scholarly journals Chemical Composition and Biological Activity of Essential Oils of Dracocephalum heterophyllum and Hyssopus officinalis from Western Himalaya

2015 ◽  
Vol 10 (1) ◽  
pp. 1934578X1501000 ◽  
Author(s):  
Iris Stappen ◽  
Jürgen Wanner ◽  
Nurhayat Tabanca ◽  
David E. Wedge ◽  
Abbas Ali ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Essential Oil ◽  
Essential Oils ◽  
Western Himalaya ◽  
Chemical Compositions ◽  
Main Compound ◽  
Dilution Assay ◽  
Agar Dilution ◽  
Main Components ◽  
Hyssopus Officinalis

The essential oils of two representatives of the Lamiaceae, Dracocephalum heterophyllum Benth. and Hyssopus officinalis L., are described for their antifungal, antibacterial, larvicidal and inect biting deterrent activities. Additionally, the chemical compositions of the essential oils, analyzed by simultaneous GC-MS and GC-FID, and odor descriptions are given. The main components of H. officinalis oil were pinocarvone, cis-pinocamphone, and β-pinene. Citronellol was found as the main compound of D. heterophyllum essential oil. Antibacterial testing by agar dilution assay revealed greater activity of D. heterophyllum against Staphylococcus aureus compared with H. officinalis. D. heterophyllum essential oil also showed promising antifungal activity against Colletotrichum species and was more toxic to Aedes aegypti larvae in a larvicial bioassay. Both essential oils showed high activity in the biting deterrent bioassay.

scholarly journals Chemical Composition and Biological Activity of Essential Oils from Wild Growing Aromatic Plant Species of Skimmia laureola and Juniperus macropoda from Western Himalaya

2015 ◽  
Vol 10 (6) ◽  
pp. 1934578X1501000
Author(s):  
Iris Stappen ◽  
Nurhayat Tabanca ◽  
Abbas Ali ◽  
David E. Wedge ◽  
Jürgen Wanner ◽  
...  
Keyword(s):  
Antifungal Activity ◽  
Essential Oil ◽  
Essential Oils ◽  
Plant Pathogens ◽  
Western Himalaya ◽  
Colletotrichum Acutatum ◽  
Chemical Compositions ◽  
Main Compound ◽  
Solvent Control ◽  
Main Components

The Himalayan region is very rich in a great variety of medicinal plants. In this investigation the essential oils of two selected species are described for their antimicrobial and larvicidal as well as biting deterrent activities. Additionally, the odors are characterized. Analyzed by simultaneous GC-MS and GC-FID, the essential oils’ chemical compositions are given. The main components of Skimmia laureola oil were linalool and linalyl acetate whereas sabinene was found as the main compound for Juniperus macropoda essential oil. Antibacterial testing by agar dilution assay revealed highest activity of S. laureola oil against all tested bacteria, followed by J. macropoda oil. Antifungal activity was evaluated against the strawberry anthracnose causing plant pathogens Colletotrichum acutatum, C. fragariae and C. gloeosporioides. Juniperus macropoda essential oil indicated higher antifungal activity against all three pathogens than S. laureola oil. Both essential oils showed biting deterrent activity above solvent control but low larvicidal activity.

The chemical composition, antimicrobial, and antioxidant activities of Pycnocycla spinosa and Pycnocyla flabellifolia essential oils

2016 ◽  
Vol 71 (11-12) ◽  
pp. 403-408 ◽  
Author(s):  
Mohaddese Mahboubi ◽  
Elaheh Mahdizadeh ◽  
Rezvan Heidary Tabar
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Antioxidant Activities ◽  
Inhibition Zone ◽  
Chemical Compositions ◽  
Caryophyllene Oxide ◽  
Aerial Parts ◽  
Dilution Assay ◽  
Main Components ◽  
Broth Dilution

Abstract The purpose of our study was to compare the chemical compositions and antimicrobial and antioxidant activities of Pycnocycla spinosa and Pycnocycla flabellifolia essential oils. cis-Asarone (62.5%) and widdra-2,4(14)-diene (9%) were the main components of P. spinosa aerial part essential oil, while elemicin (60.1%) and caryophyllene oxide (9.8%) were the main components of P. spinosa seed essential oil. α-Phellandrene (25.5%), p-cymene (15.3%), and limonene (13.3%) were found in P. flabellifolia essential oil. The inhibition zone diameters for P. flabellifolia essential oil were significantly higher than for the two other essential oils from P. spinosa (p<0.05). In broth dilution assay (µL/mL), the sensitive microorganism to Pycnocycla sp. (P. spinosa, P. flabellifolia) was Aspergillus niger, followed by Candida albicans. In 2,2-diphenyl-1-picrylhydrazyl (DPPH) system, P. spinosa aerial parts essential oil (IC50=548 µg/mL) had higher antioxidant activity than that of two other essential oils.

