scholarly journals Chemical composition and antibacterial activities of essential oils from fruits of Melicope pteleifolia (Champ. Ex Benth.) T.G. Hartley grown in Lam Dong Province, Vietnam

2020 ◽  
Vol 42 (3) ◽  
Author(s):  
Hoang Thi Binh ◽  
Tran Thi Bao Tram ◽  
Do Ngoc Dai ◽  
Vuong Thuy Tien ◽  
Le Minh Tam ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Chemical Composition ◽  
Essential Oil ◽  
Streptococcus Pyogenes ◽  
Antibacterial Properties ◽  
Antibacterial Activities ◽  
Gas Chromatography Mass Spectrometry ◽  
Diffusion Method ◽  
Aerial Parts ◽  
Agar Well Diffusion Method

In the present study, chemical composition and antibacterial properties of essential oil obtained from the aerial parts of the Melicope pteleifolia (Champ. ex Benth.) T.G Hartley in Dalat were evaluated. Essential oil was isolated through hydro-distillation. Twenty-nine constituents comprising 100% of the essential oil were characterized by gas chromatography/mass spectrometry (GC-MS) techniques. The major compounds in the essential oil were (+)-Sabinene (34.73%), Cis-α-bergamotene (13.15%), Z-α-trans-bergamotol (5.28%), β-mycrene (4.98%), and 1,3,6-octatriene, 3,7-dimethyl-(4.71%). Antibacterial activities of Melicope pteleifolia essential oil were investigated against Gram-positive and-negative bacteria. Results showed significant activities against Streptococcus pyogenes and Escherichia coli using an agar well diffusion method. The application of this essential oil in preventing and eliminating bacteria could be useful in fields as medicine and cosmetics. 

Medicinal Plants: Antibacterial Effects and Chemical Composition of Essential Oil of Foeniculum vulgare

2017 ◽  
Vol 8 (01) ◽  
Author(s):  
Azadeh Foroughi ◽  
Pouya Pournaghi ◽  
Fariba Najafi ◽  
Akram Zangeneh ◽  
Mohammad Mahdi Zangeneh ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Medicinal Plants ◽  
Essential Oil ◽  
Antibacterial Properties ◽  
Screen Test ◽  
Antibacterial Activities ◽  
Gas Chromatography Mass Spectrometry ◽  
Resistant Bacteria ◽  
Antibacterial Effects ◽  
Foeniculum Vulgare

Medicinal plants are considered modern resources for producing agents that could act as alternatives to antibiotics in demeanor of antibiotic-resistant bacteria. The aim of the study was to evaluate the chemical composition and antibacterial activities of essential oil of Foeniculum vulgare (FV) against Pseudomonas aeruginosa and Bacillus subtilis. Gas chromatography mass spectrometry was done to specify chemical composion. As a screen test to detect antibacterial properties of the essential oil, agar disk and agar well diffusion methods were employed. Macrobroth tube test was performed to determinate MIC. The results indicated that the most substance found in FV essential oil was Trans-anethole (47.41 %), also the essential oil of FV with 0.007 g/ml concentration has prevented P. aeruginosa and with 0.002 g/ml concentration has prevented B. subtilis from the growth. Thus, the research represents the antibacterial effects of the medical herb on test P. aeruginosa and B. subtilis. We believe that the article provide support to the antibacterial properties of the essential oil. The results indicate the fact that the essential oil from the plant can be useful as medicinal or preservatives composition.

scholarly journals Chemical Composition of the Essential Oil of Croton bonplandianus from India

2014 ◽  
Vol 9 (2) ◽  
pp. 1934578X1400900
Author(s):  
Rajesh K. Joshi
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Gas Chromatography Mass Spectrometry ◽  
Caryophyllene Oxide ◽  
Aerial Parts ◽  
Sesquiterpene Hydrocarbons ◽  
Germacrene D ◽  
Total Oil

The essential oil obtained from the aerial parts of Croton bonplandianus Baill. was analyzed by gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS). A total of 37 compounds have been identified, representing 96.2% of the total oil. The main constituents were identified as β-caryophyllene (16.7%), germacrene D (14.7%), borneol (8.3%), Z-β-damascenone (6.(%), isobornyl acetate (6.2%), α-humulene (6.1%), germacrene A (5.2%) and caryophyllene oxide (4.5%). The oil was rich in sesquiterpene hydrocarbons (60.1%).

