scholarly journals ANTIMICROBIAL POTENTIAL OF TRADITIONALLY USED ESSENTIAL OILS ON DIFFERENT PATHOGENIC MICROORGANISMS

2018 ◽  
Vol 5 (4) ◽  
pp. 1669-1673
Author(s):  
Tamojit Lodh ◽  
Soumitra Sau ◽  
Sayan Nandi ◽  
Nurul Hasan Poilan ◽  
Haider Mollik ◽  
...  
Keyword(s):  
Essential Oils ◽  
Pathogenic Microorganisms ◽  
Antimicrobial Potential

Antimicrobial activity of essential oils onto pathogenic microorganisms of interest to dentistry

Planta Medica ◽  
2011 ◽  
Vol 77 (12) ◽  
Author(s):  
VR Santos ◽  
VA Noronha ◽  
JC Silva ◽  
FF Silva ◽  
TF Machado ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oils ◽  
Pathogenic Microorganisms

Chemical composition, antimicrobial, antioxidative and anticholinesterase activity of Satureja Montana L. ssp montana essential oil

2014 ◽  
Vol 9 (7) ◽  
pp. 668-677 ◽  
Author(s):  
Tatjana Mihajilov-Krstev ◽  
Dragan Radnović ◽  
Dušanka Kitić ◽  
Vesna Jovanović ◽  
Violeta Mitić ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Human Serum ◽  
Biological Activities ◽  
Serum Cholinesterase ◽  
Health Improvement ◽  
Chemical Compositions ◽  
Bacterial Strains ◽  
Antimicrobial Potential ◽  
Satureja Montana

AbstractThe present study investigates the chemical compositions of three Satureja montana L. ssp montana essential oils and correlates chemical variability with biological activities. GC/MS analysis showed that with an increase in altitude (100–500–800 m), a higher content of linalool, terpinen-4-ol and cis-sabinene hydrate was found, while the percentage of phenolic compounds, thymol and carvacrol decreased. Antimicrobial activity of the essential oils was tested against 7 fungal and 23 bacterial strains. The essential oil characterized by the highest content of phenols and alcohols exhibited the highest antimicrobial potential. The correlation analysis showed that the major carriers of the obtained antioxidant activity are oxygenated monoterpenes. All essential oils inhibited human serum cholinesterase activity. High antimicrobial potential, together with moderate antioxidant capacity and strong inhibition of human serum cholinesterase, classifies S. montana essential oil as a natural source of compounds that can be used in the treatment of foodborne and neurological diseases, wound and other infections, as well as for general health improvement.

Antimicrobial potential of irrigants based on essential oils of Cymbopogon martinii and Thymus zygis towards in vitro multispecies biofilm cultured in ex vivo root canals

2020 ◽  
Vol 117 ◽  
pp. 104842
Author(s):  
Jelena Marinković ◽  
Dragana Mitić Ćulafić ◽  
Biljana Nikolić ◽  
Stefana Đukanović ◽  
Tatjana Marković ◽  
...  
Keyword(s):  
Essential Oils ◽  
Ex Vivo ◽  
Root Canals ◽  
Antimicrobial Potential ◽  
Multispecies Biofilm ◽  
Thymus Zygis ◽  
Cymbopogon Martinii

scholarly journals Antifungal activity of Ocotea odorifera (Vell.) Rowher, Ocotea puberula (Rich.) Nees and Cinnamodendron dinisii Schwanke essential oils

2019 ◽  
Author(s):  
P. Mezzomo ◽  
T.L. Sausen ◽  
N. Paroul ◽  
S.S. Roman ◽  
A.A.P. Mielniczki ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Antifungal Activity ◽  
Essential Oil ◽  
Essential Oils ◽  
Inhibitory Concentration ◽  
Chemical Compounds ◽  
Inhibitory Effect ◽  
Pathogenic Microorganisms ◽  
Biological Interest ◽  
Penicillium Crustosum

AbstractBiocompounds are promising tools with the potential to control pathogenic microorganisms. The medicinal plant species Ocotea odorifera, Ocotea puberula and Cinnamodendron dinisii, distributed along Brazilian biomes, are sources of chemical compounds of biological interest. This study aimed to evaluate the antifungal activity of the essential oils of O. odorifera, O. puberula and C. dinisii essential oils upon the mycotoxin producers Alternaria alternata, Aspergillus flavus and Penicillium crustosum. The essential oils where characterized by gas chromatography coupled to mass spectrometer (CG-MS). The majority compounds identified were: safrol (39.23%) and camphor (31.54%) in O. odorifera, Beta-caryophyllene (25.01%) and spathulenol (17.74%) in O. puberula, and bicyclogermacrene (23.19%) and spathulenol (20.21%) in C. dinisii. The Minimal Inhibitory Concentration (MIC) of antifungal activity considered diameters higher than 10 mm after 72 h of incubation at 30 ºC. A. alternata presented higher resistance to O. odorifera and C. dinisii oils. The inhibitory effect of O. odorifera on A. flavus showed stabilization at oils concentrations between 50% and 80%, increasing at 90% and 100% (pure oil) treatments. We observed that the essential oils of O. odorifera and C. dinisii have potential in the control of the analyzed fungi species. The essential oil of O. odorifera presented a better activity in all the assays, which can be related to the presence of safrole and phenylpropenes, compounds with known antifungal activity.

