scholarly journals Chemical Composition and Biological Effects of Artemisia maritima and Artemisia nilagirica Essential Oils from Wild Plants of Western Himalaya

Planta Medica ◽  
2014 ◽  
Vol 80 (13) ◽  
pp. E2-E2 ◽  
Author(s):  
Iris Stappen ◽  
Jürgen Wanner ◽  
Nurhayat Tabanca ◽  
David Wedge ◽  
Abbas Ali ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oils ◽  
Biological Effects ◽  
Western Himalaya ◽  
Wild Plants ◽  
Artemisia Nilagirica ◽  
Artemisia Maritima

Chemical Composition and Biological Effects of Artemisia maritima and Artemisia nilagirica Essential Oils from Wild Plants of Western Himalaya

Planta Medica ◽  
2014 ◽  
Vol 80 (13) ◽  
pp. 1079-1087 ◽  
Author(s):  
Iris Stappen ◽  
Jürgen Wanner ◽  
Nurhayat Tabanca ◽  
David Wedge ◽  
Abbas Ali ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oils ◽  
Biological Effects ◽  
Western Himalaya ◽  
Wild Plants ◽  
Artemisia Nilagirica ◽  
Artemisia Maritima

Chemical composition and biological effects of essential oils from Artemisia absinthium L. cultivated under different environmental conditions

2013 ◽  
Vol 49 ◽  
pp. 102-107 ◽  
Author(s):  
Maria Bailen ◽  
Luis F. Julio ◽  
Carmen E. Diaz ◽  
Jesus Sanz ◽  
Rafael A. Martínez-Díaz ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oils ◽  
Environmental Conditions ◽  
Biological Effects ◽  
Artemisia Absinthium

A review on Moroccan Thymus species: traditional uses, essential oils chemical composition and biological effects

2021 ◽  
pp. 114205
Author(s):  
Mohamed EL YAAGOUBI ◽  
Hicham MECHQOQ ◽  
Abdellah EL HAMDAOUI ◽  
Venugopal JRV MUKKU ◽  
Abdelhamid EL MOUSADIK ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oils ◽  
Biological Effects ◽  
Traditional Uses

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.

Variation in Volatiles of Astragalus gombiformis Pomel

2011 ◽  
Vol 66 (1-2) ◽  
pp. 1-6
Author(s):  
Hassen Teyeb ◽  
Sami Zouari ◽  
Wahiba Douki ◽  
Mohamed Fadhel Najjar ◽  
Mohamed Neffati
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oils ◽  
Natural Compounds ◽  
Complex Mixtures ◽  
Wild Plants ◽  
Stages Of Development ◽  
Phenological Stages ◽  
Aerial Parts

The essential oils obtained by hydrodistillation (Clevenger apparatus) from aerial parts of Astragalus gombiformis were analysed by gas chromatography coupled with mass spectrometry (GC/MS). This study showed that the A. gombiformis essential oils are complex mixtures of important natural compounds, which varied qualitatively and quantitatively between cultivated and wild plants and between phenological stages of development. All analysed oils are characterized by the constant presence of phytol, 6,10,14-trimethyl-2-pentadecanone, 4-terpineol, and γ-terpinene. This study is the fi rst report on the chemical composition of essential oils from A. gombiformis and indicates that these oils should be more studied.

Chemical Composition and Biological Effects of Essential Oils from Some Aromatic and Medicinal Plants

2020 ◽  
Vol 10 ◽  
Author(s):  
Cennet Yaman ◽  
Yusuf Sari ◽  
Sevim Atmaca ◽  
Zeliha Eroglu ◽  
Omer Kayir ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Pseudomonas Syringae ◽  
Biological Effects ◽  
Major Product ◽  
Diffusion Method ◽  
Total Phenolic ◽  
Plant Materials ◽  
Dpph Method

Background: Natural products play a significant role in drug discovery process due to containing of a large variety of bioactive compounds. Objective: To isolate the essential oil from Salvia fruticosa (SF), Lavandula intermedia (LI), and Rosmarinus officinalis (RO) with identification the chemical composition of the oils and to investigate the antioxidant, antifungal and antibacterial activities. Method: The plant materials were cultivated and supplied from Yalova, Turkey. Essential oils were generated from aerial parts of each plant by steam distillation and the compounds were identified by GC-MS analyses. Total phenolic and total flavonoid contents were determined. DPPH method was used for antioxidant activity. Seed germination was executed with the standard method. Antifungal and antibacterial activity were carried out by disc diffusion method. Results: 1,8-Cineole (45.8%) was the main constituent of SF. Linalyl acetate (34.4%) was detected as the chief product of LI. The major product of RO was assigned as 1,8-cineole (43.3%). RO essential oil (IC50, 224.76 µg ml-1) had higher DPPH• effect than the standard, BHT. LI essential oil showed the outstanding antifungal activity (100%) on Botrytis cinerea and Scelerotinia sclerotiorum. LI essential oil inhibited the Clavibacter michiganensis subsp. michiganensis at the rate of 16.4% at 7.5 µl dose. The best antibacterial effect was observed for RO essential oil on Pseudomonas syringae pv. tomato (30.5%) at 7.5 µl. Conclusion: R. officinalis essential has a potential for using in food industry as a natural antioxidant. L. intermedia and R. officinalis essential oils could be useful in food and agriculture to keep the products in high worth.

