Chemical Compositions and Antibacterial Effects of Essential Oils of Turkish Oregano (Origanum minutiflorum), Bay Laurel (Laurus nobilis), Spanish Lavender (Lavandula stoechasL.), and Fennel (Foeniculum vulgare) on Common Foodborne Pathogens

2004 ◽  
Vol 52 (26) ◽  
pp. 8255-8260 ◽  
Author(s):  
Itir Dadalioǧlu ◽  
Gulsun Akdemir Evrendilek
Keyword(s):  
Essential Oils ◽  
Foodborne Pathogens ◽  
Chemical Compositions ◽  
Antibacterial Effects ◽  
Laurus Nobilis ◽  
Foeniculum Vulgare

Composition and Antimicrobial Properties of Sardinian Juniperus Essential Oils against Foodborne Pathogens and Spoilage Microorganisms

2003 ◽  
Vol 66 (7) ◽  
pp. 1288-1291 ◽  
Author(s):  
SOFIA COSENTINO ◽  
ANDREA BARRA ◽  
BARBARA PISANO ◽  
MADDALENA CABIZZA ◽  
FILIPPO MARIA PIRISI ◽  
...  
Keyword(s):  
Essential Oils ◽  
Foodborne Pathogens ◽  
Antimicrobial Properties ◽  
Antimicrobial Activities ◽  
Aflatoxin Contamination ◽  
Gas Chromatography Mass Spectrometry ◽  
Chemical Compositions ◽  
Microdilution Method ◽  
Ms Analysis ◽  
Broth Microdilution Method

In this work, the chemical compositions and antimicrobial properties of Juniperus essential oils and of their main components were determined. Five berry essential oils obtained from different species of Juniperus growing wild in Sardinia were analyzed. The components of the essential oils were identified by gas chromatography–mass spectrometry (GC-MS) analysis. The antimicrobial activities of the oils and their components against food spoilage and pathogenic microorganisms were determined by a broth microdilution method. The GC-MS analysis showed a certain variability in the concentrations of the main constituents of the oils. α-Pinene was largely predominant in the oils of the species J. phoenicea subsp. turbinata and J. oxycedrus. α-Pinene and myrcene constituted the bulk (67.56%) of the essential oil of J. communis. Significant quantitative differences were observed for myrcene, δ-3-carene, and d-germacrene. The results of the antimicrobial assay show that the oils of J. communis and J. oxycedrus failed to inhibit any of the microorganisms at the highest concentrations tested (MLC ≥ 900 μg/ml), while the oils extracted from J. turbinata specimens were active against fungi, particularly against a strain of Aspergillus flavus (an aflatoxin B1 producer). Of the single compounds tested, δ-3-carene was found to possess the broadest spectrum of activity and appeared to contribute significantly to the antifungal activity observed for J. turbinata oils. This activity may be helpful in the prevention of aflatoxin contamination for many foods.

scholarly journals Constituents of essential oils from leaves and seeds of Laurus nobilis L.: A chemotaxonomic approach

2018 ◽  
Vol 47 (4) ◽  
pp. 893-901
Author(s):  
Omer Elkiran ◽  
Emel Akbaba ◽  
Eyup Bagci
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Methyl Eugenol ◽  
The Other ◽  
Chemical Compositions ◽  
Caryophyllene Oxide ◽  
Volatile Oils ◽  
Laurus Nobilis ◽  
Total Oil

In the present study, chemical compositions of essential oils from seeds and leaves of laurel (Laurus nobilis L.) were evaluated using GC-GC/MS system. Sixty nine different compounds were identified constituting 86.7% of the total oil from the seed, while 76 compounds were determined, constituting 95.8% of the total oil extracted from the leaves. The major compounds of essential oil from laurel seeds included eucalyptol (17.2%), α-terpinyl acetate (9.0%), caryophyllene oxide (6.1%), spathulenol (5.0%) and methyl eugenol (4.2%), constituting 41.5% of the total oil. However, eucalyptol (18.0%), α-terpinyl acetate (13.1%), sabinene (7.8%), α-pinene (4.5%), 2 (4-methoxyphenyl)-N,N,2-trimethyl-1-pyrroline (4.4%) were identified as the major compounds in the oil from laurel leaves, constituting 47.8% of the total oil. Eucalyptol and α- terpinyl acetate, belonging to monoterpenoids, were determined in the highest concentrations within both oils. However, the other principle compounds differ between the two volatile oils.

scholarly journals Optimized Antibacterial Effects in a Designed Mixture of Essential Oils of Myrtus communis, Artemisia herba-alba and Thymus serpyllum for Wide Range of Applications

Foods ◽  
2022 ◽  
Vol 11 (1) ◽  
pp. 132
Author(s):  
Wessal Ouedrhiri ◽  
Hamza Mechchate ◽  
Sandrine Moja ◽  
Sylvie Baudino ◽  
Asmaa Saleh ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Design Method ◽  
Biological Effects ◽  
Mixture Design ◽  
Chemical Compositions ◽  
Myrtus Communis ◽  
Antibacterial Effects ◽  
Wide Range ◽  
Thymus Serpyllum

