scholarly journals Chemical Composition of the Essential Oil from Nepeta macrosiphon Boiss. Growing Wild in Iran by Different Extraction Methods and Studies on the Quantitative Relationship Between the Retention Indices of Essential Oils and their Molecular Structures

2013 ◽  
Vol 25 (8) ◽  
pp. 4741-4746
Author(s):  
Parviz Aberoomand Azar ◽  
Karim Zare ◽  
Mohammad Saber-Tehrani ◽  
Azizolah Jafari Kokhedan ◽  
Azam Vafaei ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Quantitative Relationship ◽  
Extraction Methods ◽  
Retention Indices ◽  
Molecular Structures

scholarly journals Chemical Composition and Antibacterial Activity of the Essential Oil of Baccharis latifolia Pers. and B. Prunifolia H. B. &K. (Asteraceae)

2007 ◽  
Vol 2 (12) ◽  
pp. 1934578X0700201 ◽  
Author(s):  
Janne Rojas ◽  
Judith Velasco ◽  
Luis B. Rojas ◽  
Tulia Díaz ◽  
Juan Carmona ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Enterococcus Faecalis ◽  
Mass Spectra ◽  
Retention Indices ◽  
Gram Positive ◽  
Gram Positive Bacteria

The essential oils from leaves of Baccharis latifolia and B. prunifolia collected in January 2006 were analyzed by GC/MS. The yields of oils extracted by hydrodistillation were 0.27 and 0.29% for B. latifolia and B. prunifolia, respectively. Sixteen (B. latifolia) and twenty nine (B. prunifolia) components were identified by comparison of their mass spectra with the Wiley GC-MS Library data and by their retention indices (RI). The identified products may be divided into four different groups: monoterpenes (9.0% B. latifolia; 43.9% B. prunifolia), oxygenated monoterpenes (0.8% B. latifolia; 5.4% B. prunifolia), sesquiterpenes (20.4% B. latifolia; 45.9% B. prunifolia) and oxygenated sesquiterpenes (69.8% B. latifolia; 1.9% B. prunifolia). The oils showed antibacterial activity only against Gram positive bacteria, with MIC values for Staphylococcus aureus (ATCC 25923) of 80 μg/mL (B. latifolia) and Enterococcus faecalis (ATCC 29212) of 90 μg/mL and 260 μg/mL (B latifolia and B. prunifolia, respectively).

scholarly journals Essential Oil Profile of Vietnamese Callicarpa candicans (Burm. f.) Hochr

2020 ◽  
Vol 32 (7) ◽  
pp. 1630-1634
Author(s):  
Vu Thi Thu Le Vu Thi Thu Le ◽  
Lai Phuong Phuong Thao ◽  
Pham Thi Hong Minh ◽  
Hoang Thi Bich ◽  
Do Tien Lam ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Retention Indices ◽  
Chemical Compositions ◽  
Oil Performance

In this study, the essential oil profile of Callicarpa candicans (Burm. f.) Hochr was presented. Samples were collected from Vietnam and the oils were extracted from fresh leaves and dry leaves by hydrodistillation method. GC-MS data and retention indices were used to identify the chemical composition. The essential oil performance achieved 0.263% for fresh leaves and 1.503% for dry leaves. A total of 47 components were identified from fresh leaves oil and 39 constituents from dry leaves oil. Chemical compositions of the two essential oils were similar, with the major components being α-gurjunene, δ-cadinene, ε-caryophyllene (β-caryophyllene) and α-selinene.

scholarly journals Chemical Composition of Essential Oils of Grindelia squarrosa and G. hirsutula

2014 ◽  
Vol 9 (4) ◽  
pp. 1934578X1400900
Author(s):  
Katalin Veres ◽  
Orsolya Roza ◽  
Eszter Laczkó-Zöld ◽  
Judit Hohmann
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Retention Indices ◽  
Bornyl Acetate ◽  
Germacrene D ◽  
Computer Library

The essential oils of Grindelia squarrosa (Pursh) Dunal and G. hirsutula Hook. & Arn. cultivated in Romania were isolated by hydrodistillation. The essential oils were analyzed by a combination of GC-FID and GC-MS. The identification of the constituents was achieved from their retention indices and comparison of their MS data with computer library database and literature data. The fifty-six identified constituents accounted for 72.1-81.3% of the oils. The oils were found to contain α-pinene, β-pinene, limonene, borneol, bornyl acetate and germacrene D as main constituents. The oils obtained from the two species showed small differences in chemical composition. However, menthol, menthone and pulegone were detected only in the essential oil of G. hirsutula.

scholarly journals Chemical composition of Rhododendron aureum (Gold rosebay) essential oil from Pribaikal'e (Russian Federation)

2010 ◽  
Vol 75 (2) ◽  
pp. 209-215 ◽  
Author(s):  
Daniil Olennikov ◽  
Lubov' Dudareva ◽  
Semion Osipenko ◽  
Tat'yana Penzina
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Russian Federation ◽  
Mass Spectra ◽  
Retention Indices ◽  
Chromatographic Retention ◽  
Irkutsk Region ◽  
Chromatographic Retention Indices ◽  
Rhododendron Aureum

