scholarly journals Chemical Variability of the Essential Oil Isolated from Aerial Parts of Tetraclinis Articulata from North-Western Algeria

2015 ◽  
Vol 10 (8) ◽  
pp. 1934578X1501000 ◽  
Author(s):  
Maghnia Boussaïd ◽  
Chahrazed Bekhechi ◽  
Fawzia Beddou ◽  
Daoudi Chabane Sari ◽  
Ange Bighelli ◽  
...  
Keyword(s):  
Essential Oil ◽  
Bornyl Acetate ◽  
Pca Analysis ◽  
Aerial Parts ◽  
Group I ◽  
Tetraclinis Articulata ◽  
Chemical Variability ◽  
Germacrene D ◽  
Western Algeria ◽  
North Western

The objective was to investigate the yield and chemical composition of 50 essential oil samples isolated from leaves and flowers of Tetraclinis articulata harvested in eight locations (coastal township and highlands) of Tlemcen Province (North-Western Algeria). Essential oil yields varied drastically from sample to sample (0.03 to 0.86%, w/w). No direct correlation was observed between the yield and the altitude of the harvest areas. The oils consisted mainly of monoterpenes: α-pinene (9.2–56.5%), bornyl acetate (1.2–45.1%), camphor (0.5–40.3%), borneol (0.2–12.9%), limonene (3.6–12.5%), and myrcene (1.6–9.7%). Sesquiterpenes were represented by germacrene D (up to 14.2%) and (E)-β-caryophyllene (up to 13.3%). PCA analysis of the data allowed the distinction of two groups within the samples. The composition of group I (9 samples) was dominated by camphor, (Mean = 30.9%) followed by α-pinene (M = 19.1%) and bornyl acetate (M = 11.4%). Group II was divided into two sub-groups. Samples of sub-group IIA (8 samples) contained mainly α-pinene (M = 45.4%). Samples of the largest group IIB (33 samples) were characterized by similar contents of α-pinene (M = 28.2%) and bornyl acetate (M = 24.5%) and the occurrence of camphor to a lesser extent (M = 10.0%).

scholarly journals Composition and Chemical Variability of the Cone Oil from Algerian Tetraclinis articulata

2016 ◽  
Vol 11 (8) ◽  
pp. 1934578X1601100 ◽  
Author(s):  
Maghnia Boussaïd ◽  
Chahrazed Bekhechi ◽  
Fewzia Atik-Bekkara ◽  
Mathieu Paoli ◽  
Joseph Casanova ◽  
...  
Keyword(s):  
Essential Oil ◽  
Retention Indices ◽  
Spectroscopic Techniques ◽  
Medicinal And Aromatic Plants ◽  
Tetraclinis Articulata ◽  
Chemical Variability ◽  
Western Algeria ◽  
Main Components ◽  
First Time ◽  
C Nmr

Very little is known about the yield and chemical composition of the essential oil isolated from cones of Tetraclinis articulata (Vahl) Masters (Cupressaceae). In continuation of our on-going work devoted to the valorisation of medicinal and aromatic plants from Tlemcen Province (North-Western Algeria), cones have been harvested in eight locations (coastal township and highlands) and 40 oil samples have been isolated by hydrodistillation. Six oil samples were analyzed by a combination of chromatographic [GC(Retention indices)] and spectroscopic techniques (GC-MS, 13C NMR). Then, the remaining 34 oil samples were analyzed by [GC(RI)] and 13C NMR and the 40 compositions were submitted to statistical analysis. Essential oil yields varied substantially from sample to sample (0.17 to 1.13%, w/w). The cone oils consisted mainly of monoterpenes, with α-pinene (47.1-73.6%) and limonene (6.5-21.9%) being the main components. (E)-β-Caryophyllene and germacrene D were the major sesquiterpenes. Diterpenes, ( Z) and ( E)-biformene were identified for the first time in T. articulata essential oil. PCA analysis of the data allowed the distinction of two groups, the second group being sub-divided into two sub-groups. Groups and sub-groups were differentiated with respect to their contents of α-pinene and limonene and, to a lesser extent, of sesquiterpenes.

scholarly journals Selective BuChE Inhibitory Activity, Chemical Composition, and Enantiomeric Content of the Essential Oil from Salvia leucantha Cav. Collected in Ecuador

Plants ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1169
Author(s):  
Gabriela Villalta ◽  
Melissa Salinas ◽  
James Calva ◽  
Nicole Bec ◽  
Christian Larroque ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Inhibitory Activity ◽  
Enantiomeric Excess ◽  
Bornyl Acetate ◽  
Vitro Assay ◽  
Aerial Parts ◽  
Germacrene D ◽  
Enantioselective Gc

