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 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.

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 Antifungal Activity of Aromatic Plants of the Lamiaceae Family in Bread

Foods ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1642
Author(s):  
Adriana Skendi ◽  
Dimitrios Ν. Katsantonis ◽  
Paschalina Chatzopoulou ◽  
Maria Irakli ◽  
Maria Papageorgiou
Keyword(s):  
Essential Oils ◽  
Antimicrobial Properties ◽  
Phytopathogenic Fungi ◽  
Aromatic Plants ◽  
Inhibitory Effects ◽  
Antifungal Effect ◽  
Aerial Parts ◽  
Gas And Liquid Chromatography ◽  
Main Components

The antifungal effect of aromatic plants (oregano, thyme, and Satureja) in dry form and as essential oils was evaluated in vitro (in potato dextrose agar (PDA)) and in bread against two phytopathogenic fungi found in food (Aspergillusniger and Penicillium). Gas and liquid chromatography were used to analyze essential oils attained by hydrodistillation of the aerial parts of the aromatic plants and of the dried plant aqueous solutions that were autoclaved for 20 min at 121 °C before analysis. Carvacrol, α-pinene, p-cymene, and γ-terpinene were the main components of the essential oils, whereas carvacrol, rosmarinic and caffeic acids were the main components of the water extracts. In vitro antifungal test results showed that the addition of plants in dry form had great antifungal potential against both fungal strains studied. Penicillium was more sensitive to the presence of aromatic plants than Aspergillus. Among the three plant species tested, thyme was the most potent antifungal against both fungi. For the bread product, all three aromatic plants studied showed inhibitory effects against both fungi. Results presented here suggest that oregano, thyme and Satureja incorporated in a bread recipe possess antimicrobial properties and are a potential source of antimicrobial ingredients for the food industry.

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.

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.

Chemical compositions and antibacterial activities of five selected aromatic plants essential oils against food-borne pathogens and spoilage bacteria

2015 ◽  
Vol 28 (3) ◽  
pp. 241-251 ◽  
Author(s):  
Marzieh Moosavi-Nasab ◽  
Mohammad Jamal Saharkhiz ◽  
Esmaeil Ziaee ◽  
Fatemeh Moayedi ◽  
Roya Koshani ◽  
...  
Keyword(s):  
Essential Oils ◽  
Antibacterial Activities ◽  
Chemical Compositions ◽  
Aromatic Plants ◽  
Food Borne Pathogens ◽  
Food Borne ◽  
Spoilage Bacteria

Seasonal Variations in the Chemical Compositions of Essential Oils of Selected Aromatic Plants Growing Wild in Turkey

1997 ◽  
Vol 45 (12) ◽  
pp. 4821-4825 ◽  
Author(s):  
Frank J. Müller-Riebau ◽  
Bernhard M. Berger ◽  
Oktay Yegen ◽  
C. Cakir
Keyword(s):  
Essential Oils ◽  
Seasonal Variations ◽  
Chemical Compositions ◽  
Aromatic Plants

scholarly journals Chemical Composition and Antimicrobial Activity of the Essential Oils of Lavandula Stoechas L. Ssp. Stoechas Growing Wild in Turkey

2009 ◽  
Vol 4 (7) ◽  
pp. 1934578X0900400 ◽  
Author(s):  
Hasan Kırmızıbekmez ◽  
Betül Demirci ◽  
Erdem Yeşilada ◽  
K. Hüsnü Can Başer ◽  
Fatih Demirci
Keyword(s):  
Essential Oils ◽  
Methicillin Resistant Staphylococcus Aureus ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Chemical Compositions ◽  
Pathogenic Microorganisms ◽  
Dpph Assay ◽  
Lavandula Stoechas ◽  
Leaf Oil ◽  
Main Components

The chemical compositions of the essential oils obtained by hydrodistillation from the dried leaves and flowers of Lavandula stoechas L. ssp. stoechas were separately identified by GC-FID and GCMS analyses. The main components were α-fenchone (41.9±1.2%), 1,8-cineole (15.6±0.8%), camphor (12.1±0.5%), and viridiflorol (4.1±0.4%) in the leaves; and α-fenchone (39.2±0.9%), myrtenyl acetate (9.5±0.4%), α-pinene (6.1±0.09%), camphor (5.9±0.05%) and 1,8-cineole (3.8±0.1%) in the flowers. Overall, 55 and 66 constituents were identified in the leaf and flower essential oils representing more than 90% and 94% of the total, respectively. In addition, the essential oils were evaluated for their antibacterial and anticandidal activities by broth microdilution. The flower essential oil was found to be relatively more active than the leaf oil towards the tested pathogenic microorganisms. Methicillin-resistant Staphylococcus aureus was more susceptible to the flower oil (MIC= 31.2 μg/mL). The oils, evaluated for their free radical scavenging activity using a TLC-DPPH assay, were inactive at a concentration of 2 mg/mL.

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 Chemical Characterisation and Biological Effects of Essential Oils of Four Gabonese Medicinal Plants

2021 ◽  
pp. 52-60
Author(s):  
Elvis Jolinom Mbot ◽  
Cédric Sima Obiang ◽  
Maximilienne Ascenssion Nyegue ◽  
Bill Raphaël Bikanga ◽  
Huguette Agnaniet ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Medicinal Plants ◽  
Essential Oils ◽  
Biological Effects ◽  
Antibacterial Activities ◽  
Chemical Compositions ◽  
Aromatic Plants ◽  
Bacterial Strains

Aims: The objective of this work is to determine the chemical composition and in vitro evaluation of the antibacterial activities of essential oils of four species of aromatic plants of Gabonese origin obtained by hydrodistillation. Methods: All the samples were examined by chromatographic analyzes and by GC / MS coupling. Antimicrobial activity was assessed by diffusion and microdilution methods. Results: The most common compounds found in essential oils were terpene hydrocarbons and oxygenates. The major constituents are β-phellandrene (56.3%), β-pinene (11%) and myrcene (10.4%). The three bacterial strains used are sensitive to essential oils. However, some essential oils stood out with greater spectra of action compared to others, such as Maranthes gabunensis and Mammea africana which showed activity against all strains. The inhibition parameters (MIC and CMB) are between 0.78 and 25 mg / mL. Some oils have shown bacteriostatic and / or bactericidal activity on the targeted strains. Conclusion: The essential oils studied present a diversity of chemical compositions and good antibacterial activities.

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