Influence of essential oils on the biofilm formation and cell agglomeration of Burkholderia cepacia from industrial environment

2020 ◽  
Author(s):  
Katrin Huth-Herms ◽  
Alexander Kintzel ◽  
Annika Brehmer ◽  
Christoph Hein ◽  
Prof. Dr. h. c. Dr.-Ing. Eckart Uhlmann
Keyword(s):  
Essential Oils ◽  
Biofilm Formation ◽  
Burkholderia Cepacia ◽  
Pathogenic Bacteria ◽  
Multi Drug Resistance ◽  
Dilution Method ◽  
Agar Dilution Method ◽  
Active Ingredients ◽  
Antimicrobial Potential ◽  
The Impact

<p><em>Burkholderia cepacia</em> (<em>B. cepacia</em>) is one of nine species the <em>Burkholderia cepacia</em> complex, a group of gram-negative, motile, non-spore-forming and rod-shaped bacteria. Contamination by <em>B. cepacia</em> is found in different industrial issues. <em>B. cepacia</em> affect manufacturing process chains by contaminating the working fluids with planktonic cells and biofilms. Because of the opportunistic pathogenicity to plants, animals, humans and and the multi-drug resistance, <em>B. cepacia</em> is difficult to treat. An alternative treatment method could be the use of herbal raw materials, such as essential oils and their active ingredients. This study aims: (i) to identify the antimicrobial potential of essential oils on the growth of four <em>B. cepacia</em> isolates, (ii) to analyse the influence of active ingredients, on planktonic growth and biofilm formation, (iii) to better understand the impact of commercial and naturally biocides to cell agglomeration as a precursor to mature biofilms. Starting with agar dilution method to evaluate the antimicrobial potential of twenty-three essential oils against <em>B. cepacia</em> (<em>Burk_09</em>,<em> Burk_23</em>,<em> Burk_52</em> and <em>Burk_309</em>) isolated from cathodic dip coating systems and the wild type (<em>DSM_7288</em>), it was all ready possible to identify eight essential oils that inhibit the growth of <em>B. cepacia</em>. Serial microdilution was used to determine the minimal inhibitory concentration (MIC) of the essential oils for growth and biofilm formation inhibition of <em>B. cepacia</em>. The MIC of <em>Melaleuca alternifolia</em> and <em>Citrus aurantium dulcis</em> essential oils were tested equally for all strains. Essential oils contain active ingredients against the growth of multi-drug resistant and pathogenic bacteria. From twelve active substances among others, Terpinen-4-ol and Geraniol were identified that inhibited growth and biofilm formation. It is concluded that essential oils and active ingredients have a good antimicrobial potential, demonstrating a possible more environmental-friendly alternative to commercial biocides applying in industrial fluids.</p>

scholarly journals Antimicrobial evaluation of plant essential oils against pathogenic microorganisms: In vitro study of oregano oil combined with conventional food preservatives

2018 ◽  
Vol 28 (4) ◽  
pp. 10-18
Author(s):  
Zahaed Evangelista-Martínez ◽  
Nohemí Reyes-Vázquez ◽  
Ingrid Rodríguez-Buenfil
Keyword(s):  
Essential Oils ◽  
In Vitro Study ◽  
Antimicrobial Activities ◽  
Food Preservation ◽  
Microbial Pathogens ◽  
Pathogenic Microorganisms ◽  
Food Preservatives ◽  
Plant Essential Oils ◽  
Oregano Oil

Essential oils (EO) are promising natural antimicrobial additives to control microbial pathogens. This study aims to investigate the antimicrobial activities of plant essential oils and to study the antimicrobial effect of oregano oil (OrO) in combination with food preservatives. The antimicrobial screening showed that Escherichia coli and Salmonella enterica subsp. enterica serovar Typhimurium (Salmonella ser. Typhimurium) appeared to be less susceptible to EO, whereas Staphylococcus aureus and Candida albicans were more affected. The Minimum Inhibitory Concentration (MIC) and Minimum Lethal Concentration (MLC) for laurel, cumin, oregano and rosemary oils showed values ranging from 0.078% to 1.25% (v/v). Also, synergic and viability effects of OrO combined with acetic acid (AcA) showed an additive effect against E. coli and C. albicans, while combination OrO + ascorbic acid (Asc) exhibited the same effect over Salmonella ser. Typhimurium and C. albicans. Therefore, oregano oil in combination with preservatives could be used to control the growth of pathogenic microorganisms for food preservation.

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