The essential oil (EO) of Salvia leucantha Cav. was isolated by steam distillation of the aerial parts collected in the South of Ecuador. Its physical properties were evaluated and the chemical composition of the oil was determined by GC-MS and GC-FID analyses using two chromatographic columns, DB-5ms and HP-INNOWax. Six major compounds were identified, namely, the sesquiterpenes 6.9-guaiadiene (19.14%), (E)-caryophyllene (16.80%), germacrene D (10.22%), (E)-β-farnesene (10.00%), and bicyclogermacrene (7.52%), and the monoterpenoid bornyl acetate (14.74%). Furthermore, four pairs of enantiomers were determined by enantioselective GC-MS of the essential oil. (−)-germacrene D and (+)-α-pinene showed the highest enantiomeric excess (ee%). In an in vitro assay, the essential oil demonstrated an interesting inhibitory activity of the enzyme butyrylcholinesterase (BuChE), with an IC50 = 32.60 µg/mL, which is the highest determined for a Salvia species. In contrast, the oil was weakly active against acetylcholinesterase (AChE) with an IC50 > 250 µg/mL.

scholarly journals Isothymol in Ajowan Essential Oil

2010 ◽  
Vol 5 (7) ◽  
pp. 1934578X1000500 ◽  
Author(s):  
Chahrazed Bekhechi ◽  
Jean Brice Boti ◽  
Fewzia Atik Bekkara ◽  
Djamel Eddine Abdelouahid ◽  
Joseph Casanova ◽  
...  
Keyword(s):  
Essential Oil ◽  
Seed Oil ◽  
Folk Medicine ◽  
Flowering Stage ◽  
Aerial Parts ◽  
Western Algeria ◽  
Low Altitude ◽  
Main Component ◽  
North Western

Ajowan is a popular spice that is used in folk medicine in Algeria. Most studies reported that thymol is the main component of the seed oil. Isothymol was reported to be a constituent of essential oil isolated from aerial parts. Using plants harvested in five different locations in north western Algeria, every two weeks during the flowering stage, we demonstrated that isothymol was the major component when the plant was collected near the sea at low altitude and at the beginning of the flowering stage. In other cases, thymol is the predominant constituent.

Chemical composition, antibacterial and antioxidant activities of Juniperus oxycedrus essential oils from North Western Algeria

2018 ◽  
Vol 7 (2) ◽  
pp. 74-83
Author(s):  
Cherifa Zahaf ◽  
Djilali Achour ◽  
Meriem Mokhtar ◽  
Moussa Brada
Keyword(s):  
Essential Oils ◽  
Steam Distillation ◽  
Antioxidant Activities ◽  
Inhibition Zone ◽  
Inhibitory Effect ◽  
Juniperus Oxycedrus ◽  
Germacrene D ◽  
Western Algeria ◽  
North Western ◽  
Β Carotene

The aim of the current study was to identify the essential oils of Juniperus oxycedrus from North Western Algeria (Mostaganem) by gas chromatography coupled to mass spectrometer (GC-MS), and to evaluate their antibac-terial and antioxidant activities. Extraction was carried out by two processes, hydrodistillation (HD) and steam distillation (SD). Analysis by GC-MS led to the identification of 38 components using both methods. HD was found to be the best process for the extraction of Juniperus essential oil, and the ma-jor identified compounds were: germacrene-D (38.28%), followed by α.-pinene (17.66%), and δ-cadinene (5.91%). In the antibacterial test, SD oil had a higher inhibitory effect. The strain Staphylococcus aureus was the most sensitive with an inhibition zone of 15.25 mm and a minimum inhibitory concentration (MIC) of 0.25 mg/mL. The antioxidant activity of J. oxycedrus es-sential oils obtained by HD was more important than SD (IC50= 19.52 mg/mL and IC50= 38.62 mg/mL) with DPPH and β-carotene bleaching tests respec-tively. Essential oils of J. oxycedrus could therefore represent good candidates to be used as antioxidant and antibacterial agents.

scholarly journals Essential Oil Compositions of Two Populations of Salvia samuelssonii Growing in Different Biogeographical Regions of Jordan

2014 ◽  
Vol 9 (1) ◽  
pp. 1934578X1400900 ◽  
Author(s):  
Ammar Bader ◽  
Pier Luigi Cioni ◽  
Nunziatina De Tommasi ◽  
Guido Flamini
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Aerial Parts ◽  
Germacrene D ◽  
Biogeographical Regions ◽  
The Mediterranean ◽  
Two Populations

The composition of the essential oils of flowering aerial parts of Salvia samuelssonii Rech. fil. (Lamiaceae Section Aethiopis), collected in two different biogeographical regions, has been analyzed. Sample1, collected in a Mediterranean-like region, “As-Subayhi”, contains mainly monoterpenes (54.2%), sesquiterpenes (27.6%) and phenylpropanoids (10.5%), while sample 2, collected in the Irano-Turanian region, “Al-Adasiyyah”, contains mainly phenylpropanoids (30.6%), monoterpenes (24.9%) and sesquiterpenes (21.2%). In Sample1, the most representative constituents were sabinene (21.5%), cis-chrysanthenyl acetate (20.8%), germacrene D (9.3%) and myristicin (5.9%), while in sample 2, myristicin (24.1%), sclareoloxide (6.3%), and germacrene D (5.7%) were main constituents. The rate of oxygenated derivatives in the Irano-Turanian sample was higher than the Mediterranean sample. Myristicin is an unusual constituent of Salvia species.

