scholarly journals Chemical Composition of Angelica pancicii Essential Oil Determined by Liquid and Headspace GC-MS Techniques

2014 ◽  
Vol 9 (2) ◽  
pp. 1934578X1400900 ◽  
Author(s):  
Strahinja R. Simonović ◽  
Vesna P. Stankov-Jovanović ◽  
Violeta D. Mitić ◽  
Marija D. Ilić ◽  
Goran M. Petrović ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Endemic Species ◽  
Injection Mode ◽  
Liquid Injection ◽  
Total Oil ◽  
Headspace Gc

The essential oil of the Balkan endemic species, Angelica pancicii, obtained by hydrodistillation, was analyzed by GC and GC-MS, applying the liquid injection mode. These results were compared with the chemical composition of volatiles achieved by the “headspace” injection mode, followed by GC and GC-MS (HS-GC-MS). A total of 40 compounds were identified in the essential oil (98.8% of the total oil) and 44 by HS-GC-MS (99.8% of the total oil). The most abundant class of compounds in both cases was monoterpenoids, which formed 92.7% of the essential oil (97.7% by HS-GC-MS) of total identified compounds. The major components in both cases were β-phellandrene (54.9% and 60.1%, respectively), α-pinene (14.5% and 20.1%, respectively) and α-phellandrene (4.5% and 4.3%, respectively).

scholarly journals Chemical Composition of the Essential oil of Laserpitium latifolium from Serbia

2015 ◽  
Vol 10 (4) ◽  
pp. 1934578X1501000
Author(s):  
Violeta Mitić ◽  
Vesna Stankov-Jovanović ◽  
Aleksandra Djordjevic ◽  
Marija Ilic ◽  
Strahinja Simonovic ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Injection Mode ◽  
Aerial Parts ◽  
Liquid Injection ◽  
Total Oil

The essential oil of aerial parts of Laserpitium latifolium L. from Serbia, obtained by hydro distillation, was analyzed by GC-MS and GC-FID applying liquid injection mode; thirty-four compounds were registered (99.9% of the total oil). The essential oil clearly belongs to the monoterpenoid chemotype, with monoterpenoids constituting 99.8% of the total oil. Sabinene (47.8%), α-pinene (25.0%) and β-pinene (7.1%) were the major constituents.

scholarly journals Chemical composition of Aster albanicus Deg. (Asteraceae) essential oil: Taxonomical implications

2015 ◽  
Vol 67 (3) ◽  
pp. 1055-1061 ◽  
Author(s):  
Nemanja Rajcevic ◽  
Petar Marin ◽  
Ljubodrag Vujisic ◽  
Zoran Krivosej ◽  
Vlatka Vajs ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Statistical Methods ◽  
Endemic Species ◽  
Monoterpene Hydrocarbons ◽  
Germacrene D

The composition of essential oil isolated from the areal parts of Aster albanicus Deg, an endemic species of the central Balkans, was analyzed. In total, 111 compounds were identified, representing 98% of the essential oil. The essential oil was dominated by sesquiterpene (69.3%) and monoterpene hydrocarbons (15.9%), with germacrene D as the most abundant compound (34.7%). Several multivariant statistical methods (HCA, NJ, PCoA) were deployed to infer the relation between A. albanicus and other species belonging to this genus. Taxonomical implications are discussed.

scholarly journals Comparison of the Chemical Composition and Antimicrobial Activity of Thymus serpyllum Essential Oils

2015 ◽  
Vol 43 (2) ◽  
pp. 432-438 ◽  
Author(s):  
Aneta WESOŁOWSKA ◽  
Monika GRZESZCZUK ◽  
Dorota JADCZAK ◽  
Paweł NAWROTEK ◽  
Magdalena STRUK
Keyword(s):  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Micrococcus Luteus ◽  
Gas Chromatography Mass Spectrometry ◽  
E Coli ◽  
Thymus Serpyllum ◽  
Main Components ◽  
Total Oil

The chemical composition of the essential oils obtained by hydrodistillation from the aerial parts of Thymus serpyllum and Thymus serpyllum‘Aureus’ has been investigated by gas chromatography-mass spectrometry (GC-MS). Forty-seven compounds (99.67% of the total oil) wereidentified in the essential oil of T. serpyllum. The main components found in the oil were carvacrol (37.49%), -terpinene (10.79%), -caryophyllene (6.51%), p-cymene (6.06%), (E)--ocimene (4.63%) and -bisabolene (4.51%). Similarly, carvacrol (44.93%), -terpinene(10.08%), p-cymene (7.39%) and -caryophyllene (6.77%) dominated in the oil of T. serpyllum ‘Aureus’. A total of forty three compounds wereidentified in this oil, representing 99.49% of the total oil content. On the basis of the obtained data it was proved that the content of 1-octen-3-ol,eucalyptol, (Z)--ocimene, (E)--ocimene, -terpinene, carvacrol methyl ether, germacrene D and -bisabolene was significantly higher for T.serpyllum while T. serpyllum ‘Aureus’ was characterized by a significantly higher content of 3-octanone, 3-octanol, p-cymene, borneol andcarvacrol. The isolated essential oils were evaluated for their antimicrobial activity against nine reference strains (Escherichia coli, Staphylococcusaureus, Staphylococcus epidermidis, Streptococcus agalactiae, Enterococcus faecalis, Bacillus cereus, Micrococcus luteus, Proteus vulgaris and Candidaalbicans) by the microdilution technique. Based on this test, the minimum inhibitory concentrations (MIC) of essential oil were calculated. Thevolatile oil obtained from T. serpyllum showed the highest antimicrobial activity relative to the strain of E. coli (MIC=0.025 μL/mL) and to theyeast C. albicans (MIC=0.05 μL/mL). Similarly, a significant antimicrobial activity exhibited T. serpyllum ‘Aureus’ essential oil, although the MICvalues obtained in that case for E. coli and C. albicans strains were twice as high and were respectively 0.05 μL/mL and 0.1 μL/mL.

