scholarly journals Biocide Activity against Urinary Catheter Pathogens

2013 ◽  
Vol 58 (2) ◽  
pp. 1192-1194 ◽  
Author(s):  
Sladjana Malic ◽  
Rachael P. C. Jordan ◽  
Mark G. J. Waters ◽  
David J. Stickler ◽  
David W. Williams
Keyword(s):  
Essential Oils ◽  
Urinary Catheter ◽  
Bacterial Species ◽  
Tea Tree Oil ◽  
Planktonic Cells ◽  
Antimicrobial Effects ◽  
Tea Tree ◽  
Catheter Infection ◽  
Artificial Urine

ABSTRACTAntimicrobial effects of essential oils against bacteria associated with urinary catheter infection was assessed. Tests were performed on 14 different bacterial species cultured either planktonically or as biofilms. Biofilms were found to be up to 8-fold more tolerant of the test agents. Higher antimicrobial tolerance was also evident in tests conducted in artificial urine. Eugenol exhibited higher antimicrobial effects against both planktonic cells and biofilms than did terpinen, tea tree oil, and cineole.

scholarly journals Anti-Bacterial Effects of Essential Oils against Uropathogenic Bacteria

Antibiotics ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 358
Author(s):  
Maria Loose ◽  
Emmelie Pilger ◽  
Florian Wagenlehner
Keyword(s):  
Essential Oils ◽  
Additional Treatment ◽  
Cross Resistance ◽  
Synergistic Activity ◽  
Antibiotic Resistant ◽  
Tea Tree ◽  
Artificial Urine ◽  
Tract Infections ◽  
Uropathogenic Bacteria

Given the increasing antimicrobial resistance in urinary tract infections (UTI), alternative strategies need to be investigated. Determination of minimal inhibitory and bactericidal concentrations of essential oils from cajeput, lemongrass, tea tree, and thyme in artificial urine, revealed bactericidal activity of all four tested essential oils against seven uropathogenic species with values ranging between 0.78–50 mg/mL. Tea tree and thyme essential oils were more efficient than lemongrass and cajeput. In addition, antibiotic-resistant strains showed similar susceptibility as antibiotic-sensitive strains, suggesting no cross-resistance between antibiotics and these essential oils. Checkerboard assays revealed a synergistic activity of the combination of thyme and tea tree. Furthermore, the combination with thyme and tea tree essential oils increased the activity of fosfomycin and pivmecillinam, but not nitrofurantoin, against Escherichia coli. This study provides a basis for further investigation of the potential of thyme and tea tree oil as an alternative or additional treatment of UTI.

Deterrency and Toxicity of Essential Oils to Argentine and Red Imported Fire Ants (Hymenoptera: Formicidae)

2007 ◽  
Vol 42 (2) ◽  
pp. 239-249 ◽  
Author(s):  
Beverly A. Wiltz ◽  
Daniel R. Suiter ◽  
Wayne A. Gardner
Keyword(s):  
Essential Oils ◽  
Argentine Ant ◽  
Fire Ants ◽  
Continuous Exposure ◽  
Tea Tree Oil ◽  
Argentine Ants ◽  
Tea Tree ◽  
Citronella Oil ◽  
Imported Fire Ants ◽  
Red Imported Fire Ants

Laboratory assays were conducted to evaluate deterrency and contact toxicity of six essential oils to the Argentine ant, Linepithema humile (Mayr), and the red imported fire ant, Solenopsis invicta Buren. In choice tests, both Argentine ants and fire ants crossed barriers treated with multiple rates of basil, citronella, lemon, peppermint, or tea tree oil less frequently than paired control barriers. Eucalyptus oil did not prevent movement of either species at any of the rates tested. In continuous exposure assays, citronella oil killed 50% of Argentine ants in 34.3 min and was the only treatment to cause 100% Argentine ant mortality after 24 h. Argentine ant mortality after 24 h was 89.8% with peppermint oil and 85.7% with tea tree oil, with the remaining treatments having mortality not significantly different from the control. Only citronella oil caused significant mortality of red imported fire ants, with 50.6% of the ants being dead after 24 h of continuous exposure.

scholarly journals Activity of Plant Essential Oils Against Demodex folliculorum and Demodex brevis

2020 ◽  
Vol 9 (4) ◽  
pp. 160-165
Author(s):  
Joanna Wróblewska ◽  
◽  
Jarosław Nuszkiewicz ◽  
Marcin Wróblewski ◽  
Alina Woźniak ◽  
...  
Keyword(s):  
Essential Oils ◽  
Scientific Literature ◽  
Parasitic Disease ◽  
Tea Tree Oil ◽  
Surrounding Area ◽  
Tea Tree ◽  
Plant Essential Oils ◽  
Demodex Folliculorum ◽  
Demodex Brevis ◽  
Selection Of

