 2015, Pages 236-246   

Document Type: Research Article-en

DOI: 10.22067/ifstrj.v1394i11.32843

Authors

Mohsen Gavahian¹; Reza Farhoosh^{* 2}; Asgar Farahnaki³; Katayoun Javidnia; Fakhri Shahidi⁴

¹Department of Food Science and Technology, Faculty of Agriculture, Ferdowsi University of Mashhad, P. O. Box: 91775-1163, Mashhad, Islamic Republic of Iran. Department of Food Science and Technology, Faculty of Agriculture, Ferdowsi

²Department of Food Science and Technology, Faculty of Agriculture, Ferdowsi University of Mashhad, P. O. Box: 91775-1163, Mashhad, Islamic Republic of Iran.

³Shiraz University

⁴Ferdowsi University of Mashhad (FUM)

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 for HD. Scanning electron micrographs of mint leaves showed a sudden eruption of essential oil glands for OAHD samples. GC- MS 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.

Keywords

Essential oils; GC-MS; Hydrodistillaion; Ohmic-assisted hydrodistillation; Mentha piperita

References