scholarly journals Comparative evaluation of the essential oil terpenoids in the stem and leaf of Ziziphora clinopodioides in the regions of Almeh and Sojough of Golestan province, Iran

2012 ◽  
pp. 283-291 ◽  
Author(s):  
Pouneh Ebrahimi ◽  
Akram Mirarab-Razi ◽  
Abbas Biabani
Keyword(s):  
Essential Oil ◽  
Comparative Evaluation ◽  
Genetic Factors ◽  
Oil Composition ◽  
Flowering Stage ◽  
Microwave Assisted ◽  
Oxygenated Monoterpenes ◽  
Aerial Parts ◽  
Leaf Oil ◽  
Golestan Province

Microwave-assisted hydrodistillation was used to isolate essential oil from the leaf and stem of Ziziphora clinopodioides collected in the flowering stage on two locations, Almeh and Sojogh, of the Golestan Province (Iran), in June of 2009. The total contents of monoterpene and sesquiterpene fractions (52.45% and 1.08%, respectively) in the leaf oil of Almeh plants were higher than those of Sojogh (46.64% and 0.12%, respectively). The essential oil of the stem of the plants from Sojogh was characterized by the presence of eight oxygenated monoterpenes (22.17%), while four oxygenated monoterpenes (11.15%), one monterpene hydrocarbon (2.71%), and one oxygenated sesquiterpene (0.21%) were found in the plants from the region of Almeh. The analysis of the essential oil of dried aerial parts showed the presence of oxygenated monoterpenes pulegone and menthol (the region of Sojogh) and pulegone, 1,8-cineol, D-neoisomenthol and chrysanthenone (the region of Almeh), as the main constituents. Also, chrysanthenone (9.75%), found as the second major component of the leaf of Z. clinopodioides of Almeh, was not identified as the oil component of the other region. The results obtained on the chemical composition of Z. clinopodioides oil of two regions from the Golestan Province revealed that in general, that there are some differences in the major components and their relative concentrations. This may be probably due to the different environmental and genetic factors, different chemotypes and the nutritional status of the plants, as well as other factors that can influence the oil composition.

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 Essential Oil Composition of Thymus fedtschenkoi Ronniger at Different Growing Altitudes in Mazandaran, Iran

2018 ◽  
Vol 51 (2) ◽  
pp. 75-83 ◽  
Author(s):  
H. Ghelichnia
Keyword(s):  
Essential Oil ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Flowering Stage ◽  
Mazandaran Province ◽  
Aerial Parts ◽  
Negative Effect ◽  
North Of Iran ◽  
And Function ◽  
Positive Effect

Abstract Thymus fedtschenkoi Ronniger (Lamiaceae) is a permanent, that grows in some mountain rangelands of Iran, including Mazandaran province. The aerial parts of Thymus fedtschenkoi were collected during flowering stage in June 2012, from mountain rangelands of Mazandaran province, in north of Iran. Samples were collected from five altitudes (1300 m, 1600 m, 2000 m, 2400 m and 3000 m) in mountain region of Mazandaran province. The goal of current research was to assessment the effect of altitude on the chemical composition and function of essential oil in Thymus fedtschenkoi. The essential oil were obtained by hydrodistillation and analyzed by gas chromatography (GC) and gas spectrometry (GC-MS). Based on the results, the essential oil content is between 0.92-1.31%, at different altitudes. The highest content of essential oil (1.31%%) was extracted in the highest altitude (3000 m), while it was opposite (0.92%) in the lowest altitude (1300 m). The main essential oil compounds of Thymus fedtschenkoi samples were thymol (8.62%-36.86%), carvacrol (6.787%-68.39%), γ-terpinene (1.473T-6.461%), p-cymen (5.764%-16.204%) and linalool (0.465%-6.457 6.8%). According to the results, altitude has a positive effect on the percentage of essential oils and essential oil increases with increasing altitude. The altitude has a negative effect on the percentage of thymol and the content of thymol decreased with increasing altitude. The altitude has a positive effect on the percentage of carvacrol and the content of carvacrol increased with increasing altitude.

scholarly journals ESSENTIAL OIL COMPOSITION OF THYMUS FALLAX FISCH. & C.A. MEY. AT DIFFERENT GROWING ALTITUDES IN MAZANDARAN, IRAN

2020 ◽  
Vol 53 (3) ◽  
Author(s):  
H.assan GHELICHNIA
Keyword(s):  
Essential Oil ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Flowering Stage ◽  
Mazandaran Province ◽  
Aerial Parts ◽  
Negative Effect ◽  
North Of Iran ◽  
And Function ◽  
Positive Effect

