Comparison of headspace solvent microextraction, hydrodistillation solvent microextraction, and solid-phase microextraction for the study of volatile components ofKelussia odoratissimaMozaff. by GC-MS

Abstract

Summary Kelussia odoratissima Mozaff. is a wild and endangered endemic plant found only in limited areas of central Zagros mountains, Iran. Three microextraction methods, that is, headspace solvent microextraction (HS-SME), hydrodistillation solvent microextraction (HD-SME), and solid-phase microextraction (SPME), and a conventional hydrodistillation method were used and compared for the extraction and gas chromatography- mass spectrometric (GC-MS) analysis of volatile components of the plant. In the HS-SME and HD-SME methods, a suspended n-heptadecane microdroplet was used for the extraction from the sample headspace, while in the SPME method, a PDMS fiber was applied. The highest extraction efficiency was obtained for the SPME method, with the highest number of identified components and best precision. As a consequence, the SPME method was used for the comparison of the volatile components of seeds, leaves, and pedicles of K. odoratissima collected from three different regions. One of the major componen...