Infestation with Demodex spp. is an increasingly common dermatological and ophthalmic problem. Preparations for daily cleaning of eyes and the surrounding area (gels, soaked wipes) contain mainly tea tree oil or terpinen-4-ol. To date, the use of other essential oils supporting the fight against demodicosis is limited due to insufficient number of clinical trials. The aim of this review is to present the most commonly used medicinal plants and their active ingredients used in the treatment of infestation with Demodex folliculorum and Demodex brevis, with particular emphasis on tea tree oil. PubMed, Embase and Google Scholar databases were searched for the selection of scientific literature. (JNNN 2020;9(4):160–165) Key Words: Demodex brevis, Demodex folliculorum, essential oil, parasitic disease, tea tree oil

scholarly journals In Vitro Effects of Tea Tree Oil (Melaleuca Alternifolia Essential Oil) and its Principal Component Terpinen-4-ol on Swine Spermatozoa

Molecules ◽  
2019 ◽  
Vol 24 (6) ◽  
pp. 1071 ◽  
Author(s):  
Alberto Elmi ◽  
Domenico Ventrella ◽  
Francesca Barone ◽  
Giacomo Carnevali ◽  
Gianfranco Filippini ◽  
...  
Keyword(s):  
Essential Oils ◽  
Membrane Integrity ◽  
Principal Component ◽  
Tea Tree Oil ◽  
Tea Tree ◽  
Beneficial Effects ◽  
In Vitro Effects ◽  
Sensitive Parameters ◽  
Antioxidant Effects

The growing interest towards essential oils stems from their biological capabilities that include antibacterial and antioxidant effects. Such properties may be extremely useful in the reproductive field; nonetheless essential oils show toxic effects that can lead to cell disruption. The present study aimed to evaluate and compare the effects of tea tree oil (TTO) and its principal component terpinen-4-ol (TER) on the morpho-functional parameters of swine spermatozoa. Experimental samples were prepared by suspending 15 × 107 spermatozoa in 5 mL of medium with different concentrations of the above-mentioned compounds: from 0.2 to 2 mg/mL at an interval of 0.2 for TTO, while TER concentrations were adjusted according to its presence in TTO (41.5%). After 3 h incubation at 16 °C, samples were analyzed for pH, viability, acrosome status, and objective motility. The results highlighted a concentration-dependent effect of TTO with total motility as the most sensitive parameter. TER was better tolerated, and the most sensitive parameters were related to membrane integrity, suggesting a different pattern of interaction. The study confirms the importance of evaluating the effects of natural compounds on spermatozoa before exploiting their beneficial effects. Spermatozoa seem to be good candidates for preliminary toxicological screenings in the light of their peculiar properties.

scholarly journals Essential Oils for Complementary Treatment of Surgical Patients: State of the Art

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Susanna Stea ◽  
Alina Beraudi ◽  
Dalila De Pasquale
Keyword(s):  
Essential Oils ◽  
Surgical Patients ◽  
Tea Tree Oil ◽  
Oral Ingestion ◽  
Clinical Safety ◽  
Tea Tree ◽  
Safety Standards ◽  
Anxiety Treatment ◽  
Control Pain ◽  
Positive Results

Aromatherapy is the controlled use of plant essences for therapeutic purposes. Its applications are numerous (i.e., wellbeing, labour, infections, dementia, and anxiety treatment) but often they have not been scientifically validated. The aim of the present study is to review the available literature to determine if there is evidence for effectiveness of aromatherapy in surgical patients to treat anxiety and insomnia, to control pain and nausea, and to dress wound. Efficacy studies of lavender or orange and peppermint essential oils, to treat anxiety and nausea, respectively, have shown positive results. For other aspects, such as pain control, essential oils therapy has shown uncertain results. Finally, there are encouraging data for the treatment of infections, especially for tea tree oil, although current results are still inconclusive. It should also be considered that although they are, allergic reactions and toxicity can occur after oral ingestion. Therefore, while rigorous studies are being carried out, it is important that the therapeutic use of essential oils be performed in compliance with clinical safety standards.

scholarly journals Essential oils and metal ions as alternative antimicrobial agents: a focus on tea tree oil and silver

2016 ◽  
Vol 14 (2) ◽  
pp. 369-384 ◽  
Author(s):  
Wan-Li Low ◽  
Ken Kenward ◽  
Stephen T Britland ◽  
Mohd CIM Amin ◽  
Claire Martin
Keyword(s):  
Essential Oils ◽  
Metal Ions ◽  
Antimicrobial Agents ◽  
Tea Tree Oil ◽  
Tea Tree

scholarly journals Antimicrobial activity of the volatile substances from essential oils