Thymus fallax Fisch. & C.A. Mey. (Lamiaceae) is a permanent plant that grows in some mountain rangelands of Mazandaran province in Iran. The aerial parts of Thymus fallax were collected during flowering stage from mountain rangelands of Mazandaran province, in North of Iran. Around samples were collected from three altitudes (2400 m, 2700 m and 3000 m a.s.l.), in mountain regions of Mazandaran province. The goal of current research was to assess the effect of altitude on the chemical composition and function of essential oil in Thymus fallax. The essential oil was obtained by hydrodistillation and analyzed by gas chromatography (GC) and gas spectrometry (GC-MS). Based on the results, the essential oil content is between 1.12 - 1.61% at different altitudes. The result of study shows that the highest concentrated essential oil (1.61%) was extracted in the lowest altitude (2400 m), while it was opposite, (0.1.12%) in the highest altitude (3000 m). The main compounds of essential oil are: thymol (5.95% - 10.06%), carvacrol (13.63% - 69.04%), p-cymene (4.19% - 12.18%) and borneol (4.72% - 5.66%). According to the results, altitude has a negative effect on the percentage of essential oils and essential oil decreases with increasing altitude. The altitude has a negative effect on the percentage of thymol and the content of thymol decreased with increasing altitude. The altitude has a positive effect on the percentage of carvacrol and the content of carvacrol increased with increasing altitude.

scholarly journals Essential Oil Composition of Thymus trauvetteri Klokov & Desj. at Different Growing Altitudes in Mazandaran, Iran

2019 ◽  
Vol 52 (2) ◽  
pp. 197-205
Author(s):  
H. Ghelichnia
Keyword(s):  
Essential Oil ◽  
Essential Oil Composition ◽  
Individual Variability ◽  
Oil Composition ◽  
Flowering Stage ◽  
Mazandaran Province ◽  
Aerial Parts ◽  
Significant Difference ◽  
North Of Iran ◽  
And Function

Abstract Thymus trauvetteri Klokov & Desj. (Lamiaceae) is a permanent species that grows in some mountain rangeland of Iran including Mazandaran province. The aerial parts of Thymus trauvetteri were collected during flowering stage in June 2014, from mountain rangelands of Mazandaran province,in North of Iran. Around samples collected from four altitudes (2100 m, 2400 m, 2700 m and 3000 m) in mountain region of Mazandaran province. The goal of current research was to assess the effect of altitude on the chemical composition and function of essential oil in Thymus trauvetteri. The essential oil were obtained by hydrodistillation and analyzed by gas chromatography (GC) and gas spectrometry (GC-MS). Based on the results, the essential oil content is between 1.01-1.51% at different altitudes. The highest essential oil (1.51%%) was extracted at an altitude of 2400 m, while it was opposite (1.01%) at an altitude of 3000 m. The main compounds essential oil of Thymus trauvetteri samples were identified: thymol (5.93%-49.75%), carvacrol (1.78%-54.02%), and p-cymen (6.98%-19.07%). According to the results, altitude was significantly (p≤ 0.05) effective on essential oil, thymol, carvacrol and p-cymen rates according to results of correlation analysis. The highest percentage of essential oil is at an altitude of 2400 m and the lowest is 3000 m above sea level. The highest percentage of thymol is in L3 (2700 m) and lowest is in L1 (2100 m). The highest percentage of carvacrol is in L3 (2700 m) and lowest is in L4 (3000 m). The highest percentage of p-cymen is in L1, L2, L3 (2100, 2400 and 2700 m, no significant difference) and lowest is in L4 (3000 m). Variations in essential oil rates and compositions may be due to on genetic, ecological or individual variability.

scholarly journals Essential Oil Chemical Composition and Headspace Volatiles Profile of Achillea coarctata from Serbia

2016 ◽  
Vol 11 (4) ◽  
pp. 1934578X1601100 ◽  
Author(s):  
Ivana R. Kostevski ◽  
Goran M. Petrović ◽  
Gordana S. Stojanović ◽  
Jelena G. Stamenković ◽  
Bojan K Zlatković
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Headspace Volatiles ◽  
Aerial Parts ◽  
Germacrene D ◽  
Leaf Oil ◽  
Stems And Leaves