scholarly journals Antifungal and Phytotoxic Activities of Essential Oils: In Vitro Assays and Their Potential Use in Crop Protection

Agronomy ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 825
Author(s):  
Imad El-Alam ◽  
Robin Raveau ◽  
Joël Fontaine ◽  
Anthony Verdin ◽  
Frédéric Laruelle ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oils ◽  
Direct Contact ◽  
Plant Pathogens ◽  
Biological Effects ◽  
Crop Protection ◽  
Control Plant ◽  
In Vitro Assays ◽  
Experimental Conditions ◽  
Rye Grass

(1) Background: The use of natural products based on essential oils (EO) is nowadays arousing great interest as an alternative method to control plant pathogens and weeds. However, EO possess low bioavailability and are highly volatile, and their encapsulation in hydroxypropyl-ß-cyclodextrin (HP-β-CD) could be a means to enhance their stability and maintain their bioactivity. Thus, the current study aims at investigating, in the presence and the absence of HP-β-CD, the antifungal and phytotoxic activities of nine EO, distilled from plant species belonging to Alliaceae, Apiaceae, and Cupressaceae families, with considerations for their chemical composition. (2) Methods: EO antifungal activity was assessed by direct contact and volatility assays against Fusarium culmorum, a major phytopathogenic fungi, while phytotoxic effects were evaluated against lettuce (Lactuca sativa L.) and rye-grass (Lolium perenne L.), by seedling’s emergence and growth assays. (3) Results: These EO inhibit fungal growth in both direct contact and volatility assays, with half-maximal inhibitory concentrations (IC50) ranging from 0.01 to 4.2 g L−1, and from 0.08 up to 25.6 g L−1, respectively. Concerning phytotoxicity, these EO have shown great potential in inhibiting lettuce (IC50 ranging from 0.0008 up to 0.3 g L−1) and rye-grass (IC50 ranging from 0.01 to 0.8 g L−1) seedlings’ emergence and growth. However, the EO encapsulation in HP-β-CD has not shown a significant improvement in EO biological properties in our experimental conditions. (4) Conclusion: All tested EO present antifungal and phytotoxic activities, with diverse efficacy regarding their chemical composition, whilst no increase of their biological effects was observed with HP-β-CD.

scholarly journals Chemical Composition of Myrtle (Myrtus communis L.) Berries Essential Oils as Observed in a Collection of Genotypes

Molecules ◽  
2018 ◽  
Vol 23 (10) ◽  
pp. 2502 ◽  
Author(s):  
Marianna Usai ◽  
Mauro Marchetti ◽  
Nicola Culeddu ◽  
Maurizio Mulas
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Relative Abundance ◽  
Mediterranean Area ◽  
Wild Plants ◽  
Gas Chromatography Mass Spectrometry ◽  
Geranyl Acetate ◽  
Myrtus Communis ◽  
Myrtus Communis L

Myrtle (Myrtus communis L.) is a shrub spontaneously growing in the Mediterranean area. The leaf and fruit content of essential oils and phenolic compounds justify the wide use of the plant as medicinal and aromatic. Because of overexploitation of wild plants, a domestication process is in progress in different regions and the influence of the genotype variability on the chemical composition of fruit essential oils may be useful to breeding programs. Consequently, the analysis performed on a selected group of candidate clones growing in the same field collection in Sardinia is the object of this report. Forty-seven selections provided fully ripe fruits for essential oil extraction by hydrodistillation and Gas Chromatography-Mass Spectrometry (GC-MS) analysis. Only five candidate clones showed white fruits. The highest yield of essential oil was observed in the LAC31 genotype with 0.55 g·kg−1, while the samples BOS1, MON5, RUM4, RUM10, V4 and V8 showed values above 0.20 g·kg−1 and most of the genotypes under 0.10 g·kg−1. Geranyl acetate was the compound with the highest relative abundance. The second compound for relative abundance was the 1,8-cineole. Other compounds with high relative abundance were α-terpinyl acetate, methyleugenol, linalool, α-terpineol, β-caryophyllene, α-humulene, Trans-caryophyllene oxide, and humulene epoxide II.

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