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%).

scholarly journals Two Distinct Essential Oil Bearing Races of Tanacetum nubigenum Wallich ex DC from Kumaon Himalaya

2007 ◽  
Vol 2 (7) ◽  
pp. 1934578X0700200 ◽  
Author(s):  
Chandan S. Chanotiya ◽  
Chandra S. Mathela
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Plant Material ◽  
2D Nmr ◽  
Bornyl Acetate ◽  
2D Nmr Spectroscopy ◽  
Aerial Parts ◽  
Kumaon Himalaya ◽  
Linalool Oxide ◽  
Total Oil

The essential oil from the aerial parts of Tanacetum nubigenum Wallich ex DC collected from the Milam glacier moraine showed the presence of 73 compounds, of which 69, representing 87.9% of the total oil, have been identified, with bornyl acetate (39.7%), borneol (10.6%), ( E)-β-farnesene (6.6%) and 1,8-cineole (5.8%) as major constituents, while the oil from the plant material from the Pindari glacier area contained a total of 81 compounds, of which 77 have been identified. This oil was characterized by the presence of (3 R, 6 R)-linalool oxide acetate (69.4%), β-eudesmol (3.2%), selin-11-en-4α-ol (3.2%) and (3.2% and 1.2%, respectively) for compounds ( E) and ( Z)-2-(2,4-hexadiynylidene)-1,6-dioxospiro [4,4] non-3-ene, respectively. The major constituents of the essential oils from the aerial parts were separated and characterized by GC, GC/MS and 1D- and 2D-NMR spectroscopy. The chemical differences between the two essential oils place them as distinct chemical races or chemotypes.

scholarly journals Essential Oil Composition and Antibacterial Activity of Monticalia greenmaniana (Asteraceae)

2012 ◽  
Vol 7 (2) ◽  
pp. 1934578X1200700 ◽  
Author(s):  
José Cárdenas ◽  
Janne Rojas ◽  
Luís Rojas-Fermin ◽  
María Lucena ◽  
Alexis Buitrago
Keyword(s):  
Antibacterial Activity ◽  
Essential Oil ◽  
Mass Spectra ◽  
Essential Oil Composition ◽  
Gram Negative Bacteria ◽  
Oil Composition ◽  
Aerial Parts ◽  
Germacrene D ◽  
Leaf Oil ◽  
Leaf Essential Oil

The essential oils from fresh aerial parts of Monticalia greenmaniana (Hieron) C. Jeffrey (Asteraceae) collected in March, were analyzed by GC/MS. Oil yields (w/v) of 0.1% (flowers), 0.07%, (stems) and 0.1% (leaves) were obtained by hydrodistillation. Thirteen, sixteen and eighteen components, respectively, were identified by comparison of their mass spectra with those in the Wiley GC-MS Library data base. The major components of the flower and stem oils were 1-nonane (38.8% flowers; 33.5% stems), α-pinene (29.0% flowers; 14.8% stems) and germacrene D (15.6% flowers; 18.6% stems). However, in the leaf oil, germacrene D was observed at 50.7%, followed by β-cedrene at 8.4 %. The leaf essential oil showed a broad spectrum of antibacterial activity against the important human pathogenic Gram-positive and Gram-negative bacteria Staphylococcus aureus (ATCC 25923), Enterococcus faecalis (ATCC 19433), Escherichia coli (ATCC 25922), Pseudomonas aeruginosa (ATCC 27853) and Klebsiella pneumoniae (ATCC 25955) with MIC values ranging from 75 to 6000 ppm.

scholarly journals Antioxidant and Antibacterial Activities of the Essential Oil of Moroccan Tetraclinis articulata (Vahl) Masters

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Halima Rabib ◽  
Chaimaa Elagdi ◽  
Mohammed Hsaine ◽  
Hassan Fougrach ◽  
Tayeb Koussa ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Essential Oil ◽  
Antioxidant Properties ◽  
Antibacterial Activities ◽  
Bornyl Acetate ◽  
Radical Trap ◽  
Tetraclinis Articulata

The purpose of this study is to evaluate and compare the antioxidant and antibacterial activities of essential oil isolated from Tetraclinis articulata (Vahl) leaves, Masters originating in Morocco (Benslimane Region, Atlantic-influenced plain). The analysis of the major compounds of essential oil was performed by gas chromatography and mass spectrometry, and this oil is dominated by bornyl acetate (35.05%), camphor (11.17%), and α-pinene (10.84%). The antioxidant properties were evaluated by the test of the radical trap 2,2-diphényl-1-picrylhydrazyl (DPPH), and the antimicrobial activity of T. articulata essential oil was tested against clinical isolates of Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli which have been inhibited from the 25 μg/mL.

Sign in / Sign up

Export Citation Format

Share Document