the achillea l. genus has a wide distributional range, and the differences in oil composition may be affected by different environmental factors such as soil mineral fertilization, the climate conditions and the culture site. to evaluate the effect of temperate climate on content and chemical combination of essential oil of achillea filipendulina lam,  a. arabica kotschy and a. eriophora dc., t...

the essential oils from compositae specie of iran: centaurea behen l. obtained by hydrodistillation was analyzed by gc and gc/ms.  β-caryooyllane (24.5%), β-selinene (13.9%) and valencene (11.7%) were the main components among the sixteen constituents characterized in the oil of centaurea behen representing  93.7% of the total components detected.

hydro-distilled volatile oils from the flowers and leaves of eupatorium cannabinum l. which gathered in touchal on mountain alborz (tehran province) in iran were investigated mainly by a combination of gc and gc/ms. thirty-nine components were identified in the oils. the main constituents of the essential oils in flowers and leaves were germacrene d (27.3%, 37.1%), gemacrene b (12.4%, 11.7%) an...

background: achillea tenuifolia lam. (compositae) with small yellow flowers and several times pinnately divided leaves in worm shape is known for many years in the folk medicine. it has been used to reduce sweating and to stop bleeding. it helps regulation of the menstrual cycle and reduces heavy bleeding and pain. materials and methods: plant material (flower, leaf and stem) was collected in k...

the genus boswellia is one of the 17 genera belonging to burseraceae family. in this study resin of boswellia carteri birdwoodcollected or purchased from tehram herbal market as a food and non-food for chemical analysis. the essential oils of the resins of boswellia carteri birdwoodobtained by different methods of distillation (water distillation, steam distillation and hydro-steam distillation...

objectives: evaluation of therapeutic effects of carum copticum (c. copticum) has been the subject of several studies in recent years. thymol the major component of c. copticum is a widely known anti-microbial agent. in this study, the antibacterial and anti viral activities of essential oil of c. copticum fruit were determined. materials and methods: essential oil of c. copticum was analyzed b...

background artemisia aerial parts are well known for antimicrobial activities including anti malaria. objectives this study was carried out to evaluate the antimicrobial activity and chemical composition of essential oil from the seeds of artemisia aucheri boiss (asteraceae). materials and methods essential oil was extracted from the powdered seeds of artemisia aucheri by hydrodistillation. ant...

the hydrodistilled oil of the aerial parts of echiophora platyloba dc. was analyzed by gc and gc/ms. ten components have been identified, of which the major constituents were found to be trans-b -ocimene (67.9%), 2-furanone (6.2%), myrcene (6.0%), linalool (3.1%), and cis-b -ocimene (2.3%).

the present work was designed to study the antioxidant activity and to identify the main active components of the essential oil of ajowan (trachyspermum copticum) fruit. gc and gc-ms analyses of the essential oil showed the presence of eight compounds. the main constituents of the oil were thymol (43.7%), p-cymene (26.8%), and γ-terpinene (24.9%). the antioxidant and free radical scavenging act...

the roots and rhizomes of tanacetum parthenium (l.) schulz. bip. (asteraceae), have been used in iranian traditional medicine under the name of aqhovan, as digestive and stomachic tonic. composition of the essential oil, which was obtained from the root of t. parthenium collected from karaj, was determined by gas chromatography, combined gc/ms and gc/ir. in total, 20 components (92% of essentia...