background & aim: by increasing resistance of fish pathogens to chemical drugs, using herbal plants with antimicrobial properties is necessary.in this study, the composition of the essential oil and antimicrobial activity of aerial parts of achillea wilhelmsii c.koch growing wild in zagross mountain (southwest of iran) was analyzed against common bacterial and fungal pathogens of fish. expe...

the leaves of arum conophalloides (araceae) were used in some west areas of iran as a dessert. the aerial parts of the herb were collected from sahneh mountains, kermanshah province, west of iran and was hydrodistilled by klevenger-type apparatus. composition of the essential oil was determined by gc and gc/ms. totally, 18 components (92% of total essential oil) were identified. the oil contain...

objectives: the objective of this research was to investigate the chemical composition and antibacterial activities of the fatty acids and essential oil from various parts of ligularia persica boiss (l. persica) growing wild in north of iran. materials and methods: essential oils were extracted by using clevenger-type apparatus. antibacterial activity was tested on two gram-positive and two gra...

objective: this study is designed to extract and examine chemical composition, antimicrobial and antioxidant activity of the hydro-distillated essential oil of murraya koenigii leaves from the south region of tamilnadu, india. matherials and methods: gas chromatography (gc) and gas chromatography-mass spectrometry (gc-ms) analysis of the essential oil result was indicates the 33 different compo...

background & aim:mentha longifolia (l.) huds is an aromatic perennial herb that belongs to the   family lamiaceae. the aim of this study was to identify chemical composition of aerial parts   (including leaf, stem and flowers) of m. longifolia collected from   (kamu mountain) isfahan province. experimental: the essential oils were extracted   using the hydrodistillation method and analysed by g...

chamomile is a medicinal plant with high economic value. in this research, 20 chamomile ecotypes collected from different regions of iran were evaluated for genetic and chemical diversity. dna was extracted by ctab and polymerase chain reaction was performed using 13 rapd markers. essential oils extraction was performed by water distillation using clevenger system. components of the essential o...

  Background: Lavender’s essential oil is commonly used in aromatherapy and massage. Its major clinical benefits are on the central nervous system. Linalyl acetate and linalool are the most predominant chemical constituents in the essential oil of Lavandula angustifolia.   Objective: Comparison of super critical fluid extraction (SCFE) and hydrodistillation (HD) methods on Lavander΄s essential ...

background and objectives: this paper describes chemical composition and antimicrobial activity of cymbopogon nardus citronella essential oil against edwardsiella spp. (n = 21), vibrio spp. (n = 6), aeromonas spp. (n = 2), escherichia coli (n = 2), salmonella spp. (n = 2), flavobacterium spp. (n = 1), pseudomonas spp. (n = 1) and streptococcus spp. (n = 1) isolated from internal organs of aquat...

This study was conducted to evaluate the diurnal effect on essential oil yield and composition of Ledum palustre L. grown in northern Inner Mongolia, China. Essential oil content and composition were determined and compared as a function of different harvesting times viz. 7:00 AM, 11:00 AM, 3:00 PM, 7:00 PM, and 11:00 PM within a day. The essential oil obtained by hydrodistillation was investig...