3-Substituted benzylidene-1,3-dihydro-indoline derivatives were tested for their in vitro antibacterial activity against the Gram-negative bacteria Klebsiella pneumoniae, Pseudomonas aeruginosa, Escherichia coli, and the Gram-positive bacteria Bacillus subtilis, Staphylococcus aureus, and for their their in vitro antifungal activity against Candida krusei and Candida albicans. The minimum inhib...

The composition and antimicrobial activity of the essential oil of Nepeta crispa Willd., an endemic species from Iran, was studied. The oil was obtained from the aerial parts of the plant and analyzed by GC and GC/MS. Twenty-three compounds, accounting for 99.8% of the total oil, were identified. The main constituents were 1,8-cineol (47.9%) and 4aalpha,7alpha,7abetanepetalactone (20.3%). The a...

Background & Aims: Microorganisms are protected from antimicrobial agents when placed in biofilm structure. Biofilm-producing microorganisms are responsible for many problems in industry and medicine; therefore, it is essential to find new techniques for removing and inhibiting biofilms. This study aimed to examine the antimicrobial effect of Eucalyptus camaldulensis alcoholic extracts against ...

The evaluation of the activity of the aqueous and ethyl acetate extracts of the leaves of Piper regnellii was tested against gram-positive and gram-negative bacteria. The aqueous extract displayed a weak activity against Staphylococcus aureus and Bacillus subtilis with minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC) of 1000 micrograms/ml. The ethyl acetate ex...

zinc sulphate and boric acid ophthalmic preparations, containing benzalkonium chloride as preservative, have been investigated against gram-negative and positive bacteria. viability of bacteria was found after 7 days, although it was completely suppressed after 24 hours of inoculation. zinc sulphate generally increases the antimicrobial activity of benzalkonium chloride, whereas boric acid or i...

Medicinal plants are in rich source of antimicrobial agents. The present study was carried out to evaluate the antibacterial and antifungal effect of five important plants namely, Andrographis paniculata, Bacopa monnieri, Centella asiatica, Nardostachys jatamansi ,Saraca indica. The preliminary phytochemical analysis was tested by using different extract of these plants for the presence of vari...

Treatments of bacterial infections have become a difficult task in the medical practice due to high level of resistance to the existing marketed antibiotics. This problem evoked us to search for new antimicrobial agent for better management of bacterial infections. The present study was carried out to evaluate antimicrobial properties of epidermal mucus (soluble mucin or s-mucin). s-mucin was e...

A systematic approach was taken to isolate and characterize the antimicrobial peptide(s) from the crude aqueous extract, solubilized ammonium sulphate precipitates and purified gel filtration chromatographic fractions of seed/pod of Pisum sativum L. (garden pea). Their antibacterial activity was investigated against a number of bacteria: Micrococcus luteus, Staphylococcus aureus, Staphylococcus...

plants are rich source of natural products used for centuries to cure various the plant-derived medicines are based upon the premise that they contain natural substances that can promote health and alleviate illness. silver nps represent material, which can be used as a potential antibacterial agent in medical applications and different commercial products due to its biological activity. recent...