Allelopathy refers to the chemical inhibition or stimulation of one species by another which could influence on the growth or germination of other plant and used in control of weed in agricultural practices. In this sense in order to study the possibly allelopathic effects of lemon balm, bitter apple and lemon verbena medicinal plants on control of wild mustard weed, a laboratory experiment was...

background and objectives: essential oils are volatile compounds that have been used since middle ages as antimicrobial, anti-inflammatory, sedative, local anesthetic and food flavoring agents.in the current study, essential oils of pelargonium graveolens l’her and vitex agnus-castus l . were analyzed for their antibacterial activities. materials and methods: the chemical compositions of essent...

the objective of the present study was to investigate the effect of different doses of some 7 natural semi-arid medicinal plants’ essential oils on in vitro ruminal digestion and fermentation patterns of a mid-forage (alfalfa hay: concentrates, 1:1) diet. treatments consisted of either basal diet alone (control) or added with 35, 70, 140 or 280 µl l-1 of coriander, oregano, caraway, cumin, cinn...

background: essential oils and their major constituents are useful sources of antimicrobial compounds. there are a few reports on the decontamination and antimicrobial activity of essential oils towards shigella spp. m aterials and methods: in this study, the antimicrobial and decontamination potentials of essential oils at different concentrations, belonging to plants such as thymus vulgaris, ...

the composition of essential oil isolated from achillea eriophora, achillea millefolium, achillea biebersteinii and achillea tenuifolia growing wild in the south west of iran, was analyzed.  a. eriophora, a. millefolium and a. tenuifolia essential oils were characterized by sabinene, 1, 8-cineole, terpinene-4-ol, ά –bisabolol, p-cymene, β-pinene and α-pinene. the a. biebersteinii essential oil ...

The essential oils of the leaves and fine stems of Pilocarpus microphyllus, collected on iron mineralized soil of the Serra de Caraj s, Southeast of Par State, Brazil, during the rainy and dry seasons, were obtained by hydrodistillation and analyzed by GC-MS. The main identified compounds were 2-tridecanone, beta-caryophyllene, 2-pentadecanone, caryophyllene oxide and germacrene D. Their perce...

essential oils are volatile mixtures of hydrocarbons with diverse functional groups. in the current study the effect of essential oils from five medicinal plants including zataria multiflora and nepeta cataria (lamiaceae), tagetes minuta and artemisia sieberi (asteraceae), and trachyspermum ammi (apiaceae) were analyzed using gc-mass spectrometry. the toxicity of these plant essential oils agai...

many parameters affect essential oil yield and chemical composition of aromatic plants. for obtaining the highest quantity and quality of essential oil, it is necessary to know the proper methods of drying and distillation. the aim of this research was to investigate the influence of drying and extraction methods on the yield and chemical composition of the essential oil of eucalyptus sargentii...