The essential oils from five samples of leaves of Rhododendron aureum from the Irkutsk region, Pribaikal'e, Russian Federation, were isolated by hydrodistillation and analyzed by a combination of GC and GC/MS. Compounds representing 70.5-78.3 % of the oils were identified. Twenty-seven compounds were identified according to their chromatographic retention indices and mass spectra. The major components of the oils were calarene (10.4- -66.4 %), ?-bourbonene (0.5-27.4 %), ?-selinene (2.1-8.0 %) and kaur-16-ene (2.0-6.3 %). It was found that the chemical composition of Rh. aureum essential oil depends on the altitude of the growing plants.

scholarly journals Application and limitation of molecular data and essential oil content in identification of Leutea elbursensis Mozaff in northern Iran

2018 ◽  
Vol 0 (0) ◽  
Author(s):  
Samane-Sadat Emami-Tabatabaei ◽  
Kambiz Larijani ◽  
Iraj Mehregan
Keyword(s):  
Chemical Composition ◽  
Genetic Structure ◽  
Essential Oil ◽  
Essential Oils ◽  
Distinct Species ◽  
Molecular Data ◽  
Retention Indices ◽  
Aflp Analysis ◽  
Northern Iran ◽  
Genetic Clusters

Abstract In this paper, the internal transcribed spacer (ITS) sequences, genetic structure and the chemical composition of essential oils of four populations belonging to Leutea elbursensis and Leutea petiolaris, two species endemic to northern Iran, are analyzed. Phylogenetic analysis based on the ITS data showed that all accessions of L. elbursensis formed a monophyletic clade, and L. elbursensis was a sister to the rest of Leutea species. Results of amplified fragment length polymorphism (AFLP) analysis performed on the total genome showed that all individuals presented in the study belonged to two different genetic clusters. The individuals belong to L. petiolaris had a different genetic structure and yielded no traceable amount of essential oils. The essential oil obtained from the ripe fruits of L. elbursensis yielded 0.5–0.6% of volatile essential oils. In total, 15-29 volatile natural components were identified on the basis of their mass spectra characteristics and retention indices, in which α-pinene (33.18-43.22%), β-pinene (32.4-40.9%) were the major constituents. Our results indicate that L. elbursensis is a distinct species, segregated from the other species based on morphology, ITS data and AFLP profile. In addition, despite the relatively uniform genetic structure of L. elbursensis, the chemical composition of essential oil could be highly affected by different factors.

scholarly journals Combined Analysis by GC (RI), GC/MS and 13C NMR Spectroscopy of Elsholtzia blanda, E. penduliflora and E. winitiana Essential Oils

2007 ◽  
Vol 2 (8) ◽  
pp. 1934578X0700200 ◽  
Author(s):  
Dominique Lesueur ◽  
Ange Bighelli ◽  
Nguyen Thi Tam ◽  
Nguyen Viet Than ◽  
Pham thi Kim Dung ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Nmr Spectroscopy ◽  
Essential Oil ◽  
Essential Oils ◽  
13C Nmr ◽  
13C Nmr Spectroscopy ◽  
Retention Indices ◽  
Aerial Parts ◽  
Two Samples ◽  
C Nmr

The chemical composition of six oil samples, isolated from aerial parts of Elsholtzia blanda, E. penduliflora and E. winitiana, harvested in two provinces of Vietnam, was investigated by GC, in combination with retention indices (RI), GC/MS and 13C NMR spectroscopy. Linalool was the major component (75.2 and 56.8%) of the two samples of E. blanda essential oil, whereas the two oil samples from E. penduliflora were dominated by 1,8-cineole (62.7 and 65.5%). Conversely, the two oil samples of E. winitiana exhibited different compositions, rosefuran (56.0%) and dehydroelsholtzia ketone (22.8%) being the major components of one sample, whilst the second sample was dominated by elsholtzia ketone (87.5%).

scholarly journals Chemical Composition of the Essential Oil of Leaves and Roots of Ottoa oenanthoides (Apiaceae) from Mérida, Venezuela

2010 ◽  
Vol 5 (7) ◽  
pp. 1934578X1000500 ◽  
Author(s):  
Janne Rojas ◽  
Alexis Buitrago ◽  
Luis B. Rojas ◽  
Antonio Morales ◽  
Shirley Baldovino
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Mass Spectra ◽  
Retention Indices ◽  
Naphthalene Derivatives ◽  
Leaves And Roots ◽  
First Time

Essential oils extracted by hydrodistillation from leaves and roots of Ottoa oenanthoides Kunth (Apiaceae) were analyzed by GC/MS. The oils, obtained in yields of 0.10% and 0.66%, respectively, each contained four compounds, which were identified from their mass spectra and retention indices (RI). The major compound identified was 2-methoxy-8-methyl-1,4-naphthalindione (59.9% leaves, and 62.8%, roots), followed by 7-methoxy-1-naphthol (18.3% leaves and 17.3% roots), 2-naphthalenol (18.6% leaves and 15.0% roots), and 3-methoxy-2-naphthalenol (3.1% leaves and 2.1% roots). To the best of our knowledge, this is the first time that naphthalene derivatives have been reported for any species of the Apiaceae family.

