ducrosia anethifolia (dc.) boiss. is belongs to the apiaceae family. it is one of the three species of iranian ducrosia boiss. species growing wild in several areas of the country. in this research, we extracted the essential oil and it analyzed by gc/ms. the analysis of essential oil from leaves of d. anethifolia about 19 constituents was identifed and percentage composition was determined (94...

background: rosemary (rosmarinus officinalis l.) as a member of the lamiaceae family is a valuable aromatic and medicinal plant which is cultivated in large scale in iran. therefore, it is necessary to determine influence of factors affecting plant growth and drug metabolite production. objectives: this experiment was carried out to evaluate the effects of bio-stimulators compounds on growth an...

background: the genus lagochilus, family lamiaceae consists of 44 species, 33 of which grow in central asia. only one report on the analysis of essential oil of lagochilus species has been published. objective: aim of this study is to determine the chemical composition and antimicrobial activities of the hydrodistilled oil of flower and leaves of lagochilus kotschyanus boiss. of iranian origin ...

Abstract Background Essential oils from aerial parts of Achillea wilhelmsii , Tanacetum polycephalum and Teucrium polium were isolated by using Clevenger-type apparatus tested at different concentrations for their nematicidal activity against the second stage juvenile (J2) Meloidogyne incognita in vitro condition. The chemical components essential seed extracts each plant (0.2 g) extracted with...

The aim of the present study was to investigate the various chemical components present in the volatile oil of the leaf of Cupressus torulosa and to find variation of essential oil components among the populations. Twenty-two, 17 and 20 compounds were identified with 95.45, 95.45 and 91.45% in Kalsi, Joshimath and Jeharikhal, respectively were identified by gas chromatography-mass spectrometry ...

The essential oils obtained by hydrodistillation from the aerial parts of Hypericum perforatum L. and Hypericum scabrum L. from plants growing wild in Tajikistan were analyzed by GC-MS. Sixty-six compounds were identified in the essential oils of H. perforatum with germacrene D (13.7%), α-pinene (5.1%), (E)-caryophyllene (4.7%), n-dodecanol (4.5%), caryophyllene oxide (4.2%), bicyclogermacrene ...

X-Ray crystal structures are reported for five silver(I) complexes of four monoterpenoid alkenes. Discrete mononuclear complexes of the chiral alkenes (1S)-(-)-α-pinene and (1S)(-)-β-pinene with silver perchlorate and silver hexafluorophosphate are described. The achiral diene γ-terpinene forms a discrete mononuclear adduct with silver hexafluorophosphate and a two-dimensional polymeric network...

Juniperus communis is a shrub or small evergreen tree, native to Europe, South Asia, and North America, and belongs to family Cupressaceae. It has been widely used as herbal medicine from ancient time. Traditionally the plant is being potentially used as antidiarrhoeal, anti-inflammatory, astringent, and antiseptic and in the treatment of various abdominal disorders. The main chemical constitue...

The essential oil from the dried leaves of Chromolaena odorata (L.) R.M. King & H. Rob. was obtained by hydrodistillation and analyzed by gas chromatography-mass spectrometry (GC-MS). The major components were α-pinene (42.2%), β-pinene (10.6%), germacrene D (9.7%), β-copaen-4α-ol (9.4%), (E)caryophyllene (5.4%), and geijerene/pregeijerene (7.5%). The oil was screened for antimicrobial activity...

The build-up of oligomeric compounds during secondary organic aerosol (SOA) formation is subject of atmospheric research since several years. New particle formation and especially the SOA mass yield might be influenced significantly by oligomer formation. However, the chemical nature of observed oligomers and their formation pathways are still unclear. In this paper, the structural characteriza...