scholarly journals Biological Activity of Bunium persicum Essential Oil from Western Himalaya

2017 ◽  
Vol 4 (02) ◽  
pp. e52-e58
Author(s):  
Iris Stappen ◽  
Nurhayat Tabanca ◽  
Abbas Ali ◽  
David Wedge ◽  
Jürgen Wanner ◽  
...  
Keyword(s):  
Antifungal Activity ◽  
Essential Oil ◽  
Western Himalaya ◽  
Cold Desert ◽  
Dilution Assay ◽  
Bunium Persicum ◽  
Solvent Control ◽  
Strawberry Anthracnose ◽  
Agar Dilution ◽  
Low Activity

AbstractThe essential oil of Bunium persicum collected from cultivated sources in the cold desert area of Lahaul-Spiti is described for its antimicrobial, larvicidal, and biting deterrent activities. Additionally, odor characterization is given. The chemical composition of the essential oil was analyzed by simultaneous GC-MS and GC-FID. γ-Terpinene and p-cymene were found to be the major compounds. Antibacterial testing by an agar dilution assay revealed low activity of the oil against all tested bacteria. Antifungal activity was evaluated against Candida albicans as well as three species of the strawberry anthracnose causing plant pathogen Colletotrichum. Bunium persicum essential oil demonstrated antifungal activity against all four pathogens. Biting deterrent activity against Aedes aegypti was greater than the solvent control, but significantly lower than DEET. The essential oil of B. persicum exhibited larvicidal activity with an LC50 value of 58.6 ppm against Ae. aegypti larvae.

scholarly journals ANTIBACTERIAL ACTIVITY OF AGASTACHE AURANTIACA ESSENTIAL OILS

2017 ◽  
pp. 63-70 ◽  
Author(s):  
Наталья (Natal'ja) Александровна (Aleksandrovna) Коваленко (Kovalenko) ◽  
Галина (Galina) Николаевна (Nikolaevna) Супиченко (Supichenko) ◽  
Татьяна (Tat'jana) Игоревна (Igorevna) Ахрамович (Ahramovich) ◽  
Анна (Anna) Геннадьевна (Gennad'evna) Шутова (Shutova) ◽  
Виктор (Viktor) Николаевич (Nikolaevich) Леонтьев (Leontiev)
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Essential Oil ◽  
Essential Oils ◽  
Antibacterial Properties ◽  
Gas Liquid Chromatography ◽  
Oil Components ◽  
The Republic ◽  
Main Components

The essential oil obtained by hydrodistillation method from plants of three varieties Agastache aurantiaca, cultivated on the Republic of Belarus were investigated. Some morphobiometric parameters of plants 'Tango', 'Apricot Sprite' and 'Fragrant Delight' and oil yields were determined. Using the technique of gas-liquid chromatography essential oil components were identified and determined. The main components of the essential oil from 'Tango' and 'Fragrant Delight' plants were menton (~ 53 and ~ 65 v/v % respectively) and pulegon (~ 36 and ~ 25 v/v % respectively). The samples of 'Apricot' Sprite' essential oil were rich in isomentone (~ 46 v/v %) and pulegon (~ 41 v/v %). All tested essential oils contained (+)-menton and (+)-pulegon enantiomeric forms only. The antibacterial activity of dimethylsulfoxide and ethanolic essential oil solutions against Staphylococcus aureus, Salmonella alony, Bacillus subtilis, Clostridium sp., Escherichia coli Hfr H, Pseudomonas aeruginosa was proved. Ethanol solutions of essential oils at the concentrations 0.001–0.1 v/v % had significant bactericidal activity. A correlation between the composition of the essential oil and their antibacterial properties was established.