Antibacterial Activity and Composition of the Essential Oil of Nepeta Menthoides from Iran

2009 ◽  
Vol 4 (2) ◽  
pp. 1934578X0900400 ◽  
Author(s):  
Ali Sonboli ◽  
Abbas Gholipour ◽  
Morteza Yousefzadi ◽  
Mehran Mojarrad
Keyword(s):  
Antibacterial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
High Activity ◽  
Oxygenated Monoterpenes ◽  
Total Oil

The antibacterial activity and chemical composition of the essential oil obtained from the aerial flowering parts of Nepeta menthoides were analyzed by GC and GC-MS. Twenty-nine compounds representing 97.6% of the total oil were identified. Oxygenated monoterpenes (71.9%) were the principal fraction of the oil with 1,8-cineole (33.8%) and 4aα-7α-7aα-nepetalactone (23.2%) as the main constituents. The antibacterial activity of the oil and its two main constituents were tested against seven bacteria. High activity of the oil and its two main constituents was demonstrated against all the tested bacteria with MIC values in the range of 1.8 - 7.2, 0.9 - 7.2 and 1.8 - 15 mg/mL, respectively.

scholarly journals Chemical Composition of the Essential Oil from Jasminum pubescens Leaves and Flowers

2009 ◽  
Vol 4 (12) ◽  
pp. 1934578X0900401 ◽  
Author(s):  
Abeer Temraz ◽  
Pier Luigi Cioni ◽  
Guido Flamini ◽  
Alessandra Braca
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Total Oil ◽  
Terpene Derivatives

The essential oil obtained from the leaves and flowers of Jasminum pubescens (Retz.) Willd. (Oleaceae) has been analyzed by GC/MS. Sixty-three and sixty-four components of the essential oils, representing 95.0% of the total oil for the leaves and 91.9% for the flowers, were identified, respectively. Both the oils were mainly constituted by non-terpene derivatives (58.2% and 50.8%, respectively), among which aldehydes (44.7%) characterized the essential oil from the leaves. Besides aldehydes (14.3%) and other carbonylic compounds (acids, esters, and ketones, 38.1%) were the main non-terpene compounds of the oil from the flowers.

scholarly journals Chemical Composition of Vernonia albicans Essential Oil from India

2014 ◽  
Vol 9 (7) ◽  
pp. 1934578X1400900
Author(s):  
Rajesh K. Joshi
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Flame Ionization Detector ◽  
Ionization Detector ◽  
Flame Ionization ◽  
Aerial Parts ◽  
Sesquiterpene Hydrocarbons ◽  
Total Oil

The chemical composition of the hydro-distilled essential oil obtained from the flowering aerial parts of Vernonia albicans DC. (Asteraceae) was analyzed by gas chromatography equipped with a flame ionization detector (GC-FID) and gas chromatography coupled with a mass spectrometry (GC/MS). Thirty-nine compounds have been identified, representing 97.5% of the total oil. The major constituents were β-caryophyllene (34.3%), γ-amorphene (19.5%), 9-epi-β-caryophyllene (6.9%), and α-pinene (6.9%). The oil was found to be rich in sesquiterpene hydrocarbons (73.9%).

scholarly journals Chemical Composition of the Essential Oil of Croton bonplandianus from India

2014 ◽  
Vol 9 (2) ◽  
pp. 1934578X1400900
Author(s):  
Rajesh K. Joshi
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Gas Chromatography Mass Spectrometry ◽  
Caryophyllene Oxide ◽  
Aerial Parts ◽  
Sesquiterpene Hydrocarbons ◽  
Germacrene D ◽  
Total Oil

The essential oil obtained from the aerial parts of Croton bonplandianus Baill. was analyzed by gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS). A total of 37 compounds have been identified, representing 96.2% of the total oil. The main constituents were identified as β-caryophyllene (16.7%), germacrene D (14.7%), borneol (8.3%), Z-β-damascenone (6.(%), isobornyl acetate (6.2%), α-humulene (6.1%), germacrene A (5.2%) and caryophyllene oxide (4.5%). The oil was rich in sesquiterpene hydrocarbons (60.1%).

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