Introduction Conclusions References

Chemical composition of the essential oils extracted from the leaves, stems, flowers and seeds of  Heracleum rechingeri Manden. were analyzed by GC and GC/MS. Twenty-four components were characterized for the leaf oil with Octyl acetate(47.2%), Octanol(15.2%) and E-caryophyllen (5.7%) as the main constituents. 25 compounds were identified in the stem oil with Elemicin (65.3%), Octyl acetate (13...

recent data showed that phenylpropanoid compound, methylchavicol is essential component of iranian cultivars of basil. studying their occurrence during development of plant may help to elucidate the role of phenylpropanoids in plant cell physiology. we followed the phenylpropanoids concentration and the expression of genes related to their biosynthesis during growth and development of two culti...

The study was conducted to determine fennel essential oil (FEO) yield, composition, and antioxidant activity during four different maturation stages of umbels with seeds (1st stage: immature-pasty; 2nd premature-waxy; 3rd mature-fully ripe; 4th only), leaves wild (Foeniculum vulgare Mill. subsp. vulgare) from the Montenegro coast. maximum yield found in premature at waxy stage (4.76 mL/100 g p....

chemical composition of the essential oils extracted from the leaves, stems, flowers and seeds of  heracleum rechingeri manden. were analyzed by gc and gc/ms. twenty-four components were characterized for the leaf oil with octyl acetate(47.2%), octanol(15.2%) and e-caryophyllen (5.7%) as the main constituents. 25 compounds were identified in the stem oil with elemicin (65.3%), octyl acetate (13...

In this paper we report chemically resolved measurements of organic aerosol (OA) and related tracers during the Biosphere Effects on Aerosols and Photochemistry Experiment (BEARPEX) at the Blodgett Forest Research Station, California from 15 August–10 October 2007. OA contributed the majority of the mass to the fine atmospheric particles and was predominately oxygenated (OOA). The highest conce...

Background: The increasing amount of sewage sludge (SS) and more legislative regulation of its disposal have stimulated the need for developing new technologies including gamma irradiation to recycle SS efficiently. Objective: To evaluate the effects of gamma irradiated and non-irradiated SS (SSGI and SSNI, respectively) on essential oil (EO) content and composition of Ocimum basilicum L. Me...

The plant Tagetes lucida Cav. (syn. T. florida Sweet, T. schiedeana Less.) is an aromatic herb distributed naturally from Mexico to Honduras, at elevations between 1 000 and 2 000 m. It is used as a spice, for medicine, as insecticide and as ornamental plant. It is cultivated commercially in Costa Rica as a spice herb; it contains an oil having an anise-like odor, and the fresh aerial parts of ...