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Mareshah Abers ◽  
Sydney Schroeder ◽  
Linna Goelz ◽  
Adrienne Sulser ◽  
Tiffany St. Rose ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oils ◽  
Antibacterial Agents ◽  
Bacterial Species ◽  
Antimicrobial Properties ◽  
Zone Of Inhibition ◽  
Historical Evidence ◽  
Volatile Constituents ◽  
Volatile Substances ◽  
Tea Tree

Abstract Background Essential oils are volatile and lipophilic liquid extracts made from plants as secondary metabolites that can be obtained by distillation. To date, several studies have investigated the direct antimicrobial activity of liquid essential oils. However, this study investigated the antimicrobial properties of the volatile substances present in various essential oils. Methods A modified zone of inhibition protocol was developed using agar petri dishes with a center glass vial to allow evaporation and aerosolization of the potential active constituents from essential oils. In total, nineteen essential oils were tested against five Gram positive bacterial species, five Gram negative bacterial species and one fungi. Results This study found potent antimicrobial activity from the volatile constituents of several essential oils. Rosemary, tea tree, and cassia volatiles were found to be the best broad-spectrum antibacterial agents, whereas clove volatiles had almost no antimicrobial activity. Conclusions These results support the anecdotal historical evidence of the antimicrobial activity of the volatile constituents essential oils. Modern medical implications for this work may be related to the use of aromatic essential oils for respiratory or dermatological infections.

scholarly journals River Tea Tree Oil: Composition, Antimicrobial and Antioxidant Activities, and Potential Applications in Agriculture

Plants ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 2105
Author(s):  
Mursleen Yasin ◽  
Adnan Younis ◽  
Talha Javed ◽  
Ahsan Akram ◽  
Muhammad Ahsan ◽  
...  
Keyword(s):  
Antioxidant Activities ◽  
Bacterial Species ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Reducing Power ◽  
Butylated Hydroxytoluene ◽  
Tea Tree Oil ◽  
Tea Tree ◽  
Potential Applications ◽  
Pharmaceutical Industries

Melaleuca is one of the genera of the Myrtaceae family enriched in tea tree oil (TTO). Tea tree oils of Melaleuca bracteata and Melaleuca alternifolia are of prime importance and have antioxidant and antimicrobial properties. Terpinen-4-ol and 1-8 cineole are major constituents of M. alternifolia oil. The percentages of the compounds in the oils can slightly vary according to the region of plant harvest, the distillation technique, or the part of the plant used for oil extraction. TTO has a bactericidal effect against various bacterial species such as Bacillus cereus, B. subtilis, E. coli, Pseudomonas putida, and S. aureus. Several reports proved that this essential oil is also effective against fungal strains of Fusarium, Aspergillus, and Candida species. It also has antioxidant properties such as radical scavenging activity and reducing power. The antioxidant properties of TTO at a concentration of 30 mM were observed to be greater than those of butylated hydroxytoluene (BHT), commonly used as a synthetic antioxidant. TTO is also an effective organic fungicide, herbicide, and insecticide for use in the agriculture sector. Postharvest application of the oil has been found efficient on sweet basil, citrus, and strawberry. It is concluded that tea tree oil has the potential to be used in the food, agriculture, and pharmaceutical industries as a natural antimicrobial and preservative agent. This review provides comprehensive information regarding the antioxidant and antimicrobial activities of tea tree oil and its potential applications in agriculture.

scholarly journals The application of tea tree essential oil in dentistry

2007 ◽  
Vol 54 (2) ◽  
pp. 106-114
Author(s):  
D. Markovic ◽  
B. Mirkovic ◽  
T. Jovanovic ◽  
A. Knezevic ◽  
T. Nastovski
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Fusobacterium Nucleatum ◽  
Viral Diseases ◽  
Prevotella Intermedia ◽  
Tea Tree Oil ◽  
Melaleuca Alternifolia ◽  
Tea Tree ◽  
Plant Substances

Essential oils are widely used in medicine, dentistry and cosmetology as flavour and odour corrigents in various substances for oral hygiene. The aim of this study was to present comprehensively the possibilities for application of Melaleuca Alternifolia essential oil in dentistry based on the analysis of contemporary scientific and professional publications. The application of Tea tree essential oil in the treatment of periodontal, fungal and viral diseases is very efficient. The study of antimicrobial potential of ten different essential oils confirmed the efficiency of Tea tree oil against numerous Gram+ and Gram- bacteria. In vitro studies of bacteriostatic, bactericidal and fungicidal effect of Tea tree oil solution against ten different microorganisms confirmed sensitivity of the following microorganisms: Actinobacillus actinomycetemcomitans, Fusobacterium nucleatum and Porphyromonas gingivalis, and slightly weaker effect against Streptococcus Mutans and Prevotella intermedia. Tea tree is very effective in the treatment of various diseases and is an introduction and momentum for the application of plant substances in the treatment of numerous diseases in dentistry. .

Sign in / Sign up

Export Citation Format

Share Document