Chemical Composition of the Essential Oil From Minthostachys acris Schmidt-Leb. Grown in the Peruvian Andes

2019 ◽  
Vol 14 (7) ◽  
pp. 1934578X1985749
Author(s):  
Jorge A. Pino ◽  
María Milagros Dueñas-Mendoza ◽  
Leoncio Solís-Quispe
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Steam Distillation ◽  
Gas Chromatography Mass Spectrometry ◽  
Ionization Detector ◽  
Peruvian Andes ◽  
Flame Ionization ◽  
Aerial Parts

The chemical composition of the essential oil from aerial parts of Minthostachys acris Schmidt-Leb. grown in Cuzco was studied. A total of 59 volatile compounds were identified by gas-chromatography-flame ionization detector and gas chromatography-mass spectrometry in the essential oil obtained by steam distillation, of which the most prominent were pulegone (54.4%), cis-menthone (11.0%), and thymol (6.3%).

scholarly journals Chemotypes and antibacterial activities of Inula viscosa essential oils from Algeria

2020 ◽  
Vol 21 (4) ◽  
Author(s):  
Abdelkader Ounoughi ◽  
Messaoud Ramdani ◽  
Takia Lograda ◽  
Pierre Chalard ◽  
Gilles Figueredo
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Bacterial Species ◽  
Antibacterial Activities ◽  
Diffusion Method ◽  
Moderate Activity ◽  
Phytochemical Study ◽  
Aerial Parts ◽  
Total Oil

Abstract. Ounoughi A, Ramdani M, Lograda  T, Chalard P, Figueredo G. 2020. Chemotypes and antibacterial activities of Inula viscosa essential oils from Algeria. Biodiversitas 21: 1504-1517. The aim of this work is to investigate the chemical composition and the antibacterial activities of the essential oils from Inula viscosa (L.) Aiton. Samples were collected in the flowering stage, from different localities in Algeria. The aerial parts of I. viscosa were submitted to a hydro distillation. The chemical composition of the essential oil was analyzed by GC and GC/MS. The antibacterial activity of the essential oils was evaluated using the disc diffusion method against fifteen bacterial species. Fifty-eight compounds representing 98.93 ± 2.03% of the total oil was identified in I. viscosa. It was found that the chemical composition was dominated by the presence of the following major products: polygodial (19.8 ± 16.97%), phytol (12.3 ± 9.77%), fokienol (6.01 ± 3.43%), intermedeol neo (5.09 ± 2.38%), caryophyllene oxide (4.91 ± 3.03%), nerolidol-Z (4.46 ± 5.46%), nerolidol-E (4.24 ± 8.07%) and α-ionone iso methyl-E (3.72 ± 2.26%). The essential oil of I. viscosa has moderate activity against the bacteria tested. In contrast, the Escherichia coli ATCC 25922, Pseudomonon syringae ATCC 53543 and Enterococcus faecalis ATCC 49452 strains are resistant to I. viscosa essential oils. The phytochemical study of I. viscosa showed that it is rich in terpene compounds, with polygodial and phytol as major components. Three distinct chemotypes are highlighted. The (Polygodial-Intermedeol-neo-Phytol) chemotype of Salah Bey population and two chemotypes with Fokinol-polygodial and Fokinol-phytol. Moderate antibacterial activities of essential oils against the bacteria tested were found.

scholarly journals Chemical Composition and Antimicrobial Activity of Essential Oils of Genista ulicina and G. vepres

2010 ◽  
Vol 5 (5) ◽  
pp. 1934578X1000500 ◽  
Author(s):  
Takia Lograda ◽  
Adel Nadjib Chaker ◽  
Jean Claude Chalchat ◽  
Messaoud Ramdani ◽  
Hafsa Silini ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Antibacterial Activities ◽  
Gas Chromatography Mass Spectrometry ◽  
Diffusion Method ◽  
Aerial Parts ◽  
Total Oil ◽  
And Staphylococcus Aureus

The hydrodistilled oils from the aerial parts of Genista ulicina Spach. and G. vepres Pomel., which are endemic to Algeria, were analyzed by gas chromatography-mass spectrometry (GC-MS). In the oil of G. ulicina, 41 compounds were identified representing 90.8% of the total oil, and in G. vepres, 61 compounds representing 84.5% of the total oil. The analyses showed that the major constituents of the oils were lauric acid (14.3% – 8.5%), myristic acid (11.5% – 5%), linoleic acid (3.1% –11.7%) and palmitic acid (18.6% – 26.4%). Using a diffusion method, the oils showed significant antibacterial activities against Escherichia coli (ATCC 25922), Pseudomonas aeruginosa (ATCC 27853) and Staphylococcus aureus (ATCC 25923).

Chemical composition and antibacterial activities of Juniperus horizontalis essential oil

2014 ◽  
Vol 94 (2) ◽  
pp. 323-327 ◽  
Author(s):  
T. Eryiğit ◽  
N. Okut ◽  
K. Ekici ◽  
B. Yildirim
Keyword(s):  
Antibacterial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Inhibition Zone ◽  
Antibacterial Activities ◽  
Gas Chromatography Mass Spectrometry ◽  
Diffusion Method ◽  
Bacterial Strains ◽  
The Subject