This study reports the essential oil composition and headspace volatiles profile of Achillea coarctata Poir. from Serbia. The inflorescences, stems and leaves, and the aerial parts of A. coarctata were analyzed separately. Germacrene D, α-terpineol and 1,8-cineole were the main constituents of the aerial parts essential oil; 1,8-cineole, cis-cadin-4-en-7-ol and α-terpineol were the most dominant compounds in the inflorescence essential oil, while the most abundant components in the stem and leaf oil were germacrene D, cis-cadin-4-en-7-ol and ledol. The percentages of monoterpenoids and sesquiterpenoids in the aerial parts were the same, while there were differences in distribution of these compound classes in inflorescence and stem and leaf essential oils. The major components of the headspace volatiles were the same for aerial parts, inflorescence and stem and leaves: 1,8-cineole, β-pinene and α-pinene.

scholarly journals Essential oil composition of Artemisia lehmanniana Bunge. Extracted by Hydrodistillation, microwave assisted hydrodistillation and solid phase micro extraction, A comparative study

2015 ◽  
Vol 9 (2) ◽  
pp. 25-27
Author(s):  
N. Rastakhiz ◽  
P. Abereoomand Azar ◽  
M. Saber Tehrani ◽  
M. Moradalizadeh ◽  
K. Larijani
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Solid Phase ◽  
Life Sciences ◽  
Essential Oil Composition ◽  
Solid Phase Micro Extraction ◽  
Oil Composition ◽  
Microwave Assisted ◽  
Aerial Parts ◽  
Total Oil

Artemisia lehmanniana Bunge. is a genus of small herbs and shrubs found in northern temperate regions. It belongs to the important family compositae(Asteraceae). The chemical composition of the  essential oilsfrom aerial parts of A.lehmanniana growing wild in Iran has been studied. Oils were obtained byhydrodistillation(HD), microwave assisted hydrodistillation (MAHD) and solid phase micro extraction (SPME) methods and analyzed by GC and GC-MS. Nine compounds were identified in essential oil from plant was extracted using HD representing 94.7% of the total oil. The main constituents of the oil were camphor(52.7%),1,8-cineol(21.2%),cis-thujone(8.2%) and octane(5.0%).Ten compounds were identified in essential oil from plant was extracted using MAHD representing 96.5% of the total oil.The main constituents of the oil were camphor(40.8%),1,8-cineole(30.9%), trans-thujone (8.5%) and camphene(7.0%). five compounds were identified in essential oil from plant was extracted using SPME representing 97.7% of the total oil. The main constituents of oil were camphor(40.8%),1,8-cineol(32.9%),cis-thujone(12.0%) and camphene(6.7%).DOI: http://dx.doi.org/10.3126/ijls.v9i2.12044 International Journal of Life Sciences 9 (2) : 2015; 25-27

scholarly journals  New menthone type of Mentha pulegium L. volatile oil from northwest Iran

2011 ◽  
Vol 29 (No. 3) ◽  
pp. 285-290 ◽  
Author(s):  
M.B. Hassanpouraghdam ◽  
A.B. Akhgari ◽  
M.A. Aazami ◽  
J. Emarat-Pardaz
Keyword(s):  
Essential Oil ◽  
Volatile Oil ◽  
Oil Composition ◽  
Mentha Pulegium ◽  
Food Industries ◽  
Aerial Parts ◽  
Sesquiterpene Hydrocarbons ◽  
Main Class ◽  
Northwest Iran ◽  
A Minor

The constituents of the volatile oil of air-dried aerial parts of Mentha pulegium L. (Lamiaceae) plants wildly growing in Northwest Iran were analysed by GC/MS. 46 components were identified, comprising 96.6% of the essential oil. Monoterpenes (78.9%) were the main class of the identified components followed by a minor proportion of sesqui-<br />terpenes (11%). Oxygenated monoterpenes (75.3%) were the major subclass of volatile oil components with menthone (38.7%), menthol (11.3%), neomenthol (10.5%), and pulegone (6.8%) as major compounds. Sesquiterpene hydrocarbons (10.6%) were the highlighted subclass of 15 carbons sesquiterpenoidal compounds with (E)-caryophyllene (4.9%) and &beta;-cubebene (2.5%) as their principle representatives. Furthermore, menthyl acetate (C<sub>12</sub> acetylated monoterpene derived compound) was contained considerable amounts (5.2%) in the essential oil. In total, volatile oil composition of M. pulegium L. plants studied in the present experiment was characterised as a new menthone type with appreciable amounts of menthol and neomenthol, and it could be used as a potential source of these high value monoterpenes in pharmaceutical and food industries.

