scholarly journals Chemical Composition of the Essential Oil of the Endemic Species Micromeria frivaldszkyana (Degen) Velen.

Molecules ◽  
2019 ◽  
Vol 24 (3) ◽  
pp. 440 ◽  
Author(s):  
Valtcho Zheljazkov ◽  
Giuseppe Micalizzi ◽  
Ivanka Semerdjieva ◽  
Luigi Mondello
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Endemic Species ◽  
Major Group ◽  
Chemical Profile ◽  
Natural Habitats ◽  
First Report ◽  
Germacrene D ◽  
Balkan Mountains ◽  
Unique Chemical

Micromeria frivaldszkyana is an endemic species found only in Bulgaria. Its essential oil (EO) composition is unknown. This study assessed the EO yield and composition of M. frivaldszkyana as a function of the location and of drying prior to the EO extraction. M. frivaldszkyana was sampled from two natural habitats, Uzana and Shipka in the Balkan Mountains; the EO was extracted via hydrodistillation and analyzed on GC/MS. The plants from the two locations had distinct EO composition. The EO content (in dried material) was 0.18% (Uzana) and 0.26% (Shipka). Monoterpene ketones were the major group of the EO constituents. Also, hydrocarbons predominated in the EO from Shipka, and alcohols predominated in the EO from Uzana. The EO from Uzana had a greater concentration of menthone (56% vs. 17% from Shipka) and neomenthol (7.8% vs. 2.4%). Conversely, the EO from Shipka had greater concentrations of pulegone (50% vs. 20% from Uzana), limonene (10.1% vs. 2.6%), and germacrene D (3.4% vs. 1.1%). Drying prior to the EO extraction altered the concentration of some constituents. This is the first report of M. frivaldszkyana EO yield and composition. The EO showed some similarities with the chemical profile of other Micromeria species, but overall, it has an unique chemical profile and may have distinctive applications.

scholarly journals Essential Oil of Piper oradendron from the Pacific Slope of Guatemala

2019 ◽  
Vol 14 (1) ◽  
pp. 1934578X1901400 ◽  
Author(s):  
José V. Martínez-Arévalo ◽  
Sully M. Cruz ◽  
Miriam A. Apel ◽  
Amélia T. Henriques ◽  
Armando Cáceres
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Endemic Species ◽  
First Report ◽  
The Pacific ◽  
Three Samples ◽  
Germacrene D ◽  
Pacific Slope ◽  
Main Components

Essential oils of leaves of the endemic species Piper oradendron Trel. & Standl. (Piperaceae) were obtained from three sites of the Guatemalan Pacific slope. The yields of the essential oils obtained by hydrodistillation varied from the site of collection (0.4-1.4%). The GC/MS analysis showed that sample A (Samayac) had up to 53 peaks that were identified, B (Popoyá) showed 31 peaks and C (Bulbuxyá) showed 22; major constituents were similar in the three samples, including α- and β-pinene (28.3-46.9%), germacrene D (10.7-22.7%), and iso-spathulenol (10.2-22-3%). This is the first report on the chemical composition of the essential oil of samples of P. oradendron from different provenances of Guatemala, suggesting little variability in its main components.

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 Chemical Composition of Hypericum richeri subsp. grisebachii Essential Oil from Croatia

2013 ◽  
Vol 8 (2) ◽  
pp. 1934578X1300800
Author(s):  
Igor Jerković ◽  
Maja Marasović ◽  
Zvonimir Marijanović ◽  
Kroata Hazler Pilepić ◽  
Željan Maleš ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Decanoic Acid ◽  
Chemical Profile ◽  
Aerial Parts ◽  
Ms Analysis ◽  
Germacrene D

The aerial parts of Hypericum richeri Vill. subsp. grisebachii (Boiss.) Nyman were collected from two different locations in Croatia and subjected to hydrodistillation. GC/FID and GC/MS analysis of the isolated essential oils revealed 64 compounds representing 94.7% and 98.2% of the total oils. Predominant constituents in both samples were: germacrene D (10.9%; 6.0%), bicyclogermacrene (4.7%; 3.5%), α-pinene (6.8%; 6.9%), β-pinene (8.1%; 5.1%), decanoic acid (4.5%; 6.8%), β-caryophyllene (3.3%; 7.5%), δ-cadinene (7.0%; 4.4%), spathulenol (6.0%; 9.5%) and tetracosane (3.1%; 5.8%). Comparison of both samples revealed similarity in the chemical composition with minor fluctuations of constituent percentages. The chemical profile of Croatian oils was in general similar to those reported for other geographic areas regarding major mono- and sesquiterpene constituents. However, spathulenol, 5-cadinene and bicyclogermacrene were more abundant in Croatian oils. The presence of decanoic acid (4.5%; 6.8%) in Croatian oils was the major difference between acids and fatty acids derivatives. Higher abundance of alkanes (particularly tetracosane and docosane) was also noticed.