Eryiğit, T., Okut, N., Ekici, K. and Yildirim, B. 2014. Chemical composition and antibacterial activities of Juniperus horizontalis essential oil. Can. J. Plant Sci. 94: 323–327. In recent years, the screening of antibacterial activity has been the subject of much research, and the antibacterial activity of essential oils could be a promising subject for future investigation. In this study, the antibacterial activities of Juniperus horizontalis essential oils and their components were investigated. Essential oils were isolated using the hydro-distillation method and their components were analyzed by gas chromatography–mass spectrometry (GC-MS). The main compounds found in the oil of leaves were linalool (33.76%), P-cymene (23.20%), gamma-terpinene (8.67%), trans-sabinene hydrate (8.59%), thyme camphor (8.49%), carvol (5.08%) and borneol (4.22%). Juniperus horizontalis essential oils were evaluated for antibacterial activity against six bacterial strains using the disc diffusion method. The results indicate that the essential oil of J. horizontalis shows variable and significant antibacterial activities against the six tested bacteria species. The diameters of the inhibition zones formed for bacteria were measured. The lowest inhibition zone was 12 mm (sensitive) against Pseudomonas aeruginosa ATCC 10145 and the highest zone was 32 mm (extremely sensitive) against Enterococcus faecalis ATCC 29212.

scholarly journals Chemical composition and insecticidal activity of Garcinia gardneriana (Planchon & Triana) Zappi (Clusiaceae) essential oil

2021 ◽  
Vol 20 (5) ◽  
pp. 503-514
Author(s):  
Carla Maria Mariano Fernandez ◽  
◽  
Fabiana Brusco Lorenzetti ◽  
Sirlene Adriana Kleinubing ◽  
Joao Paulo Pinguello de Andrade ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Composition ◽  
Chemical Analysis ◽  
Essential Oil ◽  
Immersion Test ◽  
Acaricidal Activity ◽  
Gas Chromatography Mass Spectrometry ◽  
Larvicidal Effect ◽  
Sesquiterpene Hydrocarbons

The present study aimed to analyze the chemical composition of the essential oil from Garcinia gardneriana (Planchon & Triana) Zappi leaves and fruits, and to determine its acaricidal activity on Rhipicephalus microplus by larval packet test and larvicidal action on Aedes aegypti by larval immersion test. The chemical analysis of the essential oil by gas chromatography-mass spectrometry identified sesquiterpene hydrocarbons and oxygenated sesquiterpenes in bacupari leaves and fruits, and α-cedrene, α-chamigrene, α-trans-bergamotene, and β-curcumene as major compounds. Essential oil from leaves of G. gardneriana presented acaricidal activity on R. microplus (LC50 = 4.8 mg/mL; LC99 = 10.8 mg/mL) and larvicidal effect on A. aegypti (LC50 = 5.4 mg/mL; LC99 = 11.6 mg/mL), whereas essential oil from the fruits of G. gardneriana showed LC50 = 4.6 mg/mL and LC99 = 8.9 mg/mL against R. microplus and LC50 = 6.4 mg/mL and LC99 = 13.9 mg/mL against A. aegypti. These results thus demonstrate the potential acaricidal and larvicidal activity of essential oil of G. gardneriana, offering new perspectives for the realization of bioassays from this essential oil.

scholarly journals Chemical Composition of Vernonia albicans Essential Oil from India

2014 ◽  
Vol 9 (7) ◽  
pp. 1934578X1400900
Author(s):  
Rajesh K. Joshi
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Flame Ionization Detector ◽  
Ionization Detector ◽  
Flame Ionization ◽  
Aerial Parts ◽  
Sesquiterpene Hydrocarbons ◽  
Total Oil

The chemical composition of the hydro-distilled essential oil obtained from the flowering aerial parts of Vernonia albicans DC. (Asteraceae) was analyzed by gas chromatography equipped with a flame ionization detector (GC-FID) and gas chromatography coupled with a mass spectrometry (GC/MS). Thirty-nine compounds have been identified, representing 97.5% of the total oil. The major constituents were β-caryophyllene (34.3%), γ-amorphene (19.5%), 9-epi-β-caryophyllene (6.9%), and α-pinene (6.9%). The oil was found to be rich in sesquiterpene hydrocarbons (73.9%).

scholarly journals Chemical Composition and Antibacterial Activity of Essential Oil of Anvillea radiata Coss. & Dur

2007 ◽  
Vol 2 (5) ◽  
pp. 1934578X0700200
Author(s):  
Fadwa El Hanbali ◽  
Ahmed El Hakmaoui ◽  
Fouad Mellouki ◽  
Lahoussine El Rhaffari ◽  
Mohamed Akssira
Keyword(s):  
Antimicrobial Activity ◽  
Antibacterial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method ◽  
Aerial Parts

The essential oil of the aerial parts of Anvillea radiata Coss. & Dur. was examined by GC-MS. Twenty-nine constituents were identified, representing 88.8% of the total. 6-Oxocyclonerolidol (66.6%) and 6-hydroxycyclonerolidol (11.4%) were found to be the major components. The disc diffusion method, used for antimicrobial activity testing, showed that the essential oil had a significant antibacterial activity against all tested microorganisms.

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