BACKGROUND Essential oils are used in perfumery and in products for aromatherapy or balneotherapy. Previous studies have shown some to be important contact sensitizers. A practical diagnostic approach, based on the results of a large, central European network and other evidence, is needed. METHODS Data of the Information Network of Departments of Dermatology (IVDK; www.ivdk.org) on all patien...

Orange essential oil (OEO) is mainly composed of D-Limonene and other oxygenated compounds that contribute to the orange flavor aroma. However, unstable in presence heat, light, water, affecting quality OEO. Therefore, objective this study was fractionate OEO by distillation, both molecular fractionated (hybrid), producing a D-Limonene-rich fraction. The characterized physicochemical tests gas ...

BACKGROUND The constituents in a food emulsion interact with each other, either physically or chemically, determining the overall physico-chemical and organoleptic properties of the final product. Thus, the main objective of present study was to investigate the effect of emulsion components on beverage emulsion properties. RESULTS In most cases, the second-order polynomial regression models w...

Orange peel essential oil is a common value-added product from orange juice processing waste. It antimicrobial and used to produce films coatings. This study reports the first development of using as powder (OPP) instead extracted oil. The OPP amount needed for was determined by studying effects on conidia germination inhibition (minimum inhibitory concentration (MIC)) mycelial growth reduction...

turmeric is an important herb used as medicines, turmeric is an important herb used as medicine, condiment and cosmetic. its main active compounds are curcuminoids and essential oils. the biomass production, essential oil composition and curcuminoid content of curcuma longa are known to be dependent on the growth and development conditions of rhizome. iran is a major importer of turmeric in the...

essential oils and their components are becoming increasingly popular as naturally occurring antimicrobial agents. in this work the chemical composition and antimicrobial activity of ferula gumosa essential oils were determined. the essential oil components were identified by gc/ms analysis. the minimum inhibitory concentration (mic) of essential oil against five selected pathogenic microorgani...

background & aim: salvia hydrangea is one of the medicinal plants belonging to lamiaceae family. medicinal plants can be marketed as fresh or dried products; however aromatic plants are often dried before extraction to reduce moisture content. the aim of this study was to evaluate the impact of different drying methods on qualitative and quantitative changes in essential oil of sage. experiment...

b a ckground: using special lotions and repellent sprays on skin is one of the effective methods to prevent arthropods biting which was verified in this study. m e t hods: essential oils of four plants ( satureja khuzestanica, salvia sclarea , lavendula officinalis and myrtus communis ) were separately extracted by clevenger used hydro distillation method. then separated solutions with 10%, 20%...

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...

evaluation of essential oil yield, morphological and phenological traits of seven populations of twochamomilespecies )matricaria aurea and m. recutita), were carried out using randomized completely blocks design (rcbd) in three replications in alborz research station in karaj, iran during 2011-2012. data were collected for 12 morphological and phenological traits. analysis of variance showed si...