The effect of different extraction methods on chemical composition profile and pharmacological activities of essential oils and hydrosols

Planta Medica ◽  
2016 ◽  
Vol 81 (S 01) ◽  
pp. S1-S381
Author(s):  
F Ghavidel ◽  
MM Zarshenas ◽  
A Sakhteman ◽  
A Gholami ◽  
Y Ghasemi ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oils ◽  
Extraction Methods ◽  
Composition Profile ◽  
Pharmacological Activities

Chemical Composition and Antibacterial Activity of Essential Oils of Three Medicinal Plants from Algerian Semi-Arid Climatic Zone

2018 ◽  
Vol 16 (S1) ◽  
pp. S155-S163 ◽  
Author(s):  
S. Mehalaine ◽  
O. Belfadel ◽  
T. Menasria ◽  
A. Messaili
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Antibacterial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Rosmarinus Officinalis ◽  
Salvia Officinalis ◽  
Thymus Algeriensis

The present study was carried out to determine, for the first time, the chemical composition and antibacterial activity of essential oils derived from the aerial parts of three aromatic plants Thymus algeriensis Boiss & Reut, Rosmarinus officinalis L., and Salvia officinalis L. growing under semiarid conditions. The essential oils were chemically analyzed and identified by gas chromatography (GC) and GC/ mass spectrometry (GC/MS) and their antimicrobial activity was individually evaluated against Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa using both agar disk diffusion and agar dilution methods. The major constituents of Thymus algeriensis essential oil were identified as camphor (13.62%), 1,8-cineol (6.00%), borneol (5.74%), viridiflorol (4.00%), and linalool (3.93%). For Rosmarinus officinalis essential oil, 48 compounds were characterized, of which the main constituents were camphor (17.09%), Z-β-ocimene (10.88%), isoborneol (9.68%), α-bisabolol (7.89%), and borneol (5.11%). While, Salvia officinalis essential oil was characterized by β-thujone (16.44%), followed by viridiflorol (10.93%), camphor (8.99%), 1,8-cineol (8.11%), trans-caryophyllene (5.85%), and α-humulene (4.69%) as the major components. Notably, results from antibacterial screening indicated that Thymus algeriensis and Salvia officinalis essential oils exhibited a strong inhibitory effect against both Escherichia coli and Staphylococcus aureus compared to Rosmarinus officinalis essential oil. Further, less activity was recorded against Pseudomonas aeruginosa for the three tested essential oils.

Chemical Composition, Antibacterial, Insecticidal and Anti-Oxidant Activities of Three Acantholimon Species (A. atropatanum, A. gilliatii and A. tragacanthium)

2020 ◽  
Vol 10 (3) ◽  
pp. 272-278
Author(s):  
Ardalan Pasdaran ◽  
Satyajit D. Sarker ◽  
Lutfun Nahar ◽  
Azadeh Hamedi
Keyword(s):  
Antibacterial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Main Compound ◽  
Aerial Parts ◽  
Anti Oxidant ◽  
Gas Chromatography Mass Spectroscopy

Background: The essential oil from the Acantholimon genus have been an integral part of the traditional food additive in Middle East. Most of the plants in Acantholimon genus have not been studied scientifically. The aim of this study is to investigate the chemical composition, antibacterial, insecticidal and anti-oxidant activities of three Acantholimon species including Acantholimon atropatanum, A. gilliatii and A. tragacanthium. Method: The essential oils of the aerial parts were extracted by hydrodistillation. Chemical constitutions were identified by gas chromatography- mass spectroscopy technique, also their toxicities were assessed against the two important grain products pests, Oryzeaphilus mercator and Tribolium castaneum. Antibacterial activity was assessed against the three foodborne bacteria that include Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus based on the disc diffusion assay. Free-radical-scavenging property was identified based on 1, 1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity. Results: 2-hexahydrofarnesyl acetone was the main compound in A. gilliatii and A. tragacanthium, whilst farnesyl acetone, heptacosane and germacrene D were the principal components of A. atropatanum essential oil. These oils exhibited 40-90% mortality of O. mercator and/or T. castaneum at a dose of 12 μl/l air after 48h of exposure, and exhibited significant free-radicalscavenging property (RC50 = 3.7 × 10-3 - 8.3 × 10-3 mg/ml). The oils of A. tragacanthium and A. gilliatii showed a weaker antibacterial activity compared to A. atropatanum. Conclusion: A. atropatanum, A. gilliatii and A. tragacanthium essential oils had significant insecticidal and anti-oxidant properties. They also showed week to moderate antibacterial activity against P. aeruginosa and S. aureus.

Sign in / Sign up

Export Citation Format

Share Document