AIM/BACKGROUND The emergence of drug-resistant pathogens has drawn attention on medicinal plants for potential antimicrobial properties. The objective of the present study was the investigation of the antimicrobial activity of five plant essential oils on multidrug resistant Gram-negative bacteria. MATERIALS AND METHODS Basil, chamomile blue, origanum, thyme, and tea tree oil were tested agai...

Bioactive essential oil components, aldehydes, terpenes and phenols can be encapsulated into nanosized emulsified droplets. Nano-encapsulated bioactive oils emulsions were prepared by high amplitude ultrasonic homogenization with food grade ingredients. The effect of delivery system on the antimicrobial activity of different oils components, e.g., carvacrol, lemon grass and cinnamaldehyde, was ...

Essential oils are one of the most notorious natural products used for medical purposes. Combined with their popular use in dermatology, their availability, and the development of antimicrobial resistance, commercial essential oils are often an option for therapy. At least 90 essential oils can be identified as being recommended for dermatological use, with at least 1500 combinations. This revi...

Treatments for bovine mastitis based on antibiotic therapy are not always effective which may lead to faults in recovery of diseased animals, selection of resistant bacteria and the presence of antimicrobial residues in milk. In this context the use of essential oils configures as an alternative to control mastitis pathogens in dairy cows because they have antibacterial action against gram-posi...

Background and objectives: Pterocarya fraxinifolia Lam. is a deciduous, fast-growing tree from walnut family. The stem barks and fruits of the plant have been used as diaphoretic in traditional medicine. Variation in the quantity and quality of the essential oil and extract of stems of the plant at different developmental stages was evaluated in addition to assessing t...

The essential oil was obtained by hydrodistillation and the identification and quantification of components were achieved with the use of GC-MS analysis. The antioxidant activity was evaluated by the method of sequestration of DPPH. Essential oils were used for study the cytotoxic front larvae of Artemia salina. In the evaluation of the antimicrobial activity of essential oils, we employed the ...

The chemical composition of the essential oils was influenced by many factors including extraction methods. In this study, the effect of extraction methods; hydrodistillation, microwave assisted hydrodistillation and solvent free microwave extraction of Mentha piperita L. growing in Taif, KSA, on the yield and chemical composition of their essential oils were investigated. Furthermore, the oils...

pseudomonas aeruginosa is an important opportunistic pathogen causing widespread infections by numerous virulence factors. increasing resistance to antibiotics makes the pseudomonas infections treatment further difficult. the purpose of this study was to evaluate antimicrobial characteristics of essential oils from matricaria chamomilla, artemisia persica, zataria multiflora, myrtus communis, r...

An alarming increase in biofilm forming methicillin-resistant Staphylococcus aureus (MRSA) possesses a serious problem in hospital environment demands a renewed effort to seek agents from natural system that are effective against pathogenic bacteria resistant to current antimicrobials. In the study, the distribution of biofilm forming MRSA and the antibacterial activity of essential oils (Eucal...