scholarly journals Chemical Composition of Fruit Essential Oil of Endemic Malabaila pastinacifolia

2016 ◽  
Vol 11 (10) ◽  
pp. 1934578X1601101
Author(s):  
Nurhayat Tabanca
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Endemic Species ◽  
First Report ◽  
Hexyl Butyrate

The water distilled essential oil (EO) from the fruits of Malabaila pastinacfolia Boiss & Balansa (Apiaceae), an endemic species from Turkey, was analyzed using GC-FID and GC-MS systems. The analysis revealed 38 compounds accounting for 97.6% of the EO. Hexyl butyrate (47.2 %), hexyl hexanoate (22.7%) and α-terpinyl acetate (11.1 %) were found as the main constitutes. This is the first report on the EO composition of M. pastinacfolia.

scholarly journals First record of the chemical composition of essential oil of Piper bellidifolium, Piper durilignum, Piper acutilimbum and Piper consanguineum from the Brazilian Amazon forest

2018 ◽  
Vol 48 (4) ◽  
pp. 330-337 ◽  
Author(s):  
Carolina Alves de ARAUJO ◽  
Claudio Augusto Gomes da CAMARA ◽  
Marcilio Martins de MORAES ◽  
Geraldo José Nascimento de VASCONCELOS ◽  
Marta Regina Silva PEREIRA ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Steam Distillation ◽  
Principal Component ◽  
First Record ◽  
Amazon Forest ◽  
Chemical Profile ◽  
Flame Ionization ◽  
Germacrene D ◽  
Chemical Class

ABSTRACT Piper bellidifolium, Piper durilignum, Piper acutilimbum and Piper consanguineum are bushes that occur in the Amazon and are morphologically similar. With the aim of analyzing the chemical profile of the volatile constituents of these species, essential oils from the leaves were obtained through steam distillation and analyzed using gas chromatography-flame ionization detection (GC-FID) and gas chromatograph coupled to a mass spectrometer (GC-MS). The chemical analysis enabled the identification of 95 compounds representing 96.3 ± 0.6% of the P. bellidifolium oil, 95.5 ± 0.71% of the P. durilignum oil, 98.0 ± 1.0% of the P. acutilimbum oil and 96.1 ± 2.1% of the P. consanguineum oil. Although sesquiterpenes were the predominant chemical class in the oils of the four species, qualitative and quantitative differences were found in their chemical composition. The major constituents were (E)-nerolidol (20.3 ± 0.4%) in the P. bellidifolium oil, germacrene D (11.1 ± 0.3%) in the P. durilignum oil, and γ-eudesmol in both the P. consanguineum (18.6 ± 0.5%) and P. acutilimbum (7.5 ± 0.4%) oils. Despite their morphological similarity, a principal component analysis (PCA) of the GC-MS data clearly separated the four species according to the chemical profile of the essential oil extracted from their leaves.

scholarly journals Chemical Composition of the Essential Oil from Croton kimosorum, an Endemic Species to Madagascar

2014 ◽  
Vol 9 (1) ◽  
pp. 1934578X1400900 ◽  
Author(s):  
Delphin J. R. Rabehaja ◽  
Harilala Ihandriharison ◽  
Panja A. R. Ramanoelina ◽  
Rakotonirina Benja ◽  
Suzanne Ratsimamanga-Urverg ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Endemic Species ◽  
Time Analysis ◽  
Similar Composition ◽  
Aerial Parts ◽  
Germacrene D ◽  
Nmr Techniques ◽  
First Time ◽  
C Nmr

Croton kimosorum Leandri is an endemic species to Madagascar. The chemical composition of aerial parts, leaf and stem oils is reported for the first time. Analysis was carried out by combination of chromatographic (CC, GC), spectroscopic and spectrometric (MS, 13C NMR) techniques. In total, 76 compounds have been identified. Essential oil isolated from aerial parts contained mainly linalool (21.6%), sabinene (10.4%), 1,8-cineole (6.3%), β-pinene (6.2%), ( E)-P-caryophyllene (5.9%), terpinen-4-ol (4.8%), geraniol (4,5%) and germacrene D (2.3%). In comparison with the first sample, the composition of leaf and stem oils varied slightly, while essential oil isolated by vapor distillation from a semi-industrial still exhibited similar composition.

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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