Investigation of the Essential Oil of Ormenis africana from Morocco: Revision of Chemical Composition and Antibacterial Activity

2021 ◽  
Vol 1 (30) ◽  
pp. 34-38
Author(s):  
El Hanbali F Barrero A.F
Keyword(s):  
Antibacterial Activity ◽  
Essential Oil ◽  
Essential Oil Composition ◽  
Proteus Vulgaris ◽  
Oil Composition ◽  
Gram Negative ◽  
Main Compound ◽  
Oxygenated Compounds ◽  
Aerial Parts

Abstract- The essential oil composition from the aerial parts of Ormenis africana (Asteraceae), an endemic species from Morocco, has been investigated by GC/MS. A total of 31 compounds were identified, representing 77%. After fractionation by column chromatography, the main compound was isolated and its structure elucidated by NMR spectroscopy. The essential oil was dominated by oxygenated compounds with spathulenol (45.8%) followed by camphor (7.1%), -cadinol (5.9%) and -bisabolol (5.9%) as the main compounds. This oil can be classified as spathulenol-type according to its spathulenol content. In vitro the antibacterial activity of the whole essential oil against three Gram positive (Bacillus cereus, Enterococcus faecalis, Streptococcus C) bacteria and three Gram negative (Proteus vulgaris, Escherichia coli, Pseudomonas aeroginosa) bacteria, showed significant results. Keywords: Asteraceae, Ormenis africana, Essential oil, Spathulenol, Antibacterial activity.

scholarly journals Variation of essential oil composition of Eucalyptus camaldulensis (myrtaceae) from the Montengero coastline

2010 ◽  
pp. 151-158 ◽  
Author(s):  
Slavenko Grbovic ◽  
Dejan Orcic ◽  
Maria Couladis ◽  
Emilija Jovin ◽  
Dusan Bugarin ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Eucalyptus Camaldulensis ◽  
Essential Oil Composition ◽  
Oil Yield ◽  
Oil Composition ◽  
Oxygenated Monoterpenes ◽  
Sesquiterpene Alcohol ◽  
Major Class ◽  
Leaf Essential Oil

In the current study the essential oil obtained from the leaves of Eucalyptus camaldulensis plants collected from five localities of the Montenegro coastline was analyzed. The oil yield varied from 0.63 % (Kotor) up to 1.59% (Tivat). The chemical composition of the leaf essential oil was analyzed using GC-MS technique. Monoterpene hydrocarbons were a major class of compounds. Among them, dominant compounds were p-cymene (17.38-28.60%), ?-phellandrene (12.35-14.47%) and ?-pinene (0.94-11.48%). The second largest group was oxygenated monoterpenes with cryptone (4.97-7.25) and terpinene-4-ol (2.75-4.21%) as predominant. Besides high content of sesquiterpene alcohol spathulenol (7.83-14.15%) was found. According to the results obtained E. camaldulensis from Montenegro can be classified in the chemotype with low 1,8-cineole and high p-cymene and cryptone ratio.

scholarly journals Leaf Essential Oil Composition of Five Species of Beilschmiedia from Monteverde, Costa Rica

2007 ◽  
Vol 2 (1) ◽  
pp. 1934578X0700200 ◽  
Author(s):  
William N. Setzer ◽  
William A. Haber
Keyword(s):  
Costa Rica ◽  
Essential Oil ◽  
Carbonyl Compounds ◽  
Essential Oil Composition ◽  
Chemical Compositions ◽  
Oil Composition ◽  
Germacrene D ◽  
Leaf Oil ◽  
Leaf Essential Oil ◽  
Cis And Trans

The leaf essential oils of five species of Beilschmiedia from Monteverde, Costa Rica (Beilschmiedia alloiophylla, B. brenesii, B. costaricensis, B. tilaranensis, and an undescribed Beilschmiedia species “chancho blanco”) have been obtained by hydrodistillation and analyzed by GC-MS in order to discern the differences and similarities between the volatile chemical compositions of these species. The principal constituents of B. alloiophylla leaf oil were germacrene D (18.9%), cis- and trans-β-ocimene (18.8% and 9.3%, respectively), α-pinene (11.8%), and bicyclogermacrene (9.1%). The leaf oil of B. brenesii was composed largely of the sesquiterpenes germacrene D (19.3%), β-caryophyllene (13.4%), α-copaene (9.0%), α-humulene (8.1%), and δ-cadinene (5.8%), and the carbonyl compounds 2-undecanone (12.8%), trans-2-hexenal (8.8%), and 2-tridecanone (3.8%). α-Bisabolol (72.1%) dominated the leaf oil of B. costaricensis, while B. tilaranensis had germacrene D (54.9%), β-caryophyllene (14.8%), and δ-cadinene (5.1%) as major components. Beilschmiedia “chancho blanco” leaf oil was composed largely of β-caryophyllene (16.6%), bicyclogermacrene (14.1%), and α-pinene (12.1%).

Sign in / Sign up

Export Citation Format

Share Document