the chemical composition of the essential oils of flower at the pre-flowering, full-flowering and post-flowering stage of a. annua was analyzed by gc and gc/ms and sixty-two components were identified. the main compounds in the pre-flowering oil were β-myrcene (37.71%), 1, 8-cineole (16.11%) and camphor (14.97%). the full-flowering oil contained predominantly caryophyllene (19.4%), germacrene d...

the chemical composition of the volatile oil from aerial parts of hypericum triquetrifolium turra was studied by gc-ms. fifty components (97.1% of the total composition) were detected in the volatile oil. germacrene-d (21.7%), b-caryophyllene (18.3%), d-cadinene (6.4%), trans -b-farnesene (4.3%), a-humulene (3.8%), b-selinene (3.7%), γ-cadinene (3.3%) and trans -phytol (3.2%) were found to be t...

Iran is one of the major centres diversity for Salvia, with 58 species which 25% are endemic. A literature-based survey chemical profile Salvia essential oil found in was carried out. As a result, 46 belonging to genus were identified their composition. concise review scientific literature pertaining components oils and volatile fractions presented. The present showed that Iranian have been cla...

Chicory (Cichorium intybus L.), which is known to have a variety of terpene-hydroxylating activities, was screened for a P450 mono-oxygenase to convert (+)-valencene to (+)-nootkatone. A novel P450 cDNA was identified in a chicory root EST library. Co-expression of the enzyme with a valencene synthase in yeast, led to formation of trans-nootkatol, cis-nootkatol and (+)-nootkatone. The novel enz...

kelussia odoratissima mozaff. is an iranian endangered endemic edible plant with enormous use in the middle region of iran as food and spice especially yogurt seasoning, and as medicinal herb as anti-inflammatory and cardiovascular purposes. although antioxidant, anti-inflammatory and hypolipidemic effects of this plant have so far been studied, but chemical analyses of the non volatile constit...

Background Anthriscus caucalis is a non-native plant in North America with invasive potential. As part of our interests essential oils the Great Basin, wild-growing sample A. was collected southwestern Idaho. Methods The obtained by hydrodistillation and analyzed gas chromatographic methods (GC–MS, GC–FID, chiral GC–MS). Results major components oil were cis-chrysanthenyl acetate (42.3%), myrce...