Nowadays, the combination of molecules influences their biological effects, and interesting outcomes can be obtained from different component interactions. Using a mixture design method, this research seeks to simulate the efficacy of essential oil combinations against various bacteria and forecast the ideal combination. The chemical compositions of Myrtus communis, Artemisia herba-alba and Thymus serpyllum essential oils were analyzed using CG/MS. Then, the combined antibacterial effects were evaluated by testing mixture design formulations using the microdilution bioassay. The main compounds detected for M. communis essential oil were myrtenyl acetate (33.67%), linalool (19.77%) and 1,8-cineole (10.65%). A. herba-alba had piperitone as a chemotype, representing 85%. By contrast, the T. serpyllum oil contained thymol (17.29%), γ-terpinene (18.31%) and p-cymene (36.15%). The antibacterial effect of the essential oils studied, and the optimum mixtures obtained were target strain-dependent. T. serpyllum alone ensured the optimal inhibition against S. aureus and E. coli, while a ternary mixture consisting of 17.1%, 39.6% and 43.1% of M. communis, A. herba-alba and T. serpyllum respectively, was associated with optimal inhibitory activity against B. subtilis. The outcome of this research supports the idea of the boosting effect of essential oil combinations toward better activities, giving better understanding of the usefulness of mixture designs for food, cosmetics, and pharmaceutical applications.

scholarly journals Chemical Constituents and Combined Larvicidal Effects of Selected Essential Oils againstAnopheles cracens(Diptera: Culicidae)

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Jitrawadee Intirach ◽  
Anuluck Junkum ◽  
Benjawan Tuetun ◽  
Wej Choochote ◽  
Udom Chaithong ◽  
...  
Keyword(s):  
Essential Oils ◽  
Synergistic Effects ◽  
Chemical Constituents ◽  
Curcuma Longa ◽  
Larval Mortality ◽  
Chemical Compositions ◽  
Synergistic Activity ◽  
Dependent Manner ◽  
Foeniculum Vulgare ◽  
Main Component

A preliminary study on larvicidal activity against laboratory-colonizedAnopheles cracensmosquitos revealed that five of ten plant oils at concentration of 100 ppm showed 95–100% larval mortality. The essential oils of five plants, includingPiper sarmentosum, Foeniculum vulgare, Curcuma longa, Myristica fragrans, andZanthoxylum piperitum,were then selected for chemical analysis, dose-response larvicidal experiments, and combination-based bioassays. Chemical compositions analyzed by gas chromatography coupled to mass spectrometry demonstrated that the main component in the oil derived fromP. sarmentosum, F. vulgare, C. longa, M. fragrans, and Z. piperitumwas croweacin (71.01%), anethole (63.00%), ar-turmerone (30.19%), safrole (46.60%), and 1,8-cineole (21.27%), respectively. For larvicidal bioassay, all five essential oils exerted promising efficacy in a dose-dependent manner and different performances onA. cracensafter 24 hours of exposure. The strongest larvicidal potential was established fromP. sarmentosum, followed byF. vulgare, C. longa, M. fragrans, andZ. piperitum, with LC50values of 16.03, 32.77, 33.61, 40.00, and 63.17 ppm, respectively. Binary mixtures betweenP. sarmentosum, the most effective oil, and the others at the highest ratio were proved to be highly efficacious with a cotoxicity coefficient value greater than 100, indicating synergistic activity. Results of mixed formulations of different essential oils generating synergistic effects may prove helpful in developing effective, economical, and ecofriendly larvicides, as favorable alternatives for mosquito management.

scholarly journals In vitro antimicrobial properties of plant essential oils thymus vulgaris, cymbopogon citratus and laurus nobilis against five important foodborne pathogens

2012 ◽  
Vol 32 (1) ◽  
pp. 167-172 ◽  
Author(s):  
Alessandra Farias Millezi ◽  
Danila Soares Caixeta ◽  
Diogo Francisco Rossoni ◽  
Maria das Graças Cardoso ◽  
Roberta Hilsdorf Piccoli
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Foodborne Pathogens ◽  
Antimicrobial Properties ◽  
Major Constituent ◽  
Thymus Vulgaris ◽  
Cymbopogon Citratus ◽  
Laurus Nobilis ◽  
Plant Essential Oils

Several essential oils of condiment and medicinal plants possess proven antimicrobial activity and are of important interest for the food industry. Therefore, the Minimum Inhibitory Concentrations (MIC) of those oils should be determined for various bacteria. MIC varies according to the oil used, the major compounds, and the physiology of the bacterium under study. In the present study, the essential oils of the plants Thymus vulgaris (time), Cymbopogon citratus (lemongrass) and Laurus nobilis (bay) were chemically quantified, and the MIC was determined on the bacteria Staphylococcus aureus ATCC 25923, Escherichia coli ATCC 25922, Listeria monocytogenes ATCC 19117, Salmonella enterica Enteritidis S64, and Pseudomonas aeruginosa ATCC 27853. The essential oil of C. citratus demonstrated bacterial activity at all concentrations tested and against all of the bacteria tested. The majority of essential oil compounds were geranial and neral. The major constituent of T. vulgaris was 1.8-cineol and of L. nobilis was linalool, which presented lower antibacterial activity, followed by 1.8-cineol. The Gram-negative bacteria demonstrated higher resistance to the use of the essential oils tested in this study. E. coli was the least sensitive and was inhibited only by the oils of C. citratus and L. nobilis.

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.

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