scholarly journals Essential Oil ofBetula pendulaRoth. Buds

2004 ◽  
Vol 1 (3) ◽  
pp. 301-303 ◽  
Author(s):  
Betül Demirci ◽  
Dietrich H. Paper ◽  
Fatih Demirci ◽  
K. Hüsnü Can Başer ◽  
Gerhard Franz
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Essential Oil ◽  
Essential Oils ◽  
Betula Pendula ◽  
Gas Chromatography Mass Spectrometry ◽  
Chemical Compositions ◽  
Chromatography Mass Spectrometry ◽  
Germacrene D ◽  
Main Components

The essential oil ofBetula pendulaRoth. buds was obtained using both hydrodistillation and microdistillation techniques and their chemical compositions were analyzed using both gas chromatography (GC) and gas chromatography–mass spectrometry (GC-MS). Overall, more than 50 compounds were identified representing 80% and 92% for hydrodistillation and microdistillation, respectively. The main components (by hydrodistillation and microdistillation, respectively) found were α-copaene (12% and 10%), germacrene D (11% and 18%) and δ-cadinene (11% and 15%) in the analyzed essential oils. The microdistillation technique proved to be a useful tool and compliant alternative when compared to hydrodistillation.

scholarly journals Essential Oils from the Aerial Part and Rhizome of Amomummuricarpum Elmer and Their Antimicrobial Activity

2021 ◽  
Vol 11 (1) ◽  
pp. 3322-3328
Keyword(s):  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Aspergillus Niger ◽  
Medicinal Plant ◽  
Essential Oils ◽  
Filamentous Fungus ◽  
Aerial Part ◽  
Chemical Compositions ◽  
Main Compound ◽  
New Information

Chemical compositions in essential oils of Amomum muricarpum Elmer were determined using GC-MS/GC-FID. In the hydro-distilled oils of aerial part and rhizome, twenty-eight and thirty-three constituents were identified, accounting for 98.73 and 97.88%, respectively. A. muricarpum essential oils were associated with the presence of monoterpenes, sesquiterpenes, and their oxygenated types. Monoterpenes (> 80.00%) were major compounds, in which the main compound α-pinene reached the highest percentage of 62.94-74.97%. A. muricarpum essential oils showed antimicrobial activity against the positive Gram bacterium Staphylococcus aureus and filamentous fungus Aspergillus niger with the respective MIC values of 400 and 100 µg/mL. This study provides new information that Vietnamese medicinal plant A. muricarpum are a rich resource of monoterpene α-pinene.

scholarly journals Variability of Chemical Compositions and Antimicrobial and Antioxidant Activities of Ruta chalepensis Leaf Essential Oils from Three Palestinian Regions

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Nidal Jaradat ◽  
Lina Adwan ◽  
Shadi K’aibni ◽  
Abdel Naser Zaid ◽  
Munqez J. Y. Shtaya ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Essential Oil ◽  
Essential Oils ◽  
Inhibitory Concentration ◽  
Antioxidant Activities ◽  
Radical Scavenging ◽  
Antimicrobial Properties ◽  
Antibacterial Activities ◽  
Chemical Compositions ◽  
Ruta Chalepensis

Introduction. Interest in essential oils was recently revived with their popularity increasing in medicine, pharmacy, and aromatherapy. This study was performed to identify the chemical compositions of the essential oil of Ruta chalepensis growing wildly in three regions in Palestine and to assess and compare their antimicrobial and antioxidant activities. Methods. Identification of the essential oil was performed by gas chromatography coupled with mass spectrometry (GC-MS). Antimicrobial activity was tested against Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Methicillin-Resistant Staphylococcus aureus, and Candida albicans by using minimum inhibitory concentration (MIC) assay, while antioxidant activity was analyzed by using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging method. Results. The essential oils of R. chalepensis from Jerusalem and Hebron regions have almost identical components; the major compounds identified were linalyl acetate and β-linalool; these essential oils exerted potential antioxidant and antibacterial activities. On the other hand, the major components of the plant essential oil from Jenin region were 2-undecanone and 2-nonanone, which exhibited potential antifungal activity. Conclusions. The phytoconstituents and antioxidant and antimicrobial properties of the essential oil of R. chalepensis from different regions in Palestine were established in this study. The obtained results indicate possible applications for R. chalepensis in the treatment of various infectious and noninfectious diseases.

