scholarly journals Selected Antimicrobial Essential Oils Eradicate Pseudomonas spp. and Staphylococcus aureus Biofilms

2012 ◽  
Vol 78 (11) ◽  
pp. 4057-4061 ◽  
Author(s):  
Nicole L. Kavanaugh ◽  
Katharina Ribbeck
Keyword(s):  
Staphylococcus Aureus ◽  
Antibiotic Resistance ◽  
Essential Oils ◽  
Living Cells ◽  
Free Living ◽  
Pseudomonas Spp ◽  
Antimicrobial Treatments ◽  
And Staphylococcus Aureus

ABSTRACTBiofilms are difficult to eliminate with standard antimicrobial treatments due to their high antibiotic resistance relative to free-living cells. Here, we show that selected antimicrobial essential oils can eradicate bacteria within biofilms with higher efficiency than certain important antibiotics, making them interesting candidates for the treatment of biofilms.

scholarly journals Antibiotic Resistance in Escherichia coli and Staphylococcus aureus from Retail Chicken Meat in Surabaya, Indonesia

2020 ◽  
Vol 3 (2) ◽  
pp. 80
Author(s):  
Annisa Aulia Maghfirani Sudarmadi ◽  
Subur Prajitno ◽  
Agung Dwi Wahyu Widodo
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antibiotic Resistance ◽  
Growth Promotion ◽  
Infectious Agent ◽  
Sampling Technique ◽  
Chicken Meat ◽  
Meat Sample ◽  
Meat Samples ◽  
And Staphylococcus Aureus

Introduction: Antimicrobial resistance is becoming a problem in public health. Zoonotic food-borne bacteria is infectious agent that can be transferred from animal to human through the food-producing animal we consume. Nowadays, antibiotic used for human and animal is not only to cure infection but also to aim animal’s growth promotion. It is known as non therapeutic antimicrobial agent (NTA) leading to antibiotic resistance. The third generation cephalosporins, cefotaxime, and also cefoxitin are included as important antibiotic for human. This study aims to identify the presence of cefotaxime-resistant Escherichia coli and cefoxitin-resistant Staphylococcus aureus isolated from chicken meat of both traditional and modern market in Surabaya.Methods: This is descriptive post test only experimental research. We used 8 samples of chicken meat from 4 different market using purposive sampling technique. We cultured Escherichia coli and Staphylococcus aureus from the chicken meat. Sensitivity test was done using Kirby-bauer disk-diffusion method.Results: All chicken meat sample bought from traditional market in Surabaya are contaminated by cefotaxime-sensitive Escherichia coli (n=4/4) while chicken meat sample bought from modern market are not contaminated by Escherichia coli (n=0/4). All chicken meat sample bought from traditional (n=4/4) are also contaminated by cefoxitin-sensitive Staphylococcus aureus. Half of chicken meat sample bought from modern market (n=2/4) are contaminated by cefoxitin-sensitive Staphylococcus aureus, while the other half (n=2/4) are contaminated by cefoxitin-resistant Staphylococcus aureus.Conclusion: Antibiotic resistance is found and all chicken meat samples have been highly contaminated with bacteria therefore food-processing should be done correctly.

scholarly journals Antibacterial Activity of Leaves and Rhizome of Curcuma xanthorrhiza Essential Oils on Different Distillation Time

2018 ◽  
Vol 3 (3) ◽  
pp. 116-120
Author(s):  
Nur Syafiqah Nadiah Mohammad Rafi ◽  
Irmanida Batubara ◽  
Anthony Nyangson Steven
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Essential Oils ◽  
Mobile Phase ◽  
Clear Zone ◽  
Rf Values ◽  
Curcuma Xanthorrhiza ◽  
Layer Chromatography ◽  
And Staphylococcus Aureus

This research aims to determine the antibacterial activity of Curcuma xanthorrhiza leaves and rhizomes essential oil with different distillation time of 2 hours, 4 hours and 6 hours against Escherichia coli and Staphylococcus aureus. The essential oils produced then separated by thin layer chromatography (TLC) with n-hexane: toluene: dichloromethane 1:8:1 as the mobile phase. The result shows that on the first two hours distillation gave the highest yield compared to the next two hours or four hours. Based on TLC chromatograms, the highest content of compounds found at 4-6 hours distillation time. TLC bioautography contact was used for antibacterial activity tested on chromatogram and the clear zone appears on it indicates the spots were active as antibacterial activity against both bacteria with Rf values of 0.35 and 0.49 for rhizomes, rhizome essential oils 4-6 hours distillation time as the most significance active.

Sub-inhibitory concentration of essential oils induces antibiotic resistance in Staphylococcus aureus

2017 ◽  
Vol 33 (10) ◽  
pp. 1509-1513 ◽  
Author(s):  
Barbara Turchi ◽  
Simone Mancini ◽  
Luisa Pistelli ◽  
Basma Najar ◽  
Filippo Fratini
Keyword(s):  
Staphylococcus Aureus ◽  
Antibiotic Resistance ◽  
Essential Oils ◽  
Inhibitory Concentration
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