Assessment of Volatile Chemical Composition of the Essential Oil ofJatropha ribifolia(Pohl) Baill by HS-SPME-GC-MS Using Different Fibers

Abstract

The chemical composition of essential oil and volatile obtained from the roots of Jatropha ribifolia (Pohl) Baill was performed in this work. The Clevenger extractor was utilized in hydrodistillation of oil and chemical composition determined by gas chromatography coupled with mass spectrometry detector (GC-MS). The identification of compounds was confirmed by retention index (Kovats index) obtained from a series of straight chain alkanes (C7–C30) and by comparison with NIST and ADAMS library. A total of 61 compounds were identified in essential oil by GC-MS. The extraction of volatile was performed also by the use of the solid phase microextraction (SPME) with four different fibers. The essential oil extraction was extremely rapid (15 s) to avoid saturation of the fiber and the MS detector. The majority of the composition of essential oil is the terpenes: β-pinene (major compound 9.16%), β-vatirene (8.34%), α-gurjunene (6.98%), α-pinene (6.35%), camphene (4.34%), tricyclene (3.79%) and dehydro aromadendrene (3.52%) it and aldehydes and alcohols. Through the SPME it was possible to determine the nine volatile compounds not identified in oil 2,3,4-trimethyl-2-cyclopenten-1-one, α-phellandrene, 3-carene, trans-p-mentha-2,8-dienol, pinocamphone, D-verbenon, 1,3,3-trimethyl-2-(2-methyl-cyclopropyl)-cyclohexene, 2,4-diisocyanato-1-methylbenzene, and (6-hydroxymethyl-2,3-dimethylehenyl) methanol.

Effect of irrigation on the production and volatile compounds of sweet basil cultivars (Ocimum basilicum L.)

“…In the present experiment, the role of the intraspecific cultivar was established; compositional changes were registered only in the cultivar 'Kasia' for linalool, 1,8 cineole and tau-cadinol ratios. Based on the present data, the HS did not change significantly due to the irrigation treatment, which might be in connection with the higher boiling point and molecular weight affecting the volatility of compounds as mentioned also by [25].…”

Chemical Composition of Essential Oil from the Leaves ofJatropha mutabilis(Pohl) Baill (Euphorbiaceae)

“…Study of the chemical composition of essential and volatile oil obtained from the roots of Jatropha ribifolia (Pohl) Baill also reports the presence of the following compounds as β-elemene-(-) (0.01 %), spathulenol (0.74 %) (-)-spathulenol (1.25 %) 16 .…”

Characterization of the Key Aroma Compounds in Proso Millet Wine Using Headspace Solid-Phase Microextraction and Gas Chromatography-Mass Spectrometry

“…In consideration of extraction efficiency, 8 mL served as the optimal sample volume. Because the HS-SPME mechanism is based on the equilibrium of analytes among three phases (polymeric coating, headspace, and sample), sample volume directly affects two phases of the headspace and sample, which in turn influences extraction efficiency [ 21 ]. The volume of analyte removed by the fiber is proportional to the compound concentration in the sample volume.…”