Chemical Compositions of the Essential Oils and Headspace Volatiles of Seseli peucedanoides Plant Parts

2019 ◽  
Vol 14 (5) ◽  
pp. 1934578X1985069
Author(s):  
Goran M. Petrović ◽  
Jelena G. Stamenković ◽  
Olga P. Jovanović ◽  
Gordana S. Stojanović
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Chemical Compositions ◽  
Static Headspace ◽  
Headspace Volatiles ◽  
Plant Parts ◽  
Major Class ◽  
Germacrene D ◽  
Leaf Essential Oil ◽  
Main Components

The chemical compositions of the essential oils of Seseli peucedanoides (M.Bieb.) Koso-Pol. inflorescences and leaves, isolated by hydrodistillation, and headspace volatiles, obtained by the static headspace method, were analyzed in detail by gas chromatography (GC) and GC/mass spectrometry (MS). In total, 74 constituents were identified, representing more than 98% of the observed GC peaks. The number of identified essential oil components obtained from the inflorescences was 63 while for the leaf essential oil it was 46. A much smaller number of compounds, 26 for inflorescences and 21 for leaves, were detected in the headspace samples. In both essential oils the most abundant compounds were the same, ( E)-caryophyllene and germacrene D, only in different proportions. The main components in the headspace specimens were α-pinene and ( E)-β-ocimene with ( E)-caryophyllene and ( Z)-3-hexen-1-ol also determined in significant percentages. The major class of compounds identified in the investigated essential oils was hydrocarbon sesquiterpenes with a share of over 80%, while the most dominant class of the headspace volatiles was hydrocarbon monoterpenes, which contribute slightly less than 80% of the total.

scholarly journals Antifungal and repellent activities of the essential oils from three aromatic herbs from western Himalaya

2018 ◽  
Vol 16 (1) ◽  
pp. 306-316 ◽  
Author(s):  
Iris Stappen ◽  
Nurhayat Tabanca ◽  
Abbas Ali ◽  
Jürgen Wanner ◽  
Brij Lal ◽  
...  
Keyword(s):  
Essential Oils ◽  
Local Population ◽  
Western Himalaya ◽  
Positive Control ◽  
Chemical Compositions ◽  
Aromatic Plants ◽  
Zanthoxylum Armatum ◽  
Western Himalayan Region ◽  
Strawberry Anthracnose ◽  
Main Components

AbstractIn this investigation we examined the essential oils of three aromatic plants, Zanthoxylum armatum, Juniperus communis, and Dysphania ambrosioides, which are used by the local population of the western Himalayan region for medicinal purposes. These plants were studied for their antifungal, larvicidal and biting deterrent activities. Additionally, chemical compositions of the oils were determined by GC-MS and their odor evaluated. The main compounds were 2-undecanone (47.7%) and 1,8-cineol (20.5%) from Z. armatum and α-pinene (43.2%) and limonene (34.7%) from J. communis. p-Cymene (36.3%) and ascardiole (31.2%) were found as the main components of D. ambrosioides essential oil. Antifungal activity was evaluated against three Colletotrichum species. Dyspania ambrosioides oil showed the best activity against these strawberry anthracnose causing fungi. It also demonstrated biting deterrent activity against Aedes aegypti similar to DEET as positive control, whereas Z. armatum and J. communis were less effective against Colletotrichum and mosquitoes.

scholarly journals Chemical Composition of the Essential Oil of the Local Endemics Centaurea davidovii and C. parilica (Asteraceae, sect. Lepteranthus) from Bulgaria

2014 ◽  
Vol 9 (9) ◽  
pp. 1934578X1400900
Author(s):  
Antonella Maggio ◽  
Luana Riccobono ◽  
Svetlana Bancheva ◽  
Maurizio Bruno ◽  
Felice Senatore
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Octadecadienoic Acid ◽  
Chemical Compositions ◽  
Caryophyllene Oxide ◽  
Pca Analysis ◽  
Hexadecanoic Acid ◽  
Aerial Parts ◽  
Main Components

In the present study the chemical compositions of the essential oils from aerial parts of Centaurea davidovii Urum. and C. parilica Stoj. & Stef., both endemic to Bulgaria, were evaluated by GC and GC-MS. The main components of C. davidovii were β-eudesmol (13.9%), spathulenol (13.3%), caryophyllene oxide (10.1%) and ( Z)-phytol (5.4%). The main components of C parilica were hexadecanoic acid (39.2%), ( Z, Z)-9,12-octadecadienoic acid (11.9%), caryophyllene oxide (6.8%) and spathulenol (6.6%). In order to compare the essential oils composition of these taxa and of related species a PCA analysis was carried out.

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